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

annotate src/c/urweb.c @ 2270:1e3ba868f8bf

Merge.

author	Ziv Scully <ziv@mit.edu>
date	Mon, 19 Oct 2015 14:42:22 -0400
parents	34ad83d9b729 c76a9712334c
children	b49d22a4eda8

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@1486	17 #include <openssl/rand.h>
adam@1374	18 #include <time.h>
adam@1571	19 #include <math.h>
adamc@102	20
adamc@667	21 #include <pthread.h>
adamc@667	22
adamc@102	23 #include "types.h"
adamc@102	24
ziv@2234	25 #include "uthash.h"
ziv@2234	26
adam@1431	27 uw_unit uw_unit_v = 0;
adamc@102	28
adamc@667	29
adamc@667	30 // Socket extras
adamc@667	31
adamc@863	32 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	33 while (len > 0) {
adamc@856	34 ssize_t n = send(sock, buf, len, 0);
adamc@856	35
adamc@856	36 if (n < 0)
adamc@856	37 return n;
adamc@856	38
adamc@856	39 buf += n;
adamc@856	40 len -= n;
adamc@856	41 }
adamc@856	42
adamc@856	43 return 0;
adamc@856	44 }
adamc@856	45
adamc@856	46 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	47 while (len > 0) {
adamc@856	48 ssize_t n = write(fd, buf, len);
adamc@667	49
adamc@667	50 if (n < 0)
adamc@667	51 return n;
adamc@667	52
adamc@667	53 buf += n;
adamc@667	54 len -= n;
adamc@667	55 }
adamc@667	56
adamc@667	57 return 0;
adamc@667	58 }
adamc@667	59
adamc@667	60
adamc@667	61 // Buffers
adamc@667	62
adam@1369	63 void uw_buffer_init(size_t max, uw_buffer *b, size_t s) {
adamc@1113	64 b->max = max;
adamc@667	65 b->front = b->start = malloc(s);
adamc@667	66 b->back = b->front + s;
adamc@667	67 }
adamc@667	68
adam@1369	69 void uw_buffer_free(uw_buffer *b) {
adamc@667	70 free(b->start);
adamc@667	71 }
adamc@667	72
adam@1369	73 void uw_buffer_reset(uw_buffer *b) {
adamc@667	74 b->front = b->start;
ziv@2262	75 if (b->front != b->back) {
ziv@2262	76 *b->front = 0;
ziv@2262	77 }
adamc@667	78 }
adamc@667	79
adam@1369	80 int uw_buffer_check(uw_buffer *b, size_t extra) {
adamc@667	81 if (b->back - b->front < extra) {
adamc@667	82 size_t desired = b->front - b->start + extra, next;
adamc@667	83 char *new_heap;
adamc@667	84
adamc@667	85 next = b->back - b->start;
adamc@667	86 if (next == 0)
adamc@667	87 next = 1;
adamc@667	88 for (; next < desired; next *= 2);
adamc@667	89
adamc@1134	90 if (next > b->max) {
adamc@1113	91 if (desired <= b->max)
adamc@1113	92 next = desired;
adamc@1113	93 else
adamc@1113	94 return 1;
adamc@1134	95 }
adamc@1113	96
adamc@667	97 new_heap = realloc(b->start, next);
adamc@667	98 b->front = new_heap + (b->front - b->start);
adamc@667	99 b->back = new_heap + next;
adamc@667	100 b->start = new_heap;
adamc@667	101 }
adamc@1113	102
adamc@1113	103 return 0;
adamc@1113	104 }
adamc@1113	105
adamc@1113	106 __attribute__((noreturn)) void uw_error(uw_context, failure_kind, const char *, ...);
adamc@1113	107
adam@1369	108 static void ctx_uw_buffer_check(uw_context ctx, const char kind, uw_buffer b, size_t extra) {
adam@1369	109 if (uw_buffer_check(b, extra))
adamc@1113	110 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@667	111 }
adamc@667	112
adam@1369	113 size_t uw_buffer_used(uw_buffer *b) {
adamc@667	114 return b->front - b->start;
adamc@667	115 }
adamc@667	116
adam@1369	117 size_t uw_buffer_avail(uw_buffer *b) {
adamc@667	118 return b->back - b->start;
adamc@667	119 }
adamc@667	120
adam@1369	121 int uw_buffer_append(uw_buffer b, const char s, size_t len) {
adam@1369	122 if (uw_buffer_check(b, len+1))
adamc@1113	123 return 1;
adamc@1113	124
adamc@1113	125 memcpy(b->front, s, len);
adamc@1113	126 b->front += len;
adamc@1113	127 *b->front = 0;
adamc@1113	128
adamc@1113	129 return 0;
adamc@1113	130 }
adamc@1113	131
adam@1369	132 static void ctx_uw_buffer_append(uw_context ctx, const char kind, uw_buffer b, const char *s, size_t len) {
adam@1369	133 ctx_uw_buffer_check(ctx, kind, b, len+1);
adamc@1113	134
adamc@668	135 memcpy(b->front, s, len);
adamc@668	136 b->front += len;
adamc@672	137 *b->front = 0;
adamc@668	138 }
adamc@667	139
adamc@668	140
adamc@672	141 // Persistent state types
adamc@667	142
adamc@667	143 typedef enum { UNUSED, USED } usage;
adamc@667	144
adamc@667	145 typedef struct client {
adamc@682	146 unsigned id;
adamc@667	147 usage mode;
adamc@682	148 int pass;
adamc@682	149 struct client *next;
adamc@689	150 pthread_mutex_t lock, pull_lock;
adam@1369	151 uw_buffer msgs;
adamc@682	152 int sock;
adamc@863	153 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	154 int (*close)(int fd);
adamc@682	155 time_t last_contact;
adamc@682	156 unsigned n_channels;
adamc@685	157 unsigned refcount;
adamc@1121	158 void *data;
adamc@667	159 } client;
adamc@667	160
adamc@672	161
adamc@672	162 // Persistent client state
adamc@672	163
adamc@682	164 static client *clients, clients_free, *clients_used;
adamc@682	165 static unsigned n_clients;
adamc@667	166
adam@1707	167 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@1113	168 size_t uw_messages_max = SIZE_MAX;
adamc@1113	169 size_t uw_clients_max = SIZE_MAX;
adamc@1113	170
adamc@1121	171 void *uw_init_client_data();
adamc@1121	172 void uw_free_client_data(void *);
adamc@1121	173 void uw_copy_client_data(void dst, void src);
adamc@1121	174
adam@2104	175 static uw_Basis_int my_rand() {
adam@2105	176 int ret, r = RAND_bytes((unsigned char *)&ret, sizeof ret);
adam@2104	177 if (r)
adam@2105	178 return abs(ret);
adam@2104	179 else
adam@2104	180 return -1;
adam@2104	181 }
adam@2104	182
adamc@682	183 static client *new_client() {
adamc@667	184 client *c;
adamc@667	185
adamc@667	186 pthread_mutex_lock(&clients_mutex);
adamc@667	187
adamc@667	188 if (clients_free) {
adamc@667	189 c = clients_free;
adamc@682	190 clients_free = clients_free->next;
adamc@667	191 }
adam@1672	192 else if (n_clients >= uw_clients_max) {
adam@1672	193 pthread_mutex_unlock(&clients_mutex);
adamc@1113	194 return NULL;
adam@1672	195 } else {
adamc@667	196 ++n_clients;
adamc@667	197 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	198 c = malloc(sizeof(client));
adamc@667	199 c->id = n_clients-1;
adamc@682	200 pthread_mutex_init(&c->lock, NULL);
adamc@689	201 pthread_mutex_init(&c->pull_lock, NULL);
adam@1369	202 uw_buffer_init(uw_messages_max, &c->msgs, 0);
adamc@667	203 clients[n_clients-1] = c;
adamc@667	204 }
adamc@667	205
adamc@682	206 pthread_mutex_lock(&c->lock);
adamc@667	207 c->mode = USED;
adam@2104	208 c->pass = my_rand();
adamc@682	209 c->sock = -1;
adamc@682	210 c->last_contact = time(NULL);
adam@1369	211 uw_buffer_reset(&c->msgs);
adamc@682	212 c->n_channels = 0;
adamc@685	213 c->refcount = 0;
adamc@1121	214 c->data = uw_init_client_data();
adamc@682	215 pthread_mutex_unlock(&c->lock);
adamc@682	216
adamc@682	217 c->next = clients_used;
adamc@682	218 clients_used = c;
adamc@667	219
adamc@667	220 pthread_mutex_unlock(&clients_mutex);
adamc@667	221
adamc@667	222 return c;
adamc@667	223 }
adamc@667	224
adamc@685	225 static void use_client(client *c) {
adamc@685	226 pthread_mutex_lock(&c->lock);
adamc@685	227 ++c->refcount;
adamc@685	228 pthread_mutex_unlock(&c->lock);
adamc@689	229 pthread_mutex_lock(&c->pull_lock);
adamc@685	230 }
adamc@685	231
adamc@685	232 static void release_client(client *c) {
adamc@689	233 pthread_mutex_unlock(&c->pull_lock);
adamc@685	234 pthread_mutex_lock(&c->lock);
adamc@685	235 --c->refcount;
adamc@685	236 pthread_mutex_unlock(&c->lock);
adamc@685	237 }
adamc@685	238
adamc@856	239 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adam@1707	240 static pthread_t pruning_thread;
adam@1707	241 static int pruning_thread_initialized = 0;
adamc@667	242
adamc@682	243 static client *find_client(unsigned id) {
adamc@667	244 client *c;
adam@1708	245 int i_am_pruner = pruning_thread_initialized && pthread_equal(pruning_thread, pthread_self());
adam@1708	246
adam@1708	247 if (!i_am_pruner) pthread_mutex_lock(&clients_mutex);
adamc@667	248
adamc@667	249 if (id >= n_clients) {
adam@1708	250 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	251 return NULL;
adamc@667	252 }
adamc@667	253
adamc@667	254 c = clients[id];
adamc@667	255
adam@1708	256 if (!i_am_pruner) pthread_mutex_unlock(&clients_mutex);
adamc@668	257 return c;
adamc@668	258 }
adamc@668	259
adamc@856	260 static char *on_success = "HTTP/1.1 200 OK\r\n";
adam@1409	261 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	262
adamc@856	263 void uw_set_on_success(char *s) {
adamc@856	264 on_success = s;
adamc@856	265 }
adamc@856	266
adam@1552	267 static void chastise(int (send)(int sockfd, const void buf, ssize_t len), int sock) {
adam@1552	268 send(sock, on_success, strlen(on_success));
adam@1552	269 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1552	270 send(sock, "R", 1);
adam@1552	271 close(sock);
adam@1552	272 }
adam@1552	273
adamc@863	274 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	275 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	276 int (*close)(int fd),
adamc@864	277 void *logger_data, uw_logger log_error) {
adamc@682	278 client *c = find_client(id);
adamc@668	279
adamc@668	280 if (c == NULL) {
adam@1552	281 chastise(send, sock);
adamc@864	282 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	283 return;
adamc@667	284 }
adamc@667	285
adamc@682	286 pthread_mutex_lock(&c->lock);
adamc@671	287
adamc@682	288 if (c->mode != USED) {
adamc@682	289 pthread_mutex_unlock(&c->lock);
adam@1552	290 chastise(send, sock);
adamc@864	291 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	292 return;
adamc@667	293 }
adamc@667	294
adamc@682	295 if (pass != c->pass) {
adamc@682	296 pthread_mutex_unlock(&c->lock);
adam@1552	297 chastise(send, sock);
adamc@864	298 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	299 return;
adamc@667	300 }
adamc@667	301
adamc@682	302 if (c->sock != -1) {
adamc@863	303 c->close(c->sock);
adamc@682	304 c->sock = -1;
adamc@682	305 }
adamc@667	306
adamc@682	307 c->last_contact = time(NULL);
adamc@682	308
adam@1369	309 if (uw_buffer_used(&c->msgs) > 0) {
adamc@863	310 send(sock, on_success, strlen(on_success));
adamc@863	311 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1369	312 send(sock, c->msgs.start, uw_buffer_used(&c->msgs));
adam@1369	313 uw_buffer_reset(&c->msgs);
adamc@667	314 close(sock);
adamc@667	315 }
adamc@863	316 else {
adamc@682	317 c->sock = sock;
adamc@863	318 c->send = send;
adamc@863	319 c->close = close;
adamc@863	320 }
adamc@667	321
adamc@682	322 pthread_mutex_unlock(&c->lock);
adamc@667	323 }
adamc@667	324
adamc@682	325 static void free_client(client *c) {
adamc@682	326 c->mode = UNUSED;
adamc@682	327 c->pass = -1;
adamc@667	328
adamc@682	329 c->next = clients_free;
adamc@682	330 clients_free = c;
adamc@667	331 }
adamc@667	332
adamc@682	333 static uw_Basis_channel new_channel(client *c) {
adamc@682	334 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	335 return ch;
adamc@668	336 }
adamc@668	337
adam@1447	338 static void client_send(client c, uw_buffer msg, const char *script, int script_len) {
adamc@685	339 pthread_mutex_lock(&c->lock);
adamc@671	340
adamc@682	341 if (c->sock != -1) {
adamc@863	342 c->send(c->sock, on_success, strlen(on_success));
adamc@863	343 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adam@1447	344 if (script_len > 0) {
adam@1447	345 c->send(c->sock, "E\n", 2);
adam@1447	346 c->send(c->sock, script, script_len);
adam@1447	347 c->send(c->sock, "\n", 1);
adam@1447	348 }
adam@1369	349 c->send(c->sock, msg->start, uw_buffer_used(msg));
adamc@863	350 c->close(c->sock);
adamc@682	351 c->sock = -1;
adam@1665	352 } else if (uw_buffer_append(&c->msgs, msg->start, uw_buffer_used(msg)))
adamc@1113	353 fprintf(stderr, "Client message buffer size exceeded");
adamc@671	354
adamc@685	355 pthread_mutex_unlock(&c->lock);
adamc@668	356 }
adamc@668	357
adamc@668	358
adamc@668	359 // Global entry points
adamc@668	360
adamc@1164	361 extern void uw_global_custom();
adamc@1104	362 extern void uw_init_crypto();
adamc@1104	363
adamc@668	364 void uw_global_init() {
adamc@668	365 clients = malloc(0);
adamc@1104	366
adamc@1164	367 uw_global_custom();
adamc@1104	368 uw_init_crypto();
adamc@1094	369 }
adamc@1094	370
adamc@1094	371 void uw_app_init(uw_app *app) {
adamc@1094	372 app->client_init();
adamc@668	373 }
adamc@668	374
adam@1332	375 int uw_time = 0, uw_time_max = 0, uw_min_heap = 0;
adamc@1114	376
adamc@668	377
adamc@667	378 // Single-request state
adamc@667	379
adamc@323	380 typedef struct regions {
adamc@323	381 struct regions *next;
adamc@323	382 } regions;
adamc@323	383
adamc@425	384 typedef struct {
adamc@425	385 void (func)(void);
adamc@425	386 void *arg;
adamc@425	387 } cleanup;
adamc@425	388
adamc@671	389 typedef struct {
adamc@682	390 unsigned client;
adam@1369	391 uw_buffer msgs;
adamc@682	392 } delta;
adamc@671	393
adamc@737	394 typedef enum {
adamc@759	395 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	396 } input_kind;
adamc@737	397
adamc@756	398 typedef struct input {
adamc@737	399 input_kind kind;
adamc@737	400 union {
adamc@737	401 char *normal;
adamc@739	402 uw_Basis_file file;
adamc@756	403 struct {
adamc@759	404 struct input fields, parent;
adamc@756	405 } subform;
adamc@759	406 struct {
adamc@759	407 struct input entries, parent;
adamc@759	408 } subforms;
adamc@759	409 struct {
adamc@759	410 struct input fields, next, *parent;
adamc@759	411 } entry;
adamc@737	412 } data;
adamc@737	413 } input;
adamc@737	414
adamc@771	415 typedef struct {
adamc@771	416 void *data;
adam@1327	417 uw_callback commit, rollback;
adam@1327	418 uw_callback_with_retry free;
adamc@771	419 } transactional;
adamc@771	420
adamc@1061	421 typedef struct {
adamc@1061	422 char *name;
adamc@1061	423 void *data;
adamc@1061	424 void (free)(void);
adamc@1061	425 } global;
adamc@1061	426
adamc@311	427 struct uw_context {
adamc@1094	428 uw_app *app;
adam@1446	429 int id;
adamc@1094	430
adamc@854	431 char (get_header)(void , const char );
adamc@854	432 void *get_header_data;
adamc@457	433
adam@1799	434 char (get_env)(void , const char );
adam@1799	435 void *get_env_data;
adam@1799	436
adam@1369	437 uw_buffer outHeaders, page, heap, script;
adam@1451	438 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	439 input inputs, subinputs, *cur_container;
adamc@1094	440 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	441
adam@1446	442 unsigned long long source_count;
adamc@562	443
adamc@272	444 void *db;
adam@1931	445 int transaction_started;
adamc@272	446
adamc@167	447 jmp_buf jmp_buf;
adamc@167	448
adamc@323	449 regions *regions;
adamc@323	450
adamc@425	451 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	452
adamc@1094	453 const char *script_header;
adamc@643	454
adam@2056	455 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	456
adamc@682	457 size_t n_deltas, used_deltas;
adamc@682	458 delta *deltas;
adamc@671	459
adamc@682	460 client *client;
adamc@682	461
adamc@771	462 transactional *transactionals;
adamc@771	463 size_t n_transactionals, used_transactionals;
adamc@771	464
adamc@1061	465 global *globals;
adamc@1061	466 size_t n_globals;
adamc@1061	467
adamc@1066	468 char *current_url;
adamc@1066	469
adamc@1114	470 int deadline;
adamc@1114	471
adamc@1121	472 void *client_data;
adamc@1121	473
grrwlf@1997	474 uw_loggers *loggers;
adam@1334	475
adam@1386	476 int isPost, hasPostBody;
adam@1347	477 uw_Basis_postBody postBody;
adam@1370	478 uw_Basis_string queryString;
adam@1347	479
adam@1556	480 unsigned nextId;
adam@1556	481
adam@1782	482 int amInitializing;
adam@1782	483
adamc@167	484 char error_message[ERROR_BUF_LEN];
adam@1877	485
adam@1877	486 int usedSig, needsResig;
adam@1949	487
adam@1949	488 char *output_buffer;
adam@1949	489 size_t output_buffer_size;
adam@2073	490
ziv@2204	491 // For caching.
ziv@2262	492 int numRecording;
ziv@2262	493 int recordingOffset;
ziv@2220	494
adam@2073	495 int remoteSock;
adamc@117	496 };
adamc@117	497
adamc@1113	498 size_t uw_headers_max = SIZE_MAX;
adamc@1113	499 size_t uw_page_max = SIZE_MAX;
adamc@1113	500 size_t uw_heap_max = SIZE_MAX;
adamc@1113	501 size_t uw_script_max = SIZE_MAX;
adamc@1113	502
grrwlf@1997	503 uw_context uw_init(int id, uw_loggers *lg) {
adamc@311	504 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	505
adamc@1094	506 ctx->app = NULL;
adam@1446	507 ctx->id = id;
adamc@1094	508
adamc@854	509 ctx->get_header = NULL;
adamc@854	510 ctx->get_header_data = NULL;
adamc@457	511
adam@1799	512 ctx->get_env = NULL;
adam@1799	513 ctx->get_env_data = NULL;
adam@1799	514
adam@1413	515 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	516 ctx->outHeaders.start[0] = 0;
adam@1413	517 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	518 ctx->page.start[0] = 0;
adam@1451	519 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	520 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	521 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	522 ctx->script.start[0] = 0;
adamc@136	523
adamc@1094	524 ctx->inputs = malloc(0);
adamc@759	525 ctx->cur_container = NULL;
adamc@756	526 ctx->subinputs = malloc(0);
adamc@1094	527 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	528
adamc@272	529 ctx->db = NULL;
adam@1931	530 ctx->transaction_started = 0;
adamc@272	531
adamc@323	532 ctx->regions = NULL;
adamc@323	533
adamc@425	534 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	535
adamc@643	536 ctx->script_header = "";
adamc@693	537 ctx->needs_push = 0;
adamc@736	538 ctx->needs_sig = 0;
adam@1936	539 ctx->could_write_db = 1;
adam@2056	540 ctx->at_most_one_query = 0;
adamc@1104	541
adamc@565	542 ctx->source_count = 0;
adamc@562	543
adamc@682	544 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	545 ctx->deltas = malloc(0);
adamc@671	546
adamc@700	547 ctx->client = NULL;
adamc@700	548
adamc@700	549 ctx->error_message[0] = 0;
adamc@700	550
adamc@771	551 ctx->transactionals = malloc(0);
adamc@771	552 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	553
adamc@1061	554 ctx->globals = malloc(0);
adamc@1061	555 ctx->n_globals = 0;
adamc@1061	556
adamc@1066	557 ctx->current_url = "";
adamc@1066	558
adamc@1114	559 ctx->deadline = INT_MAX;
adamc@1114	560
adamc@1121	561 ctx->client_data = uw_init_client_data();
adamc@1121	562
grrwlf@1997	563 ctx->loggers = lg;
adam@1334	564
adam@1386	565 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	566
adam@1370	567 ctx->queryString = NULL;
adam@1370	568
adam@1556	569 ctx->nextId = 0;
adam@1556	570
adam@1782	571 ctx->amInitializing = 0;
adam@1782	572
adam@1877	573 ctx->usedSig = 0;
adam@1877	574 ctx->needsResig = 0;
adam@1877	575
adam@1949	576 ctx->output_buffer = malloc(1);
adam@1949	577 ctx->output_buffer_size = 1;
adam@1949	578
ziv@2262	579 ctx->numRecording = 0;
ziv@2262	580 ctx->recordingOffset = 0;
ziv@2204	581
adam@2073	582 ctx->remoteSock = -1;
adam@2073	583
adamc@117	584 return ctx;
adamc@106	585 }
adamc@106	586
adamc@1113	587 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	588
adamc@1121	589 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	590 return ctx->app;
adamc@1121	591 }
adamc@1121	592
adamc@1113	593 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	594 ctx->app = app;
adamc@1094	595
adamc@1105	596 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	597 if (app->inputs_len > uw_inputs_max)
adamc@1113	598 return 1;
adamc@1113	599
adamc@1094	600 ctx->sz_inputs = app->inputs_len;
adamc@1094	601 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	602 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	603 }
adamc@1134	604
adamc@1134	605 return 0;
adamc@1094	606 }
adamc@1094	607
adamc@1121	608 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	609 uw_copy_client_data(ctx->client_data, data);
adamc@1121	610 }
adamc@1121	611
adamc@311	612 void uw_set_db(uw_context ctx, void *db) {
adamc@272	613 ctx->db = db;
adamc@272	614 }
adamc@272	615
adamc@311	616 void *uw_get_db(uw_context ctx) {
adamc@272	617 return ctx->db;
adamc@272	618 }
adamc@272	619
grrwlf@1997	620
grrwlf@1997	621 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	622 return ctx->loggers;
grrwlf@1997	623 }
grrwlf@1997	624
adamc@311	625 void uw_free(uw_context ctx) {
adamc@671	626 size_t i;
adamc@671	627
adam@1369	628 uw_buffer_free(&ctx->outHeaders);
adam@1369	629 uw_buffer_free(&ctx->script);
adam@1369	630 uw_buffer_free(&ctx->page);
adam@1369	631 uw_buffer_free(&ctx->heap);
adamc@144	632 free(ctx->inputs);
adamc@756	633 free(ctx->subinputs);
adamc@425	634 free(ctx->cleanup);
adamc@771	635 free(ctx->transactionals);
adamc@1121	636 uw_free_client_data(ctx->client_data);
adamc@671	637
adamc@682	638 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	639 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	640 free(ctx->deltas);
adamc@671	641
adamc@1061	642 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	643 if (ctx->globals[i].free)
adamc@1089	644 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	645 free(ctx->globals);
adamc@1061	646
adam@1949	647 free(ctx->output_buffer);
adam@1949	648
adamc@136	649 free(ctx);
adamc@136	650 }
adamc@136	651
adamc@562	652 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	653 uw_buffer_reset(&ctx->outHeaders);
adam@1369	654 uw_buffer_reset(&ctx->script);
adamc@667	655 ctx->script.start[0] = 0;
adam@1369	656 uw_buffer_reset(&ctx->page);
adam@1451	657 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	658 uw_buffer_reset(&ctx->heap);
adamc@323	659 ctx->regions = NULL;
adamc@425	660 ctx->cleanup_front = ctx->cleanup;
adamc@682	661 ctx->used_deltas = 0;
adamc@682	662 ctx->client = NULL;
adamc@759	663 ctx->cur_container = NULL;
adamc@771	664 ctx->used_transactionals = 0;
adamc@1117	665 ctx->script_header = "";
adam@1370	666 ctx->queryString = NULL;
adam@1556	667 ctx->nextId = 0;
adam@1782	668 ctx->amInitializing = 0;
adam@1877	669 ctx->usedSig = 0;
adam@1877	670 ctx->needsResig = 0;
adam@2073	671 ctx->remoteSock = -1;
adamc@167	672 }
adamc@167	673
adamc@562	674 void uw_reset_keep_request(uw_context ctx) {
adamc@562	675 uw_reset_keep_error_message(ctx);
adamc@562	676 ctx->error_message[0] = 0;
adamc@167	677 }
adamc@167	678
adamc@311	679 void uw_reset(uw_context ctx) {
adamc@311	680 uw_reset_keep_request(ctx);
adamc@1105	681 if (ctx->app)
adamc@1105	682 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	683 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	684 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	685 ctx->transaction_started = 0;
adamc@144	686 }
adamc@144	687
adamc@311	688 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	689 int r = setjmp(ctx->jmp_buf);
adamc@272	690
adamc@1105	691 if (r == 0 && ctx->app)
adamc@1094	692 ctx->app->db_init(ctx);
adamc@272	693
adamc@272	694 return r;
adamc@272	695 }
adamc@272	696
adamc@1118	697 void uw_close(uw_context ctx) {
adamc@1118	698 ctx->app->db_close(ctx);
adamc@1118	699 }
adamc@1118	700
adam@1446	701 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	702 return ctx->get_header(ctx->get_header_data, h);
adam@1446	703 }
adam@1446	704
adamc@854	705 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	706 ctx->get_header = get_header;
adamc@854	707 ctx->get_header_data = get_header_data;
adamc@742	708 }
adamc@742	709
adam@1799	710 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	711 ctx->get_env = get_env;
adam@1799	712 ctx->get_env_data = get_env_data;
adam@1799	713 }
adam@1799	714
adamc@801	715 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	716 va_list ap;
adamc@801	717 va_start(ap, fmt);
adamc@801	718
adamc@801	719 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	720 }
adamc@801	721
adamc@1131	722 int uw_has_error(uw_context ctx) {
adamc@1131	723 return ctx->error_message[0] != 0;
adamc@1131	724 }
adamc@1131	725
adamc@311	726 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	727 cleanup *cl;
adamc@425	728
adamc@167	729 va_list ap;
adamc@167	730 va_start(ap, fmt);
adamc@167	731
adamc@167	732 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	733
adamc@425	734 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	735 cl->func(cl->arg);
adamc@425	736
adamc@425	737 ctx->cleanup_front = ctx->cleanup;
adamc@425	738
adamc@190	739 longjmp(ctx->jmp_buf, fk);
adamc@167	740 }
adamc@167	741
adamc@1113	742 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	743
adamc@425	744 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	745 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	746 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	747 if (len == 0)
adamc@425	748 newLen = 1;
adamc@425	749 else
adamc@428	750 newLen = len * 2;
adamc@1113	751
adamc@1134	752 if (newLen > uw_cleanup_max) {
adamc@1113	753 if (len+1 <= uw_cleanup_max)
adamc@1113	754 newLen = uw_cleanup_max;
adamc@1113	755 else
adamc@1113	756 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	757 }
adamc@1113	758
adamc@470	759 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	760 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	761 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	762 }
adamc@425	763
adamc@425	764 ctx->cleanup_front->func = func;
adamc@425	765 ctx->cleanup_front->arg = arg;
adamc@425	766 ++ctx->cleanup_front;
adamc@425	767 }
adamc@425	768
adam@1444	769 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	770
adamc@682	771 void uw_login(uw_context ctx) {
adam@1942	772 char id_s, pass_s;
adam@1942	773
adam@1942	774 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	775 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	776 unsigned id = atoi(id_s);
adam@1942	777 int pass = atoi(pass_s);
adam@1942	778 client *c = find_client(id);
adam@1942	779
adam@1942	780 if (c == NULL)
adam@1942	781 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", uw_Basis_htmlifyString(ctx, id_s), uw_Basis_htmlifyString(ctx, pass_s));
adam@1942	782 else {
adamc@685	783 use_client(c);
adamc@682	784 ctx->client = c;
adam@1942	785
adam@1942	786 if (c->mode != USED)
adam@1942	787 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	788 if (c->pass != pass)
adam@1942	789 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	790 }
adam@1942	791 } else if (ctx->needs_push) {
adam@1942	792 client *c = new_client();
adam@1942	793
adam@1942	794 if (c == NULL)
adam@1942	795 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	796
adam@1942	797 use_client(c);
adam@1942	798 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	799 ctx->client = c;
adamc@682	800 }
adamc@682	801 }
adamc@682	802
adamc@671	803 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	804 int r = setjmp(ctx->jmp_buf);
adamc@671	805
adam@1931	806 if (r == 0)
adam@1931	807 ctx->app->handle(ctx, path);
adam@1931	808
adam@1931	809 return r;
adam@1931	810 }
adam@1931	811
adam@2176	812 static void uw_try_reconnecting(uw_context ctx) {
adam@2176	813 // Hm, error starting transaction.
adam@2176	814 // Maybe the database server died but has since come back up.
adam@2176	815 // Let's try starting from scratch.
adam@2176	816 if (ctx->db) {
adam@2176	817 ctx->app->db_close(ctx);
adam@2176	818 ctx->db = NULL;
adam@2176	819 }
adam@2176	820 ctx->app->db_init(ctx);
adam@2176	821
adam@2176	822 if (!ctx->db)
adam@2176	823 uw_error(ctx, FATAL, "Error reopening database connection");
adam@2176	824 }
adam@2176	825
adam@2177	826 void uw_try_reconnecting_and_restarting(uw_context ctx) {
adam@2177	827 uw_try_reconnecting(ctx);
adam@2178	828 uw_error(ctx, BOUNDED_RETRY, "Restarting transaction after fixing database connection");
adam@2176	829 }
adam@2176	830
adam@1931	831 void uw_ensure_transaction(uw_context ctx) {
adam@2056	832 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@2176	833 if (!ctx->db \|\| ctx->app->db_begin(ctx, ctx->could_write_db)) {
adam@2176	834 uw_try_reconnecting(ctx);
adam@2176	835
adam@2176	836 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adam@2176	837 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@2176	838 }
adam@2176	839
adam@1931	840 ctx->transaction_started = 1;
adam@2178	841 } else if (ctx->at_most_one_query && !ctx->db)
adam@2178	842 uw_try_reconnecting(ctx);
adamc@671	843 }
adamc@671	844
adamc@772	845 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	846 if (ctx->client == NULL)
adamc@682	847 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	848
adamc@682	849 return ctx->client->id;
adamc@682	850 }
adamc@682	851
adamc@425	852 void uw_pop_cleanup(uw_context ctx) {
adamc@425	853 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	854 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	855
adamc@425	856 --ctx->cleanup_front;
adamc@425	857 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	858 }
adamc@425	859
adamc@311	860 char *uw_error_message(uw_context ctx) {
adamc@167	861 return ctx->error_message;
adamc@167	862 }
adamc@167	863
adamc@1115	864 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	865 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	866 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	867 }
adamc@1115	868
adamc@759	869 static input *INP(uw_context ctx) {
adamc@759	870 if (ctx->cur_container == NULL)
adamc@759	871 return ctx->inputs;
adamc@759	872 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	873 return ctx->cur_container->data.subform.fields;
adamc@759	874 else if (ctx->cur_container->kind == ENTRY)
adamc@759	875 return ctx->cur_container->data.entry.fields;
adamc@759	876 else
adamc@760	877 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	878 }
adamc@759	879
adamc@760	880 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	881 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	882 *ptr += new_start - old_start;
adamc@760	883 }
adamc@760	884
adamc@760	885 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	886 switch (x->kind) {
adamc@759	887 case SUBFORM:
adamc@760	888 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	889 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	890 break;
adamc@759	891 case SUBFORMS:
adamc@760	892 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	893 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	894 break;
adamc@759	895 case ENTRY:
adamc@760	896 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	897 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	898 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	899 break;
adamc@1134	900 default:
adamc@1134	901 break;
phurst@1981	902 }
adamc@759	903 }
adamc@759	904
adamc@1113	905 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	906
adamc@759	907 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	908 size_t i;
adamc@759	909 input *r;
adamc@759	910
adamc@759	911 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	912 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	913 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	914
adamc@759	915 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	916
adamc@760	917 if (ctx->subinputs != new_subinputs) {
adamc@760	918 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	919 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	920 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	921 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	922
adamc@760	923 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	924
adamc@760	925 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	926 ctx->subinputs = new_subinputs;
adamc@760	927 }
adamc@759	928 }
adamc@759	929
adamc@759	930 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	931
adamc@759	932 for (i = 0; i < len; ++i)
adam@1474	933 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	934
adamc@759	935 return r;
adamc@759	936 }
adamc@756	937
adamc@801	938 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	939 //printf("Input name %s\n", name);
adamc@1038	940
adamc@756	941 if (!strcasecmp(name, ".b")) {
adamc@1094	942 int n = ctx->app->input_num(value);
adamc@756	943 input *inps;
adamc@756	944
adamc@801	945 if (n < 0) {
adam@1444	946 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	947 return -1;
adamc@801	948 }
adamc@801	949
adamc@1094	950 if (n >= ctx->app->inputs_len) {
adam@1444	951 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	952 return -1;
adamc@801	953 }
adamc@756	954
adamc@1094	955 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	956
adamc@759	957 INP(ctx)[n].kind = SUBFORM;
adamc@759	958 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	959 INP(ctx)[n].data.subform.fields = inps;
adamc@759	960 ctx->cur_container = &INP(ctx)[n];
adamc@756	961 } else if (!strcasecmp(name, ".e")) {
adamc@756	962 input *tmp;
adamc@756	963
adamc@801	964 if (ctx->cur_container == NULL) {
adamc@801	965 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	966 return -1;
adamc@801	967 }
adamc@756	968
adamc@759	969 tmp = ctx->cur_container;
adamc@759	970 switch (tmp->kind) {
adamc@759	971 case SUBFORM:
adamc@759	972 ctx->cur_container = tmp->data.subform.parent;
adamc@759	973 tmp->data.subform.parent = NULL;
adamc@759	974 break;
adamc@759	975 case SUBFORMS:
adamc@759	976 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	977 tmp->data.subforms.parent = NULL;
adamc@759	978 break;
adamc@759	979 case ENTRY:
adamc@759	980 ctx->cur_container = tmp->data.entry.parent;
adamc@759	981 break;
adamc@759	982 default:
adamc@801	983 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	984 return -1;
adamc@759	985 }
adamc@759	986 } else if (!strcasecmp(name, ".s")) {
adamc@1094	987 int n = ctx->app->input_num(value);
adamc@759	988
adamc@801	989 if (n < 0) {
adam@1444	990 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	991 return -1;
adamc@801	992 }
adamc@801	993
adamc@1094	994 if (n >= ctx->app->inputs_len) {
adam@1444	995 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	996 return -1;
adamc@801	997 }
adamc@759	998
adamc@759	999 INP(ctx)[n].kind = SUBFORMS;
adamc@759	1000 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1001 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	1002 ctx->cur_container = &INP(ctx)[n];
adamc@759	1003 } else if (!strcasecmp(name, ".i")) {
adamc@759	1004 input *inps;
adamc@759	1005
adamc@801	1006 if (!ctx->cur_container) {
adamc@801	1007 uw_set_error(ctx, "New entry without container");
adamc@801	1008 return -1;
adamc@801	1009 }
adamc@801	1010
adamc@801	1011 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	1012 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	1013 return -1;
adamc@801	1014 }
adamc@759	1015
adamc@1094	1016 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	1017
adamc@759	1018 inps->kind = ENTRY;
adamc@759	1019 inps->data.entry.parent = ctx->cur_container;
adamc@759	1020 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	1021 ctx->cur_container->data.subforms.entries = inps;
adamc@759	1022
adamc@759	1023 inps->data.entry.fields = inps+1;
adamc@759	1024 ctx->cur_container = inps;
adamc@756	1025 } else {
adamc@1094	1026 int n = ctx->app->input_num(name);
adamc@756	1027
adam@1384	1028 if (n < 0)
adam@1384	1029 return 0;
adamc@801	1030
adamc@1094	1031 if (n >= ctx->app->inputs_len) {
adam@1444	1032 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1033 return -1;
adamc@801	1034 }
adamc@756	1035
adamc@756	1036 INP(ctx)[n].kind = NORMAL;
adamc@756	1037 INP(ctx)[n].data.normal = value;
adamc@756	1038 }
adamc@801	1039
adamc@801	1040 return 0;
adamc@144	1041 }
adamc@144	1042
adamc@311	1043 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1044 if (n < 0)
adamc@311	1045 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1046 if (n >= ctx->app->inputs_len)
adamc@311	1047 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1048
adamc@756	1049 switch (INP(ctx)[n].kind) {
adamc@737	1050 case UNSET:
adamc@737	1051 return NULL;
adamc@739	1052 case FIL:
adamc@739	1053 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1054 case SUBFORM:
adamc@756	1055 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1056 case SUBFORMS:
adamc@759	1057 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1058 case ENTRY:
adamc@759	1059 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1060 case NORMAL:
adamc@756	1061 return INP(ctx)[n].data.normal;
adamc@737	1062 default:
adamc@737	1063 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1064 }
adamc@138	1065 }
adamc@138	1066
adamc@311	1067 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1068 if (n < 0)
adamc@311	1069 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1070 if (n >= ctx->app->inputs_len)
adamc@311	1071 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1072
adamc@756	1073 switch (INP(ctx)[n].kind) {
adamc@737	1074 case UNSET:
adamc@737	1075 return "";
adamc@739	1076 case FIL:
adamc@739	1077 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1078 case SUBFORM:
adamc@756	1079 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1080 case SUBFORMS:
adamc@759	1081 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1082 case ENTRY:
adamc@759	1083 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1084 case NORMAL:
adamc@756	1085 return INP(ctx)[n].data.normal;
adamc@737	1086 default:
adamc@737	1087 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1088 }
adamc@737	1089 }
adamc@737	1090
adamc@801	1091 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1092 int n = ctx->app->input_num(name);
adamc@737	1093
adamc@801	1094 if (n < 0) {
adam@2054	1095 uw_set_error(ctx, "Bad file input name");
adamc@801	1096 return -1;
adamc@801	1097 }
adamc@801	1098
adamc@1094	1099 if (n >= ctx->app->inputs_len) {
adam@2054	1100 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1101 return -1;
adamc@801	1102 }
adamc@737	1103
adamc@739	1104 ctx->inputs[n].kind = FIL;
adamc@739	1105 ctx->inputs[n].data.file = f;
adamc@801	1106
adamc@801	1107 return 0;
adamc@737	1108 }
adamc@737	1109
adamc@739	1110 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1111
adamc@739	1112 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1113 if (n < 0)
adamc@737	1114 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1115 if (n >= ctx->app->inputs_len)
adamc@737	1116 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1117
adamc@756	1118 switch (INP(ctx)[n].kind) {
adamc@737	1119 case UNSET:
adamc@737	1120 {
adamc@739	1121 char *data = uw_malloc(ctx, 0);
adamc@740	1122 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1123 return f;
adamc@737	1124 }
adamc@739	1125 case FIL:
adamc@756	1126 return INP(ctx)[n].data.file;
adamc@737	1127 case NORMAL:
adamc@737	1128 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1129 case SUBFORM:
adamc@756	1130 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1131 case SUBFORMS:
adamc@759	1132 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1133 case ENTRY:
adamc@759	1134 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1135 default:
adamc@737	1136 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1137 }
adamc@190	1138 }
adamc@190	1139
adamc@756	1140 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1141 if (n < 0)
adamc@756	1142 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1143 if (n >= ctx->app->inputs_len)
adamc@756	1144 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1145
adamc@756	1146 switch (INP(ctx)[n].kind) {
adamc@756	1147 case UNSET:
adamc@756	1148 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1149 case FIL:
adamc@756	1150 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1151 case NORMAL:
adamc@756	1152 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1153 case SUBFORMS:
adamc@759	1154 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1155 case ENTRY:
adamc@759	1156 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1157 case SUBFORM:
adamc@759	1158 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1159 ctx->cur_container = &INP(ctx)[n];
adamc@756	1160 return;
adamc@756	1161 default:
adamc@756	1162 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1163 }
adamc@756	1164 }
adamc@756	1165
adamc@756	1166 void uw_leave_subform(uw_context ctx) {
adamc@756	1167 input *tmp;
adamc@756	1168
adamc@759	1169 if (ctx->cur_container == NULL)
adamc@756	1170 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1171
adamc@759	1172 tmp = ctx->cur_container;
adamc@759	1173 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1174 tmp->data.subform.parent = NULL;
adamc@759	1175 }
adamc@759	1176
adamc@759	1177 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1178 input *inps;
adamc@759	1179
adamc@759	1180 if (n < 0)
adamc@759	1181 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1182 if (n >= ctx->app->inputs_len)
adamc@759	1183 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1184
adamc@759	1185 switch (INP(ctx)[n].kind) {
adamc@759	1186 case UNSET:
adamc@759	1187 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1188 case FIL:
adamc@759	1189 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1190 case NORMAL:
adamc@759	1191 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1192 case SUBFORM:
adamc@759	1193 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1194 case ENTRY:
adamc@759	1195 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1196 case SUBFORMS:
adamc@759	1197 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1198 if (inps) {
adamc@759	1199 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1200 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1201 return 1;
adamc@759	1202 } else
adamc@759	1203 return 0;
adamc@759	1204 default:
adamc@759	1205 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1206 }
adamc@759	1207 }
adamc@759	1208
adamc@759	1209 int uw_next_entry(uw_context ctx) {
adamc@759	1210 if (ctx->cur_container == NULL)
adamc@759	1211 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1212
adamc@759	1213 switch (ctx->cur_container->kind) {
adamc@759	1214 case UNSET:
adamc@759	1215 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1216 case FIL:
adamc@759	1217 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1218 case NORMAL:
adamc@759	1219 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1220 case SUBFORM:
adamc@759	1221 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1222 case SUBFORMS:
adamc@759	1223 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1224 case ENTRY:
adamc@759	1225 if (ctx->cur_container->data.entry.next) {
adamc@759	1226 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1227 return 1;
adamc@759	1228 } else {
adamc@759	1229 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1230 return 0;
adamc@759	1231 }
adamc@759	1232 default:
adamc@759	1233 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1234 }
adamc@756	1235 }
adamc@756	1236
adamc@643	1237 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1238 ctx->script_header = s;
adamc@643	1239 }
adamc@643	1240
adamc@1094	1241 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1242 return ctx->app->url_prefix;
adamc@667	1243 }
adamc@667	1244
adamc@693	1245 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1246 ctx->needs_push = n;
adamc@693	1247 }
adamc@693	1248
adamc@736	1249 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1250 ctx->needs_sig = n;
adamc@736	1251 }
adamc@736	1252
adam@1936	1253 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1254 ctx->could_write_db = n;
adam@1936	1255 }
adam@1936	1256
adam@2056	1257 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1258 ctx->at_most_one_query = n;
adam@2056	1259 }
adam@2056	1260
adamc@667	1261
adam@1369	1262 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1263 if (b->back - b->front < extra) {
adamc@666	1264 size_t desired = b->front - b->start + extra, next;
adamc@136	1265 char *new_heap;
adamc@136	1266
adamc@666	1267 next = b->back - b->start;
adamc@317	1268 if (next == 0)
adamc@317	1269 next = 1;
adamc@317	1270 for (; next < desired; next *= 2);
adamc@136	1271
adamc@1134	1272 if (next > b->max) {
adamc@1113	1273 if (desired <= b->max)
adamc@1113	1274 next = desired;
adamc@1113	1275 else
adamc@1113	1276 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1277 }
adamc@1113	1278
adamc@666	1279 new_heap = realloc(b->start, next);
adamc@666	1280 b->front = new_heap + (b->front - b->start);
adamc@666	1281 b->back = new_heap + next;
adamc@136	1282
adamc@667	1283 if (new_heap != b->start) {
adamc@666	1284 b->start = new_heap;
adam@1389	1285 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1286 }
adamc@136	1287
adamc@666	1288 b->start = new_heap;
adamc@136	1289 }
adamc@136	1290 }
adamc@136	1291
adamc@832	1292 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1293 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1294 }
adamc@666	1295
adamc@832	1296 char *uw_heap_front(uw_context ctx) {
adamc@832	1297 return ctx->heap.front;
adamc@832	1298 }
adamc@832	1299
adamc@832	1300 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1301 ctx->heap.front = fr;
adamc@832	1302 }
adamc@832	1303
adam@1782	1304 void uw_begin_initializing(uw_context ctx) {
adam@1782	1305 ctx->amInitializing = 1;
adam@1782	1306 }
adam@1782	1307
adam@1782	1308 void uw_end_initializing(uw_context ctx) {
adam@1782	1309 ctx->amInitializing = 0;
adam@1782	1310 }
adam@1782	1311
adam@2013	1312 static void align_heap(uw_context ctx) {
adam@2013	1313 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1314
adam@2017	1315 if (posn % sizeof(void *) != 0) {
adam@2017	1316 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1317 uw_check_heap(ctx, bump);
adam@2013	1318 ctx->heap.front += bump;
adam@2013	1319 }
adam@2013	1320 }
adam@2013	1321
adamc@311	1322 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1323 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1324 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1325 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1326 // return.
adam@2013	1327
adamc@136	1328 void *result;
adamc@136	1329
adam@1782	1330 if (ctx->amInitializing) {
adam@2017	1331 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1332
adam@2013	1333 if (!error)
adam@1782	1334 return result;
adam@1782	1335 else
adam@2013	1336 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1337 } else {
adam@2013	1338 align_heap(ctx);
adam@2013	1339
adam@1782	1340 uw_check_heap(ctx, len);
adam@1782	1341
adam@1782	1342 result = ctx->heap.front;
adam@1782	1343 ctx->heap.front += len;
adam@1782	1344 return result;
adam@1782	1345 }
adamc@117	1346 }
adamc@117	1347
adamc@323	1348 void uw_begin_region(uw_context ctx) {
adam@2013	1349 align_heap(ctx);
adam@2013	1350
adamc@666	1351 regions r = (regions ) ctx->heap.front;
adamc@323	1352
adamc@323	1353 uw_check_heap(ctx, sizeof(regions));
adamc@323	1354
adamc@666	1355 ctx->heap.front += sizeof(regions);
adamc@323	1356
adamc@323	1357 r->next = ctx->regions;
adamc@323	1358 ctx->regions = r;
adamc@323	1359 }
adamc@323	1360
adamc@323	1361 void uw_end_region(uw_context ctx) {
adamc@323	1362 regions *r = ctx->regions;
adamc@323	1363
adamc@323	1364 if (r == NULL)
adamc@323	1365 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1366
adamc@666	1367 ctx->heap.front = (char *) r;
adamc@323	1368 ctx->regions = r->next;
adamc@323	1369 }
adamc@323	1370
adamc@324	1371 void uw_memstats(uw_context ctx) {
adam@1369	1372 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1373 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1374 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1375 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1376 }
adamc@324	1377
adam@1915	1378 int uw_pagelen(uw_context ctx) {
adam@1915	1379 return ctx->page.front - ctx->page.start;
adam@1915	1380 }
adam@1915	1381
adamc@311	1382 int uw_send(uw_context ctx, int sock) {
adam@1949	1383 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1384
adam@1949	1385 if (ctx->output_buffer_size < target_length) {
adam@1949	1386 do {
adam@1949	1387 ctx->output_buffer_size *= 2;
adam@1949	1388 } while (ctx->output_buffer_size < target_length);
adam@1949	1389 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1390 }
adam@1949	1391
adam@1949	1392 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1393 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1394 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1395
adam@1949	1396 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1397 }
adamc@462	1398
adamc@856	1399 int uw_print(uw_context ctx, int fd) {
adamc@856	1400 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1401
adamc@856	1402 if (n < 0)
adamc@856	1403 return n;
adamc@856	1404
adamc@856	1405 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1406
adamc@856	1407 if (n < 0)
adamc@856	1408 return n;
adamc@856	1409
adamc@856	1410 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1411 }
adamc@856	1412
adamc@860	1413 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1414 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1415
adamc@860	1416 if (n < 0)
adamc@860	1417 return n;
adamc@860	1418
adamc@860	1419 n = output(data, "\r\n", 2);
adamc@860	1420
adamc@860	1421 if (n < 0)
adamc@860	1422 return n;
adamc@860	1423
adamc@860	1424 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1425 }
adamc@860	1426
adamc@462	1427 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1428 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1429 }
adamc@462	1430
adamc@462	1431 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1432 int len = strlen(s);
adamc@462	1433
adamc@462	1434 uw_check_headers(ctx, len + 1);
adamc@666	1435 strcpy(ctx->outHeaders.front, s);
adamc@666	1436 ctx->outHeaders.front += len;
adamc@562	1437 }
adamc@562	1438
adam@1934	1439 int uw_has_contentLength(uw_context ctx) {
adam@1934	1440 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1441 }
adam@1934	1442
adamc@1110	1443 void uw_clear_headers(uw_context ctx) {
adam@1369	1444 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1445 }
adamc@1110	1446
adam@1932	1447 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1448 uw_buffer_reset(&ctx->page);
adam@1932	1449 }
adam@1932	1450
adamc@562	1451 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1452 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1453 }
adamc@562	1454
adamc@562	1455 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1456 int len = strlen(s);
adamc@562	1457
adamc@562	1458 uw_check_script(ctx, len + 1);
adamc@666	1459 strcpy(ctx->script.front, s);
adamc@666	1460 ctx->script.front += len;
adamc@562	1461 }
adamc@562	1462
adam@1446	1463 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1464 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1465 uw_write_script(ctx, "sig=\"");
adam@1671	1466 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1467 uw_write_script(ctx, "\";");
adam@1671	1468 }
adam@1671	1469
adam@1446	1470 return ctx->script.start;
adam@1446	1471 }
adam@1446	1472
adamc@695	1473 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1474 if (s[0] == 0)
adamc@695	1475 return "";
adamc@695	1476 else {
adamc@695	1477 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1478 sprintf(r, " onload='%s'", s);
adamc@695	1479 return r;
adamc@695	1480 }
adamc@695	1481 }
adamc@695	1482
adamc@1042	1483 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1484 if (ctx->script_header[0] == 0)
adamc@1042	1485 return "";
adamc@1042	1486 else {
vshabanoff@1763	1487 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1488 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1489 return r;
adamc@1042	1490 }
adamc@1042	1491 }
adamc@1042	1492
adamc@694	1493 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1494 if (ctx->client == NULL) {
adamc@736	1495 if (ctx->needs_sig) {
adamc@1094	1496 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1497 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1498 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1499 return r;
adamc@736	1500 }
adamc@736	1501 else
adamc@736	1502 return "";
adamc@736	1503 } else {
adamc@1094	1504 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1505 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1506 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1507 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1508 (ctx->isPost ? "true" : "false"),
adamc@682	1509 ctx->client->id,
adamc@682	1510 ctx->client->pass,
adamc@1094	1511 ctx->app->url_prefix,
adamc@1094	1512 ctx->app->timeout,
adamc@736	1513 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1514 sig,
adamc@736	1515 ctx->needs_sig ? "\";" : "");
adamc@679	1516 return r;
adamc@668	1517 }
adamc@667	1518 }
adamc@667	1519
adamc@574	1520 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1521 char r, s2;
adamc@574	1522
adam@1446	1523 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1524
adamc@666	1525 r = s2 = ctx->heap.front;
adamc@574	1526 *s2++ = '"';
adamc@574	1527
adamc@574	1528 for (; *s; s++) {
adam@1286	1529 unsigned char c = *s;
adamc@574	1530
adamc@574	1531 switch (c) {
adamc@574	1532 case '"':
adamc@574	1533 strcpy(s2, "\\\"");
adamc@574	1534 s2 += 2;
adamc@574	1535 break;
adamc@1027	1536 case '\'':
adamc@1027	1537 strcpy(s2, "\\047");
adamc@1027	1538 s2 += 4;
adamc@1027	1539 break;
adamc@574	1540 case '\\':
adamc@574	1541 strcpy(s2, "\\\\");
adamc@574	1542 s2 += 2;
adamc@574	1543 break;
adam@1457	1544 case '<':
adam@1457	1545 strcpy(s2, "\\074");
adam@1457	1546 s2 += 4;
adam@1457	1547 break;
adamc@574	1548 default:
adam@1286	1549 if (isprint((int)c) \|\| c >= 128)
adamc@574	1550 *s2++ = c;
adamc@574	1551 else {
adam@1429	1552 sprintf(s2, "\\%03o", c);
adamc@574	1553 s2 += 4;
adamc@574	1554 }
adamc@574	1555 }
adamc@574	1556 }
adamc@574	1557
adamc@574	1558 strcpy(s2, "\"");
adamc@910	1559 ctx->heap.front = s2 + 2;
adamc@574	1560 return r;
adamc@574	1561 }
adamc@574	1562
adam@1286	1563 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1564 unsigned char c = c1;
adamc@1025	1565 char r, s2;
adamc@1025	1566
adam@1446	1567 uw_check_heap(ctx, 7);
adamc@1025	1568
adamc@1025	1569 r = s2 = ctx->heap.front;
adamc@1025	1570 *s2++ = '"';
adamc@1025	1571
adamc@1025	1572 switch (c) {
adamc@1025	1573 case '"':
adamc@1025	1574 strcpy(s2, "\\\"");
adamc@1025	1575 s2 += 2;
adamc@1025	1576 break;
adamc@1027	1577 case '\'':
adamc@1027	1578 strcpy(s2, "\\047");
adamc@1027	1579 s2 += 4;
adamc@1027	1580 break;
adamc@1025	1581 case '\\':
adamc@1025	1582 strcpy(s2, "\\\\");
adamc@1025	1583 s2 += 2;
adamc@1025	1584 break;
adam@1457	1585 case '<':
adam@1457	1586 strcpy(s2, "\\074");
adam@1457	1587 s2 += 4;
adam@1457	1588 break;
adamc@1025	1589 default:
adam@1286	1590 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1591 *s2++ = c;
adamc@1025	1592 else {
adam@1429	1593 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1594 s2 += 4;
adamc@1025	1595 }
adamc@1025	1596 }
adamc@1025	1597
adamc@1025	1598 strcpy(s2, "\"");
adamc@1025	1599 ctx->heap.front = s2 + 2;
adamc@1025	1600 return r;
adamc@1025	1601 }
adamc@1025	1602
adamc@574	1603 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1604 char r, s2;
adamc@574	1605
adam@1446	1606 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1607
adamc@666	1608 r = s2 = ctx->script.front;
adamc@574	1609 *s2++ = '"';
adamc@574	1610
adamc@574	1611 for (; *s; s++) {
adam@1286	1612 unsigned char c = *s;
adamc@574	1613
adamc@574	1614 switch (c) {
adamc@577	1615 case '\'':
adamc@1027	1616 strcpy(s2, "\\");
adamc@574	1617 s2 += 2;
adamc@574	1618 break;
adamc@574	1619 case '\\':
adamc@574	1620 strcpy(s2, "\\\\");
adamc@574	1621 s2 += 2;
adamc@574	1622 break;
adam@1457	1623 case '<':
adam@1457	1624 strcpy(s2, "\\074");
adam@1457	1625 s2 += 4;
adam@1457	1626 break;
adamc@574	1627 default:
adam@1286	1628 if (isprint((int)c) \|\| c >= 128)
adamc@574	1629 *s2++ = c;
adamc@574	1630 else {
adam@1429	1631 sprintf(s2, "\\%03o", c);
adamc@574	1632 s2 += 4;
adamc@574	1633 }
adamc@574	1634 }
adamc@574	1635 }
adamc@574	1636
adamc@574	1637 strcpy(s2, "\"");
adamc@666	1638 ctx->script.front = s2 + 1;
adamc@574	1639 return r;
adamc@574	1640 }
adamc@574	1641
adamc@682	1642 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1643 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1644 return "null";
adamc@682	1645 else {
adamc@682	1646 int len;
adamc@682	1647 char *r;
adamc@682	1648
adamc@682	1649 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1650 r = ctx->heap.front;
adamc@682	1651 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1652 ctx->heap.front += len+1;
adamc@682	1653 return r;
adamc@682	1654 }
adamc@682	1655 }
adamc@682	1656
adam@1446	1657 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1658 int len;
adamc@577	1659 size_t s_len = strlen(s);
adamc@562	1660
grrwlf@1998	1661 if(ctx->id < 0)
grrwlf@1998	1662 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1663
adam@1446	1664 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1665 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1666 ctx->script.front += len;
adamc@666	1667 strcpy(ctx->script.front, s);
adamc@666	1668 ctx->script.front += s_len;
adamc@970	1669 strcpy(ctx->script.front, "));");
adamc@972	1670 ctx->script.front += 3;
adamc@562	1671
adam@1446	1672 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1673 return r;
adam@1446	1674 }
adam@1446	1675
adam@1446	1676 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1677 int len;
adamc@577	1678 size_t s_len = strlen(s);
adamc@577	1679
adam@1446	1680 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1681 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1682 ctx->script.front += len;
adamc@666	1683 strcpy(ctx->script.front, s);
adamc@666	1684 ctx->script.front += s_len;
adamc@970	1685 strcpy(ctx->script.front, "));");
adamc@972	1686 ctx->script.front += 3;
adamc@577	1687
adamc@577	1688 return uw_unit_v;
adamc@577	1689 }
adamc@577	1690
adamc@311	1691 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1692 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1693 }
adamc@117	1694
adamc@311	1695 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1696 *(ctx->page.front)++ = c;
adam@1413	1697 *ctx->page.front = 0;
adamc@117	1698 }
adamc@117	1699
adamc@311	1700 void uw_writec(uw_context ctx, char c) {
adam@1413	1701 uw_check(ctx, 2);
adamc@311	1702 uw_writec_unsafe(ctx, c);
adamc@117	1703 }
adamc@117	1704
adam@2085	1705 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1706 uw_writec(ctx, c);
adam@2085	1707 }
adam@2085	1708
adamc@311	1709 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1710 int len = strlen(s);
adamc@666	1711 memcpy(ctx->page.front, s, len);
adamc@666	1712 ctx->page.front += len;
adamc@117	1713 }
adamc@117	1714
adamc@311	1715 void uw_write(uw_context ctx, const char* s) {
adamc@311	1716 uw_check(ctx, strlen(s) + 1);
adamc@311	1717 uw_write_unsafe(ctx, s);
adamc@666	1718 *ctx->page.front = 0;
adamc@102	1719 }
adamc@106	1720
ziv@2204	1721 void uw_recordingStart(uw_context ctx) {
ziv@2262	1722 if (ctx->numRecording++ == 0) {
ziv@2262	1723 ctx->recordingOffset = ctx->page.front - ctx->page.start;
ziv@2262	1724 }
ziv@2204	1725 }
ziv@2204	1726
ziv@2204	1727 char *uw_recordingRead(uw_context ctx) {
ziv@2262	1728 // Only the outermost recorder can read unless the recording is empty.
ziv@2262	1729 char *recording = ctx->page.start + ctx->recordingOffset;
ziv@2262	1730 if (--ctx->numRecording > 0 && recording != ctx->page.front) {
ziv@2262	1731 return NULL;
ziv@2262	1732 }
ziv@2262	1733 return strdup(recording);
ziv@2204	1734 }
ziv@2204	1735
adamc@311	1736 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1737 char *result;
adamc@136	1738 int len;
adamc@311	1739 uw_check_heap(ctx, INTS_MAX);
adamc@666	1740 result = ctx->heap.front;
adamc@276	1741 sprintf(result, "%lld%n", n, &len);
adamc@666	1742 ctx->heap.front += len+1;
adamc@136	1743 return result;
adamc@106	1744 }
adamc@106	1745
adamc@311	1746 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1747 char *result;
adamc@136	1748 int len;
adamc@311	1749 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1750 result = ctx->heap.front;
adam@1920	1751 sprintf(result, "%.16g%n", n, &len);
adamc@666	1752 ctx->heap.front += len+1;
adamc@136	1753 return result;
adamc@106	1754 }
adamc@106	1755
adamc@311	1756 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1757 int len = strlen(s);
adamc@136	1758 char result, p;
adamc@311	1759 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1760
adamc@666	1761 result = p = ctx->heap.front;
adamc@136	1762
adamc@136	1763 for (; *s; s++) {
adamc@1054	1764 unsigned char c = *s;
adamc@136	1765
adamc@136	1766 if (c == '"') {
adamc@136	1767 strcpy(p, """);
adamc@136	1768 p += 6;
adamc@136	1769 } else if (c == '&') {
adamc@136	1770 strcpy(p, "&");
adamc@136	1771 p += 5;
adamc@136	1772 }
adamc@1059	1773 else
adamc@136	1774 *p++ = c;
adamc@136	1775 }
adamc@136	1776
adamc@137	1777 *p++ = 0;
adamc@666	1778 ctx->heap.front = p;
adamc@136	1779 return result;
adamc@106	1780 }
adamc@106	1781
adamc@1011	1782 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1783 char result, p;
adamc@1011	1784 uw_check_heap(ctx, 7);
adamc@1011	1785
adamc@1011	1786 result = p = ctx->heap.front;
adamc@1011	1787
adamc@1011	1788 if (c == '"') {
adamc@1011	1789 strcpy(p, """);
adamc@1011	1790 p += 6;
adamc@1011	1791 } else if (c == '&') {
adamc@1011	1792 strcpy(p, "&");
adamc@1011	1793 p += 5;
adamc@1011	1794 }
adamc@1059	1795 else
adamc@1011	1796 *p++ = c;
adamc@1011	1797
adamc@1011	1798 *p++ = 0;
adamc@1011	1799 ctx->heap.front = p;
adamc@1011	1800 return result;
adamc@1011	1801 }
adamc@1011	1802
adamc@721	1803 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1804 return s;
adamc@721	1805 }
adamc@721	1806
adamc@311	1807 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1808 int len;
adamc@117	1809
adamc@666	1810 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1811 ctx->page.front += len;
adamc@106	1812 }
adamc@106	1813
adamc@428	1814 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1815 uw_check(ctx, INTS_MAX);
adamc@311	1816 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1817
adamc@428	1818 return uw_unit_v;
adamc@106	1819 }
adamc@106	1820
adamc@428	1821 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1822 int len;
adamc@117	1823
adamc@311	1824 uw_check(ctx, FLOATS_MAX);
adamc@666	1825 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1826 ctx->page.front += len;
adamc@428	1827
adamc@428	1828 return uw_unit_v;
adamc@117	1829 }
adamc@117	1830
adamc@428	1831 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1832 uw_check(ctx, strlen(s) * 6);
adamc@117	1833
adamc@106	1834 for (; *s; s++) {
adamc@1054	1835 unsigned char c = *s;
adamc@106	1836
adamc@106	1837 if (c == '"')
adamc@311	1838 uw_write_unsafe(ctx, """);
adamc@136	1839 else if (c == '&')
adamc@311	1840 uw_write_unsafe(ctx, "&");
adamc@1059	1841 else
adamc@311	1842 uw_writec_unsafe(ctx, c);
adamc@106	1843 }
adamc@428	1844
adamc@428	1845 return uw_unit_v;
adamc@106	1846 }
adamc@120	1847
adamc@1011	1848 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1849 uw_check(ctx, 6);
adamc@1011	1850
adamc@1011	1851 if (c == '"')
adamc@1011	1852 uw_write_unsafe(ctx, """);
adamc@1011	1853 else if (c == '&')
adamc@1011	1854 uw_write_unsafe(ctx, "&");
adamc@1059	1855 else
adamc@1011	1856 uw_writec_unsafe(ctx, c);
adamc@1011	1857
adamc@1011	1858 return uw_unit_v;
adamc@1011	1859 }
adamc@1011	1860
adamc@120	1861
adamc@311	1862 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1863 int len;
adamc@137	1864 char *r;
adamc@137	1865
adamc@311	1866 uw_check_heap(ctx, INTS_MAX);
adamc@666	1867 r = ctx->heap.front;
adamc@276	1868 sprintf(r, "%lld%n", n, &len);
adamc@666	1869 ctx->heap.front += len+1;
adamc@137	1870 return r;
adamc@120	1871 }
adamc@120	1872
adamc@682	1873 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1874 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1875 return "";
adamc@682	1876 else {
adamc@682	1877 int len;
adamc@682	1878 char *r;
adamc@679	1879
adamc@682	1880 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1881 r = ctx->heap.front;
adamc@682	1882 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1883 ctx->heap.front += len+1;
adamc@682	1884 return r;
adamc@682	1885 }
adamc@679	1886 }
adamc@679	1887
adamc@311	1888 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1889 int len;
adamc@137	1890 char *r;
adamc@137	1891
adamc@311	1892 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1893 r = ctx->heap.front;
adamc@137	1894 sprintf(r, "%g%n", n, &len);
adamc@666	1895 ctx->heap.front += len+1;
adamc@137	1896 return r;
adamc@120	1897 }
adamc@120	1898
adamc@311	1899 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1900 char r, p;
adamc@137	1901
adamc@925	1902 if (s[0] == '\0')
adamc@925	1903 return "_";
adamc@925	1904
adamc@925	1905 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1906
adamc@925	1907 r = p = ctx->heap.front;
adamc@925	1908 if (s[0] == '_')
adamc@925	1909 *p++ = '_';
adamc@925	1910
adamc@925	1911 for (; *s; s++) {
adamc@1087	1912 unsigned char c = *s;
adamc@137	1913
adamc@137	1914 if (c == ' ')
adamc@137	1915 *p++ = '+';
adamc@137	1916 else if (isalnum(c))
adamc@137	1917 *p++ = c;
adamc@137	1918 else {
adamc@1259	1919 sprintf(p, ".%02X", c);
adamc@137	1920 p += 3;
adamc@137	1921 }
adamc@137	1922 }
adamc@137	1923
adamc@137	1924 *p++ = 0;
adamc@666	1925 ctx->heap.front = p;
adamc@137	1926 return r;
adamc@120	1927 }
adamc@120	1928
adamc@311	1929 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1930 if (b == uw_Basis_False)
adamc@186	1931 return "0";
adamc@186	1932 else
adamc@186	1933 return "1";
adamc@186	1934 }
adamc@186	1935
adam@1620	1936 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1937 char *r;
adam@1620	1938 int len;
adam@1620	1939 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1940 r = ctx->heap.front;
adam@1620	1941 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1942 ctx->heap.front += len+1;
adam@1620	1943 return r;
adam@1620	1944 }
adam@1620	1945
adamc@311	1946 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1947 int len;
adamc@120	1948
adamc@666	1949 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1950 ctx->page.front += len;
adamc@120	1951 }
adamc@120	1952
adamc@428	1953 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1954 uw_check(ctx, INTS_MAX);
adamc@311	1955 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1956
adamc@428	1957 return uw_unit_v;
adamc@120	1958 }
adamc@120	1959
adamc@682	1960 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1961 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1962 int len;
phurst@1981	1963
adamc@682	1964 uw_check(ctx, INTS_MAX + 1);
adamc@682	1965 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1966 ctx->page.front += len;
adamc@682	1967 }
phurst@1981	1968
adamc@679	1969 return uw_unit_v;
adamc@679	1970 }
adamc@679	1971
adamc@428	1972 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1973 int len;
adamc@120	1974
adamc@311	1975 uw_check(ctx, FLOATS_MAX);
adamc@666	1976 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1977 ctx->page.front += len;
adamc@428	1978
adamc@428	1979 return uw_unit_v;
adamc@120	1980 }
adamc@120	1981
adamc@488	1982 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1983 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1984 }
adamc@488	1985
adam@1404	1986 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1987 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1988 }
adam@1404	1989
adamc@428	1990 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1991 if (s[0] == '\0') {
adamc@925	1992 uw_check(ctx, 1);
adamc@925	1993 uw_writec_unsafe(ctx, '_');
adamc@925	1994 return uw_unit_v;
adamc@925	1995 }
adamc@925	1996
adamc@925	1997 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1998
adamc@925	1999 if (s[0] == '_')
adamc@925	2000 uw_writec_unsafe(ctx, '_');
adamc@120	2001
adamc@120	2002 for (; *s; s++) {
adamc@1087	2003 unsigned char c = *s;
adamc@120	2004
adamc@120	2005 if (c == ' ')
adamc@311	2006 uw_writec_unsafe(ctx, '+');
adamc@120	2007 else if (isalnum(c))
adamc@311	2008 uw_writec_unsafe(ctx, c);
adamc@120	2009 else {
adamc@1259	2010 sprintf(ctx->page.front, ".%02X", c);
adamc@666	2011 ctx->page.front += 3;
adamc@120	2012 }
adamc@120	2013 }
adamc@428	2014
adamc@428	2015 return uw_unit_v;
adamc@120	2016 }
adamc@120	2017
adamc@428	2018 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2019 if (b == uw_Basis_False)
adamc@311	2020 uw_writec(ctx, '0');
adamc@186	2021 else
adamc@311	2022 uw_writec(ctx, '1');
adamc@428	2023
adamc@428	2024 return uw_unit_v;
adamc@186	2025 }
adamc@186	2026
adam@1620	2027 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	2028 int len;
phurst@1981	2029
adam@1620	2030 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	2031 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	2032 ctx->page.front += len;
phurst@1981	2033
adam@1620	2034 return uw_unit_v;
adam@1620	2035 }
adam@1620	2036
adamc@120	2037
adamc@311	2038 static char uw_unurlify_advance(char s) {
adamc@144	2039 char *new_s = strchr(s, '/');
adamc@120	2040
adamc@120	2041 if (new_s)
adamc@120	2042 *new_s++ = 0;
adamc@120	2043 else
adamc@144	2044 new_s = strchr(s, 0);
adamc@144	2045
adamc@144	2046 return new_s;
adamc@144	2047 }
adamc@144	2048
adamc@311	2049 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2050 char new_s = uw_unurlify_advance(s);
adamc@311	2051 uw_Basis_int r;
adamc@120	2052
adamc@276	2053 r = atoll(*s);
adamc@120	2054 *s = new_s;
adamc@120	2055 return r;
adamc@120	2056 }
adamc@120	2057
adamc@311	2058 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2059 char new_s = uw_unurlify_advance(s);
adamc@311	2060 uw_Basis_float r;
adamc@120	2061
adamc@120	2062 r = atof(*s);
adamc@120	2063 *s = new_s;
adamc@120	2064 return r;
adamc@120	2065 }
adamc@120	2066
adamc@488	2067 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2068 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2069 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2070 return r;
adamc@488	2071 }
adamc@488	2072
adamc@1023	2073 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2074 char s1, s2 = s;
adamc@144	2075 int n;
adamc@136	2076
adamc@1023	2077 if (!fromClient) {
adamc@1023	2078 if (*s2 == '_')
adamc@1023	2079 ++s2;
adamc@1259	2080 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2081 s2 += 3;
adamc@1023	2082 }
adamc@925	2083
adamc@927	2084 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2085 unsigned char c = *s2;
adamc@136	2086
adamc@136	2087 switch (c) {
adamc@136	2088 case '+':
adamc@136	2089 *s1 = ' ';
adamc@136	2090 break;
adamc@136	2091 case '%':
adamc@169	2092 if (s2[1] == 0)
adamc@311	2093 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2094 if (s2[2] == 0)
adamc@311	2095 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2096 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2097 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2098 *s1 = n;
adamc@136	2099 s2 += 2;
adamc@136	2100 break;
adamc@1259	2101 case '.':
adamc@1259	2102 if (!fromClient) {
adamc@1259	2103 if (s2[1] == 0)
adamc@1259	2104 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2105 if (s2[2] == 0)
adamc@1259	2106 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2107 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2108 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2109 *s1 = n;
adamc@1259	2110 s2 += 2;
adamc@1259	2111 break;
adamc@1259	2112 }
adamc@136	2113 default:
adamc@136	2114 *s1 = c;
adamc@136	2115 }
adamc@136	2116 }
adamc@136	2117 *s1++ = 0;
adamc@144	2118 return s1;
adamc@144	2119 }
adamc@144	2120
adamc@311	2121 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2122 char new_s = uw_unurlify_advance(s);
adamc@311	2123 uw_Basis_bool r;
phurst@1981	2124
adamc@186	2125 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2126 r = uw_Basis_False;
adamc@186	2127 else
adamc@311	2128 r = uw_Basis_True;
adamc@186	2129
adamc@186	2130 *s = new_s;
adamc@186	2131 return r;
adamc@186	2132 }
adamc@186	2133
adamc@311	2134 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2135 char new_s = uw_unurlify_advance(s);
adamc@1134	2136 char *r;
adamc@1134	2137 int len;
adamc@144	2138
adamc@200	2139 len = strlen(*s);
adamc@311	2140 uw_check_heap(ctx, len + 1);
adamc@144	2141
adamc@666	2142 r = ctx->heap.front;
adamc@1023	2143 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2144 *s = new_s;
adamc@1023	2145 return r;
adamc@1023	2146 }
adamc@1023	2147
adamc@1109	2148 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2149 s = uw_unurlify_advance(s);
adamc@1109	2150 return uw_unit_v;
adamc@1109	2151 }
adamc@1109	2152
adamc@1023	2153 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2154 char new_s = uw_unurlify_advance(s);
adamc@1134	2155 char *r;
adamc@1134	2156 int len;
adamc@1023	2157
adamc@1023	2158 len = strlen(*s);
adamc@1023	2159 uw_check_heap(ctx, len + 1);
adamc@1023	2160
adamc@1023	2161 r = ctx->heap.front;
adamc@1023	2162 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2163 *s = new_s;
adamc@136	2164 return r;
adamc@120	2165 }
adamc@135	2166
adamc@135	2167
adamc@311	2168 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2169 int len;
adamc@286	2170 char *r;
adamc@286	2171
adamc@311	2172 uw_check_heap(ctx, INTS_MAX);
adamc@666	2173 r = ctx->heap.front;
adamc@286	2174 sprintf(r, "%lld%n", n, &len);
adamc@666	2175 ctx->heap.front += len+1;
adamc@286	2176 return r;
adamc@286	2177 }
adamc@286	2178
adamc@428	2179 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2180 int len;
adamc@286	2181
adamc@311	2182 uw_check(ctx, INTS_MAX);
adamc@666	2183 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2184 ctx->page.front += len;
phurst@1981	2185
adamc@428	2186 return uw_unit_v;
adamc@286	2187 }
adamc@286	2188
adam@1358	2189 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2190 unsigned int n = ch;
adam@1358	2191 int len;
adam@1358	2192 char *r;
adam@1358	2193
adam@1358	2194 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2195 r = ctx->heap.front;
adam@1358	2196 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2197 ctx->heap.front += len+1;
adam@1358	2198 return r;
adam@1358	2199 }
adam@1358	2200
adam@1358	2201 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2202 unsigned int n = ch;
adam@1358	2203 int len;
adam@1358	2204
adam@1358	2205 uw_check(ctx, INTS_MAX+3);
adam@1358	2206 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2207 ctx->page.front += len;
adam@1358	2208 return uw_unit_v;
adam@1358	2209 }
adam@1358	2210
adamc@311	2211 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2212 int len;
adamc@286	2213 char *r;
adamc@286	2214
adamc@311	2215 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2216 r = ctx->heap.front;
adamc@286	2217 sprintf(r, "%g%n", n, &len);
adamc@666	2218 ctx->heap.front += len+1;
adamc@286	2219 return r;
adamc@286	2220 }
adamc@286	2221
adamc@428	2222 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2223 int len;
adamc@286	2224
adamc@311	2225 uw_check(ctx, FLOATS_MAX);
adamc@666	2226 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2227 ctx->page.front += len;
adamc@428	2228
adamc@428	2229 return uw_unit_v;
adamc@286	2230 }
adamc@286	2231
adam@1365	2232 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2233 int len;
adam@1360	2234 char *r;
adam@1360	2235
adam@1360	2236 uw_check_heap(ctx, INTS_MAX);
adam@1360	2237 r = ctx->heap.front;
adamc@1377	2238 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2239 ctx->heap.front += len+1;
adam@1360	2240 return r;
adam@1360	2241 }
adam@1360	2242
adam@1365	2243 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2244 int len;
adam@1360	2245
adam@1360	2246 uw_check(ctx, INTS_MAX);
adam@1360	2247 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2248 ctx->page.front += len;
phurst@1981	2249
adam@1360	2250 return uw_unit_v;
adam@1360	2251 }
adam@1360	2252
adam@1444	2253 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2254 char r, s2;
adamc@137	2255
adamc@311	2256 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2257
adamc@666	2258 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2259 unsigned char c = *s;
adamc@137	2260
adamc@137	2261 switch (c) {
adamc@137	2262 case '<':
adamc@137	2263 strcpy(s2, "<");
adamc@137	2264 s2 += 4;
adamc@137	2265 break;
adamc@137	2266 case '&':
adamc@137	2267 strcpy(s2, "&");
adamc@137	2268 s2 += 5;
adamc@137	2269 break;
adamc@137	2270 default:
adamc@1059	2271 *s2++ = c;
adamc@137	2272 }
adamc@137	2273 }
adamc@137	2274
adamc@137	2275 *s2++ = 0;
adamc@666	2276 ctx->heap.front = s2;
adamc@137	2277 return r;
adamc@135	2278 }
adamc@135	2279
adamc@428	2280 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2281 uw_check(ctx, strlen(s) * 6);
adamc@135	2282
adamc@135	2283 for (; *s; s++) {
adamc@1054	2284 unsigned char c = *s;
adamc@135	2285
adamc@135	2286 switch (c) {
adamc@135	2287 case '<':
adamc@311	2288 uw_write_unsafe(ctx, "<");
adamc@135	2289 break;
adamc@135	2290 case '&':
adamc@311	2291 uw_write_unsafe(ctx, "&");
adamc@135	2292 break;
adamc@135	2293 default:
adamc@1059	2294 uw_writec_unsafe(ctx, c);
adamc@135	2295 }
adamc@135	2296 }
adamc@428	2297
adamc@428	2298 return uw_unit_v;
adamc@135	2299 }
adamc@180	2300
adamc@311	2301 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2302 if (b == uw_Basis_False)
adamc@286	2303 return "False";
adamc@286	2304 else
adamc@286	2305 return "True";
adamc@286	2306 }
adamc@286	2307
adamc@428	2308 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2309 if (b == uw_Basis_False) {
adamc@311	2310 uw_check(ctx, 6);
adamc@666	2311 strcpy(ctx->page.front, "False");
adamc@666	2312 ctx->page.front += 5;
adamc@286	2313 } else {
adamc@311	2314 uw_check(ctx, 5);
adamc@666	2315 strcpy(ctx->page.front, "True");
adamc@666	2316 ctx->page.front += 4;
adamc@286	2317 }
adamc@428	2318
adamc@428	2319 return uw_unit_v;
adamc@286	2320 }
adamc@286	2321
adamc@436	2322 #define TIME_FMT "%x %X"
adamc@438	2323 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2324 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2325
adam@1629	2326 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2327
adamc@436	2328 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2329 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2330 }
adamc@436	2331
adamc@436	2332 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2333 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2334 }
adamc@436	2335
adam@1446	2336 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2337 int len;
adam@1446	2338 char *r;
adam@1446	2339
adam@1446	2340 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2341 r = ctx->heap.front;
adam@1446	2342 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2343 ctx->heap.front += len+1;
adam@1446	2344 return r;
adam@1446	2345 }
adam@1446	2346
adam@1446	2347 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2348 int len;
adam@1446	2349
adam@1446	2350 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2351 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2352 ctx->page.front += len;
phurst@1981	2353
adam@1446	2354 return uw_unit_v;
adam@1446	2355 }
adam@1446	2356
adamc@821	2357 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2358 while (n >= 0) {
adam@1388	2359 if (*s == 0)
adam@1388	2360 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2361
adam@1388	2362 if (n == 0)
adam@1388	2363 return *s;
adam@1388	2364
adam@1388	2365 --n;
adam@1388	2366 ++s;
adam@1388	2367 }
adam@1388	2368
adam@1388	2369 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2370 }
adamc@821	2371
adamc@821	2372 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2373 while (n >= 0) {
adam@1388	2374 if (*s == 0 \|\| n == 0)
adam@1388	2375 return s;
adam@1388	2376
adam@1388	2377 --n;
adam@1388	2378 ++s;
adam@1388	2379 }
adam@1388	2380
adam@1388	2381 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2382 }
adamc@821	2383
adamc@828	2384 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2385 return strlen(s);
adamc@828	2386 }
adamc@828	2387
adam@1388	2388 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2389 while (n > 0) {
adam@1388	2390 if (*s == 0)
adam@1388	2391 return uw_Basis_False;
adam@1388	2392
adam@1388	2393 --n;
adam@1388	2394 ++s;
adam@1388	2395 }
adam@1388	2396
adam@1388	2397 return uw_Basis_True;
adam@1388	2398 }
adam@1388	2399
adamc@829	2400 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2401 return strchr(s, ch);
adamc@829	2402 }
adamc@829	2403
adamc@831	2404 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2405 return strcspn(s, chs);
adamc@831	2406 }
adamc@831	2407
adamc@829	2408 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2409 uw_Basis_string r = strchr(s, ch);
adamc@829	2410 if (r == NULL)
adamc@829	2411 return NULL;
adamc@829	2412 else {
adamc@829	2413 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2414 *nr = r - s;
adamc@829	2415 return nr;
adamc@829	2416 }
adamc@829	2417 }
adamc@829	2418
adam@1390	2419 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2420 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2421 if (r == NULL)
adam@1390	2422 return NULL;
adam@1390	2423 else {
adam@1390	2424 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2425 *nr = r - haystack;
adam@1390	2426 return nr;
adam@1390	2427 }
adam@1390	2428 }
adam@1390	2429
adamc@311	2430 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2431 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2432 char *s;
adamc@180	2433
adamc@311	2434 uw_check_heap(ctx, len);
adamc@180	2435
adamc@666	2436 s = ctx->heap.front;
adamc@180	2437
adamc@180	2438 strcpy(s, s1);
adamc@180	2439 strcat(s, s2);
adamc@666	2440 ctx->heap.front += len;
adamc@180	2441
adamc@180	2442 return s;
adamc@180	2443 }
adamc@278	2444
adamc@829	2445 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2446 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2447
adamc@829	2448 if (start < 0)
adamc@829	2449 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2450 if (len < 0)
adamc@829	2451 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2452 if (start + len > full_len)
adamc@829	2453 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2454
adamc@829	2455 if (start + len == full_len)
adamc@829	2456 return &s[start];
adamc@829	2457 else {
adamc@829	2458 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2459 memcpy(r, s+start, len);
adamc@829	2460 r[len] = 0;
adamc@829	2461 return r;
adamc@829	2462 }
phurst@1981	2463
adamc@829	2464 }
adamc@829	2465
adamc@1023	2466 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2467 char *r;
adamc@1023	2468
adamc@1023	2469 uw_check_heap(ctx, 2);
adamc@1023	2470 r = ctx->heap.front;
adamc@1023	2471 r[0] = ch;
adamc@1023	2472 r[1] = 0;
adamc@1023	2473
adamc@1023	2474 ctx->heap.front += 2;
adamc@1023	2475
adamc@1023	2476 return r;
adamc@1023	2477 }
adamc@1023	2478
adamc@737	2479 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2480 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2481 char *s;
adamc@278	2482
adamc@311	2483 uw_check_heap(ctx, len);
adamc@278	2484
adamc@666	2485 s = ctx->heap.front;
adamc@278	2486
adamc@278	2487 strcpy(s, s1);
adamc@666	2488 ctx->heap.front += len;
adamc@278	2489
adamc@278	2490 return s;
adamc@278	2491 }
adamc@280	2492
adam@1295	2493 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2494 if (ctx->error_message[0]) {
adam@1295	2495 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2496 ctx->error_message[0] = 0;
adam@1295	2497 return s;
adam@1295	2498 } else
adam@1295	2499 return NULL;
adam@1295	2500 }
adam@1295	2501
adamc@737	2502 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2503 if (s1)
adamc@737	2504 return uw_strdup(ctx, s1);
adamc@493	2505 else
adamc@493	2506 return NULL;
adamc@493	2507 }
adamc@493	2508
adamc@742	2509 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2510 char *r = uw_malloc(ctx, len);
adamc@742	2511 memcpy(r, p, len);
adamc@742	2512 return r;
adamc@742	2513 }
adamc@280	2514
adamc@879	2515 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2516
adamc@311	2517 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2518 int len;
adamc@281	2519 char *r;
adamc@281	2520
adamc@311	2521 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2522 r = ctx->heap.front;
adamc@879	2523 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2524 ctx->heap.front += len+1;
adamc@281	2525 return r;
adamc@281	2526 }
adamc@281	2527
adamc@467	2528 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2529 if (n == NULL)
adamc@467	2530 return "NULL";
adamc@467	2531 else
adamc@467	2532 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2533 }
adamc@467	2534
adam@1920	2535 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2536
adamc@311	2537 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2538 int len;
adamc@281	2539 char *r;
adamc@281	2540
adamc@311	2541 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2542 r = ctx->heap.front;
adamc@879	2543 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2544 ctx->heap.front += len+1;
adamc@281	2545 return r;
adamc@281	2546 }
adamc@281	2547
adamc@467	2548 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2549 if (n == NULL)
adamc@467	2550 return "NULL";
adamc@467	2551 else
adamc@467	2552 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2553 }
adamc@467	2554
adam@1834	2555 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2556 char *uw_sqlsuffixString = "::text";
adamc@1011	2557 char *uw_sqlsuffixChar = "::char";
adamc@281	2558
adamc@311	2559 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2560 char r, s2;
adamc@280	2561
adamc@879	2562 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2563
adamc@666	2564 r = s2 = ctx->heap.front;
adamc@879	2565 if (uw_Estrings)
adamc@879	2566 *s2++ = 'E';
adamc@280	2567 *s2++ = '\'';
adamc@280	2568
adamc@280	2569 for (; *s; s++) {
adamc@280	2570 char c = *s;
adamc@280	2571
adamc@280	2572 switch (c) {
adamc@280	2573 case '\'':
adamc@885	2574 if (uw_Estrings)
adamc@885	2575 strcpy(s2, "\\'");
adamc@885	2576 else
adamc@885	2577 strcpy(s2, "''");
adamc@280	2578 s2 += 2;
adamc@280	2579 break;
adamc@280	2580 case '\\':
adamc@885	2581 if (uw_Estrings) {
adamc@885	2582 strcpy(s2, "\\\\");
adamc@885	2583 s2 += 2;
adamc@885	2584 } else
adamc@885	2585 *s2++ = '\\';
adamc@280	2586 break;
adamc@280	2587 default:
adamc@1150	2588 if (isprint((int)c))
adamc@280	2589 *s2++ = c;
adamc@879	2590 else if (uw_Estrings) {
adam@1857	2591 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2592 s2 += 4;
adamc@280	2593 }
adamc@879	2594 else
adam@1689	2595 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2596 }
adamc@280	2597 }
adamc@280	2598
adamc@879	2599 *s2++ = '\'';
adamc@879	2600 strcpy(s2, uw_sqlsuffixString);
adamc@879	2601 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2602 return r;
adamc@280	2603 }
adamc@281	2604
adamc@1011	2605 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2606 char r, s2;
adamc@1011	2607
adamc@1011	2608 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2609
adamc@1011	2610 r = s2 = ctx->heap.front;
adamc@1011	2611 if (uw_Estrings)
adamc@1011	2612 *s2++ = 'E';
adamc@1011	2613 *s2++ = '\'';
adamc@1011	2614
adamc@1011	2615 switch (c) {
adamc@1011	2616 case '\'':
adamc@1011	2617 if (uw_Estrings)
adamc@1011	2618 strcpy(s2, "\\'");
adamc@1011	2619 else
adamc@1011	2620 strcpy(s2, "''");
adamc@1011	2621 s2 += 2;
adamc@1011	2622 break;
adamc@1011	2623 case '\\':
adamc@1011	2624 if (uw_Estrings) {
adamc@1011	2625 strcpy(s2, "\\\\");
adamc@1011	2626 s2 += 2;
adamc@1011	2627 } else
adamc@1011	2628 *s2++ = '\\';
adamc@1011	2629 break;
adamc@1011	2630 default:
adamc@1150	2631 if (isprint((int)c))
adamc@1011	2632 *s2++ = c;
adamc@1011	2633 else if (uw_Estrings) {
adam@1857	2634 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2635 s2 += 4;
adamc@1011	2636 }
adamc@1011	2637 else
adamc@1011	2638 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2639 }
adamc@1011	2640
adamc@1011	2641 *s2++ = '\'';
adamc@1011	2642 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2643 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2644 return r;
adamc@1011	2645 }
adamc@1011	2646
adamc@879	2647 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2648
adam@1867	2649 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2650 char r, s2;
adamc@737	2651 size_t i;
adamc@737	2652
adam@1867	2653 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2654
adamc@737	2655 r = s2 = ctx->heap.front;
adamc@879	2656 if (uw_Estrings)
adamc@879	2657 *s2++ = 'E';
adam@1867	2658 else
adam@1867	2659 *s2++ = 'X';
adamc@737	2660 *s2++ = '\'';
adamc@737	2661
adamc@737	2662 for (i = 0; i < b.size; ++i) {
adam@1867	2663 unsigned char c = b.data[i];
adam@1867	2664
adam@1867	2665 if (uw_Estrings) {
adam@1867	2666 switch (c) {
adam@1867	2667 case '\'':
adamc@885	2668 strcpy(s2, "\\'");
adam@1867	2669 s2 += 2;
adam@1867	2670 break;
adam@1867	2671 case '\\':
adamc@885	2672 strcpy(s2, "\\\\\\\\");
adamc@885	2673 s2 += 4;
adam@1867	2674 break;
adam@1867	2675 default:
adam@1867	2676 if (isprint((int)c))
adam@1867	2677 *s2++ = c;
adam@1867	2678 else {
adam@1867	2679 sprintf(s2, "\\\\%03o", c);
adam@1867	2680 s2 += 5;
adam@1867	2681 }
adamc@737	2682 }
adam@1867	2683 } else {
adam@1867	2684 sprintf(s2, "%02X", c);
adam@1867	2685 s2 += 2;
adamc@737	2686 }
phurst@1981	2687 }
adamc@737	2688
adamc@879	2689 *s2++ = '\'';
adamc@879	2690 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2691 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2692 return r;
adamc@737	2693 }
adamc@737	2694
adamc@682	2695 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2696 int len;
adamc@682	2697 char *r;
adamc@682	2698 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2699
adamc@682	2700 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2701 r = ctx->heap.front;
adamc@879	2702 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2703 ctx->heap.front += len+1;
adamc@682	2704 return r;
adamc@682	2705 }
adamc@682	2706
adamc@682	2707 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2708 int len;
adamc@682	2709 char *r;
adamc@682	2710 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2711
adamc@682	2712 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2713 r = ctx->heap.front;
adamc@682	2714 sprintf(r, "%lld%n", combo, &len);
adamc@682	2715 ctx->heap.front += len+1;
adamc@682	2716 return r;
adamc@682	2717 }
adamc@682	2718
adamc@879	2719 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2720
adamc@682	2721 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2722 int len;
adamc@682	2723 char *r;
adamc@682	2724
adamc@682	2725 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2726 r = ctx->heap.front;
adamc@879	2727 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2728 ctx->heap.front += len+1;
adamc@682	2729 return r;
adamc@682	2730 }
adamc@682	2731
adamc@682	2732 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2733 int len;
adamc@682	2734 char *r;
adamc@682	2735
adamc@682	2736 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2737 r = ctx->heap.front;
adamc@682	2738 sprintf(r, "%u%n", cli, &len);
adamc@682	2739 ctx->heap.front += len+1;
adamc@682	2740 return r;
adamc@682	2741 }
adamc@682	2742
adamc@467	2743 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2744 if (s == NULL)
adamc@467	2745 return "NULL";
adamc@467	2746 else
adamc@467	2747 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2748 }
adamc@467	2749
adamc@311	2750 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2751 if (b == uw_Basis_False)
adamc@281	2752 return "FALSE";
adamc@281	2753 else
adamc@281	2754 return "TRUE";
adamc@281	2755 }
adamc@282	2756
adamc@467	2757 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2758 if (b == NULL)
adamc@467	2759 return "NULL";
adamc@467	2760 else
adamc@467	2761 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2762 }
adamc@467	2763
adamc@439	2764 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2765 size_t len;
adamc@682	2766 char r, s;
adam@1392	2767 struct tm stm = {};
adam@1392	2768 stm.tm_isdst = -1;
adamc@682	2769
adam@1365	2770 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2771 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2772 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2773 if (uw_sql_type_annotations) {
adam@1834	2774 if (t.microseconds) {
adam@1834	2775 r = uw_malloc(ctx, len + 21);
adam@1834	2776 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2777 } else {
adam@1834	2778 r = uw_malloc(ctx, len + 14);
adam@1834	2779 sprintf(r, "'%s'::timestamp", s);
adam@1834	2780 }
adam@1367	2781 } else {
adam@1834	2782 r = uw_malloc(ctx, len + 3);
adam@1834	2783 sprintf(r, "'%s'", s);
adam@1367	2784 }
adamc@682	2785 return r;
adamc@682	2786 } else
adamc@682	2787 return "<Invalid time>";
adamc@682	2788 }
adamc@682	2789
adamc@682	2790 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2791 size_t len;
adamc@439	2792 char *r;
adam@1392	2793 struct tm stm = {};
adam@1392	2794 stm.tm_isdst = -1;
adamc@439	2795
adam@1365	2796 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2797 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2798 r = ctx->heap.front;
adamc@439	2799 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2800 ctx->heap.front += len+1;
adamc@439	2801 return r;
adamc@439	2802 } else
adamc@439	2803 return "<Invalid time>";
adamc@439	2804 }
adamc@439	2805
adam@1364	2806 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2807 size_t len;
adam@1364	2808 char *r;
adam@1392	2809 struct tm stm = {};
adam@1392	2810 stm.tm_isdst = -1;
adam@1364	2811
adam@1365	2812 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2813 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2814 r = ctx->heap.front;
adam@1365	2815 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2816 ctx->heap.front += len;
adam@1365	2817 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2818 ctx->heap.front += 8;
adam@1364	2819 return r;
adam@1364	2820 } else
adam@1364	2821 return "<Invalid time>";
adam@1364	2822 }
adam@1364	2823
adamc@467	2824 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2825 if (t == NULL)
adamc@467	2826 return "NULL";
adamc@467	2827 else
adamc@467	2828 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2829 }
adamc@467	2830
adamc@311	2831 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2832 static uw_Basis_int true = 1;
adamc@311	2833 static uw_Basis_int false = 0;
adamc@282	2834
adamc@311	2835 if (b == uw_Basis_False)
adamc@282	2836 return (char *)&false;
adamc@282	2837 else
adamc@282	2838 return (char *)&true;
adamc@282	2839 }
adamc@284	2840
adamc@311	2841 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2842 int len;
adamc@284	2843 char *r;
adamc@284	2844
adamc@311	2845 uw_check_heap(ctx, INTS_MAX);
adamc@666	2846 r = ctx->heap.front;
adamc@284	2847 sprintf(r, "%lld%n", n, &len);
adamc@666	2848 ctx->heap.front += len+1;
adamc@284	2849 return r;
adamc@284	2850 }
adamc@285	2851
adamc@311	2852 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2853 int len;
adamc@285	2854 char *r;
adamc@285	2855
adamc@311	2856 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2857 r = ctx->heap.front;
adamc@285	2858 sprintf(r, "%g%n", n, &len);
adamc@666	2859 ctx->heap.front += len+1;
adamc@285	2860 return r;
adamc@285	2861 }
adamc@285	2862
adamc@821	2863 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2864 char *r = uw_malloc(ctx, 2);
adamc@821	2865 r[0] = ch;
adamc@821	2866 r[1] = 0;
adamc@821	2867 return r;
adamc@821	2868 }
adamc@821	2869
adamc@311	2870 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2871 if (b == uw_Basis_False)
adamc@285	2872 return "False";
adamc@285	2873 else
adamc@285	2874 return "True";
adamc@285	2875 }
adamc@288	2876
adam@1359	2877 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2878 size_t len;
adam@1352	2879 char *r;
adam@1392	2880 struct tm stm = {};
adam@1392	2881 stm.tm_isdst = -1;
adam@1352	2882
adam@1365	2883 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2884 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2885 r = ctx->heap.front;
adam@1352	2886 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2887 ctx->heap.front += len+1;
adam@1352	2888 return r;
adam@1352	2889 } else
adam@1352	2890 return "<Invalid time>";
adam@1352	2891 }
adam@1352	2892
adam@1629	2893 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2894 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2895 }
adam@1629	2896
adamc@311	2897 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2898 char *endptr;
adamc@311	2899 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2900
adamc@288	2901 if (s != '\0' && endptr == '\0') {
adamc@311	2902 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2903 *r = n;
adamc@288	2904 return r;
adamc@288	2905 } else
adamc@288	2906 return NULL;
adamc@288	2907 }
adamc@289	2908
adamc@311	2909 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2910 char *endptr;
adamc@311	2911 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2912
adamc@289	2913 if (s != '\0' && endptr == '\0') {
adamc@311	2914 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2915 *r = n;
adamc@289	2916 return r;
adamc@289	2917 } else
adamc@289	2918 return NULL;
adamc@289	2919 }
adamc@289	2920
adamc@821	2921 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2922 if (s[0] == 0) {
adamc@821	2923 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2924 r[0] = 0;
adamc@821	2925 return r;
adamc@821	2926 } else if (s[1] != 0)
adamc@821	2927 return NULL;
adamc@821	2928 else {
adamc@821	2929 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2930 r[0] = s[0];
adamc@821	2931 return r;
adamc@821	2932 }
adamc@821	2933 }
adamc@821	2934
adamc@311	2935 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2936 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2937 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2938
adamc@289	2939 if (!strcasecmp (s, "True"))
adamc@289	2940 return &true;
adamc@289	2941 else if (!strcasecmp (s, "False"))
adamc@289	2942 return &false;
adamc@289	2943 else
adamc@289	2944 return NULL;
adamc@289	2945 }
adamc@292	2946
adamc@436	2947 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2948 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2949 struct tm stm = {};
adam@1392	2950 stm.tm_isdst = -1;
adamc@436	2951
adamc@439	2952 if (dot) {
adamc@439	2953 *dot = 0;
adamc@439	2954 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2955 *dot = '.';
adamc@439	2956 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2957 r->seconds = mktime(&stm);
adam@1365	2958 r->microseconds = 0;
adamc@439	2959 return r;
adamc@439	2960 }
adamc@439	2961 else {
adamc@439	2962 *dot = '.';
adamc@439	2963 return NULL;
adamc@439	2964 }
adamc@436	2965 }
adamc@439	2966 else {
adam@2072	2967 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2968 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2969 r->seconds = mktime(&stm);
adam@1365	2970 r->microseconds = 0;
adamc@439	2971 return r;
adam@2072	2972 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2973 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2974 r->seconds = mktime(&stm);
adam@2072	2975 r->microseconds = 0;
adam@2072	2976 return r;
adam@2072	2977 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2978 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2979 r->seconds = mktime(&stm);
adam@1365	2980 r->microseconds = 0;
adamc@439	2981 return r;
adam@1632	2982 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2983 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2984 r->seconds = mktime(&stm);
adam@1632	2985 r->microseconds = 0;
adam@1632	2986 return r;
adamc@439	2987 }
adamc@439	2988 else
adamc@439	2989 return NULL;
adamc@439	2990 }
adamc@436	2991 }
adamc@436	2992
adam@1352	2993 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2994 char *end = strchr(s, 0);
adam@1374	2995 struct tm stm = {};
adam@1392	2996 stm.tm_isdst = -1;
adam@1352	2997
adam@1352	2998 if (strptime(s, fmt, &stm) == end) {
adam@1352	2999 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	3000 r->seconds = mktime(&stm);
adam@1365	3001 r->microseconds = 0;
adam@1352	3002 return r;
adam@1352	3003 }
adam@1352	3004 else
adam@1352	3005 return NULL;
adam@1352	3006 }
adam@1352	3007
adamc@311	3008 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	3009 char *endptr;
adamc@311	3010 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	3011
adamc@292	3012 if (s != '\0' && endptr == '\0')
adamc@292	3013 return n;
adamc@292	3014 else
adam@1444	3015 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	3016 }
adamc@293	3017
adamc@682	3018 #include <errno.h>
adamc@682	3019
adamc@678	3020 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	3021 unsigned long long n;
adamc@682	3022
adamc@682	3023 if (sscanf(s, "%llu", &n) < 1)
adam@1444	3024 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	3025 else {
adamc@682	3026 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	3027 return ch;
adamc@682	3028 }
adamc@682	3029 }
adamc@682	3030
adamc@682	3031 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	3032 char *endptr;
adamc@682	3033 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	3034
adamc@678	3035 if (s != '\0' && endptr == '\0')
adamc@678	3036 return n;
adamc@678	3037 else
adam@1444	3038 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	3039 }
adamc@678	3040
adamc@311	3041 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	3042 char *endptr;
adamc@311	3043 uw_Basis_float n = strtod(s, &endptr);
adamc@293	3044
adamc@293	3045 if (s != '\0' && endptr == '\0')
adamc@293	3046 return n;
adamc@293	3047 else
adam@1444	3048 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3049 }
adamc@293	3050
adamc@821	3051 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3052 if (s[0] == 0)
adamc@821	3053 return 0;
adamc@821	3054 else if (s[1] != 0)
adam@1444	3055 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3056 else
adamc@821	3057 return s[0];
adamc@821	3058 }
adamc@821	3059
adamc@311	3060 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3061 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3062 return uw_Basis_True;
adamc@296	3063 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3064 return uw_Basis_False;
adamc@293	3065 else
adam@1444	3066 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3067 }
adamc@436	3068
adam@1352	3069 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3070 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3071 struct tm stm = {};
adam@1392	3072 stm.tm_isdst = -1;
adam@1352	3073
adam@1352	3074 if (dot) {
adam@1352	3075 *dot = 0;
adam@1352	3076 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3077 *dot = '.';
adam@1410	3078 char usec[] = "000000";
adam@1410	3079 int len = strlen(dot+1);
adam@1410	3080 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3081 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3082 return r;
adam@1352	3083 }
adam@1352	3084 else {
adam@1352	3085 *dot = '.';
adam@1444	3086 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3087 }
adam@1352	3088 }
adam@1352	3089 else {
adam@1352	3090 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3091 uw_Basis_time r = { mktime(&stm) };
adam@1365	3092 return r;
adam@1352	3093 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3094 uw_Basis_time r = { mktime(&stm) };
adam@1365	3095 return r;
adam@1352	3096 } else
adam@1444	3097 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3098 }
adam@1352	3099 }
adam@1352	3100
adamc@436	3101 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3102 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3103 struct tm stm = {};
adam@1392	3104 stm.tm_isdst = -1;
adamc@436	3105
adamc@438	3106 if (dot) {
adamc@438	3107 *dot = 0;
adamc@438	3108 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3109 *dot = '.';
adam@1365	3110 {
adam@1365	3111 uw_Basis_time r = { mktime(&stm) };
adam@1365	3112 return r;
adam@1365	3113 }
adamc@438	3114 }
adamc@438	3115 else {
adamc@438	3116 *dot = '.';
adam@1444	3117 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3118 }
adamc@438	3119 }
adamc@438	3120 else {
adam@2072	3121 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3122 uw_Basis_time r = { mktime(&stm) };
adam@2072	3123 return r;
adam@2072	3124 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3125 uw_Basis_time r = { mktime(&stm) };
adam@1365	3126 return r;
adam@1365	3127 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3128 uw_Basis_time r = { mktime(&stm) };
adam@1365	3129 return r;
adam@1632	3130 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3131 uw_Basis_time r = { mktime(&stm) };
adam@1632	3132 return r;
adam@1365	3133 } else
adam@1444	3134 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3135 }
adamc@436	3136 }
adamc@457	3137
adam@1352	3138 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3139 char *end = strchr(s, 0);
adamc@939	3140 struct tm stm = {};
adam@1392	3141 stm.tm_isdst = -1;
adamc@939	3142
adam@1365	3143 if (strptime(s, fmt, &stm) == end) {
adam@1365	3144 uw_Basis_time r = { mktime(&stm) };
adam@1365	3145 return r;
adam@1365	3146 } else
adam@1444	3147 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3148 }
adamc@939	3149
adamc@742	3150 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3151 char *r = ctx->heap.front;
adamc@742	3152 uw_Basis_blob b = {len, r};
adamc@742	3153
adamc@742	3154 uw_check_heap(ctx, len);
adamc@742	3155
adam@1992	3156 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3157 s += 2;
adam@1992	3158
adam@1992	3159 while (*s) {
adam@1992	3160 int n;
adam@1992	3161 sscanf(s, "%02x", &n);
adam@1992	3162 *r++ = n;
adam@1992	3163 s += 2;
adam@1992	3164 }
adam@1992	3165 } else {
adam@1992	3166 while (*s) {
adam@1992	3167 if (s[0] == '\\') {
adam@1992	3168 if (s[1] == '\\') {
adam@1992	3169 *r++ = '\\';
adam@1992	3170 s += 2;
adam@1992	3171 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3172 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3173 s += 4;
adam@1992	3174 }
adam@1992	3175 else {
adam@1992	3176 *r++ = '\\';
adam@1992	3177 ++s;
adam@1992	3178 }
adam@1992	3179 } else {
adam@1992	3180 *r++ = s[0];
adamc@742	3181 ++s;
adamc@742	3182 }
adamc@742	3183 }
adamc@742	3184 }
adamc@742	3185
adamc@742	3186 b.size = r - ctx->heap.front;
adamc@742	3187 ctx->heap.front = r;
adam@1992	3188
adamc@742	3189 return b;
adamc@742	3190 }
adamc@742	3191
adam@1402	3192 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3193
adamc@463	3194 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3195 int len = strlen(c);
adamc@854	3196 char *p = ctx->outHeaders.start;
adamc@474	3197
adamc@1134	3198 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3199 char *p2;
adamc@474	3200 p += 13;
adamc@474	3201 p2 = strchr(p, '=');
adamc@474	3202
adamc@474	3203 if (p2) {
adamc@474	3204 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3205
adamc@474	3206 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3207 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3208 return NULL;
adamc@1052	3209 else {
adamc@1052	3210 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3211 memcpy(ret, p2+1, sz);
adamc@1052	3212 ret[sz] = 0;
adamc@1052	3213 return ret;
adamc@1052	3214 }
adamc@474	3215 }
adamc@474	3216 }
adamc@474	3217 }
adamc@463	3218
adamc@1134	3219 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3220 char *p2;
adamc@1051	3221
adamc@854	3222 while (1) {
adamc@1051	3223 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3224 if ((p2 = strchr(p, ';'))) {
adamc@1051	3225 size_t n = p2 - (p + len);
adamc@1051	3226 char *r = uw_malloc(ctx, n);
adamc@1051	3227 memcpy(r, p + 1 + len, n-1);
adamc@1051	3228 r[n-1] = 0;
adamc@1051	3229 return r;
adamc@1051	3230 } else
adamc@1051	3231 return p + 1 + len;
adamc@1134	3232 } else if ((p = strchr(p, ';')))
adamc@854	3233 p += 2;
adamc@463	3234 else
adamc@463	3235 return NULL;
adamc@463	3236 }
adamc@463	3237 }
adamc@792	3238
adamc@792	3239 return NULL;
adamc@457	3240 }
adamc@462	3241
adam@1877	3242 static void set_cookie(uw_context ctx) {
adam@1877	3243 if (ctx->usedSig)
adam@1877	3244 ctx->needsResig = 1;
adam@1877	3245 }
adam@1877	3246
adamc@1050	3247 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	3248 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3249 uw_write_header(ctx, c);
adamc@462	3250 uw_write_header(ctx, "=");
adamc@462	3251 uw_write_header(ctx, v);
adamc@466	3252 uw_write_header(ctx, "; path=");
adamc@466	3253 uw_write_header(ctx, prefix);
adamc@1050	3254 if (expires) {
adamc@1050	3255 char formatted[30];
adam@1392	3256 struct tm tm = {};
adam@1392	3257 tm.tm_isdst = -1;
adamc@1050	3258
adam@1365	3259 gmtime_r(&expires->seconds, &tm);
adamc@1050	3260
adamc@1050	3261 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3262
adamc@1050	3263 uw_write_header(ctx, "; expires=");
adamc@1050	3264 uw_write_header(ctx, formatted);
adamc@1050	3265 }
adamc@1050	3266 if (secure)
adamc@1050	3267 uw_write_header(ctx, "; secure");
adamc@462	3268 uw_write_header(ctx, "\r\n");
adam@1877	3269 set_cookie(ctx);
adamc@462	3270
adamc@462	3271 return uw_unit_v;
adamc@462	3272 }
adamc@667	3273
adamc@1050	3274 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3275 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3276 uw_write_header(ctx, c);
adamc@1050	3277 uw_write_header(ctx, "=; path=");
adamc@1050	3278 uw_write_header(ctx, prefix);
adamc@1052	3279 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3280 set_cookie(ctx);
adamc@1050	3281
adamc@1050	3282 return uw_unit_v;
adamc@1050	3283 }
adamc@1050	3284
adamc@1113	3285 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3286
adamc@682	3287 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3288 unsigned i;
adamc@682	3289 delta *d;
adamc@671	3290
adamc@682	3291 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3292 if (ctx->deltas[i].client == client)
adamc@682	3293 return &ctx->deltas[i];
adamc@671	3294
adamc@682	3295 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3296 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3297 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3298
adamc@682	3299 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3300 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3301 }
adamc@671	3302
adamc@682	3303 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3304 d->client = client;
adam@1369	3305 uw_buffer_reset(&d->msgs);
adamc@682	3306 return d;
adamc@671	3307 }
adamc@671	3308
adamc@668	3309 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3310 if (ctx->client == NULL)
adamc@682	3311 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3312
adamc@682	3313 return new_channel(ctx->client);
adamc@668	3314 }
adamc@668	3315
adamc@668	3316 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3317 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3318 size_t len;
adamc@682	3319 int preLen;
adamc@682	3320 char pre[INTS_MAX + 2];
adamc@668	3321
adamc@682	3322 len = strlen(msg);
adamc@682	3323
adamc@682	3324 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3325
adam@1369	3326 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3327 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3328 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3329
adamc@671	3330 return uw_unit_v;
adamc@668	3331 }
adamc@671	3332
adam@1327	3333 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3334 int i;
adamc@1131	3335 cleanup *cl;
adamc@1131	3336
adamc@1131	3337 if (ctx->client)
adamc@1131	3338 release_client(ctx->client);
adamc@1131	3339
adamc@1131	3340 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3341 cl->func(cl->arg);
adamc@1131	3342
adamc@1131	3343 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3344
adamc@1131	3345 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3346 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3347 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3348
adamc@1131	3349 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3350 if (ctx->transactionals[i].free)
adam@1327	3351 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3352
adam@1941	3353 if (ctx->app && ctx->transaction_started) {
adam@1941	3354 ctx->transaction_started = 0;
adam@1941	3355 return ctx->app->db_rollback(ctx);
adam@1941	3356 } else
adam@1941	3357 return 0;
adamc@1131	3358 }
adamc@1131	3359
adam@1956	3360 const char uw_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@1956	3361 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3362
adam@1877	3363 extern int uw_hash_blocksize;
adam@1877	3364
adam@1877	3365 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3366
adam@1877	3367 static char find_sig(char haystack) {
adam@1877	3368 int i;
adam@1877	3369 char *s = strstr(haystack, sig_intro);
adam@1877	3370
adam@1877	3371 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3372 return NULL;
phurst@1981	3373
adam@1877	3374 s += sizeof sig_intro - 1;
adam@1877	3375
adam@1877	3376 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3377 if (!isxdigit((int)s[i]))
adam@1877	3378 return NULL;
adam@1877	3379
adam@1877	3380 if (s[i] != '"')
adam@1877	3381 return NULL;
adam@1877	3382
adam@1877	3383 return s;
adam@1877	3384 }
adam@1877	3385
adam@2033	3386 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3387
adam@1938	3388 int uw_commit(uw_context ctx) {
adamc@1104	3389 int i;
adam@1877	3390 char *sig;
adamc@1104	3391
adamc@1131	3392 if (uw_has_error(ctx)) {
adam@1327	3393 uw_rollback(ctx, 0);
adam@1938	3394 return 0;
adamc@1131	3395 }
adamc@1131	3396
adamc@1104	3397 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3398 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3399 if (ctx->transactionals[i].commit) {
adamc@1083	3400 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3401 if (uw_has_error(ctx)) {
adam@1327	3402 uw_rollback(ctx, 0);
adam@1938	3403 return 0;
adamc@1131	3404 }
adamc@1131	3405 }
adamc@771	3406
adam@2033	3407 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3408 if (ctx->used_deltas > 0)
adam@2033	3409 pthread_mutex_lock(&message_send_mutex);
adam@2033	3410
adam@2000	3411 if (ctx->transaction_started) {
adam@2000	3412 int code = ctx->app->db_commit(ctx);
adam@2000	3413
adam@2000	3414 if (code) {
adam@2033	3415 if (ctx->used_deltas > 0)
adam@2033	3416 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3417
adam@2000	3418 if (ctx->client)
adam@2000	3419 release_client(ctx->client);
adam@2000	3420
adam@2000	3421 if (code == -1) {
adam@2000	3422 // This case is for a serialization failure, which is not really an "error."
adam@2000	3423 // The transaction will restart, so we should rollback any transactionals
adam@2000	3424 // that triggered above.
adam@2000	3425
adam@2000	3426 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3427 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3428 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3429
adam@2000	3430 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3431 if (ctx->transactionals[i].free)
adam@2000	3432 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3433
grrwlf@2030	3434 return 1;
adam@2000	3435 }
adam@2000	3436
adam@2000	3437 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3438 if (ctx->transactionals[i].free)
adam@2000	3439 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3440
adam@2000	3441 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3442 return 0;
adam@2000	3443 }
adam@2000	3444 }
adam@2000	3445
adamc@1104	3446 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3447 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3448 if (ctx->transactionals[i].commit) {
adamc@1083	3449 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3450 if (uw_has_error(ctx)) {
adam@2033	3451 if (ctx->used_deltas > 0)
adam@2033	3452 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3453
adam@2033	3454 if (ctx->client)
adam@2033	3455 release_client(ctx->client);
adam@2033	3456
adam@2033	3457 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3458 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3459 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3460
adam@2033	3461 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3462 if (ctx->transactionals[i].free)
adam@2033	3463 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3464
adam@1938	3465 return 0;
adamc@1131	3466 }
adamc@1131	3467 }
adamc@1131	3468
adamc@682	3469 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3470 delta *d = &ctx->deltas[i];
adamc@682	3471 client *c = find_client(d->client);
adamc@682	3472
adam@1551	3473 assert (c != NULL);
adam@1551	3474 assert(c->mode == USED);
adamc@682	3475
adam@1447	3476 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3477 }
adamc@682	3478
adam@2033	3479 if (ctx->used_deltas > 0)
adam@2033	3480 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3481
adamc@682	3482 if (ctx->client)
adamc@685	3483 release_client(ctx->client);
adamc@771	3484
adamc@1104	3485 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3486 if (ctx->transactionals[i].free)
adam@1327	3487 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3488
vshabanoff@1726	3489 uw_check(ctx, 1);
vshabanoff@1726	3490 *ctx->page.front = 0;
adam@1413	3491
adam@1956	3492 if (!ctx->returning_indirectly
adam@1956	3493 && (ctx->app->is_html5
adam@1956	3494 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3495 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3496 char *s;
adam@1728	3497
adam@1728	3498 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3499 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3500 s = strchr(s, '<');
adam@1728	3501 if (s == NULL) {
adam@1728	3502 // Weird. Document has no tags!
adam@1728	3503
adam@1728	3504 uw_write(ctx, "<head></head><body></body>");
adam@1728	3505 uw_check(ctx, 1);
adam@1728	3506 *ctx->page.front = 0;
adam@1728	3507 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3508 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3509
adam@1729	3510 // Any freeform JavaScript to include?
adam@1729	3511 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3512 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3513 size_t lenP = lenH + 40 + len;
adam@1729	3514 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3515
adam@1729	3516 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3517 start += ctx->page.start - oldPage;
adam@1729	3518 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3519 ctx->page.front += lenP;
adam@1729	3520 memcpy(start, ctx->script_header, lenH);
adam@1729	3521 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3522 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3523 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3524 } else {
adam@1729	3525 size_t lenH = strlen(ctx->script_header);
adam@1729	3526 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3527
adam@1729	3528 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3529 start += ctx->page.start - oldPage;
adam@1729	3530 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3531 ctx->page.front += lenH;
adam@1729	3532 memcpy(start, ctx->script_header, lenH);
adam@1729	3533 }
adam@1728	3534 } else {
adam@1728	3535 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3536
adam@1729	3537 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3538 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3539 size_t lenP = lenH + 53 + len;
adam@1729	3540 char start = s, oldPage = ctx->page.start;
adam@1729	3541
adam@1729	3542 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3543 start += ctx->page.start - oldPage;
adam@1729	3544 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3545 ctx->page.front += lenP;
adam@1729	3546 memcpy(start, "<head>", 6);
adam@1729	3547 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3548 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3549 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3550 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3551 } else {
adam@1729	3552 size_t lenH = strlen(ctx->script_header);
adam@1729	3553 size_t lenP = lenH + 13;
adam@1729	3554 char start = s, oldPage = ctx->page.start;
adam@1729	3555
adam@1729	3556 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3557 start += ctx->page.start - oldPage;
adam@1729	3558 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3559 ctx->page.front += lenP;
adam@1729	3560 memcpy(start, "<head>", 6);
adam@1729	3561 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3562 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3563 }
adamc@916	3564 }
adamc@916	3565 }
adam@1877	3566
adam@1877	3567 if (ctx->needsResig) {
adam@1877	3568 sig = find_sig(ctx->page.start);
adam@1877	3569 if (sig) {
adam@1877	3570 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3571
adam@1877	3572 do {
adam@1877	3573 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3574 sig = find_sig(sig);
adam@1877	3575 } while (sig);
adam@1877	3576 }
adam@1877	3577 }
adam@1938	3578
adam@1938	3579 return 0;
adamc@671	3580 }
adamc@671	3581
adamc@683	3582
adamc@1113	3583 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3584
adam@2001	3585 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3586 uw_callback_with_retry free) {
adamc@771	3587 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3588 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3589 // Exceeded limit on number of transactionals.
adam@2001	3590 return -1;
adamc@1084	3591 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3592 ++ctx->n_transactionals;
adamc@771	3593 }
adamc@771	3594
adamc@771	3595 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3596 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3597 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3598 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3599
adam@2001	3600 return 0;
adamc@771	3601 }
adamc@771	3602
adamc@683	3603
adamc@683	3604 // "Garbage collection"
adamc@683	3605
adamc@1121	3606 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3607 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3608
adamc@1121	3609 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3610 int r = setjmp(ctx->jmp_buf);
adamc@683	3611
adamc@1121	3612 if (r == 0)
adamc@1121	3613 uw_do_expunge(ctx, cli, data);
adamc@1121	3614 else
adamc@1121	3615 ctx->app->db_rollback(ctx);
adamc@1121	3616
adamc@1121	3617 uw_post_expunge(ctx, data);
adamc@683	3618
adamc@683	3619 return r;
adamc@683	3620 }
adamc@683	3621
adamc@683	3622 void uw_prune_clients(uw_context ctx) {
adamc@683	3623 client c, next, *prev = NULL;
adamc@683	3624 time_t cutoff;
adamc@683	3625
adamc@1094	3626 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3627
adamc@683	3628 pthread_mutex_lock(&clients_mutex);
adam@1707	3629 pruning_thread = pthread_self();
adam@1707	3630 pruning_thread_initialized = 1;
adamc@683	3631
adamc@683	3632 for (c = clients_used; c; c = next) {
adamc@683	3633 next = c->next;
adamc@683	3634 pthread_mutex_lock(&c->lock);
adamc@685	3635 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3636 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3637 if (prev)
adamc@683	3638 prev->next = next;
adamc@683	3639 else
adamc@683	3640 clients_used = next;
adamc@683	3641 while (fk == UNLIMITED_RETRY) {
adam@1941	3642 uw_reset(ctx);
adamc@1121	3643 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3644 if (fk == UNLIMITED_RETRY)
adamc@684	3645 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3646 }
adamc@684	3647 if (fk == SUCCESS)
adamc@684	3648 free_client(c);
adamc@1121	3649 else
adamc@856	3650 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3651 }
adamc@683	3652 else
adamc@683	3653 prev = c;
adamc@683	3654 pthread_mutex_unlock(&c->lock);
adamc@683	3655 }
adamc@683	3656
adamc@683	3657 pthread_mutex_unlock(&clients_mutex);
adamc@683	3658 }
adamc@687	3659
adamc@687	3660 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3661 int r = setjmp(ctx->jmp_buf);
adamc@687	3662
adamc@687	3663 if (r == 0) {
adam@1936	3664 uw_ensure_transaction(ctx);
adamc@1094	3665 ctx->app->initializer(ctx);
adamc@1094	3666 if (ctx->app->db_commit(ctx))
adamc@687	3667 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3668 }
adamc@687	3669
adamc@687	3670 return r;
adamc@687	3671 }
adamc@717	3672
adamc@1065	3673 static int url_bad(uw_Basis_string s) {
adamc@1065	3674 for (; *s; ++s)
adamc@1153	3675 if (!isgraph((int)*s))
adamc@1065	3676 return 1;
adamc@1065	3677
adamc@1065	3678 return 0;
adamc@1065	3679 }
adamc@1065	3680
adamc@717	3681 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3682 if (url_bad(s))
adamc@1065	3683 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3684 if (ctx->app->check_url(s))
adamc@770	3685 return s;
adamc@770	3686 else
adamc@770	3687 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3688 }
adamc@734	3689
adamc@770	3690 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3691 if (url_bad(s))
adamc@1065	3692 return NULL;
adamc@1094	3693 if (ctx->app->check_url(s))
adamc@770	3694 return s;
adamc@770	3695 else
adamc@770	3696 return NULL;
adamc@770	3697 }
adamc@770	3698
adam@1465	3699 static int mime_format(const char *s) {
adamc@770	3700 for (; *s; ++s)
grrwlf@2024	3701 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3702 return 0;
adamc@770	3703
adamc@770	3704 return 1;
adamc@770	3705 }
adamc@770	3706
adamc@741	3707 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3708 if (!mime_format(s))
adamc@770	3709 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3710
adamc@1094	3711 if (ctx->app->check_mime(s))
adamc@770	3712 return s;
adamc@770	3713 else
adamc@770	3714 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3715 }
adamc@770	3716
adamc@770	3717 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3718 if (!mime_format(s))
adamc@770	3719 return NULL;
adamc@770	3720
adamc@1094	3721 if (ctx->app->check_mime(s))
adamc@770	3722 return s;
adamc@770	3723 else
adamc@770	3724 return NULL;
adamc@741	3725 }
adamc@741	3726
adam@1465	3727 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3728 if (!mime_format(s))
adam@1465	3729 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3730
adam@1465	3731 if (ctx->app->check_requestHeader(s))
adam@1465	3732 return s;
adam@1465	3733 else
adam@1465	3734 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3735 }
adam@1465	3736
adam@1465	3737 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3738 if (!mime_format(s))
adam@1465	3739 return NULL;
adam@1465	3740
adam@1465	3741 if (ctx->app->check_requestHeader(s))
adam@1465	3742 return s;
adam@1465	3743 else
adam@1465	3744 return NULL;
adam@1465	3745 }
adam@1465	3746
adam@1465	3747 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3748 if (!mime_format(s))
adam@1465	3749 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3750
adam@1465	3751 if (ctx->app->check_responseHeader(s))
adam@1465	3752 return s;
adam@1465	3753 else
adam@1465	3754 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3755 }
adam@1465	3756
adam@1799	3757 static int envVar_format(const char *s) {
adam@1799	3758 for (; *s; ++s)
adam@1799	3759 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3760 return 0;
adam@1799	3761
adam@1799	3762 return 1;
adam@1799	3763 }
adam@1799	3764
adam@1465	3765 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3766 if (!envVar_format(s))
adam@1465	3767 return NULL;
adam@1465	3768
adam@1465	3769 if (ctx->app->check_responseHeader(s))
adam@1465	3770 return s;
adam@1465	3771 else
adam@1465	3772 return NULL;
adam@1465	3773 }
adam@1465	3774
adam@1799	3775 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3776 if (!envVar_format(s))
adam@1799	3777 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3778
adam@1799	3779 if (ctx->app->check_envVar(s))
adam@1799	3780 return s;
adam@1799	3781 else
adam@1799	3782 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3783 }
adam@1799	3784
adam@1799	3785 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3786 if (!mime_format(s))
adam@1799	3787 return NULL;
adam@1799	3788
adam@1799	3789 if (ctx->app->check_envVar(s))
adam@1799	3790 return s;
adam@1799	3791 else
adam@1799	3792 return NULL;
adam@1799	3793 }
adam@1799	3794
adam@1465	3795 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3796 return uw_Basis_requestHeader(ctx, name);
adam@1465	3797 }
adam@1465	3798
adam@1465	3799 static int mime_value_format(const char *s) {
adam@1465	3800 for (; *s; ++s)
adam@1465	3801 if (s == '\r' \|\| s == '\n')
adam@1465	3802 return 0;
adam@1465	3803
adam@1465	3804 return 1;
adam@1465	3805 }
adam@1465	3806
adam@1465	3807 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3808 if (!mime_value_format(value))
adam@1465	3809 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3810
adam@1465	3811 uw_write_header(ctx, name);
adam@1465	3812 uw_write_header(ctx, ": ");
adam@1465	3813 uw_write_header(ctx, value);
adam@1465	3814 uw_write_header(ctx, "\r\n");
adam@1465	3815
adam@1465	3816 return uw_unit_v;
adam@1465	3817 }
adam@1465	3818
adam@1799	3819 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3820 if (ctx->get_env)
adam@1993	3821 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3822 else
adam@1994	3823 return getenv(name);
adam@1799	3824 }
adam@1799	3825
adamc@734	3826 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3827 return s ? s : "";
adamc@734	3828 }
adamc@734	3829
adamc@734	3830 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3831 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3832 int i;
phurst@1981	3833
adamc@734	3834 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3835 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3836
adamc@734	3837 return r;
adamc@734	3838 }
adamc@734	3839
adam@1512	3840 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3841 * optimizations that would enable timing attacks. See:
adam@1512	3842 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3843 */
adam@1512	3844 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3845 int i, x = 0, len1 = strlen(s1);
adam@1512	3846
adam@1512	3847 if (len1 != strlen(s2)) return 0;
adam@1512	3848
adam@1512	3849 for (i = 0; i < len1; ++i) {
adam@1512	3850 __asm__ __volatile__ ("");
adam@1512	3851 x \|= s1[i] ^ s2[i];
adam@1512	3852 }
adam@1512	3853
adam@1512	3854 return x == 0;
adam@1512	3855 }
adam@1512	3856
adamc@734	3857 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3858 ctx->usedSig = 1;
adamc@1094	3859 return ctx->app->cookie_sig(ctx);
adamc@734	3860 }
adamc@737	3861
adamc@737	3862 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3863 return f.name;
adamc@737	3864 }
adamc@737	3865
adamc@740	3866 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3867 return f.type;
adamc@740	3868 }
adamc@740	3869
adamc@745	3870 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3871 return b.size;
adamc@745	3872 }
adamc@745	3873
adamc@1119	3874 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3875 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3876
adamc@1119	3877 return b;
adamc@1119	3878 }
adamc@1119	3879
adamc@737	3880 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3881 return f.data;
adamc@737	3882 }
adamc@741	3883
adam@1347	3884 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3885 return pb.type;
adam@1347	3886 }
adam@1347	3887
adam@1347	3888 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3889 return pb.data;
adam@1347	3890 }
adam@1347	3891
adam@1471	3892 static char *old_headers(uw_context ctx) {
adam@1471	3893 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3894 return NULL;
adam@1471	3895 else {
adam@1471	3896 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3897
adam@1471	3898 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3899 return NULL;
adam@1471	3900 else {
adam@1471	3901 s = strchr(s+15, '\n');
adam@1471	3902 if (s == NULL)
adam@1471	3903 return NULL;
adam@1471	3904 else
adam@1471	3905 return uw_strdup(ctx, s+1);
adam@1471	3906 }
adam@1471	3907 }
adam@1471	3908 }
adam@1471	3909
adamc@741	3910 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3911 cleanup *cl;
adamc@741	3912 int len;
adam@1471	3913 char *oldh;
adamc@741	3914
adam@1451	3915 if (!ctx->allowed_to_return_indirectly)
adam@1451	3916 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3917
adamc@1065	3918 ctx->returning_indirectly = 1;
adam@1471	3919 oldh = old_headers(ctx);
adam@1369	3920 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3921 uw_buffer_reset(&ctx->page);
adamc@741	3922
adamc@856	3923 uw_write_header(ctx, on_success);
adamc@856	3924 uw_write_header(ctx, "Content-Type: ");
adamc@741	3925 uw_write_header(ctx, mimeType);
adam@1934	3926 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3927 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3928 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3929 ctx->outHeaders.front += len;
adamc@1066	3930 uw_write_header(ctx, "\r\n");
adam@1471	3931 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3932
adam@1369	3933 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3934
adamc@741	3935 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3936 cl->func(cl->arg);
adamc@741	3937
adamc@741	3938 ctx->cleanup_front = ctx->cleanup;
adamc@741	3939
adamc@1065	3940 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3941 }
adamc@1065	3942
adam@2046	3943 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3944 uw_buffer_reset(&ctx->page);
adam@2046	3945 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3946 }
adam@2046	3947
adam@1932	3948 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3949 cleanup *cl;
adam@1932	3950 int len;
adam@1932	3951 char *oldh;
adam@1932	3952
adam@1932	3953 if (!ctx->allowed_to_return_indirectly)
adam@1932	3954 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3955
adam@1932	3956 ctx->returning_indirectly = 1;
adam@1932	3957 oldh = old_headers(ctx);
adam@1932	3958 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3959
adam@1932	3960 uw_write_header(ctx, on_success);
adam@1932	3961 uw_write_header(ctx, "Content-Type: ");
adam@1932	3962 uw_write_header(ctx, mimeType);
adam@1934	3963 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3964 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3965 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3966 ctx->outHeaders.front += len;
adam@1932	3967 uw_write_header(ctx, "\r\n");
adam@1932	3968 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3969
adam@1932	3970 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3971 cl->func(cl->arg);
adam@1932	3972
adam@1932	3973 ctx->cleanup_front = ctx->cleanup;
adam@1932	3974
adam@1932	3975 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3976 }
adam@1932	3977
adamc@1065	3978 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3979 cleanup *cl;
adamc@1066	3980 char *s;
adam@1471	3981 char *oldh;
adamc@1065	3982
adam@1451	3983 if (!ctx->allowed_to_return_indirectly)
adam@1451	3984 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3985
adamc@1065	3986 ctx->returning_indirectly = 1;
adam@1471	3987 oldh = old_headers(ctx);
adam@1369	3988 uw_buffer_reset(&ctx->page);
adam@1369	3989 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3990 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3991 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3992 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3993
adam@1409	3994 if (on_success[0])
adam@1409	3995 uw_write_header(ctx, on_redirect);
adam@1409	3996 else
adam@1409	3997 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3998 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3999 if (s) {
adamc@1066	4000 char *s2;
adam@1409	4001 if (s[0] == '\n') ++s;
adam@1409	4002 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	4003 *s2 = 0;
adamc@1066	4004 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	4005 uw_write_header(ctx, s);
adamc@1066	4006 uw_write_header(ctx, "\n");
adamc@1066	4007 }
adamc@1066	4008 }
adamc@1066	4009 }
adamc@1066	4010
adamc@1065	4011 uw_write_header(ctx, "Location: ");
adamc@1065	4012 uw_write_header(ctx, url);
adamc@1065	4013 uw_write_header(ctx, "\r\n\r\n");
adam@1471	4014 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	4015
adamc@1065	4016 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	4017 cl->func(cl->arg);
adamc@1065	4018
adamc@1065	4019 ctx->cleanup_front = ctx->cleanup;
adamc@1065	4020
adamc@1065	4021 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	4022 }
adamc@874	4023
adamc@874	4024 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	4025 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	4026
adamc@874	4027 for (; *s; ++s) {
adamc@874	4028 if (s[0] == '\'') {
adamc@874	4029 *r++ = '\'';
adamc@874	4030 for (++s; *s; ++s) {
adamc@874	4031 if (s[0] == '\'') {
adamc@874	4032 *r++ = '\'';
adamc@874	4033 break;
adamc@874	4034 } else if (s[0] == '\\') {
adam@1467	4035 *r++ = '\\';
adam@1467	4036 *r++ = s[1];
adam@1467	4037 ++s;
adamc@874	4038 } else
adamc@874	4039 *r++ = s[0];
adamc@874	4040 }
adamc@874	4041 if (*s == 0) break;
adam@1467	4042 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	4043 s += 3;
adamc@874	4044 else
adamc@874	4045 *r++ = s[0];
adamc@874	4046 }
adamc@874	4047
adam@1467	4048 *r = 0;
adam@1467	4049 return ret;
adamc@874	4050 }
adamc@874	4051
adamc@922	4052 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4053 va_list ap;
adamc@922	4054 size_t len = 1;
adamc@922	4055 char s, r, *s2;
phurst@1981	4056
adamc@922	4057 va_start(ap, ctx);
adamc@922	4058 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4059 len += strlen(s);
adamc@922	4060 va_end(ap);
adamc@922	4061
adamc@922	4062 r = uw_malloc(ctx, len);
adamc@922	4063 va_start(ap, ctx);
adamc@922	4064 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4065 while (*s)
adamc@922	4066 s2++ = s++;
adamc@922	4067 va_end(ap);
adamc@922	4068 *s2 = 0;
adamc@922	4069
adamc@922	4070 return r;
adamc@922	4071 }
adamc@1006	4072
adam@1365	4073 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4074
adamc@1006	4075 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4076 uw_Basis_time r = { time(NULL) };
adam@1365	4077 return r;
adamc@1006	4078 }
adamc@1061	4079
adam@1369	4080 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4081 tm.seconds += n;
adam@1365	4082 return tm;
adamc@1138	4083 }
adamc@1138	4084
adam@1514	4085 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4086 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4087 }
adam@1514	4088
adam@1685	4089 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4090 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4091 }
adam@1685	4092
adam@1685	4093 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4094 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4095 }
adam@1685	4096
adam@1514	4097 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4098 return tm.seconds;
adam@1514	4099 }
adam@1514	4100
phurst@1971	4101 uw_Basis_time uw_Basis_fromDatetime(uw_context ctx, uw_Basis_int year, uw_Basis_int month, uw_Basis_int day, uw_Basis_int hour, uw_Basis_int minute, uw_Basis_int second) {
phurst@1971	4102 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4103 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4104 .tm_isdst = -1 };
phurst@1984	4105 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4106 return r;
phurst@1971	4107 }
phurst@1971	4108
phurst@1971	4109 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4110 struct tm tm;
phurst@1982	4111 localtime_r(&time.seconds, &tm);
phurst@1971	4112 return tm.tm_year + 1900;
phurst@1971	4113 }
phurst@1971	4114
phurst@1971	4115 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4116 struct tm tm;
phurst@1982	4117 localtime_r(&time.seconds, &tm);
phurst@1971	4118 return tm.tm_mon;
phurst@1971	4119 }
phurst@1971	4120
phurst@1971	4121 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4122 struct tm tm;
phurst@1982	4123 localtime_r(&time.seconds, &tm);
phurst@1971	4124 return tm.tm_mday;
phurst@1971	4125 }
phurst@1971	4126
phurst@1971	4127 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4128 struct tm tm;
phurst@1982	4129 localtime_r(&time.seconds, &tm);
phurst@1971	4130 return tm.tm_hour;
phurst@1971	4131 }
phurst@1971	4132
phurst@1971	4133 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4134 struct tm tm;
phurst@1982	4135 localtime_r(&time.seconds, &tm);
phurst@1971	4136 return tm.tm_min;
phurst@1971	4137 }
phurst@1971	4138
phurst@1971	4139 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4140 struct tm tm;
phurst@1982	4141 localtime_r(&time.seconds, &tm);
phurst@1971	4142 return tm.tm_sec;
phurst@1971	4143 }
phurst@1971	4144
phurst@1973	4145 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4146 struct tm tm;
phurst@1982	4147 localtime_r(&time.seconds, &tm);
phurst@1973	4148 return tm.tm_wday;
phurst@1973	4149 }
phurst@1971	4150
phurst@1971	4151
adamc@1061	4152 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4153 int i;
adamc@1061	4154
adamc@1061	4155 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4156 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4157 return ctx->globals[i].data;
adamc@1061	4158
adamc@1061	4159 return NULL;
adamc@1061	4160 }
adamc@1061	4161
adamc@1113	4162 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4163
adamc@1061	4164 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4165 int i;
adamc@1061	4166
adamc@1061	4167 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4168 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4169 if (ctx->globals[i].free)
adamc@1061	4170 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4171 ctx->globals[i].data = data;
adamc@1061	4172 ctx->globals[i].free = free;
adamc@1061	4173 return;
adamc@1061	4174 }
adamc@1089	4175
adamc@1113	4176 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4177 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4178
adamc@1061	4179 ++ctx->n_globals;
adamc@1061	4180 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4181 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4182 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4183 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4184 }
adamc@1061	4185
adamc@1061	4186 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4187 return !!isalnum((int)c);
adamc@1061	4188 }
adamc@1061	4189
adamc@1061	4190 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4191 return !!isalpha((int)c);
adamc@1061	4192 }
adamc@1061	4193
adamc@1061	4194 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4195 return !!isblank((int)c);
adamc@1061	4196 }
adamc@1061	4197
adamc@1061	4198 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4199 return !!iscntrl((int)c);
adamc@1061	4200 }
adamc@1061	4201
adamc@1061	4202 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4203 return !!isdigit((int)c);
adamc@1061	4204 }
adamc@1061	4205
adamc@1061	4206 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4207 return !!isgraph((int)c);
adamc@1061	4208 }
adamc@1061	4209
adamc@1061	4210 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4211 return !!islower((int)c);
adamc@1061	4212 }
adamc@1061	4213
adamc@1061	4214 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4215 return !!isprint((int)c);
adamc@1061	4216 }
adamc@1061	4217
adamc@1061	4218 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4219 return !!ispunct((int)c);
adamc@1061	4220 }
adamc@1061	4221
adamc@1061	4222 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4223 return !!isspace((int)c);
adamc@1061	4224 }
adamc@1063	4225
adamc@1061	4226 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4227 return !!isupper((int)c);
adamc@1061	4228 }
adamc@1061	4229
adamc@1061	4230 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4231 return !!isxdigit((int)c);
adamc@1061	4232 }
adamc@1061	4233
adamc@1061	4234 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4235 return tolower((int)c);
adamc@1061	4236 }
adamc@1061	4237
adamc@1061	4238 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4239 return toupper((int)c);
adamc@1061	4240 }
adamc@1066	4241
adamc@1128	4242 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4243 return (unsigned char)c;
adamc@1128	4244 }
adamc@1128	4245
adamc@1128	4246 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4247 return n;
adamc@1128	4248 }
adamc@1128	4249
adamc@1066	4250 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4251 return ctx->current_url;
adamc@1066	4252 }
adamc@1066	4253
adamc@1066	4254 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4255 ctx->current_url = s;
adamc@1066	4256 }
adamc@1114	4257
adamc@1114	4258 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4259 ctx->deadline = n;
adamc@1114	4260 }
adamc@1114	4261
adamc@1114	4262 void uw_check_deadline(uw_context ctx) {
adamc@1114	4263 if (uw_time > ctx->deadline)
adamc@1114	4264 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4265 }
adamc@1115	4266
adamc@1115	4267 size_t uw_database_max = SIZE_MAX;
adamc@1120	4268
adam@1389	4269 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143	4270 if (ctx->loggers->log_debug)
adam@2143	4271 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143	4272 else
adam@2143	4273 fprintf(stderr, "%s\n", s);
adam@1389	4274 return 0;
adam@1389	4275 }
adam@1389	4276
adamc@1120	4277 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4278 if (ctx->loggers->log_debug)
grrwlf@1997	4279 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4280 else
adam@1334	4281 fprintf(stderr, "%s\n", s);
adamc@1120	4282 return uw_unit_v;
adamc@1120	4283 }
adamc@1250	4284
adamc@1250	4285 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4286 int r = my_rand();
adam@2104	4287
adam@2104	4288 if (r >= 0)
adam@2104	4289 return r;
adam@1486	4290 else
adam@1486	4291 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4292 }
adam@1347	4293
adam@1347	4294 void uw_noPostBody(uw_context ctx) {
adam@1347	4295 ctx->hasPostBody = 0;
adam@1347	4296 }
adam@1347	4297
adam@1347	4298 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4299 ctx->hasPostBody = 1;
adam@1347	4300 ctx->postBody = pb;
adam@1347	4301 }
adam@1347	4302
adam@1347	4303 int uw_hasPostBody(uw_context ctx) {
adam@1347	4304 return ctx->hasPostBody;
adam@1347	4305 }
adam@1347	4306
adam@1386	4307 void uw_isPost(uw_context ctx) {
adam@1386	4308 ctx->isPost = 1;
adam@1386	4309 }
adam@1386	4310
adam@1386	4311 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4312 return ctx->isPost;
adam@1386	4313 }
adam@1386	4314
adam@1485	4315 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4316 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4317 }
adam@1485	4318
adam@1370	4319 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4320 ctx->queryString = s;
adam@1370	4321 }
adam@1370	4322
adam@1370	4323 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4324 return ctx->queryString;
adam@1370	4325 }
adam@1370	4326
adam@1347	4327 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4328 if (ctx->hasPostBody)
adam@1347	4329 return ctx->postBody;
adam@1347	4330 else
adam@1347	4331 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4332 }
adam@1349	4333
adam@1349	4334 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4335 int r = setjmp(ctx->jmp_buf);
adam@1349	4336
adam@1349	4337 if (r == 0) {
adam@1936	4338 uw_ensure_transaction(ctx);
adam@1418	4339
adam@1349	4340 callback(ctx);
adam@1349	4341 }
adam@1349	4342
adam@1349	4343 return r;
adam@1349	4344 }
adam@1360	4345
adam@1360	4346 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4347 char buf[14];
adam@1397	4348 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4349 }
adam@1365	4350
adam@1365	4351 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4352 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4353 }
adam@1365	4354
adam@1365	4355 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4356 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4357 }
adam@1365	4358
adam@1365	4359 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4360 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4361 }
adam@1365	4362
adam@1372	4363 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4364 struct tm stm = {};
adam@1375	4365 char *end = strchr(s, 0);
adam@1449	4366 stm.tm_isdst = -1;
adam@1375	4367
adam@1632	4368 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4369 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4370
kkallio@1448	4371 r->seconds = timegm(&stm);
adam@1373	4372 r->microseconds = 0;
adam@1373	4373
adam@1373	4374 return r;
adam@1374	4375 }
adam@1374	4376 else
adam@1373	4377 return NULL;
adam@1372	4378 }
adam@1407	4379
adam@1407	4380 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4381 int r = setjmp(ctx->jmp_buf);
adam@1407	4382
adam@1407	4383 if (ctx->app->on_error) {
adam@1407	4384 if (r == 0) {
adam@1936	4385 uw_ensure_transaction(ctx);
adam@1407	4386
adam@1409	4387 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4388 if (on_success[0])
adam@1409	4389 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4390 else
adam@1409	4391 uw_write_header(ctx, "Status: ");
adam@1409	4392 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4393 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4394 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4395 ctx->app->on_error(ctx, msg);
adam@1407	4396 uw_write(ctx, "</html>");
adam@1407	4397 }
adam@1407	4398
adam@1407	4399 return r;
adam@1407	4400 } else
adam@1407	4401 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4402 }
adam@1451	4403
adam@1451	4404 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4405 ctx->allowed_to_return_indirectly = 1;
adam@1451	4406 }
adam@1483	4407
adam@1556	4408 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4409 int len;
adam@1703	4410 char *r;
adam@1703	4411
adam@1703	4412 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4413 r = ctx->heap.front;
adam@1703	4414 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4415 ctx->heap.front += len+1;
adam@1703	4416 return r;
adam@1556	4417 }
adam@1571	4418
adam@1571	4419 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4420 return n;
adam@1571	4421 }
adam@1571	4422
adam@1571	4423 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4424 return ceil(n);
adam@1571	4425 }
adam@1571	4426
adam@1571	4427 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4428 return trunc(n);
adam@1571	4429 }
adam@1571	4430
adam@1571	4431 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4432 return round(n);
adam@1571	4433 }
adam@1755	4434
adam@1755	4435 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4436 char *p;
adam@1755	4437
adam@1755	4438 for (p = s; *p; ++p) {
adam@1755	4439 char c = *p;
adam@1801	4440 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4441 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4442 }
adam@1755	4443
adam@1755	4444 return s;
adam@1755	4445 }
adam@1755	4446
adam@1755	4447 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4448 char *p;
adam@1755	4449
adam@1755	4450 for (p = s; *p; ++p) {
adam@1755	4451 char c = *p;
adam@1801	4452 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4453 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4454 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4455 }
adam@1755	4456
adam@1755	4457 return s;
adam@1755	4458 }
adam@1755	4459
adam@1755	4460 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4461 char *p;
adam@1755	4462
adam@1755	4463 if (!*s)
adam@1755	4464 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4465
adam@1801	4466 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4467 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4468
adam@1755	4469 for (p = s; *p; ++p) {
adam@1755	4470 char c = *p;
adam@1801	4471 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4472 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4473 }
adam@1755	4474
adam@1755	4475 return s;
adam@1755	4476 }
adam@1787	4477
adam@1787	4478 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4479 return f.name;
adam@1787	4480 }
adam@1787	4481
adam@1787	4482 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4483 return f.value;
adam@1787	4484 }
adam@1787	4485
adam@1787	4486 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4487 return f.remaining;
adam@1787	4488 }
adam@1787	4489
adam@1787	4490 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4491 char *unurl;
adam@1787	4492 uw_Basis_postField *f;
adam@1787	4493
adam@1788	4494 if (!ctx->hasPostBody)
adam@1788	4495 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4496
adam@1788	4497 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4498 return NULL;
adam@1787	4499
adam@1787	4500 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4501 unurl = s;
adam@1787	4502 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4503 s = strchr(s, 0);
adam@1788	4504 if (!s)
adam@1788	4505 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4506 ++s;
adam@1788	4507 unurl = s;
adam@1788	4508 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4509 s = strchr(s, 0);
adam@1788	4510 if (!s)
adam@1788	4511 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4512 f->remaining = s+1;
adam@1787	4513
adam@1787	4514 return f;
adam@1787	4515 }
adam@2008	4516
adam@2008	4517 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4518 char *p = s;
adam@2008	4519
adam@2008	4520 for (; *p; ++p)
adam@2008	4521 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4522 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4523
adam@2008	4524 return s;
adam@2008	4525 }
adam@2073	4526
adam@2073	4527 int uw_remoteSock(uw_context ctx) {
adam@2073	4528 return ctx->remoteSock;
adam@2073	4529 }
adam@2073	4530
adam@2073	4531 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4532 ctx->remoteSock = sock;
adam@2073	4533 }
ziv@2234	4534
ziv@2234	4535
ziv@2234	4536 // Sqlcache
ziv@2234	4537
ziv@2250	4538 void uw_Sqlcache_listDelete(uw_Sqlcache_CacheList list, uw_Sqlcache_CacheEntry entry) {
ziv@2234	4539 if (list->first == entry) {
ziv@2234	4540 list->first = entry->next;
ziv@2234	4541 }
ziv@2234	4542 if (list->last == entry) {
ziv@2234	4543 list->last = entry->prev;
ziv@2234	4544 }
ziv@2234	4545 if (entry->prev) {
ziv@2234	4546 entry->prev->next = entry->next;
ziv@2234	4547 }
ziv@2234	4548 if (entry->next) {
ziv@2234	4549 entry->next->prev = entry->prev;
ziv@2234	4550 }
ziv@2234	4551 entry->prev = NULL;
ziv@2234	4552 entry->next = NULL;
ziv@2234	4553 --(list->size);
ziv@2234	4554 }
ziv@2234	4555
ziv@2250	4556 void uw_Sqlcache_listAdd(uw_Sqlcache_CacheList list, uw_Sqlcache_CacheEntry entry) {
ziv@2234	4557 if (list->last) {
ziv@2234	4558 list->last->next = entry;
ziv@2234	4559 entry->prev = list->last;
ziv@2234	4560 list->last = entry;
ziv@2234	4561 } else {
ziv@2234	4562 list->first = entry;
ziv@2234	4563 list->last = entry;
ziv@2234	4564 }
ziv@2234	4565 ++(list->size);
ziv@2234	4566 }
ziv@2234	4567
ziv@2250	4568 void uw_Sqlcache_listBump(uw_Sqlcache_CacheList list, uw_Sqlcache_CacheEntry entry) {
ziv@2250	4569 uw_Sqlcache_listDelete(list, entry);
ziv@2250	4570 uw_Sqlcache_listAdd(list, entry);
ziv@2234	4571 }
ziv@2234	4572
ziv@2234	4573 // TODO: deal with time properly.
ziv@2234	4574
ziv@2250	4575 time_t uw_Sqlcache_getTimeNow() {
ziv@2234	4576 return time(NULL);
ziv@2234	4577 }
ziv@2234	4578
ziv@2250	4579 time_t uw_Sqlcache_timeMax(time_t x, time_t y) {
ziv@2234	4580 return difftime(x, y) > 0 ? x : y;
ziv@2234	4581 }
ziv@2234	4582
ziv@2262	4583 void uw_Sqlcache_free(uw_Sqlcache_CacheValue *value) {
ziv@2234	4584 if (value) {
ziv@2234	4585 free(value->result);
ziv@2234	4586 free(value->output);
ziv@2234	4587 free(value);
ziv@2234	4588 }
ziv@2234	4589 }
ziv@2234	4590
ziv@2250	4591 void uw_Sqlcache_delete(uw_Sqlcache_Cache cache, uw_Sqlcache_CacheEntry entry) {
ziv@2250	4592 //uw_Sqlcache_listUw_Sqlcache_Delete(cache->lru, entry);
ziv@2234	4593 HASH_DELETE(hh, cache->table, entry);
ziv@2262	4594 uw_Sqlcache_free(entry->value);
ziv@2234	4595 free(entry->key);
ziv@2234	4596 free(entry);
ziv@2234	4597 }
ziv@2234	4598
ziv@2250	4599 uw_Sqlcache_CacheValue uw_Sqlcache_checkHelper(uw_Sqlcache_Cache cache, char **keys, int timeInvalid) {
ziv@2234	4600 char *key = keys[cache->height];
ziv@2250	4601 uw_Sqlcache_CacheEntry *entry;
ziv@2234	4602 HASH_FIND(hh, cache->table, key, strlen(key), entry);
ziv@2250	4603 timeInvalid = uw_Sqlcache_timeMax(timeInvalid, cache->timeInvalid);
ziv@2234	4604 if (entry && difftime(entry->timeValid, timeInvalid) > 0) {
ziv@2234	4605 if (cache->height == 0) {
ziv@2234	4606 // At height 0, entry->value is the desired value.
ziv@2250	4607 //uw_Sqlcache_listBump(cache->lru, entry);
ziv@2234	4608 return entry->value;
ziv@2234	4609 } else {
ziv@2234	4610 // At height n+1, entry->value is a pointer to a cache at heignt n.
ziv@2250	4611 return uw_Sqlcache_checkHelper(entry->value, keys, timeInvalid);
ziv@2234	4612 }
ziv@2234	4613 } else {
ziv@2234	4614 return NULL;
ziv@2234	4615 }
ziv@2234	4616 }
ziv@2234	4617
ziv@2250	4618 uw_Sqlcache_CacheValue uw_Sqlcache_check(uw_Sqlcache_Cache cache, char **keys) {
ziv@2250	4619 return uw_Sqlcache_checkHelper(cache, keys, 0);
ziv@2250	4620 }
ziv@2250	4621
ziv@2250	4622 void uw_Sqlcache_storeHelper(uw_Sqlcache_Cache cache, char keys, uw_Sqlcache_CacheValue value, int timeNow) {
ziv@2250	4623 uw_Sqlcache_CacheEntry *entry;
ziv@2234	4624 char *key = keys[cache->height];
ziv@2234	4625 HASH_FIND(hh, cache->table, key, strlen(key), entry);
ziv@2234	4626 if (!entry) {
ziv@2250	4627 entry = malloc(sizeof(uw_Sqlcache_CacheEntry));
ziv@2234	4628 entry->key = strdup(key);
ziv@2234	4629 entry->value = NULL;
ziv@2234	4630 HASH_ADD_KEYPTR(hh, cache->table, entry->key, strlen(entry->key), entry);
ziv@2234	4631 }
ziv@2234	4632 entry->timeValid = timeNow;
ziv@2234	4633 if (cache->height == 0) {
ziv@2250	4634 //uw_Sqlcache_listAdd(cache->lru, entry);
ziv@2262	4635 uw_Sqlcache_free(entry->value);
ziv@2234	4636 entry->value = value;
ziv@2234	4637 //if (cache->lru->size > MAX_SIZE) {
ziv@2250	4638 //uw_Sqlcache_delete(cache, cache->lru->first);
ziv@2234	4639 // TODO: return flushed value.
ziv@2234	4640 //}
ziv@2234	4641 } else {
ziv@2234	4642 if (!entry->value) {
ziv@2250	4643 uw_Sqlcache_Cache *newuw_Sqlcache_Cache = malloc(sizeof(uw_Sqlcache_Cache));
ziv@2250	4644 newuw_Sqlcache_Cache->table = NULL;
ziv@2250	4645 newuw_Sqlcache_Cache->timeInvalid = timeNow;
ziv@2250	4646 newuw_Sqlcache_Cache->lru = cache->lru;
ziv@2250	4647 newuw_Sqlcache_Cache->height = cache->height - 1;
ziv@2250	4648 entry->value = newuw_Sqlcache_Cache;
ziv@2234	4649 }
ziv@2250	4650 uw_Sqlcache_storeHelper(entry->value, keys, value, timeNow);
ziv@2234	4651 }
ziv@2234	4652 }
ziv@2234	4653
ziv@2250	4654 void uw_Sqlcache_store(uw_Sqlcache_Cache cache, char keys, uw_Sqlcache_CacheValue value) {
ziv@2250	4655 uw_Sqlcache_storeHelper(cache, keys, value, uw_Sqlcache_getTimeNow());
ziv@2250	4656 }
ziv@2250	4657
ziv@2250	4658 void uw_Sqlcache_flushHelper(uw_Sqlcache_Cache cache, char *keys, int timeNow) {
ziv@2250	4659 uw_Sqlcache_CacheEntry *entry;
ziv@2234	4660 char *key = keys[cache->height];
ziv@2234	4661 if (key) {
ziv@2234	4662 HASH_FIND(hh, cache->table, key, strlen(key), entry);
ziv@2234	4663 if (entry) {
ziv@2234	4664 if (cache->height == 0) {
ziv@2250	4665 uw_Sqlcache_delete(cache, entry);
ziv@2234	4666 } else {
ziv@2250	4667 uw_Sqlcache_flushHelper(entry->value, keys, timeNow);
ziv@2234	4668 }
ziv@2234	4669 }
ziv@2234	4670 } else {
ziv@2234	4671 // Null key means invalidate the entire subtree.
ziv@2234	4672 cache->timeInvalid = timeNow;
ziv@2234	4673 }
ziv@2234	4674 }
ziv@2234	4675
ziv@2250	4676 void uw_Sqlcache_flush(uw_Sqlcache_Cache cache, char *keys) {
ziv@2250	4677 uw_Sqlcache_flushHelper(cache, keys, uw_Sqlcache_getTimeNow());
ziv@2250	4678 }

Mercurial > urweb

annotate src/c/urweb.c @ 2270:1e3ba868f8bf