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

annotate src/c/urweb.c @ 2280:985c8016b592

Merge.

author	Ziv Scully <ziv@mit.edu>
date	Thu, 12 Nov 2015 08:46:51 -0500
parents	32a407902d3b 14c45a0b6362
children	75cb60a7f6f1

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
adam@2177	823 void uw_try_reconnecting_and_restarting(uw_context ctx) {
adam@2177	824 uw_try_reconnecting(ctx);
adam@2178	825 uw_error(ctx, BOUNDED_RETRY, "Restarting transaction after fixing database connection");
adam@2176	826 }
adam@2176	827
adam@1931	828 void uw_ensure_transaction(uw_context ctx) {
adam@2056	829 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@2176	830 if (!ctx->db \|\| ctx->app->db_begin(ctx, ctx->could_write_db)) {
adam@2176	831 uw_try_reconnecting(ctx);
adam@2176	832
adam@2176	833 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adam@2176	834 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@2176	835 }
adam@2176	836
adam@1931	837 ctx->transaction_started = 1;
adam@2178	838 } else if (ctx->at_most_one_query && !ctx->db)
adam@2178	839 uw_try_reconnecting(ctx);
adamc@671	840 }
adamc@671	841
adamc@772	842 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	843 if (ctx->client == NULL)
adamc@682	844 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	845
adamc@682	846 return ctx->client->id;
adamc@682	847 }
adamc@682	848
adamc@425	849 void uw_pop_cleanup(uw_context ctx) {
adamc@425	850 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	851 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	852
adamc@425	853 --ctx->cleanup_front;
adamc@425	854 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	855 }
adamc@425	856
adamc@311	857 char *uw_error_message(uw_context ctx) {
adamc@167	858 return ctx->error_message;
adamc@167	859 }
adamc@167	860
adamc@1115	861 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	862 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	863 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	864 }
adamc@1115	865
adamc@759	866 static input *INP(uw_context ctx) {
adamc@759	867 if (ctx->cur_container == NULL)
adamc@759	868 return ctx->inputs;
adamc@759	869 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	870 return ctx->cur_container->data.subform.fields;
adamc@759	871 else if (ctx->cur_container->kind == ENTRY)
adamc@759	872 return ctx->cur_container->data.entry.fields;
adamc@759	873 else
adamc@760	874 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	875 }
adamc@759	876
adamc@760	877 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	878 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	879 *ptr += new_start - old_start;
adamc@760	880 }
adamc@760	881
adamc@760	882 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	883 switch (x->kind) {
adamc@759	884 case SUBFORM:
adamc@760	885 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	886 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	887 break;
adamc@759	888 case SUBFORMS:
adamc@760	889 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	890 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	891 break;
adamc@759	892 case ENTRY:
adamc@760	893 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	894 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	895 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	896 break;
adamc@1134	897 default:
adamc@1134	898 break;
phurst@1981	899 }
adamc@759	900 }
adamc@759	901
adamc@1113	902 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	903
adamc@759	904 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	905 size_t i;
adamc@759	906 input *r;
adamc@759	907
adamc@759	908 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	909 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	910 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	911
adamc@759	912 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	913
adamc@760	914 if (ctx->subinputs != new_subinputs) {
adamc@760	915 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	916 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	917 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	918 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	919
adamc@760	920 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	921
adamc@760	922 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	923 ctx->subinputs = new_subinputs;
adamc@760	924 }
adamc@759	925 }
adamc@759	926
adamc@759	927 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	928
adamc@759	929 for (i = 0; i < len; ++i)
adam@1474	930 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	931
adamc@759	932 return r;
adamc@759	933 }
adamc@756	934
adamc@801	935 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	936 //printf("Input name %s\n", name);
adamc@1038	937
adamc@756	938 if (!strcasecmp(name, ".b")) {
adamc@1094	939 int n = ctx->app->input_num(value);
adamc@756	940 input *inps;
adamc@756	941
adamc@801	942 if (n < 0) {
adam@1444	943 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	944 return -1;
adamc@801	945 }
adamc@801	946
adamc@1094	947 if (n >= ctx->app->inputs_len) {
adam@1444	948 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	949 return -1;
adamc@801	950 }
adamc@756	951
adamc@1094	952 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	953
adamc@759	954 INP(ctx)[n].kind = SUBFORM;
adamc@759	955 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	956 INP(ctx)[n].data.subform.fields = inps;
adamc@759	957 ctx->cur_container = &INP(ctx)[n];
adamc@756	958 } else if (!strcasecmp(name, ".e")) {
adamc@756	959 input *tmp;
adamc@756	960
adamc@801	961 if (ctx->cur_container == NULL) {
adamc@801	962 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	963 return -1;
adamc@801	964 }
adamc@756	965
adamc@759	966 tmp = ctx->cur_container;
adamc@759	967 switch (tmp->kind) {
adamc@759	968 case SUBFORM:
adamc@759	969 ctx->cur_container = tmp->data.subform.parent;
adamc@759	970 tmp->data.subform.parent = NULL;
adamc@759	971 break;
adamc@759	972 case SUBFORMS:
adamc@759	973 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	974 tmp->data.subforms.parent = NULL;
adamc@759	975 break;
adamc@759	976 case ENTRY:
adamc@759	977 ctx->cur_container = tmp->data.entry.parent;
adamc@759	978 break;
adamc@759	979 default:
adamc@801	980 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	981 return -1;
adamc@759	982 }
adamc@759	983 } else if (!strcasecmp(name, ".s")) {
adamc@1094	984 int n = ctx->app->input_num(value);
adamc@759	985
adamc@801	986 if (n < 0) {
adam@1444	987 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	988 return -1;
adamc@801	989 }
adamc@801	990
adamc@1094	991 if (n >= ctx->app->inputs_len) {
adam@1444	992 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	993 return -1;
adamc@801	994 }
adamc@759	995
adamc@759	996 INP(ctx)[n].kind = SUBFORMS;
adamc@759	997 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	998 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	999 ctx->cur_container = &INP(ctx)[n];
adamc@759	1000 } else if (!strcasecmp(name, ".i")) {
adamc@759	1001 input *inps;
adamc@759	1002
adamc@801	1003 if (!ctx->cur_container) {
adamc@801	1004 uw_set_error(ctx, "New entry without container");
adamc@801	1005 return -1;
adamc@801	1006 }
adamc@801	1007
adamc@801	1008 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	1009 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	1010 return -1;
adamc@801	1011 }
adamc@759	1012
adamc@1094	1013 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	1014
adamc@759	1015 inps->kind = ENTRY;
adamc@759	1016 inps->data.entry.parent = ctx->cur_container;
adamc@759	1017 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	1018 ctx->cur_container->data.subforms.entries = inps;
adamc@759	1019
adamc@759	1020 inps->data.entry.fields = inps+1;
adamc@759	1021 ctx->cur_container = inps;
adamc@756	1022 } else {
adamc@1094	1023 int n = ctx->app->input_num(name);
adamc@756	1024
adam@1384	1025 if (n < 0)
adam@1384	1026 return 0;
adamc@801	1027
adamc@1094	1028 if (n >= ctx->app->inputs_len) {
adam@1444	1029 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1030 return -1;
adamc@801	1031 }
adamc@756	1032
adamc@756	1033 INP(ctx)[n].kind = NORMAL;
adamc@756	1034 INP(ctx)[n].data.normal = value;
adamc@756	1035 }
adamc@801	1036
adamc@801	1037 return 0;
adamc@144	1038 }
adamc@144	1039
adamc@311	1040 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1041 if (n < 0)
adamc@311	1042 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1043 if (n >= ctx->app->inputs_len)
adamc@311	1044 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1045
adamc@756	1046 switch (INP(ctx)[n].kind) {
adamc@737	1047 case UNSET:
adamc@737	1048 return NULL;
adamc@739	1049 case FIL:
adamc@739	1050 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1051 case SUBFORM:
adamc@756	1052 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1053 case SUBFORMS:
adamc@759	1054 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1055 case ENTRY:
adamc@759	1056 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1057 case NORMAL:
adamc@756	1058 return INP(ctx)[n].data.normal;
adamc@737	1059 default:
adamc@737	1060 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1061 }
adamc@138	1062 }
adamc@138	1063
adamc@311	1064 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1065 if (n < 0)
adamc@311	1066 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1067 if (n >= ctx->app->inputs_len)
adamc@311	1068 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1069
adamc@756	1070 switch (INP(ctx)[n].kind) {
adamc@737	1071 case UNSET:
adamc@737	1072 return "";
adamc@739	1073 case FIL:
adamc@739	1074 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1075 case SUBFORM:
adamc@756	1076 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1077 case SUBFORMS:
adamc@759	1078 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1079 case ENTRY:
adamc@759	1080 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1081 case NORMAL:
adamc@756	1082 return INP(ctx)[n].data.normal;
adamc@737	1083 default:
adamc@737	1084 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1085 }
adamc@737	1086 }
adamc@737	1087
adamc@801	1088 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1089 int n = ctx->app->input_num(name);
adamc@737	1090
adamc@801	1091 if (n < 0) {
adam@2054	1092 uw_set_error(ctx, "Bad file input name");
adamc@801	1093 return -1;
adamc@801	1094 }
adamc@801	1095
adamc@1094	1096 if (n >= ctx->app->inputs_len) {
adam@2054	1097 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1098 return -1;
adamc@801	1099 }
adamc@737	1100
adamc@739	1101 ctx->inputs[n].kind = FIL;
adamc@739	1102 ctx->inputs[n].data.file = f;
adamc@801	1103
adamc@801	1104 return 0;
adamc@737	1105 }
adamc@737	1106
adamc@739	1107 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1108
adamc@739	1109 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1110 if (n < 0)
adamc@737	1111 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1112 if (n >= ctx->app->inputs_len)
adamc@737	1113 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1114
adamc@756	1115 switch (INP(ctx)[n].kind) {
adamc@737	1116 case UNSET:
adamc@737	1117 {
adamc@739	1118 char *data = uw_malloc(ctx, 0);
adamc@740	1119 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1120 return f;
adamc@737	1121 }
adamc@739	1122 case FIL:
adamc@756	1123 return INP(ctx)[n].data.file;
adamc@737	1124 case NORMAL:
adamc@737	1125 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1126 case SUBFORM:
adamc@756	1127 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1128 case SUBFORMS:
adamc@759	1129 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1130 case ENTRY:
adamc@759	1131 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1132 default:
adamc@737	1133 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1134 }
adamc@190	1135 }
adamc@190	1136
adamc@756	1137 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1138 if (n < 0)
adamc@756	1139 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1140 if (n >= ctx->app->inputs_len)
adamc@756	1141 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1142
adamc@756	1143 switch (INP(ctx)[n].kind) {
adamc@756	1144 case UNSET:
adamc@756	1145 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1146 case FIL:
adamc@756	1147 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1148 case NORMAL:
adamc@756	1149 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1150 case SUBFORMS:
adamc@759	1151 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1152 case ENTRY:
adamc@759	1153 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1154 case SUBFORM:
adamc@759	1155 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1156 ctx->cur_container = &INP(ctx)[n];
adamc@756	1157 return;
adamc@756	1158 default:
adamc@756	1159 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1160 }
adamc@756	1161 }
adamc@756	1162
adamc@756	1163 void uw_leave_subform(uw_context ctx) {
adamc@756	1164 input *tmp;
adamc@756	1165
adamc@759	1166 if (ctx->cur_container == NULL)
adamc@756	1167 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1168
adamc@759	1169 tmp = ctx->cur_container;
adamc@759	1170 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1171 tmp->data.subform.parent = NULL;
adamc@759	1172 }
adamc@759	1173
adamc@759	1174 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1175 input *inps;
adamc@759	1176
adamc@759	1177 if (n < 0)
adamc@759	1178 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1179 if (n >= ctx->app->inputs_len)
adamc@759	1180 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1181
adamc@759	1182 switch (INP(ctx)[n].kind) {
adamc@759	1183 case UNSET:
adamc@759	1184 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1185 case FIL:
adamc@759	1186 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1187 case NORMAL:
adamc@759	1188 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1189 case SUBFORM:
adamc@759	1190 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1191 case ENTRY:
adamc@759	1192 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1193 case SUBFORMS:
adamc@759	1194 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1195 if (inps) {
adamc@759	1196 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1197 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1198 return 1;
adamc@759	1199 } else
adamc@759	1200 return 0;
adamc@759	1201 default:
adamc@759	1202 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1203 }
adamc@759	1204 }
adamc@759	1205
adamc@759	1206 int uw_next_entry(uw_context ctx) {
adamc@759	1207 if (ctx->cur_container == NULL)
adamc@759	1208 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1209
adamc@759	1210 switch (ctx->cur_container->kind) {
adamc@759	1211 case UNSET:
adamc@759	1212 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1213 case FIL:
adamc@759	1214 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1215 case NORMAL:
adamc@759	1216 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1217 case SUBFORM:
adamc@759	1218 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1219 case SUBFORMS:
adamc@759	1220 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1221 case ENTRY:
adamc@759	1222 if (ctx->cur_container->data.entry.next) {
adamc@759	1223 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1224 return 1;
adamc@759	1225 } else {
adamc@759	1226 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1227 return 0;
adamc@759	1228 }
adamc@759	1229 default:
adamc@759	1230 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1231 }
adamc@756	1232 }
adamc@756	1233
adamc@643	1234 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1235 ctx->script_header = s;
adamc@643	1236 }
adamc@643	1237
adamc@1094	1238 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1239 return ctx->app->url_prefix;
adamc@667	1240 }
adamc@667	1241
adamc@693	1242 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1243 ctx->needs_push = n;
adamc@693	1244 }
adamc@693	1245
adamc@736	1246 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1247 ctx->needs_sig = n;
adamc@736	1248 }
adamc@736	1249
adam@1936	1250 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1251 ctx->could_write_db = n;
adam@1936	1252 }
adam@1936	1253
adam@2056	1254 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1255 ctx->at_most_one_query = n;
adam@2056	1256 }
adam@2056	1257
adamc@667	1258
adam@1369	1259 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1260 if (b->back - b->front < extra) {
adamc@666	1261 size_t desired = b->front - b->start + extra, next;
adamc@136	1262 char *new_heap;
adamc@136	1263
adamc@666	1264 next = b->back - b->start;
adamc@317	1265 if (next == 0)
adamc@317	1266 next = 1;
adamc@317	1267 for (; next < desired; next *= 2);
adamc@136	1268
adamc@1134	1269 if (next > b->max) {
adamc@1113	1270 if (desired <= b->max)
adamc@1113	1271 next = desired;
adamc@1113	1272 else
adamc@1113	1273 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1274 }
adamc@1113	1275
adamc@666	1276 new_heap = realloc(b->start, next);
adamc@666	1277 b->front = new_heap + (b->front - b->start);
adamc@666	1278 b->back = new_heap + next;
adamc@136	1279
adamc@667	1280 if (new_heap != b->start) {
adamc@666	1281 b->start = new_heap;
adam@1389	1282 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1283 }
adamc@136	1284
adamc@666	1285 b->start = new_heap;
adamc@136	1286 }
adamc@136	1287 }
adamc@136	1288
adamc@832	1289 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1290 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1291 }
adamc@666	1292
adamc@832	1293 char *uw_heap_front(uw_context ctx) {
adamc@832	1294 return ctx->heap.front;
adamc@832	1295 }
adamc@832	1296
adamc@832	1297 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1298 ctx->heap.front = fr;
adamc@832	1299 }
adamc@832	1300
adam@1782	1301 void uw_begin_initializing(uw_context ctx) {
adam@1782	1302 ctx->amInitializing = 1;
adam@1782	1303 }
adam@1782	1304
adam@1782	1305 void uw_end_initializing(uw_context ctx) {
adam@1782	1306 ctx->amInitializing = 0;
adam@1782	1307 }
adam@1782	1308
adam@2013	1309 static void align_heap(uw_context ctx) {
adam@2013	1310 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1311
adam@2017	1312 if (posn % sizeof(void *) != 0) {
adam@2017	1313 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1314 uw_check_heap(ctx, bump);
adam@2013	1315 ctx->heap.front += bump;
adam@2013	1316 }
adam@2013	1317 }
adam@2013	1318
adamc@311	1319 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1320 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1321 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1322 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1323 // return.
adam@2013	1324
adamc@136	1325 void *result;
adamc@136	1326
adam@1782	1327 if (ctx->amInitializing) {
adam@2017	1328 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1329
adam@2013	1330 if (!error)
adam@1782	1331 return result;
adam@1782	1332 else
adam@2013	1333 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1334 } else {
adam@2013	1335 align_heap(ctx);
adam@2013	1336
adam@1782	1337 uw_check_heap(ctx, len);
adam@1782	1338
adam@1782	1339 result = ctx->heap.front;
adam@1782	1340 ctx->heap.front += len;
adam@1782	1341 return result;
adam@1782	1342 }
adamc@117	1343 }
adamc@117	1344
adamc@323	1345 void uw_begin_region(uw_context ctx) {
adam@2013	1346 align_heap(ctx);
adam@2013	1347
adamc@666	1348 regions r = (regions ) ctx->heap.front;
adamc@323	1349
adamc@323	1350 uw_check_heap(ctx, sizeof(regions));
adamc@323	1351
adamc@666	1352 ctx->heap.front += sizeof(regions);
adamc@323	1353
adamc@323	1354 r->next = ctx->regions;
adamc@323	1355 ctx->regions = r;
adamc@323	1356 }
adamc@323	1357
adamc@323	1358 void uw_end_region(uw_context ctx) {
adamc@323	1359 regions *r = ctx->regions;
adamc@323	1360
adamc@323	1361 if (r == NULL)
adamc@323	1362 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1363
adamc@666	1364 ctx->heap.front = (char *) r;
adamc@323	1365 ctx->regions = r->next;
adamc@323	1366 }
adamc@323	1367
adamc@324	1368 void uw_memstats(uw_context ctx) {
adam@1369	1369 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1370 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1371 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1372 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1373 }
adamc@324	1374
adam@1915	1375 int uw_pagelen(uw_context ctx) {
adam@1915	1376 return ctx->page.front - ctx->page.start;
adam@1915	1377 }
adam@1915	1378
adamc@311	1379 int uw_send(uw_context ctx, int sock) {
adam@1949	1380 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1381
adam@1949	1382 if (ctx->output_buffer_size < target_length) {
adam@1949	1383 do {
adam@1949	1384 ctx->output_buffer_size *= 2;
adam@1949	1385 } while (ctx->output_buffer_size < target_length);
adam@1949	1386 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1387 }
adam@1949	1388
adam@1949	1389 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1390 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1391 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1392
adam@1949	1393 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1394 }
adamc@462	1395
adamc@856	1396 int uw_print(uw_context ctx, int fd) {
adamc@856	1397 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1398
adamc@856	1399 if (n < 0)
adamc@856	1400 return n;
adamc@856	1401
adamc@856	1402 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1403
adamc@856	1404 if (n < 0)
adamc@856	1405 return n;
adamc@856	1406
adamc@856	1407 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1408 }
adamc@856	1409
adamc@860	1410 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1411 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1412
adamc@860	1413 if (n < 0)
adamc@860	1414 return n;
adamc@860	1415
adamc@860	1416 n = output(data, "\r\n", 2);
adamc@860	1417
adamc@860	1418 if (n < 0)
adamc@860	1419 return n;
adamc@860	1420
adamc@860	1421 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1422 }
adamc@860	1423
adamc@462	1424 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1425 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1426 }
adamc@462	1427
adamc@462	1428 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1429 int len = strlen(s);
adamc@462	1430
adamc@462	1431 uw_check_headers(ctx, len + 1);
adamc@666	1432 strcpy(ctx->outHeaders.front, s);
adamc@666	1433 ctx->outHeaders.front += len;
adamc@562	1434 }
adamc@562	1435
adam@1934	1436 int uw_has_contentLength(uw_context ctx) {
adam@1934	1437 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1438 }
adam@1934	1439
adamc@1110	1440 void uw_clear_headers(uw_context ctx) {
adam@1369	1441 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1442 }
adamc@1110	1443
adam@1932	1444 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1445 uw_buffer_reset(&ctx->page);
adam@1932	1446 }
adam@1932	1447
adamc@562	1448 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1449 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1450 }
adamc@562	1451
adamc@562	1452 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1453 int len = strlen(s);
adamc@562	1454
adamc@562	1455 uw_check_script(ctx, len + 1);
adamc@666	1456 strcpy(ctx->script.front, s);
adamc@666	1457 ctx->script.front += len;
adamc@562	1458 }
adamc@562	1459
adam@1446	1460 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1461 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1462 uw_write_script(ctx, "sig=\"");
adam@1671	1463 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1464 uw_write_script(ctx, "\";");
adam@1671	1465 }
adam@1671	1466
adam@1446	1467 return ctx->script.start;
adam@1446	1468 }
adam@1446	1469
adamc@695	1470 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1471 if (s[0] == 0)
adamc@695	1472 return "";
adamc@695	1473 else {
adamc@695	1474 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1475 sprintf(r, " onload='%s'", s);
adamc@695	1476 return r;
adamc@695	1477 }
adamc@695	1478 }
adamc@695	1479
adamc@1042	1480 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1481 if (ctx->script_header[0] == 0)
adamc@1042	1482 return "";
adamc@1042	1483 else {
vshabanoff@1763	1484 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1485 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1486 return r;
adamc@1042	1487 }
adamc@1042	1488 }
adamc@1042	1489
adamc@694	1490 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1491 if (ctx->client == NULL) {
adamc@736	1492 if (ctx->needs_sig) {
adamc@1094	1493 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1494 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1495 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1496 return r;
adamc@736	1497 }
adamc@736	1498 else
adamc@736	1499 return "";
adamc@736	1500 } else {
adamc@1094	1501 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1502 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1503 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1504 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1505 (ctx->isPost ? "true" : "false"),
adamc@682	1506 ctx->client->id,
adamc@682	1507 ctx->client->pass,
adamc@1094	1508 ctx->app->url_prefix,
adamc@1094	1509 ctx->app->timeout,
adamc@736	1510 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1511 sig,
adamc@736	1512 ctx->needs_sig ? "\";" : "");
adamc@679	1513 return r;
adamc@668	1514 }
adamc@667	1515 }
adamc@667	1516
adamc@574	1517 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1518 char r, s2;
adamc@574	1519
adam@1446	1520 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1521
adamc@666	1522 r = s2 = ctx->heap.front;
adamc@574	1523 *s2++ = '"';
adamc@574	1524
adamc@574	1525 for (; *s; s++) {
adam@1286	1526 unsigned char c = *s;
adamc@574	1527
adamc@574	1528 switch (c) {
adamc@574	1529 case '"':
adamc@574	1530 strcpy(s2, "\\\"");
adamc@574	1531 s2 += 2;
adamc@574	1532 break;
adamc@1027	1533 case '\'':
adamc@1027	1534 strcpy(s2, "\\047");
adamc@1027	1535 s2 += 4;
adamc@1027	1536 break;
adamc@574	1537 case '\\':
adamc@574	1538 strcpy(s2, "\\\\");
adamc@574	1539 s2 += 2;
adamc@574	1540 break;
adam@1457	1541 case '<':
adam@1457	1542 strcpy(s2, "\\074");
adam@1457	1543 s2 += 4;
adam@1457	1544 break;
adamc@574	1545 default:
adam@1286	1546 if (isprint((int)c) \|\| c >= 128)
adamc@574	1547 *s2++ = c;
adamc@574	1548 else {
adam@1429	1549 sprintf(s2, "\\%03o", c);
adamc@574	1550 s2 += 4;
adamc@574	1551 }
adamc@574	1552 }
adamc@574	1553 }
adamc@574	1554
adamc@574	1555 strcpy(s2, "\"");
adamc@910	1556 ctx->heap.front = s2 + 2;
adamc@574	1557 return r;
adamc@574	1558 }
adamc@574	1559
adam@1286	1560 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1561 unsigned char c = c1;
adamc@1025	1562 char r, s2;
adamc@1025	1563
adam@1446	1564 uw_check_heap(ctx, 7);
adamc@1025	1565
adamc@1025	1566 r = s2 = ctx->heap.front;
adamc@1025	1567 *s2++ = '"';
adamc@1025	1568
adamc@1025	1569 switch (c) {
adamc@1025	1570 case '"':
adamc@1025	1571 strcpy(s2, "\\\"");
adamc@1025	1572 s2 += 2;
adamc@1025	1573 break;
adamc@1027	1574 case '\'':
adamc@1027	1575 strcpy(s2, "\\047");
adamc@1027	1576 s2 += 4;
adamc@1027	1577 break;
adamc@1025	1578 case '\\':
adamc@1025	1579 strcpy(s2, "\\\\");
adamc@1025	1580 s2 += 2;
adamc@1025	1581 break;
adam@1457	1582 case '<':
adam@1457	1583 strcpy(s2, "\\074");
adam@1457	1584 s2 += 4;
adam@1457	1585 break;
adamc@1025	1586 default:
adam@1286	1587 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1588 *s2++ = c;
adamc@1025	1589 else {
adam@1429	1590 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1591 s2 += 4;
adamc@1025	1592 }
adamc@1025	1593 }
adamc@1025	1594
adamc@1025	1595 strcpy(s2, "\"");
adamc@1025	1596 ctx->heap.front = s2 + 2;
adamc@1025	1597 return r;
adamc@1025	1598 }
adamc@1025	1599
adamc@574	1600 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1601 char r, s2;
adamc@574	1602
adam@1446	1603 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1604
adamc@666	1605 r = s2 = ctx->script.front;
adamc@574	1606 *s2++ = '"';
adamc@574	1607
adamc@574	1608 for (; *s; s++) {
adam@1286	1609 unsigned char c = *s;
adamc@574	1610
adamc@574	1611 switch (c) {
adamc@577	1612 case '\'':
adamc@1027	1613 strcpy(s2, "\\");
adamc@574	1614 s2 += 2;
adamc@574	1615 break;
adamc@574	1616 case '\\':
adamc@574	1617 strcpy(s2, "\\\\");
adamc@574	1618 s2 += 2;
adamc@574	1619 break;
adam@1457	1620 case '<':
adam@1457	1621 strcpy(s2, "\\074");
adam@1457	1622 s2 += 4;
adam@1457	1623 break;
adamc@574	1624 default:
adam@1286	1625 if (isprint((int)c) \|\| c >= 128)
adamc@574	1626 *s2++ = c;
adamc@574	1627 else {
adam@1429	1628 sprintf(s2, "\\%03o", c);
adamc@574	1629 s2 += 4;
adamc@574	1630 }
adamc@574	1631 }
adamc@574	1632 }
adamc@574	1633
adamc@574	1634 strcpy(s2, "\"");
adamc@666	1635 ctx->script.front = s2 + 1;
adamc@574	1636 return r;
adamc@574	1637 }
adamc@574	1638
adamc@682	1639 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1640 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1641 return "null";
adamc@682	1642 else {
adamc@682	1643 int len;
adamc@682	1644 char *r;
adamc@682	1645
adamc@682	1646 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1647 r = ctx->heap.front;
adamc@682	1648 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1649 ctx->heap.front += len+1;
adamc@682	1650 return r;
adamc@682	1651 }
adamc@682	1652 }
adamc@682	1653
adam@1446	1654 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1655 int len;
adamc@577	1656 size_t s_len = strlen(s);
adamc@562	1657
grrwlf@1998	1658 if(ctx->id < 0)
grrwlf@1998	1659 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1660
adam@1446	1661 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1662 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1663 ctx->script.front += len;
adamc@666	1664 strcpy(ctx->script.front, s);
adamc@666	1665 ctx->script.front += s_len;
adamc@970	1666 strcpy(ctx->script.front, "));");
adamc@972	1667 ctx->script.front += 3;
adamc@562	1668
adam@1446	1669 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1670 return r;
adam@1446	1671 }
adam@1446	1672
adam@1446	1673 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1674 int len;
adamc@577	1675 size_t s_len = strlen(s);
adamc@577	1676
adam@1446	1677 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1678 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1679 ctx->script.front += len;
adamc@666	1680 strcpy(ctx->script.front, s);
adamc@666	1681 ctx->script.front += s_len;
adamc@970	1682 strcpy(ctx->script.front, "));");
adamc@972	1683 ctx->script.front += 3;
adamc@577	1684
adamc@577	1685 return uw_unit_v;
adamc@577	1686 }
adamc@577	1687
adamc@311	1688 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1689 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1690 }
adamc@117	1691
adamc@311	1692 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1693 *(ctx->page.front)++ = c;
adam@1413	1694 *ctx->page.front = 0;
adamc@117	1695 }
adamc@117	1696
adamc@311	1697 void uw_writec(uw_context ctx, char c) {
adam@1413	1698 uw_check(ctx, 2);
adamc@311	1699 uw_writec_unsafe(ctx, c);
adamc@117	1700 }
adamc@117	1701
adam@2085	1702 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1703 uw_writec(ctx, c);
adam@2085	1704 }
adam@2085	1705
adamc@311	1706 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1707 int len = strlen(s);
adamc@666	1708 memcpy(ctx->page.front, s, len);
adamc@666	1709 ctx->page.front += len;
adamc@117	1710 }
adamc@117	1711
adamc@311	1712 void uw_write(uw_context ctx, const char* s) {
adamc@311	1713 uw_check(ctx, strlen(s) + 1);
adamc@311	1714 uw_write_unsafe(ctx, s);
adamc@666	1715 *ctx->page.front = 0;
adamc@102	1716 }
adamc@106	1717
ziv@2204	1718 void uw_recordingStart(uw_context ctx) {
ziv@2262	1719 if (ctx->numRecording++ == 0) {
ziv@2262	1720 ctx->recordingOffset = ctx->page.front - ctx->page.start;
ziv@2262	1721 }
ziv@2204	1722 }
ziv@2204	1723
ziv@2204	1724 char *uw_recordingRead(uw_context ctx) {
ziv@2262	1725 // Only the outermost recorder can read unless the recording is empty.
ziv@2262	1726 char *recording = ctx->page.start + ctx->recordingOffset;
ziv@2262	1727 if (--ctx->numRecording > 0 && recording != ctx->page.front) {
ziv@2262	1728 return NULL;
ziv@2262	1729 }
ziv@2262	1730 return strdup(recording);
ziv@2204	1731 }
ziv@2204	1732
adamc@311	1733 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1734 char *result;
adamc@136	1735 int len;
adamc@311	1736 uw_check_heap(ctx, INTS_MAX);
adamc@666	1737 result = ctx->heap.front;
adamc@276	1738 sprintf(result, "%lld%n", n, &len);
adamc@666	1739 ctx->heap.front += len+1;
adamc@136	1740 return result;
adamc@106	1741 }
adamc@106	1742
adamc@311	1743 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1744 char *result;
adamc@136	1745 int len;
adamc@311	1746 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1747 result = ctx->heap.front;
adam@1920	1748 sprintf(result, "%.16g%n", n, &len);
adamc@666	1749 ctx->heap.front += len+1;
adamc@136	1750 return result;
adamc@106	1751 }
adamc@106	1752
adamc@311	1753 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1754 int len = strlen(s);
adamc@136	1755 char result, p;
adamc@311	1756 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1757
adamc@666	1758 result = p = ctx->heap.front;
adamc@136	1759
adamc@136	1760 for (; *s; s++) {
adamc@1054	1761 unsigned char c = *s;
adamc@136	1762
adamc@136	1763 if (c == '"') {
adamc@136	1764 strcpy(p, """);
adamc@136	1765 p += 6;
adamc@136	1766 } else if (c == '&') {
adamc@136	1767 strcpy(p, "&");
adamc@136	1768 p += 5;
adamc@136	1769 }
adamc@1059	1770 else
adamc@136	1771 *p++ = c;
adamc@136	1772 }
adamc@136	1773
adamc@137	1774 *p++ = 0;
adamc@666	1775 ctx->heap.front = p;
adamc@136	1776 return result;
adamc@106	1777 }
adamc@106	1778
adamc@1011	1779 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1780 char result, p;
adamc@1011	1781 uw_check_heap(ctx, 7);
adamc@1011	1782
adamc@1011	1783 result = p = ctx->heap.front;
adamc@1011	1784
adamc@1011	1785 if (c == '"') {
adamc@1011	1786 strcpy(p, """);
adamc@1011	1787 p += 6;
adamc@1011	1788 } else if (c == '&') {
adamc@1011	1789 strcpy(p, "&");
adamc@1011	1790 p += 5;
adamc@1011	1791 }
adamc@1059	1792 else
adamc@1011	1793 *p++ = c;
adamc@1011	1794
adamc@1011	1795 *p++ = 0;
adamc@1011	1796 ctx->heap.front = p;
adamc@1011	1797 return result;
adamc@1011	1798 }
adamc@1011	1799
adamc@721	1800 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1801 return s;
adamc@721	1802 }
adamc@721	1803
adamc@311	1804 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1805 int len;
adamc@117	1806
adamc@666	1807 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1808 ctx->page.front += len;
adamc@106	1809 }
adamc@106	1810
adamc@428	1811 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1812 uw_check(ctx, INTS_MAX);
adamc@311	1813 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1814
adamc@428	1815 return uw_unit_v;
adamc@106	1816 }
adamc@106	1817
adamc@428	1818 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1819 int len;
adamc@117	1820
adamc@311	1821 uw_check(ctx, FLOATS_MAX);
adamc@666	1822 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1823 ctx->page.front += len;
adamc@428	1824
adamc@428	1825 return uw_unit_v;
adamc@117	1826 }
adamc@117	1827
adamc@428	1828 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1829 uw_check(ctx, strlen(s) * 6);
adamc@117	1830
adamc@106	1831 for (; *s; s++) {
adamc@1054	1832 unsigned char c = *s;
adamc@106	1833
adamc@106	1834 if (c == '"')
adamc@311	1835 uw_write_unsafe(ctx, """);
adamc@136	1836 else if (c == '&')
adamc@311	1837 uw_write_unsafe(ctx, "&");
adamc@1059	1838 else
adamc@311	1839 uw_writec_unsafe(ctx, c);
adamc@106	1840 }
adamc@428	1841
adamc@428	1842 return uw_unit_v;
adamc@106	1843 }
adamc@120	1844
adamc@1011	1845 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1846 uw_check(ctx, 6);
adamc@1011	1847
adamc@1011	1848 if (c == '"')
adamc@1011	1849 uw_write_unsafe(ctx, """);
adamc@1011	1850 else if (c == '&')
adamc@1011	1851 uw_write_unsafe(ctx, "&");
adamc@1059	1852 else
adamc@1011	1853 uw_writec_unsafe(ctx, c);
adamc@1011	1854
adamc@1011	1855 return uw_unit_v;
adamc@1011	1856 }
adamc@1011	1857
adamc@120	1858
adamc@311	1859 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1860 int len;
adamc@137	1861 char *r;
adamc@137	1862
adamc@311	1863 uw_check_heap(ctx, INTS_MAX);
adamc@666	1864 r = ctx->heap.front;
adamc@276	1865 sprintf(r, "%lld%n", n, &len);
adamc@666	1866 ctx->heap.front += len+1;
adamc@137	1867 return r;
adamc@120	1868 }
adamc@120	1869
adamc@682	1870 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1871 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1872 return "";
adamc@682	1873 else {
adamc@682	1874 int len;
adamc@682	1875 char *r;
adamc@679	1876
adamc@682	1877 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1878 r = ctx->heap.front;
adamc@682	1879 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1880 ctx->heap.front += len+1;
adamc@682	1881 return r;
adamc@682	1882 }
adamc@679	1883 }
adamc@679	1884
adamc@311	1885 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1886 int len;
adamc@137	1887 char *r;
adamc@137	1888
adamc@311	1889 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1890 r = ctx->heap.front;
adamc@137	1891 sprintf(r, "%g%n", n, &len);
adamc@666	1892 ctx->heap.front += len+1;
adamc@137	1893 return r;
adamc@120	1894 }
adamc@120	1895
adamc@311	1896 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1897 char r, p;
adamc@137	1898
adamc@925	1899 if (s[0] == '\0')
adamc@925	1900 return "_";
adamc@925	1901
adamc@925	1902 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1903
adamc@925	1904 r = p = ctx->heap.front;
adamc@925	1905 if (s[0] == '_')
adamc@925	1906 *p++ = '_';
adamc@925	1907
adamc@925	1908 for (; *s; s++) {
adamc@1087	1909 unsigned char c = *s;
adamc@137	1910
adamc@137	1911 if (c == ' ')
adamc@137	1912 *p++ = '+';
adamc@137	1913 else if (isalnum(c))
adamc@137	1914 *p++ = c;
adamc@137	1915 else {
adamc@1259	1916 sprintf(p, ".%02X", c);
adamc@137	1917 p += 3;
adamc@137	1918 }
adamc@137	1919 }
adamc@137	1920
adamc@137	1921 *p++ = 0;
adamc@666	1922 ctx->heap.front = p;
adamc@137	1923 return r;
adamc@120	1924 }
adamc@120	1925
adamc@311	1926 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1927 if (b == uw_Basis_False)
adamc@186	1928 return "0";
adamc@186	1929 else
adamc@186	1930 return "1";
adamc@186	1931 }
adamc@186	1932
adam@1620	1933 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1934 char *r;
adam@1620	1935 int len;
adam@1620	1936 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1937 r = ctx->heap.front;
adam@1620	1938 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1939 ctx->heap.front += len+1;
adam@1620	1940 return r;
adam@1620	1941 }
adam@1620	1942
adamc@311	1943 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1944 int len;
adamc@120	1945
adamc@666	1946 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1947 ctx->page.front += len;
adamc@120	1948 }
adamc@120	1949
adamc@428	1950 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1951 uw_check(ctx, INTS_MAX);
adamc@311	1952 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1953
adamc@428	1954 return uw_unit_v;
adamc@120	1955 }
adamc@120	1956
adamc@682	1957 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1958 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1959 int len;
phurst@1981	1960
adamc@682	1961 uw_check(ctx, INTS_MAX + 1);
adamc@682	1962 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1963 ctx->page.front += len;
adamc@682	1964 }
phurst@1981	1965
adamc@679	1966 return uw_unit_v;
adamc@679	1967 }
adamc@679	1968
adamc@428	1969 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1970 int len;
adamc@120	1971
adamc@311	1972 uw_check(ctx, FLOATS_MAX);
adamc@666	1973 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1974 ctx->page.front += len;
adamc@428	1975
adamc@428	1976 return uw_unit_v;
adamc@120	1977 }
adamc@120	1978
adamc@488	1979 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1980 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1981 }
adamc@488	1982
adam@1404	1983 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1984 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1985 }
adam@1404	1986
adamc@428	1987 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1988 if (s[0] == '\0') {
adamc@925	1989 uw_check(ctx, 1);
adamc@925	1990 uw_writec_unsafe(ctx, '_');
adamc@925	1991 return uw_unit_v;
adamc@925	1992 }
adamc@925	1993
adamc@925	1994 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1995
adamc@925	1996 if (s[0] == '_')
adamc@925	1997 uw_writec_unsafe(ctx, '_');
adamc@120	1998
adamc@120	1999 for (; *s; s++) {
adamc@1087	2000 unsigned char c = *s;
adamc@120	2001
adamc@120	2002 if (c == ' ')
adamc@311	2003 uw_writec_unsafe(ctx, '+');
adamc@120	2004 else if (isalnum(c))
adamc@311	2005 uw_writec_unsafe(ctx, c);
adamc@120	2006 else {
adamc@1259	2007 sprintf(ctx->page.front, ".%02X", c);
adamc@666	2008 ctx->page.front += 3;
adamc@120	2009 }
adamc@120	2010 }
adamc@428	2011
adamc@428	2012 return uw_unit_v;
adamc@120	2013 }
adamc@120	2014
adamc@428	2015 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2016 if (b == uw_Basis_False)
adamc@311	2017 uw_writec(ctx, '0');
adamc@186	2018 else
adamc@311	2019 uw_writec(ctx, '1');
adamc@428	2020
adamc@428	2021 return uw_unit_v;
adamc@186	2022 }
adamc@186	2023
adam@1620	2024 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	2025 int len;
phurst@1981	2026
adam@1620	2027 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	2028 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	2029 ctx->page.front += len;
phurst@1981	2030
adam@1620	2031 return uw_unit_v;
adam@1620	2032 }
adam@1620	2033
adamc@120	2034
adamc@311	2035 static char uw_unurlify_advance(char s) {
adamc@144	2036 char *new_s = strchr(s, '/');
adamc@120	2037
adamc@120	2038 if (new_s)
adamc@120	2039 *new_s++ = 0;
adamc@120	2040 else
adamc@144	2041 new_s = strchr(s, 0);
adamc@144	2042
adamc@144	2043 return new_s;
adamc@144	2044 }
adamc@144	2045
adamc@311	2046 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2047 char new_s = uw_unurlify_advance(s);
adamc@311	2048 uw_Basis_int r;
adamc@120	2049
adamc@276	2050 r = atoll(*s);
adamc@120	2051 *s = new_s;
adamc@120	2052 return r;
adamc@120	2053 }
adamc@120	2054
adamc@311	2055 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2056 char new_s = uw_unurlify_advance(s);
adamc@311	2057 uw_Basis_float r;
adamc@120	2058
adamc@120	2059 r = atof(*s);
adamc@120	2060 *s = new_s;
adamc@120	2061 return r;
adamc@120	2062 }
adamc@120	2063
adamc@488	2064 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2065 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2066 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2067 return r;
adamc@488	2068 }
adamc@488	2069
adamc@1023	2070 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2071 char s1, s2 = s;
adamc@144	2072 int n;
adamc@136	2073
adamc@1023	2074 if (!fromClient) {
adamc@1023	2075 if (*s2 == '_')
adamc@1023	2076 ++s2;
adamc@1259	2077 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2078 s2 += 3;
adamc@1023	2079 }
adamc@925	2080
adamc@927	2081 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2082 unsigned char c = *s2;
adamc@136	2083
adamc@136	2084 switch (c) {
adamc@136	2085 case '+':
adamc@136	2086 *s1 = ' ';
adamc@136	2087 break;
adamc@136	2088 case '%':
adamc@169	2089 if (s2[1] == 0)
adamc@311	2090 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2091 if (s2[2] == 0)
adamc@311	2092 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2093 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2094 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2095 *s1 = n;
adamc@136	2096 s2 += 2;
adamc@136	2097 break;
adamc@1259	2098 case '.':
adamc@1259	2099 if (!fromClient) {
adamc@1259	2100 if (s2[1] == 0)
adamc@1259	2101 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2102 if (s2[2] == 0)
adamc@1259	2103 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2104 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2105 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2106 *s1 = n;
adamc@1259	2107 s2 += 2;
adamc@1259	2108 break;
adamc@1259	2109 }
adamc@136	2110 default:
adamc@136	2111 *s1 = c;
adamc@136	2112 }
adamc@136	2113 }
adamc@136	2114 *s1++ = 0;
adamc@144	2115 return s1;
adamc@144	2116 }
adamc@144	2117
adamc@311	2118 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2119 char new_s = uw_unurlify_advance(s);
adamc@311	2120 uw_Basis_bool r;
phurst@1981	2121
adamc@186	2122 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2123 r = uw_Basis_False;
adamc@186	2124 else
adamc@311	2125 r = uw_Basis_True;
adamc@186	2126
adamc@186	2127 *s = new_s;
adamc@186	2128 return r;
adamc@186	2129 }
adamc@186	2130
adamc@311	2131 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2132 char new_s = uw_unurlify_advance(s);
adamc@1134	2133 char *r;
adamc@1134	2134 int len;
adamc@144	2135
adamc@200	2136 len = strlen(*s);
adamc@311	2137 uw_check_heap(ctx, len + 1);
adamc@144	2138
adamc@666	2139 r = ctx->heap.front;
adamc@1023	2140 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2141 *s = new_s;
adamc@1023	2142 return r;
adamc@1023	2143 }
adamc@1023	2144
adamc@1109	2145 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2146 s = uw_unurlify_advance(s);
adamc@1109	2147 return uw_unit_v;
adamc@1109	2148 }
adamc@1109	2149
adamc@1023	2150 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2151 char new_s = uw_unurlify_advance(s);
adamc@1134	2152 char *r;
adamc@1134	2153 int len;
adamc@1023	2154
adamc@1023	2155 len = strlen(*s);
adamc@1023	2156 uw_check_heap(ctx, len + 1);
adamc@1023	2157
adamc@1023	2158 r = ctx->heap.front;
adamc@1023	2159 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2160 *s = new_s;
adamc@136	2161 return r;
adamc@120	2162 }
adamc@135	2163
adamc@135	2164
adamc@311	2165 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2166 int len;
adamc@286	2167 char *r;
adamc@286	2168
adamc@311	2169 uw_check_heap(ctx, INTS_MAX);
adamc@666	2170 r = ctx->heap.front;
adamc@286	2171 sprintf(r, "%lld%n", n, &len);
adamc@666	2172 ctx->heap.front += len+1;
adamc@286	2173 return r;
adamc@286	2174 }
adamc@286	2175
adamc@428	2176 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2177 int len;
adamc@286	2178
adamc@311	2179 uw_check(ctx, INTS_MAX);
adamc@666	2180 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2181 ctx->page.front += len;
phurst@1981	2182
adamc@428	2183 return uw_unit_v;
adamc@286	2184 }
adamc@286	2185
adam@1358	2186 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2187 unsigned int n = ch;
adam@1358	2188 int len;
adam@1358	2189 char *r;
adam@1358	2190
adam@1358	2191 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2192 r = ctx->heap.front;
adam@1358	2193 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2194 ctx->heap.front += len+1;
adam@1358	2195 return r;
adam@1358	2196 }
adam@1358	2197
adam@1358	2198 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2199 unsigned int n = ch;
adam@1358	2200 int len;
adam@1358	2201
adam@1358	2202 uw_check(ctx, INTS_MAX+3);
adam@1358	2203 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2204 ctx->page.front += len;
adam@1358	2205 return uw_unit_v;
adam@1358	2206 }
adam@1358	2207
adamc@311	2208 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2209 int len;
adamc@286	2210 char *r;
adamc@286	2211
adamc@311	2212 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2213 r = ctx->heap.front;
adamc@286	2214 sprintf(r, "%g%n", n, &len);
adamc@666	2215 ctx->heap.front += len+1;
adamc@286	2216 return r;
adamc@286	2217 }
adamc@286	2218
adamc@428	2219 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2220 int len;
adamc@286	2221
adamc@311	2222 uw_check(ctx, FLOATS_MAX);
adamc@666	2223 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2224 ctx->page.front += len;
adamc@428	2225
adamc@428	2226 return uw_unit_v;
adamc@286	2227 }
adamc@286	2228
adam@1365	2229 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2230 int len;
adam@1360	2231 char *r;
adam@1360	2232
adam@1360	2233 uw_check_heap(ctx, INTS_MAX);
adam@1360	2234 r = ctx->heap.front;
adamc@1377	2235 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2236 ctx->heap.front += len+1;
adam@1360	2237 return r;
adam@1360	2238 }
adam@1360	2239
adam@1365	2240 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2241 int len;
adam@1360	2242
adam@1360	2243 uw_check(ctx, INTS_MAX);
adam@1360	2244 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2245 ctx->page.front += len;
phurst@1981	2246
adam@1360	2247 return uw_unit_v;
adam@1360	2248 }
adam@1360	2249
adam@1444	2250 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2251 char r, s2;
adamc@137	2252
adamc@311	2253 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2254
adamc@666	2255 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2256 unsigned char c = *s;
adamc@137	2257
adamc@137	2258 switch (c) {
adamc@137	2259 case '<':
adamc@137	2260 strcpy(s2, "<");
adamc@137	2261 s2 += 4;
adamc@137	2262 break;
adamc@137	2263 case '&':
adamc@137	2264 strcpy(s2, "&");
adamc@137	2265 s2 += 5;
adamc@137	2266 break;
adamc@137	2267 default:
adamc@1059	2268 *s2++ = c;
adamc@137	2269 }
adamc@137	2270 }
adamc@137	2271
adamc@137	2272 *s2++ = 0;
adamc@666	2273 ctx->heap.front = s2;
adamc@137	2274 return r;
adamc@135	2275 }
adamc@135	2276
adamc@428	2277 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2278 uw_check(ctx, strlen(s) * 6);
adamc@135	2279
adamc@135	2280 for (; *s; s++) {
adamc@1054	2281 unsigned char c = *s;
adamc@135	2282
adamc@135	2283 switch (c) {
adamc@135	2284 case '<':
adamc@311	2285 uw_write_unsafe(ctx, "<");
adamc@135	2286 break;
adamc@135	2287 case '&':
adamc@311	2288 uw_write_unsafe(ctx, "&");
adamc@135	2289 break;
adamc@135	2290 default:
adamc@1059	2291 uw_writec_unsafe(ctx, c);
adamc@135	2292 }
adamc@135	2293 }
adamc@428	2294
adamc@428	2295 return uw_unit_v;
adamc@135	2296 }
adamc@180	2297
adamc@311	2298 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2299 if (b == uw_Basis_False)
adamc@286	2300 return "False";
adamc@286	2301 else
adamc@286	2302 return "True";
adamc@286	2303 }
adamc@286	2304
adamc@428	2305 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2306 if (b == uw_Basis_False) {
adamc@311	2307 uw_check(ctx, 6);
adamc@666	2308 strcpy(ctx->page.front, "False");
adamc@666	2309 ctx->page.front += 5;
adamc@286	2310 } else {
adamc@311	2311 uw_check(ctx, 5);
adamc@666	2312 strcpy(ctx->page.front, "True");
adamc@666	2313 ctx->page.front += 4;
adamc@286	2314 }
adamc@428	2315
adamc@428	2316 return uw_unit_v;
adamc@286	2317 }
adamc@286	2318
adamc@436	2319 #define TIME_FMT "%x %X"
adamc@438	2320 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2321 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2322
adam@1629	2323 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2324
adamc@436	2325 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2326 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2327 }
adamc@436	2328
adamc@436	2329 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2330 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2331 }
adamc@436	2332
adam@1446	2333 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2334 int len;
adam@1446	2335 char *r;
adam@1446	2336
adam@1446	2337 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2338 r = ctx->heap.front;
adam@1446	2339 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2340 ctx->heap.front += len+1;
adam@1446	2341 return r;
adam@1446	2342 }
adam@1446	2343
adam@1446	2344 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2345 int len;
adam@1446	2346
adam@1446	2347 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2348 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2349 ctx->page.front += len;
phurst@1981	2350
adam@1446	2351 return uw_unit_v;
adam@1446	2352 }
adam@1446	2353
adamc@821	2354 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2355 while (n >= 0) {
adam@1388	2356 if (*s == 0)
adam@1388	2357 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2358
adam@1388	2359 if (n == 0)
adam@1388	2360 return *s;
adam@1388	2361
adam@1388	2362 --n;
adam@1388	2363 ++s;
adam@1388	2364 }
adam@1388	2365
adam@1388	2366 uw_error(ctx, FATAL, "Negative strsub bound");
adamc@821	2367 }
adamc@821	2368
adamc@821	2369 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2370 while (n >= 0) {
adam@1388	2371 if (*s == 0 \|\| n == 0)
adam@1388	2372 return s;
adam@1388	2373
adam@1388	2374 --n;
adam@1388	2375 ++s;
adam@1388	2376 }
adam@1388	2377
adam@1388	2378 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2379 }
adamc@821	2380
adamc@828	2381 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2382 return strlen(s);
adamc@828	2383 }
adamc@828	2384
adam@1388	2385 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2386 while (n > 0) {
adam@1388	2387 if (*s == 0)
adam@1388	2388 return uw_Basis_False;
adam@1388	2389
adam@1388	2390 --n;
adam@1388	2391 ++s;
adam@1388	2392 }
adam@1388	2393
adam@1388	2394 return uw_Basis_True;
adam@1388	2395 }
adam@1388	2396
adamc@829	2397 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2398 return strchr(s, ch);
adamc@829	2399 }
adamc@829	2400
adamc@831	2401 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2402 return strcspn(s, chs);
adamc@831	2403 }
adamc@831	2404
adamc@829	2405 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2406 uw_Basis_string r = strchr(s, ch);
adamc@829	2407 if (r == NULL)
adamc@829	2408 return NULL;
adamc@829	2409 else {
adamc@829	2410 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2411 *nr = r - s;
adamc@829	2412 return nr;
adamc@829	2413 }
adamc@829	2414 }
adamc@829	2415
adam@1390	2416 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2417 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2418 if (r == NULL)
adam@1390	2419 return NULL;
adam@1390	2420 else {
adam@1390	2421 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2422 *nr = r - haystack;
adam@1390	2423 return nr;
adam@1390	2424 }
adam@1390	2425 }
adam@1390	2426
adamc@311	2427 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2428 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2429 char *s;
adamc@180	2430
adamc@311	2431 uw_check_heap(ctx, len);
adamc@180	2432
adamc@666	2433 s = ctx->heap.front;
adamc@180	2434
adamc@180	2435 strcpy(s, s1);
adamc@180	2436 strcat(s, s2);
adamc@666	2437 ctx->heap.front += len;
adamc@180	2438
adamc@180	2439 return s;
adamc@180	2440 }
adamc@278	2441
adamc@829	2442 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2443 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2444
adamc@829	2445 if (start < 0)
adamc@829	2446 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2447 if (len < 0)
adamc@829	2448 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2449 if (start + len > full_len)
adamc@829	2450 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2451
adamc@829	2452 if (start + len == full_len)
adamc@829	2453 return &s[start];
adamc@829	2454 else {
adamc@829	2455 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2456 memcpy(r, s+start, len);
adamc@829	2457 r[len] = 0;
adamc@829	2458 return r;
adamc@829	2459 }
phurst@1981	2460
adamc@829	2461 }
adamc@829	2462
adamc@1023	2463 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2464 char *r;
adamc@1023	2465
adamc@1023	2466 uw_check_heap(ctx, 2);
adamc@1023	2467 r = ctx->heap.front;
adamc@1023	2468 r[0] = ch;
adamc@1023	2469 r[1] = 0;
adamc@1023	2470
adamc@1023	2471 ctx->heap.front += 2;
adamc@1023	2472
adamc@1023	2473 return r;
adamc@1023	2474 }
adamc@1023	2475
adamc@737	2476 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2477 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2478 char *s;
adamc@278	2479
adamc@311	2480 uw_check_heap(ctx, len);
adamc@278	2481
adamc@666	2482 s = ctx->heap.front;
adamc@278	2483
adamc@278	2484 strcpy(s, s1);
adamc@666	2485 ctx->heap.front += len;
adamc@278	2486
adamc@278	2487 return s;
adamc@278	2488 }
adamc@280	2489
adam@1295	2490 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2491 if (ctx->error_message[0]) {
adam@1295	2492 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2493 ctx->error_message[0] = 0;
adam@1295	2494 return s;
adam@1295	2495 } else
adam@1295	2496 return NULL;
adam@1295	2497 }
adam@1295	2498
adamc@737	2499 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2500 if (s1)
adamc@737	2501 return uw_strdup(ctx, s1);
adamc@493	2502 else
adamc@493	2503 return NULL;
adamc@493	2504 }
adamc@493	2505
adamc@742	2506 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2507 char *r = uw_malloc(ctx, len);
adamc@742	2508 memcpy(r, p, len);
adamc@742	2509 return r;
adamc@742	2510 }
adamc@280	2511
adamc@879	2512 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2513
adamc@311	2514 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2515 int len;
adamc@281	2516 char *r;
adamc@281	2517
adamc@311	2518 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2519 r = ctx->heap.front;
adamc@879	2520 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2521 ctx->heap.front += len+1;
adamc@281	2522 return r;
adamc@281	2523 }
adamc@281	2524
adamc@467	2525 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2526 if (n == NULL)
adamc@467	2527 return "NULL";
adamc@467	2528 else
adamc@467	2529 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2530 }
adamc@467	2531
adam@1920	2532 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2533
adamc@311	2534 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2535 int len;
adamc@281	2536 char *r;
adamc@281	2537
adamc@311	2538 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2539 r = ctx->heap.front;
adamc@879	2540 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2541 ctx->heap.front += len+1;
adamc@281	2542 return r;
adamc@281	2543 }
adamc@281	2544
adamc@467	2545 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2546 if (n == NULL)
adamc@467	2547 return "NULL";
adamc@467	2548 else
adamc@467	2549 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2550 }
adamc@467	2551
adam@1834	2552 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2553 char *uw_sqlsuffixString = "::text";
adamc@1011	2554 char *uw_sqlsuffixChar = "::char";
adamc@281	2555
adamc@311	2556 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2557 char r, s2;
adamc@280	2558
adamc@879	2559 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2560
adamc@666	2561 r = s2 = ctx->heap.front;
adamc@879	2562 if (uw_Estrings)
adamc@879	2563 *s2++ = 'E';
adamc@280	2564 *s2++ = '\'';
adamc@280	2565
adamc@280	2566 for (; *s; s++) {
adamc@280	2567 char c = *s;
adamc@280	2568
adamc@280	2569 switch (c) {
adamc@280	2570 case '\'':
adamc@885	2571 if (uw_Estrings)
adamc@885	2572 strcpy(s2, "\\'");
adamc@885	2573 else
adamc@885	2574 strcpy(s2, "''");
adamc@280	2575 s2 += 2;
adamc@280	2576 break;
adamc@280	2577 case '\\':
adamc@885	2578 if (uw_Estrings) {
adamc@885	2579 strcpy(s2, "\\\\");
adamc@885	2580 s2 += 2;
adamc@885	2581 } else
adamc@885	2582 *s2++ = '\\';
adamc@280	2583 break;
adamc@280	2584 default:
adamc@1150	2585 if (isprint((int)c))
adamc@280	2586 *s2++ = c;
adamc@879	2587 else if (uw_Estrings) {
adam@1857	2588 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2589 s2 += 4;
adamc@280	2590 }
adamc@879	2591 else
adam@1689	2592 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2593 }
adamc@280	2594 }
adamc@280	2595
adamc@879	2596 *s2++ = '\'';
adamc@879	2597 strcpy(s2, uw_sqlsuffixString);
adamc@879	2598 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2599 return r;
adamc@280	2600 }
adamc@281	2601
adamc@1011	2602 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2603 char r, s2;
adamc@1011	2604
adamc@1011	2605 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2606
adamc@1011	2607 r = s2 = ctx->heap.front;
adamc@1011	2608 if (uw_Estrings)
adamc@1011	2609 *s2++ = 'E';
adamc@1011	2610 *s2++ = '\'';
adamc@1011	2611
adamc@1011	2612 switch (c) {
adamc@1011	2613 case '\'':
adamc@1011	2614 if (uw_Estrings)
adamc@1011	2615 strcpy(s2, "\\'");
adamc@1011	2616 else
adamc@1011	2617 strcpy(s2, "''");
adamc@1011	2618 s2 += 2;
adamc@1011	2619 break;
adamc@1011	2620 case '\\':
adamc@1011	2621 if (uw_Estrings) {
adamc@1011	2622 strcpy(s2, "\\\\");
adamc@1011	2623 s2 += 2;
adamc@1011	2624 } else
adamc@1011	2625 *s2++ = '\\';
adamc@1011	2626 break;
adamc@1011	2627 default:
adamc@1150	2628 if (isprint((int)c))
adamc@1011	2629 *s2++ = c;
adamc@1011	2630 else if (uw_Estrings) {
adam@1857	2631 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2632 s2 += 4;
adamc@1011	2633 }
adamc@1011	2634 else
adamc@1011	2635 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2636 }
adamc@1011	2637
adamc@1011	2638 *s2++ = '\'';
adamc@1011	2639 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2640 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2641 return r;
adamc@1011	2642 }
adamc@1011	2643
adamc@879	2644 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2645
adam@1867	2646 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2647 char r, s2;
adamc@737	2648 size_t i;
adamc@737	2649
adam@1867	2650 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2651
adamc@737	2652 r = s2 = ctx->heap.front;
adamc@879	2653 if (uw_Estrings)
adamc@879	2654 *s2++ = 'E';
adam@1867	2655 else
adam@1867	2656 *s2++ = 'X';
adamc@737	2657 *s2++ = '\'';
adamc@737	2658
adamc@737	2659 for (i = 0; i < b.size; ++i) {
adam@1867	2660 unsigned char c = b.data[i];
adam@1867	2661
adam@1867	2662 if (uw_Estrings) {
adam@1867	2663 switch (c) {
adam@1867	2664 case '\'':
adamc@885	2665 strcpy(s2, "\\'");
adam@1867	2666 s2 += 2;
adam@1867	2667 break;
adam@1867	2668 case '\\':
adamc@885	2669 strcpy(s2, "\\\\\\\\");
adamc@885	2670 s2 += 4;
adam@1867	2671 break;
adam@1867	2672 default:
adam@1867	2673 if (isprint((int)c))
adam@1867	2674 *s2++ = c;
adam@1867	2675 else {
adam@1867	2676 sprintf(s2, "\\\\%03o", c);
adam@1867	2677 s2 += 5;
adam@1867	2678 }
adamc@737	2679 }
adam@1867	2680 } else {
adam@1867	2681 sprintf(s2, "%02X", c);
adam@1867	2682 s2 += 2;
adamc@737	2683 }
phurst@1981	2684 }
adamc@737	2685
adamc@879	2686 *s2++ = '\'';
adamc@879	2687 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2688 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2689 return r;
adamc@737	2690 }
adamc@737	2691
adamc@682	2692 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2693 int len;
adamc@682	2694 char *r;
adamc@682	2695 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2696
adamc@682	2697 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2698 r = ctx->heap.front;
adamc@879	2699 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2700 ctx->heap.front += len+1;
adamc@682	2701 return r;
adamc@682	2702 }
adamc@682	2703
adamc@682	2704 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2705 int len;
adamc@682	2706 char *r;
adamc@682	2707 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2708
adamc@682	2709 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2710 r = ctx->heap.front;
adamc@682	2711 sprintf(r, "%lld%n", combo, &len);
adamc@682	2712 ctx->heap.front += len+1;
adamc@682	2713 return r;
adamc@682	2714 }
adamc@682	2715
adamc@879	2716 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2717
adamc@682	2718 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2719 int len;
adamc@682	2720 char *r;
adamc@682	2721
adamc@682	2722 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2723 r = ctx->heap.front;
adamc@879	2724 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2725 ctx->heap.front += len+1;
adamc@682	2726 return r;
adamc@682	2727 }
adamc@682	2728
adamc@682	2729 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2730 int len;
adamc@682	2731 char *r;
adamc@682	2732
adamc@682	2733 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2734 r = ctx->heap.front;
adamc@682	2735 sprintf(r, "%u%n", cli, &len);
adamc@682	2736 ctx->heap.front += len+1;
adamc@682	2737 return r;
adamc@682	2738 }
adamc@682	2739
adamc@467	2740 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2741 if (s == NULL)
adamc@467	2742 return "NULL";
adamc@467	2743 else
adamc@467	2744 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2745 }
adamc@467	2746
adamc@311	2747 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2748 if (b == uw_Basis_False)
adamc@281	2749 return "FALSE";
adamc@281	2750 else
adamc@281	2751 return "TRUE";
adamc@281	2752 }
adamc@282	2753
adamc@467	2754 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2755 if (b == NULL)
adamc@467	2756 return "NULL";
adamc@467	2757 else
adamc@467	2758 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2759 }
adamc@467	2760
adamc@439	2761 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2762 size_t len;
adamc@682	2763 char r, s;
adam@1392	2764 struct tm stm = {};
adam@1392	2765 stm.tm_isdst = -1;
adamc@682	2766
adam@1365	2767 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2768 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2769 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2770 if (uw_sql_type_annotations) {
adam@1834	2771 if (t.microseconds) {
adam@1834	2772 r = uw_malloc(ctx, len + 21);
adam@1834	2773 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2774 } else {
adam@1834	2775 r = uw_malloc(ctx, len + 14);
adam@1834	2776 sprintf(r, "'%s'::timestamp", s);
adam@1834	2777 }
adam@1367	2778 } else {
adam@1834	2779 r = uw_malloc(ctx, len + 3);
adam@1834	2780 sprintf(r, "'%s'", s);
adam@1367	2781 }
adamc@682	2782 return r;
adamc@682	2783 } else
adamc@682	2784 return "<Invalid time>";
adamc@682	2785 }
adamc@682	2786
adamc@682	2787 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2788 size_t len;
adamc@439	2789 char *r;
adam@1392	2790 struct tm stm = {};
adam@1392	2791 stm.tm_isdst = -1;
adamc@439	2792
adam@1365	2793 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2794 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2795 r = ctx->heap.front;
adamc@439	2796 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2797 ctx->heap.front += len+1;
adamc@439	2798 return r;
adamc@439	2799 } else
adamc@439	2800 return "<Invalid time>";
adamc@439	2801 }
adamc@439	2802
adam@1364	2803 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2804 size_t len;
adam@1364	2805 char *r;
adam@1392	2806 struct tm stm = {};
adam@1392	2807 stm.tm_isdst = -1;
adam@1364	2808
adam@1365	2809 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2810 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2811 r = ctx->heap.front;
adam@1365	2812 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2813 ctx->heap.front += len;
adam@1365	2814 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2815 ctx->heap.front += 8;
adam@1364	2816 return r;
adam@1364	2817 } else
adam@1364	2818 return "<Invalid time>";
adam@1364	2819 }
adam@1364	2820
adamc@467	2821 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2822 if (t == NULL)
adamc@467	2823 return "NULL";
adamc@467	2824 else
adamc@467	2825 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2826 }
adamc@467	2827
adamc@311	2828 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2829 static uw_Basis_int true = 1;
adamc@311	2830 static uw_Basis_int false = 0;
adamc@282	2831
adamc@311	2832 if (b == uw_Basis_False)
adamc@282	2833 return (char *)&false;
adamc@282	2834 else
adamc@282	2835 return (char *)&true;
adamc@282	2836 }
adamc@284	2837
adamc@311	2838 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2839 int len;
adamc@284	2840 char *r;
adamc@284	2841
adamc@311	2842 uw_check_heap(ctx, INTS_MAX);
adamc@666	2843 r = ctx->heap.front;
adamc@284	2844 sprintf(r, "%lld%n", n, &len);
adamc@666	2845 ctx->heap.front += len+1;
adamc@284	2846 return r;
adamc@284	2847 }
adamc@285	2848
adamc@311	2849 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2850 int len;
adamc@285	2851 char *r;
adamc@285	2852
adamc@311	2853 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2854 r = ctx->heap.front;
adamc@285	2855 sprintf(r, "%g%n", n, &len);
adamc@666	2856 ctx->heap.front += len+1;
adamc@285	2857 return r;
adamc@285	2858 }
adamc@285	2859
adamc@821	2860 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2861 char *r = uw_malloc(ctx, 2);
adamc@821	2862 r[0] = ch;
adamc@821	2863 r[1] = 0;
adamc@821	2864 return r;
adamc@821	2865 }
adamc@821	2866
adamc@311	2867 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2868 if (b == uw_Basis_False)
adamc@285	2869 return "False";
adamc@285	2870 else
adamc@285	2871 return "True";
adamc@285	2872 }
adamc@288	2873
adam@1359	2874 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2875 size_t len;
adam@1352	2876 char *r;
adam@1392	2877 struct tm stm = {};
adam@1392	2878 stm.tm_isdst = -1;
adam@1352	2879
adam@1365	2880 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2881 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2882 r = ctx->heap.front;
adam@1352	2883 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2884 ctx->heap.front += len+1;
adam@1352	2885 return r;
adam@1352	2886 } else
adam@1352	2887 return "<Invalid time>";
adam@1352	2888 }
adam@1352	2889
adam@1629	2890 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2891 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2892 }
adam@1629	2893
adamc@311	2894 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2895 char *endptr;
adamc@311	2896 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2897
adamc@288	2898 if (s != '\0' && endptr == '\0') {
adamc@311	2899 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2900 *r = n;
adamc@288	2901 return r;
adamc@288	2902 } else
adamc@288	2903 return NULL;
adamc@288	2904 }
adamc@289	2905
adamc@311	2906 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2907 char *endptr;
adamc@311	2908 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2909
adamc@289	2910 if (s != '\0' && endptr == '\0') {
adamc@311	2911 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2912 *r = n;
adamc@289	2913 return r;
adamc@289	2914 } else
adamc@289	2915 return NULL;
adamc@289	2916 }
adamc@289	2917
adamc@821	2918 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2919 if (s[0] == 0) {
adamc@821	2920 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2921 r[0] = 0;
adamc@821	2922 return r;
adamc@821	2923 } else if (s[1] != 0)
adamc@821	2924 return NULL;
adamc@821	2925 else {
adamc@821	2926 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2927 r[0] = s[0];
adamc@821	2928 return r;
adamc@821	2929 }
adamc@821	2930 }
adamc@821	2931
adamc@311	2932 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2933 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2934 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2935
adamc@289	2936 if (!strcasecmp (s, "True"))
adamc@289	2937 return &true;
adamc@289	2938 else if (!strcasecmp (s, "False"))
adamc@289	2939 return &false;
adamc@289	2940 else
adamc@289	2941 return NULL;
adamc@289	2942 }
adamc@292	2943
adamc@436	2944 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2945 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2946 struct tm stm = {};
adam@1392	2947 stm.tm_isdst = -1;
adamc@436	2948
adamc@439	2949 if (dot) {
adamc@439	2950 *dot = 0;
adamc@439	2951 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2952 *dot = '.';
adamc@439	2953 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2954 r->seconds = mktime(&stm);
adam@1365	2955 r->microseconds = 0;
adamc@439	2956 return r;
adamc@439	2957 }
adamc@439	2958 else {
adamc@439	2959 *dot = '.';
adamc@439	2960 return NULL;
adamc@439	2961 }
adamc@436	2962 }
adamc@439	2963 else {
adam@2072	2964 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2965 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2966 r->seconds = mktime(&stm);
adam@1365	2967 r->microseconds = 0;
adamc@439	2968 return r;
adam@2072	2969 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2970 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2971 r->seconds = mktime(&stm);
adam@2072	2972 r->microseconds = 0;
adam@2072	2973 return r;
adam@2072	2974 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2975 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2976 r->seconds = mktime(&stm);
adam@1365	2977 r->microseconds = 0;
adamc@439	2978 return r;
adam@1632	2979 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2980 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2981 r->seconds = mktime(&stm);
adam@1632	2982 r->microseconds = 0;
adam@1632	2983 return r;
adamc@439	2984 }
adamc@439	2985 else
adamc@439	2986 return NULL;
adamc@439	2987 }
adamc@436	2988 }
adamc@436	2989
adam@1352	2990 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2991 char *end = strchr(s, 0);
adam@1374	2992 struct tm stm = {};
adam@1392	2993 stm.tm_isdst = -1;
adam@1352	2994
adam@1352	2995 if (strptime(s, fmt, &stm) == end) {
adam@1352	2996 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2997 r->seconds = mktime(&stm);
adam@1365	2998 r->microseconds = 0;
adam@1352	2999 return r;
adam@1352	3000 }
adam@1352	3001 else
adam@1352	3002 return NULL;
adam@1352	3003 }
adam@1352	3004
adamc@311	3005 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	3006 char *endptr;
adamc@311	3007 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	3008
adamc@292	3009 if (s != '\0' && endptr == '\0')
adamc@292	3010 return n;
adamc@292	3011 else
adam@1444	3012 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	3013 }
adamc@293	3014
adamc@682	3015 #include <errno.h>
adamc@682	3016
adamc@678	3017 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	3018 unsigned long long n;
adamc@682	3019
adamc@682	3020 if (sscanf(s, "%llu", &n) < 1)
adam@1444	3021 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	3022 else {
adamc@682	3023 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	3024 return ch;
adamc@682	3025 }
adamc@682	3026 }
adamc@682	3027
adamc@682	3028 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	3029 char *endptr;
adamc@682	3030 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	3031
adamc@678	3032 if (s != '\0' && endptr == '\0')
adamc@678	3033 return n;
adamc@678	3034 else
adam@1444	3035 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	3036 }
adamc@678	3037
adamc@311	3038 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	3039 char *endptr;
adamc@311	3040 uw_Basis_float n = strtod(s, &endptr);
adamc@293	3041
adamc@293	3042 if (s != '\0' && endptr == '\0')
adamc@293	3043 return n;
adamc@293	3044 else
adam@1444	3045 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3046 }
adamc@293	3047
adamc@821	3048 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3049 if (s[0] == 0)
adamc@821	3050 return 0;
adamc@821	3051 else if (s[1] != 0)
adam@1444	3052 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3053 else
adamc@821	3054 return s[0];
adamc@821	3055 }
adamc@821	3056
adamc@311	3057 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3058 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3059 return uw_Basis_True;
adamc@296	3060 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3061 return uw_Basis_False;
adamc@293	3062 else
adam@1444	3063 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3064 }
adamc@436	3065
adam@1352	3066 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3067 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3068 struct tm stm = {};
adam@1392	3069 stm.tm_isdst = -1;
adam@1352	3070
adam@1352	3071 if (dot) {
adam@1352	3072 *dot = 0;
adam@1352	3073 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3074 *dot = '.';
adam@1410	3075 char usec[] = "000000";
adam@1410	3076 int len = strlen(dot+1);
adam@1410	3077 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3078 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3079 return r;
adam@1352	3080 }
adam@1352	3081 else {
adam@1352	3082 *dot = '.';
adam@1444	3083 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3084 }
adam@1352	3085 }
adam@1352	3086 else {
adam@1352	3087 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3088 uw_Basis_time r = { mktime(&stm) };
adam@1365	3089 return r;
adam@1352	3090 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3091 uw_Basis_time r = { mktime(&stm) };
adam@1365	3092 return r;
adam@1352	3093 } else
adam@1444	3094 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3095 }
adam@1352	3096 }
adam@1352	3097
adamc@436	3098 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3099 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3100 struct tm stm = {};
adam@1392	3101 stm.tm_isdst = -1;
adamc@436	3102
adamc@438	3103 if (dot) {
adamc@438	3104 *dot = 0;
adamc@438	3105 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3106 *dot = '.';
adam@1365	3107 {
adam@1365	3108 uw_Basis_time r = { mktime(&stm) };
adam@1365	3109 return r;
adam@1365	3110 }
adamc@438	3111 }
adamc@438	3112 else {
adamc@438	3113 *dot = '.';
adam@1444	3114 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3115 }
adamc@438	3116 }
adamc@438	3117 else {
adam@2072	3118 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3119 uw_Basis_time r = { mktime(&stm) };
adam@2072	3120 return r;
adam@2072	3121 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3122 uw_Basis_time r = { mktime(&stm) };
adam@1365	3123 return r;
adam@1365	3124 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3125 uw_Basis_time r = { mktime(&stm) };
adam@1365	3126 return r;
adam@1632	3127 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3128 uw_Basis_time r = { mktime(&stm) };
adam@1632	3129 return r;
adam@1365	3130 } else
adam@1444	3131 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3132 }
adamc@436	3133 }
adamc@457	3134
adam@1352	3135 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3136 char *end = strchr(s, 0);
adamc@939	3137 struct tm stm = {};
adam@1392	3138 stm.tm_isdst = -1;
adamc@939	3139
adam@1365	3140 if (strptime(s, fmt, &stm) == end) {
adam@1365	3141 uw_Basis_time r = { mktime(&stm) };
adam@1365	3142 return r;
adam@1365	3143 } else
adam@1444	3144 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3145 }
adamc@939	3146
adamc@742	3147 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3148 char *r = ctx->heap.front;
adamc@742	3149 uw_Basis_blob b = {len, r};
adamc@742	3150
adamc@742	3151 uw_check_heap(ctx, len);
adamc@742	3152
adam@1992	3153 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3154 s += 2;
adam@1992	3155
adam@1992	3156 while (*s) {
adam@1992	3157 int n;
adam@1992	3158 sscanf(s, "%02x", &n);
adam@1992	3159 *r++ = n;
adam@1992	3160 s += 2;
adam@1992	3161 }
adam@1992	3162 } else {
adam@1992	3163 while (*s) {
adam@1992	3164 if (s[0] == '\\') {
adam@1992	3165 if (s[1] == '\\') {
adam@1992	3166 *r++ = '\\';
adam@1992	3167 s += 2;
adam@1992	3168 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3169 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3170 s += 4;
adam@1992	3171 }
adam@1992	3172 else {
adam@1992	3173 *r++ = '\\';
adam@1992	3174 ++s;
adam@1992	3175 }
adam@1992	3176 } else {
adam@1992	3177 *r++ = s[0];
adamc@742	3178 ++s;
adamc@742	3179 }
adamc@742	3180 }
adamc@742	3181 }
adamc@742	3182
adamc@742	3183 b.size = r - ctx->heap.front;
adamc@742	3184 ctx->heap.front = r;
adam@1992	3185
adamc@742	3186 return b;
adamc@742	3187 }
adamc@742	3188
adam@1402	3189 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3190
adamc@463	3191 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3192 int len = strlen(c);
adamc@854	3193 char *p = ctx->outHeaders.start;
adamc@474	3194
adamc@1134	3195 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3196 char *p2;
adamc@474	3197 p += 13;
adamc@474	3198 p2 = strchr(p, '=');
adamc@474	3199
adamc@474	3200 if (p2) {
adamc@474	3201 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3202
adamc@474	3203 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3204 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3205 return NULL;
adamc@1052	3206 else {
adamc@1052	3207 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3208 memcpy(ret, p2+1, sz);
adamc@1052	3209 ret[sz] = 0;
adamc@1052	3210 return ret;
adamc@1052	3211 }
adamc@474	3212 }
adamc@474	3213 }
adamc@474	3214 }
adamc@463	3215
adamc@1134	3216 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3217 char *p2;
adamc@1051	3218
adamc@854	3219 while (1) {
adamc@1051	3220 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3221 if ((p2 = strchr(p, ';'))) {
adamc@1051	3222 size_t n = p2 - (p + len);
adamc@1051	3223 char *r = uw_malloc(ctx, n);
adamc@1051	3224 memcpy(r, p + 1 + len, n-1);
adamc@1051	3225 r[n-1] = 0;
adamc@1051	3226 return r;
adamc@1051	3227 } else
adamc@1051	3228 return p + 1 + len;
adamc@1134	3229 } else if ((p = strchr(p, ';')))
adamc@854	3230 p += 2;
adamc@463	3231 else
adamc@463	3232 return NULL;
adamc@463	3233 }
adamc@463	3234 }
adamc@792	3235
adamc@792	3236 return NULL;
adamc@457	3237 }
adamc@462	3238
adam@1877	3239 static void set_cookie(uw_context ctx) {
adam@1877	3240 if (ctx->usedSig)
adam@1877	3241 ctx->needsResig = 1;
adam@1877	3242 }
adam@1877	3243
adamc@1050	3244 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	3245 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3246 uw_write_header(ctx, c);
adamc@462	3247 uw_write_header(ctx, "=");
adamc@462	3248 uw_write_header(ctx, v);
adamc@466	3249 uw_write_header(ctx, "; path=");
adamc@466	3250 uw_write_header(ctx, prefix);
adamc@1050	3251 if (expires) {
adamc@1050	3252 char formatted[30];
adam@1392	3253 struct tm tm = {};
adam@1392	3254 tm.tm_isdst = -1;
adamc@1050	3255
adam@1365	3256 gmtime_r(&expires->seconds, &tm);
adamc@1050	3257
adamc@1050	3258 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3259
adamc@1050	3260 uw_write_header(ctx, "; expires=");
adamc@1050	3261 uw_write_header(ctx, formatted);
adamc@1050	3262 }
adamc@1050	3263 if (secure)
adamc@1050	3264 uw_write_header(ctx, "; secure");
adamc@462	3265 uw_write_header(ctx, "\r\n");
adam@1877	3266 set_cookie(ctx);
adamc@462	3267
adamc@462	3268 return uw_unit_v;
adamc@462	3269 }
adamc@667	3270
adamc@1050	3271 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3272 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3273 uw_write_header(ctx, c);
adamc@1050	3274 uw_write_header(ctx, "=; path=");
adamc@1050	3275 uw_write_header(ctx, prefix);
adamc@1052	3276 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3277 set_cookie(ctx);
adamc@1050	3278
adamc@1050	3279 return uw_unit_v;
adamc@1050	3280 }
adamc@1050	3281
adamc@1113	3282 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3283
adamc@682	3284 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3285 unsigned i;
adamc@682	3286 delta *d;
adamc@671	3287
adamc@682	3288 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3289 if (ctx->deltas[i].client == client)
adamc@682	3290 return &ctx->deltas[i];
adamc@671	3291
adamc@682	3292 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3293 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3294 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3295
adamc@682	3296 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3297 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3298 }
adamc@671	3299
adamc@682	3300 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3301 d->client = client;
adam@1369	3302 uw_buffer_reset(&d->msgs);
adamc@682	3303 return d;
adamc@671	3304 }
adamc@671	3305
adamc@668	3306 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3307 if (ctx->client == NULL)
adamc@682	3308 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3309
adamc@682	3310 return new_channel(ctx->client);
adamc@668	3311 }
adamc@668	3312
adamc@668	3313 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3314 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3315 size_t len;
adamc@682	3316 int preLen;
adamc@682	3317 char pre[INTS_MAX + 2];
adamc@668	3318
adamc@682	3319 len = strlen(msg);
adamc@682	3320
adamc@682	3321 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3322
adam@1369	3323 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3324 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3325 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3326
adamc@671	3327 return uw_unit_v;
adamc@668	3328 }
adamc@671	3329
adam@1327	3330 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3331 int i;
adamc@1131	3332 cleanup *cl;
adamc@1131	3333
adamc@1131	3334 if (ctx->client)
adamc@1131	3335 release_client(ctx->client);
adamc@1131	3336
adamc@1131	3337 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3338 cl->func(cl->arg);
adamc@1131	3339
adamc@1131	3340 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3341
adamc@1131	3342 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3343 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3344 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3345
adamc@1131	3346 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3347 if (ctx->transactionals[i].free)
adam@1327	3348 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3349
adam@1941	3350 if (ctx->app && ctx->transaction_started) {
adam@1941	3351 ctx->transaction_started = 0;
adam@1941	3352 return ctx->app->db_rollback(ctx);
adam@1941	3353 } else
adam@1941	3354 return 0;
adamc@1131	3355 }
adamc@1131	3356
adam@1956	3357 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	3358 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3359
adam@1877	3360 extern int uw_hash_blocksize;
adam@1877	3361
adam@1877	3362 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3363
adam@1877	3364 static char find_sig(char haystack) {
adam@1877	3365 int i;
adam@1877	3366 char *s = strstr(haystack, sig_intro);
adam@1877	3367
adam@1877	3368 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3369 return NULL;
phurst@1981	3370
adam@1877	3371 s += sizeof sig_intro - 1;
adam@1877	3372
adam@1877	3373 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3374 if (!isxdigit((int)s[i]))
adam@1877	3375 return NULL;
adam@1877	3376
adam@1877	3377 if (s[i] != '"')
adam@1877	3378 return NULL;
adam@1877	3379
adam@1877	3380 return s;
adam@1877	3381 }
adam@1877	3382
adam@2033	3383 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3384
adam@1938	3385 int uw_commit(uw_context ctx) {
adamc@1104	3386 int i;
adam@1877	3387 char *sig;
adamc@1104	3388
adamc@1131	3389 if (uw_has_error(ctx)) {
adam@1327	3390 uw_rollback(ctx, 0);
adam@1938	3391 return 0;
adamc@1131	3392 }
adamc@1131	3393
adamc@1104	3394 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3395 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3396 if (ctx->transactionals[i].commit) {
adamc@1083	3397 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3398 if (uw_has_error(ctx)) {
adam@1327	3399 uw_rollback(ctx, 0);
adam@1938	3400 return 0;
adamc@1131	3401 }
adamc@1131	3402 }
adamc@771	3403
adam@2033	3404 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3405 if (ctx->used_deltas > 0)
adam@2033	3406 pthread_mutex_lock(&message_send_mutex);
adam@2033	3407
adam@2000	3408 if (ctx->transaction_started) {
adam@2000	3409 int code = ctx->app->db_commit(ctx);
adam@2000	3410
adam@2000	3411 if (code) {
adam@2033	3412 if (ctx->used_deltas > 0)
adam@2033	3413 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3414
adam@2000	3415 if (ctx->client)
adam@2000	3416 release_client(ctx->client);
adam@2000	3417
adam@2000	3418 if (code == -1) {
adam@2000	3419 // This case is for a serialization failure, which is not really an "error."
adam@2000	3420 // The transaction will restart, so we should rollback any transactionals
adam@2000	3421 // that triggered above.
adam@2000	3422
adam@2000	3423 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3424 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3425 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3426
adam@2000	3427 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3428 if (ctx->transactionals[i].free)
adam@2000	3429 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3430
grrwlf@2030	3431 return 1;
adam@2000	3432 }
adam@2000	3433
adam@2000	3434 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3435 if (ctx->transactionals[i].free)
adam@2000	3436 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3437
adam@2000	3438 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3439 return 0;
adam@2000	3440 }
adam@2000	3441 }
adam@2000	3442
adamc@1104	3443 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3444 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3445 if (ctx->transactionals[i].commit) {
adamc@1083	3446 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3447 if (uw_has_error(ctx)) {
adam@2033	3448 if (ctx->used_deltas > 0)
adam@2033	3449 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3450
adam@2033	3451 if (ctx->client)
adam@2033	3452 release_client(ctx->client);
adam@2033	3453
adam@2033	3454 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3455 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3456 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3457
adam@2033	3458 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3459 if (ctx->transactionals[i].free)
adam@2033	3460 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3461
adam@1938	3462 return 0;
adamc@1131	3463 }
adamc@1131	3464 }
adamc@1131	3465
adamc@682	3466 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3467 delta *d = &ctx->deltas[i];
adamc@682	3468 client *c = find_client(d->client);
adamc@682	3469
adam@1551	3470 assert (c != NULL);
adam@1551	3471 assert(c->mode == USED);
adamc@682	3472
adam@1447	3473 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3474 }
adamc@682	3475
adam@2033	3476 if (ctx->used_deltas > 0)
adam@2033	3477 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3478
adamc@682	3479 if (ctx->client)
adamc@685	3480 release_client(ctx->client);
adamc@771	3481
adamc@1104	3482 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3483 if (ctx->transactionals[i].free)
adam@1327	3484 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3485
vshabanoff@1726	3486 uw_check(ctx, 1);
vshabanoff@1726	3487 *ctx->page.front = 0;
adam@1413	3488
adam@1956	3489 if (!ctx->returning_indirectly
adam@1956	3490 && (ctx->app->is_html5
adam@1956	3491 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3492 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3493 char *s;
adam@1728	3494
adam@1728	3495 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3496 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3497 s = strchr(s, '<');
adam@1728	3498 if (s == NULL) {
adam@1728	3499 // Weird. Document has no tags!
adam@1728	3500
adam@1728	3501 uw_write(ctx, "<head></head><body></body>");
adam@1728	3502 uw_check(ctx, 1);
adam@1728	3503 *ctx->page.front = 0;
adam@1728	3504 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3505 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3506
adam@1729	3507 // Any freeform JavaScript to include?
adam@1729	3508 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3509 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3510 size_t lenP = lenH + 40 + len;
adam@1729	3511 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3512
adam@1729	3513 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3514 start += ctx->page.start - oldPage;
adam@1729	3515 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3516 ctx->page.front += lenP;
adam@1729	3517 memcpy(start, ctx->script_header, lenH);
adam@1729	3518 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3519 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3520 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3521 } else {
adam@1729	3522 size_t lenH = strlen(ctx->script_header);
adam@1729	3523 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3524
adam@1729	3525 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3526 start += ctx->page.start - oldPage;
adam@1729	3527 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3528 ctx->page.front += lenH;
adam@1729	3529 memcpy(start, ctx->script_header, lenH);
adam@1729	3530 }
adam@1728	3531 } else {
adam@1728	3532 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3533
adam@1729	3534 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3535 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3536 size_t lenP = lenH + 53 + len;
adam@1729	3537 char start = s, oldPage = ctx->page.start;
adam@1729	3538
adam@1729	3539 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3540 start += ctx->page.start - oldPage;
adam@1729	3541 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3542 ctx->page.front += lenP;
adam@1729	3543 memcpy(start, "<head>", 6);
adam@1729	3544 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3545 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3546 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3547 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3548 } else {
adam@1729	3549 size_t lenH = strlen(ctx->script_header);
adam@1729	3550 size_t lenP = lenH + 13;
adam@1729	3551 char start = s, oldPage = ctx->page.start;
adam@1729	3552
adam@1729	3553 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3554 start += ctx->page.start - oldPage;
adam@1729	3555 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3556 ctx->page.front += lenP;
adam@1729	3557 memcpy(start, "<head>", 6);
adam@1729	3558 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3559 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3560 }
adamc@916	3561 }
adamc@916	3562 }
adam@1877	3563
adam@1877	3564 if (ctx->needsResig) {
adam@1877	3565 sig = find_sig(ctx->page.start);
adam@1877	3566 if (sig) {
adam@1877	3567 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3568
adam@1877	3569 do {
adam@1877	3570 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3571 sig = find_sig(sig);
adam@1877	3572 } while (sig);
adam@1877	3573 }
adam@1877	3574 }
adam@1938	3575
adam@1938	3576 return 0;
adamc@671	3577 }
adamc@671	3578
adamc@683	3579
adamc@1113	3580 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3581
adam@2001	3582 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3583 uw_callback_with_retry free) {
adamc@771	3584 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3585 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3586 // Exceeded limit on number of transactionals.
adam@2001	3587 return -1;
adamc@1084	3588 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3589 ++ctx->n_transactionals;
adamc@771	3590 }
adamc@771	3591
adamc@771	3592 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3593 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3594 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3595 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3596
adam@2001	3597 return 0;
adamc@771	3598 }
adamc@771	3599
adamc@683	3600
adamc@683	3601 // "Garbage collection"
adamc@683	3602
adamc@1121	3603 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3604 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3605
adamc@1121	3606 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3607 int r = setjmp(ctx->jmp_buf);
adamc@683	3608
adamc@1121	3609 if (r == 0)
adamc@1121	3610 uw_do_expunge(ctx, cli, data);
adamc@1121	3611 else
adamc@1121	3612 ctx->app->db_rollback(ctx);
adamc@1121	3613
adamc@1121	3614 uw_post_expunge(ctx, data);
adamc@683	3615
adamc@683	3616 return r;
adamc@683	3617 }
adamc@683	3618
adamc@683	3619 void uw_prune_clients(uw_context ctx) {
adamc@683	3620 client c, next, *prev = NULL;
adamc@683	3621 time_t cutoff;
adamc@683	3622
adamc@1094	3623 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3624
adamc@683	3625 pthread_mutex_lock(&clients_mutex);
adam@1707	3626 pruning_thread = pthread_self();
adam@1707	3627 pruning_thread_initialized = 1;
adamc@683	3628
adamc@683	3629 for (c = clients_used; c; c = next) {
adamc@683	3630 next = c->next;
adamc@683	3631 pthread_mutex_lock(&c->lock);
adamc@685	3632 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3633 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3634 if (prev)
adamc@683	3635 prev->next = next;
adamc@683	3636 else
adamc@683	3637 clients_used = next;
adamc@683	3638 while (fk == UNLIMITED_RETRY) {
adam@1941	3639 uw_reset(ctx);
adamc@1121	3640 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3641 if (fk == UNLIMITED_RETRY)
adamc@684	3642 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3643 }
adamc@684	3644 if (fk == SUCCESS)
adamc@684	3645 free_client(c);
adamc@1121	3646 else
adamc@856	3647 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3648 }
adamc@683	3649 else
adamc@683	3650 prev = c;
adamc@683	3651 pthread_mutex_unlock(&c->lock);
adamc@683	3652 }
adamc@683	3653
adamc@683	3654 pthread_mutex_unlock(&clients_mutex);
adamc@683	3655 }
adamc@687	3656
adamc@687	3657 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3658 int r = setjmp(ctx->jmp_buf);
adamc@687	3659
adamc@687	3660 if (r == 0) {
adam@1936	3661 uw_ensure_transaction(ctx);
adamc@1094	3662 ctx->app->initializer(ctx);
adamc@1094	3663 if (ctx->app->db_commit(ctx))
adamc@687	3664 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3665 }
adamc@687	3666
adamc@687	3667 return r;
adamc@687	3668 }
adamc@717	3669
adamc@1065	3670 static int url_bad(uw_Basis_string s) {
adamc@1065	3671 for (; *s; ++s)
adamc@1153	3672 if (!isgraph((int)*s))
adamc@1065	3673 return 1;
adamc@1065	3674
adamc@1065	3675 return 0;
adamc@1065	3676 }
adamc@1065	3677
adamc@717	3678 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3679 if (url_bad(s))
adamc@1065	3680 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3681 if (ctx->app->check_url(s))
adamc@770	3682 return s;
adamc@770	3683 else
adamc@770	3684 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3685 }
adamc@734	3686
adamc@770	3687 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3688 if (url_bad(s))
adamc@1065	3689 return NULL;
adamc@1094	3690 if (ctx->app->check_url(s))
adamc@770	3691 return s;
adamc@770	3692 else
adamc@770	3693 return NULL;
adamc@770	3694 }
adamc@770	3695
adam@1465	3696 static int mime_format(const char *s) {
adamc@770	3697 for (; *s; ++s)
grrwlf@2024	3698 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3699 return 0;
adamc@770	3700
adamc@770	3701 return 1;
adamc@770	3702 }
adamc@770	3703
adamc@741	3704 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3705 if (!mime_format(s))
adamc@770	3706 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3707
adamc@1094	3708 if (ctx->app->check_mime(s))
adamc@770	3709 return s;
adamc@770	3710 else
adamc@770	3711 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3712 }
adamc@770	3713
adamc@770	3714 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3715 if (!mime_format(s))
adamc@770	3716 return NULL;
adamc@770	3717
adamc@1094	3718 if (ctx->app->check_mime(s))
adamc@770	3719 return s;
adamc@770	3720 else
adamc@770	3721 return NULL;
adamc@741	3722 }
adamc@741	3723
adam@1465	3724 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3725 if (!mime_format(s))
adam@1465	3726 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3727
adam@1465	3728 if (ctx->app->check_requestHeader(s))
adam@1465	3729 return s;
adam@1465	3730 else
adam@1465	3731 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3732 }
adam@1465	3733
adam@1465	3734 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3735 if (!mime_format(s))
adam@1465	3736 return NULL;
adam@1465	3737
adam@1465	3738 if (ctx->app->check_requestHeader(s))
adam@1465	3739 return s;
adam@1465	3740 else
adam@1465	3741 return NULL;
adam@1465	3742 }
adam@1465	3743
adam@1465	3744 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3745 if (!mime_format(s))
adam@1465	3746 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3747
adam@1465	3748 if (ctx->app->check_responseHeader(s))
adam@1465	3749 return s;
adam@1465	3750 else
adam@1465	3751 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3752 }
adam@1465	3753
adam@1799	3754 static int envVar_format(const char *s) {
adam@1799	3755 for (; *s; ++s)
adam@1799	3756 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3757 return 0;
adam@1799	3758
adam@1799	3759 return 1;
adam@1799	3760 }
adam@1799	3761
adam@1465	3762 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3763 if (!envVar_format(s))
adam@1465	3764 return NULL;
adam@1465	3765
adam@1465	3766 if (ctx->app->check_responseHeader(s))
adam@1465	3767 return s;
adam@1465	3768 else
adam@1465	3769 return NULL;
adam@1465	3770 }
adam@1465	3771
adam@1799	3772 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3773 if (!envVar_format(s))
adam@1799	3774 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3775
adam@1799	3776 if (ctx->app->check_envVar(s))
adam@1799	3777 return s;
adam@1799	3778 else
adam@1799	3779 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3780 }
adam@1799	3781
adam@1799	3782 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3783 if (!mime_format(s))
adam@1799	3784 return NULL;
adam@1799	3785
adam@1799	3786 if (ctx->app->check_envVar(s))
adam@1799	3787 return s;
adam@1799	3788 else
adam@1799	3789 return NULL;
adam@1799	3790 }
adam@1799	3791
adam@1465	3792 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3793 return uw_Basis_requestHeader(ctx, name);
adam@1465	3794 }
adam@1465	3795
adam@1465	3796 static int mime_value_format(const char *s) {
adam@1465	3797 for (; *s; ++s)
adam@1465	3798 if (s == '\r' \|\| s == '\n')
adam@1465	3799 return 0;
adam@1465	3800
adam@1465	3801 return 1;
adam@1465	3802 }
adam@1465	3803
adam@1465	3804 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3805 if (!mime_value_format(value))
adam@1465	3806 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3807
adam@1465	3808 uw_write_header(ctx, name);
adam@1465	3809 uw_write_header(ctx, ": ");
adam@1465	3810 uw_write_header(ctx, value);
adam@1465	3811 uw_write_header(ctx, "\r\n");
adam@1465	3812
adam@1465	3813 return uw_unit_v;
adam@1465	3814 }
adam@1465	3815
adam@1799	3816 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3817 if (ctx->get_env)
adam@1993	3818 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3819 else
adam@1994	3820 return getenv(name);
adam@1799	3821 }
adam@1799	3822
adamc@734	3823 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3824 return s ? s : "";
adamc@734	3825 }
adamc@734	3826
adamc@734	3827 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3828 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3829 int i;
phurst@1981	3830
adamc@734	3831 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3832 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3833
adamc@734	3834 return r;
adamc@734	3835 }
adamc@734	3836
adam@1512	3837 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3838 * optimizations that would enable timing attacks. See:
adam@1512	3839 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3840 */
adam@1512	3841 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3842 int i, x = 0, len1 = strlen(s1);
adam@1512	3843
adam@1512	3844 if (len1 != strlen(s2)) return 0;
adam@1512	3845
adam@1512	3846 for (i = 0; i < len1; ++i) {
adam@1512	3847 __asm__ __volatile__ ("");
adam@1512	3848 x \|= s1[i] ^ s2[i];
adam@1512	3849 }
adam@1512	3850
adam@1512	3851 return x == 0;
adam@1512	3852 }
adam@1512	3853
adamc@734	3854 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3855 ctx->usedSig = 1;
adamc@1094	3856 return ctx->app->cookie_sig(ctx);
adamc@734	3857 }
adamc@737	3858
adamc@737	3859 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3860 return f.name;
adamc@737	3861 }
adamc@737	3862
adamc@740	3863 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3864 return f.type;
adamc@740	3865 }
adamc@740	3866
adamc@745	3867 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3868 return b.size;
adamc@745	3869 }
adamc@745	3870
adamc@1119	3871 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3872 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3873
adamc@1119	3874 return b;
adamc@1119	3875 }
adamc@1119	3876
adamc@737	3877 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3878 return f.data;
adamc@737	3879 }
adamc@741	3880
adam@1347	3881 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3882 return pb.type;
adam@1347	3883 }
adam@1347	3884
adam@1347	3885 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3886 return pb.data;
adam@1347	3887 }
adam@1347	3888
adam@1471	3889 static char *old_headers(uw_context ctx) {
adam@1471	3890 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3891 return NULL;
adam@1471	3892 else {
adam@1471	3893 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3894
adam@1471	3895 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3896 return NULL;
adam@1471	3897 else {
adam@1471	3898 s = strchr(s+15, '\n');
adam@1471	3899 if (s == NULL)
adam@1471	3900 return NULL;
adam@1471	3901 else
adam@1471	3902 return uw_strdup(ctx, s+1);
adam@1471	3903 }
adam@1471	3904 }
adam@1471	3905 }
adam@1471	3906
adamc@741	3907 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3908 cleanup *cl;
adamc@741	3909 int len;
adam@1471	3910 char *oldh;
adamc@741	3911
adam@1451	3912 if (!ctx->allowed_to_return_indirectly)
adam@1451	3913 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3914
adamc@1065	3915 ctx->returning_indirectly = 1;
adam@1471	3916 oldh = old_headers(ctx);
adam@1369	3917 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3918 uw_buffer_reset(&ctx->page);
adamc@741	3919
adamc@856	3920 uw_write_header(ctx, on_success);
adamc@856	3921 uw_write_header(ctx, "Content-Type: ");
adamc@741	3922 uw_write_header(ctx, mimeType);
adam@1934	3923 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3924 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3925 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3926 ctx->outHeaders.front += len;
adamc@1066	3927 uw_write_header(ctx, "\r\n");
adam@1471	3928 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3929
adam@1369	3930 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3931
adamc@741	3932 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3933 cl->func(cl->arg);
adamc@741	3934
adamc@741	3935 ctx->cleanup_front = ctx->cleanup;
adamc@741	3936
adamc@1065	3937 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3938 }
adamc@1065	3939
adam@2046	3940 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3941 uw_buffer_reset(&ctx->page);
adam@2046	3942 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3943 }
adam@2046	3944
adam@1932	3945 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3946 cleanup *cl;
adam@1932	3947 int len;
adam@1932	3948 char *oldh;
adam@1932	3949
adam@1932	3950 if (!ctx->allowed_to_return_indirectly)
adam@1932	3951 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3952
adam@1932	3953 ctx->returning_indirectly = 1;
adam@1932	3954 oldh = old_headers(ctx);
adam@1932	3955 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3956
adam@1932	3957 uw_write_header(ctx, on_success);
adam@1932	3958 uw_write_header(ctx, "Content-Type: ");
adam@1932	3959 uw_write_header(ctx, mimeType);
adam@1934	3960 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3961 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3962 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3963 ctx->outHeaders.front += len;
adam@1932	3964 uw_write_header(ctx, "\r\n");
adam@1932	3965 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3966
adam@1932	3967 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3968 cl->func(cl->arg);
adam@1932	3969
adam@1932	3970 ctx->cleanup_front = ctx->cleanup;
adam@1932	3971
adam@1932	3972 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3973 }
adam@1932	3974
adamc@1065	3975 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3976 cleanup *cl;
adamc@1066	3977 char *s;
adam@1471	3978 char *oldh;
adamc@1065	3979
adam@1451	3980 if (!ctx->allowed_to_return_indirectly)
adam@1451	3981 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3982
adamc@1065	3983 ctx->returning_indirectly = 1;
adam@1471	3984 oldh = old_headers(ctx);
adam@1369	3985 uw_buffer_reset(&ctx->page);
adam@1369	3986 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3987 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	3988 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	3989 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	3990
adam@1409	3991 if (on_success[0])
adam@1409	3992 uw_write_header(ctx, on_redirect);
adam@1409	3993 else
adam@1409	3994 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	3995 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	3996 if (s) {
adamc@1066	3997 char *s2;
adam@1409	3998 if (s[0] == '\n') ++s;
adam@1409	3999 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	4000 *s2 = 0;
adamc@1066	4001 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	4002 uw_write_header(ctx, s);
adamc@1066	4003 uw_write_header(ctx, "\n");
adamc@1066	4004 }
adamc@1066	4005 }
adamc@1066	4006 }
adamc@1066	4007
adamc@1065	4008 uw_write_header(ctx, "Location: ");
adamc@1065	4009 uw_write_header(ctx, url);
adamc@1065	4010 uw_write_header(ctx, "\r\n\r\n");
adam@1471	4011 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	4012
adamc@1065	4013 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	4014 cl->func(cl->arg);
adamc@1065	4015
adamc@1065	4016 ctx->cleanup_front = ctx->cleanup;
adamc@1065	4017
adamc@1065	4018 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	4019 }
adamc@874	4020
adamc@874	4021 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	4022 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	4023
adamc@874	4024 for (; *s; ++s) {
adamc@874	4025 if (s[0] == '\'') {
adamc@874	4026 *r++ = '\'';
adamc@874	4027 for (++s; *s; ++s) {
adamc@874	4028 if (s[0] == '\'') {
adamc@874	4029 *r++ = '\'';
adamc@874	4030 break;
adamc@874	4031 } else if (s[0] == '\\') {
adam@1467	4032 *r++ = '\\';
adam@1467	4033 *r++ = s[1];
adam@1467	4034 ++s;
adamc@874	4035 } else
adamc@874	4036 *r++ = s[0];
adamc@874	4037 }
adamc@874	4038 if (*s == 0) break;
adam@1467	4039 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	4040 s += 3;
adamc@874	4041 else
adamc@874	4042 *r++ = s[0];
adamc@874	4043 }
adamc@874	4044
adam@1467	4045 *r = 0;
adam@1467	4046 return ret;
adamc@874	4047 }
adamc@874	4048
adamc@922	4049 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4050 va_list ap;
adamc@922	4051 size_t len = 1;
adamc@922	4052 char s, r, *s2;
phurst@1981	4053
adamc@922	4054 va_start(ap, ctx);
adamc@922	4055 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4056 len += strlen(s);
adamc@922	4057 va_end(ap);
adamc@922	4058
adamc@922	4059 r = uw_malloc(ctx, len);
adamc@922	4060 va_start(ap, ctx);
adamc@922	4061 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4062 while (*s)
adamc@922	4063 s2++ = s++;
adamc@922	4064 va_end(ap);
adamc@922	4065 *s2 = 0;
adamc@922	4066
adamc@922	4067 return r;
adamc@922	4068 }
adamc@1006	4069
adam@1365	4070 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4071
adamc@1006	4072 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4073 uw_Basis_time r = { time(NULL) };
adam@1365	4074 return r;
adamc@1006	4075 }
adamc@1061	4076
adam@1369	4077 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4078 tm.seconds += n;
adam@1365	4079 return tm;
adamc@1138	4080 }
adamc@1138	4081
adam@1514	4082 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4083 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4084 }
adam@1514	4085
adam@1685	4086 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4087 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4088 }
adam@1685	4089
adam@2187	4090 uw_Basis_time uw_Basis_fromMilliseconds(uw_context ctx, uw_Basis_int n) {
adam@2187	4091 uw_Basis_time tm = {n / 1000, n % 1000 * 1000};
adam@2187	4092 return tm;
adam@2187	4093 }
adam@2187	4094
adam@1685	4095 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4096 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4097 }
adam@1685	4098
adam@1514	4099 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4100 return tm.seconds;
adam@1514	4101 }
adam@1514	4102
phurst@1971	4103 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	4104 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4105 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4106 .tm_isdst = -1 };
phurst@1984	4107 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4108 return r;
phurst@1971	4109 }
phurst@1971	4110
phurst@1971	4111 uw_Basis_int uw_Basis_datetimeYear(uw_context ctx, uw_Basis_time time) {
phurst@1971	4112 struct tm tm;
phurst@1982	4113 localtime_r(&time.seconds, &tm);
phurst@1971	4114 return tm.tm_year + 1900;
phurst@1971	4115 }
phurst@1971	4116
phurst@1971	4117 uw_Basis_int uw_Basis_datetimeMonth(uw_context ctx, uw_Basis_time time) {
phurst@1971	4118 struct tm tm;
phurst@1982	4119 localtime_r(&time.seconds, &tm);
phurst@1971	4120 return tm.tm_mon;
phurst@1971	4121 }
phurst@1971	4122
phurst@1971	4123 uw_Basis_int uw_Basis_datetimeDay(uw_context ctx, uw_Basis_time time) {
phurst@1971	4124 struct tm tm;
phurst@1982	4125 localtime_r(&time.seconds, &tm);
phurst@1971	4126 return tm.tm_mday;
phurst@1971	4127 }
phurst@1971	4128
phurst@1971	4129 uw_Basis_int uw_Basis_datetimeHour(uw_context ctx, uw_Basis_time time) {
phurst@1971	4130 struct tm tm;
phurst@1982	4131 localtime_r(&time.seconds, &tm);
phurst@1971	4132 return tm.tm_hour;
phurst@1971	4133 }
phurst@1971	4134
phurst@1971	4135 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4136 struct tm tm;
phurst@1982	4137 localtime_r(&time.seconds, &tm);
phurst@1971	4138 return tm.tm_min;
phurst@1971	4139 }
phurst@1971	4140
phurst@1971	4141 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4142 struct tm tm;
phurst@1982	4143 localtime_r(&time.seconds, &tm);
phurst@1971	4144 return tm.tm_sec;
phurst@1971	4145 }
phurst@1971	4146
phurst@1973	4147 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4148 struct tm tm;
phurst@1982	4149 localtime_r(&time.seconds, &tm);
phurst@1973	4150 return tm.tm_wday;
phurst@1973	4151 }
phurst@1971	4152
phurst@1971	4153
adamc@1061	4154 void uw_get_global(uw_context ctx, char name) {
adamc@1061	4155 int i;
adamc@1061	4156
adamc@1061	4157 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4158 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	4159 return ctx->globals[i].data;
adamc@1061	4160
adamc@1061	4161 return NULL;
adamc@1061	4162 }
adamc@1061	4163
adamc@1113	4164 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4165
adamc@1061	4166 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4167 int i;
adamc@1061	4168
adamc@1061	4169 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4170 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4171 if (ctx->globals[i].free)
adamc@1061	4172 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4173 ctx->globals[i].data = data;
adamc@1061	4174 ctx->globals[i].free = free;
adamc@1061	4175 return;
adamc@1061	4176 }
adamc@1089	4177
adamc@1113	4178 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4179 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4180
adamc@1061	4181 ++ctx->n_globals;
adamc@1061	4182 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4183 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4184 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4185 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4186 }
adamc@1061	4187
adamc@1061	4188 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4189 return !!isalnum((int)c);
adamc@1061	4190 }
adamc@1061	4191
adamc@1061	4192 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4193 return !!isalpha((int)c);
adamc@1061	4194 }
adamc@1061	4195
adamc@1061	4196 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4197 return !!isblank((int)c);
adamc@1061	4198 }
adamc@1061	4199
adamc@1061	4200 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4201 return !!iscntrl((int)c);
adamc@1061	4202 }
adamc@1061	4203
adamc@1061	4204 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4205 return !!isdigit((int)c);
adamc@1061	4206 }
adamc@1061	4207
adamc@1061	4208 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4209 return !!isgraph((int)c);
adamc@1061	4210 }
adamc@1061	4211
adamc@1061	4212 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4213 return !!islower((int)c);
adamc@1061	4214 }
adamc@1061	4215
adamc@1061	4216 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4217 return !!isprint((int)c);
adamc@1061	4218 }
adamc@1061	4219
adamc@1061	4220 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4221 return !!ispunct((int)c);
adamc@1061	4222 }
adamc@1061	4223
adamc@1061	4224 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4225 return !!isspace((int)c);
adamc@1061	4226 }
adamc@1063	4227
adamc@1061	4228 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4229 return !!isupper((int)c);
adamc@1061	4230 }
adamc@1061	4231
adamc@1061	4232 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4233 return !!isxdigit((int)c);
adamc@1061	4234 }
adamc@1061	4235
adamc@1061	4236 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4237 return tolower((int)c);
adamc@1061	4238 }
adamc@1061	4239
adamc@1061	4240 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4241 return toupper((int)c);
adamc@1061	4242 }
adamc@1066	4243
adamc@1128	4244 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4245 return (unsigned char)c;
adamc@1128	4246 }
adamc@1128	4247
adamc@1128	4248 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4249 return n;
adamc@1128	4250 }
adamc@1128	4251
adamc@1066	4252 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4253 return ctx->current_url;
adamc@1066	4254 }
adamc@1066	4255
adamc@1066	4256 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4257 ctx->current_url = s;
adamc@1066	4258 }
adamc@1114	4259
adamc@1114	4260 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4261 ctx->deadline = n;
adamc@1114	4262 }
adamc@1114	4263
adamc@1114	4264 void uw_check_deadline(uw_context ctx) {
adamc@1114	4265 if (uw_time > ctx->deadline)
adamc@1114	4266 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4267 }
adamc@1115	4268
adamc@1115	4269 size_t uw_database_max = SIZE_MAX;
adamc@1120	4270
adam@1389	4271 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143	4272 if (ctx->loggers->log_debug)
adam@2143	4273 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143	4274 else
adam@2143	4275 fprintf(stderr, "%s\n", s);
adam@1389	4276 return 0;
adam@1389	4277 }
adam@1389	4278
adamc@1120	4279 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4280 if (ctx->loggers->log_debug)
grrwlf@1997	4281 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4282 else
adam@1334	4283 fprintf(stderr, "%s\n", s);
adamc@1120	4284 return uw_unit_v;
adamc@1120	4285 }
adamc@1250	4286
adamc@1250	4287 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4288 int r = my_rand();
adam@2104	4289
adam@2104	4290 if (r >= 0)
adam@2104	4291 return r;
adam@1486	4292 else
adam@1486	4293 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4294 }
adam@1347	4295
adam@1347	4296 void uw_noPostBody(uw_context ctx) {
adam@1347	4297 ctx->hasPostBody = 0;
adam@1347	4298 }
adam@1347	4299
adam@1347	4300 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4301 ctx->hasPostBody = 1;
adam@1347	4302 ctx->postBody = pb;
adam@1347	4303 }
adam@1347	4304
adam@1347	4305 int uw_hasPostBody(uw_context ctx) {
adam@1347	4306 return ctx->hasPostBody;
adam@1347	4307 }
adam@1347	4308
adam@1386	4309 void uw_isPost(uw_context ctx) {
adam@1386	4310 ctx->isPost = 1;
adam@1386	4311 }
adam@1386	4312
adam@1386	4313 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4314 return ctx->isPost;
adam@1386	4315 }
adam@1386	4316
adam@1485	4317 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4318 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4319 }
adam@1485	4320
adam@1370	4321 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4322 ctx->queryString = s;
adam@1370	4323 }
adam@1370	4324
adam@1370	4325 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4326 return ctx->queryString;
adam@1370	4327 }
adam@1370	4328
adam@1347	4329 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4330 if (ctx->hasPostBody)
adam@1347	4331 return ctx->postBody;
adam@1347	4332 else
adam@1347	4333 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4334 }
adam@1349	4335
adam@1349	4336 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4337 int r = setjmp(ctx->jmp_buf);
adam@1349	4338
adam@1349	4339 if (r == 0) {
adam@1936	4340 uw_ensure_transaction(ctx);
adam@1418	4341
adam@1349	4342 callback(ctx);
adam@1349	4343 }
adam@1349	4344
adam@1349	4345 return r;
adam@1349	4346 }
adam@1360	4347
adam@1360	4348 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4349 char buf[14];
adam@1397	4350 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4351 }
adam@1365	4352
adam@1365	4353 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4354 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4355 }
adam@1365	4356
adam@1365	4357 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4358 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4359 }
adam@1365	4360
adam@1365	4361 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4362 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4363 }
adam@1365	4364
adam@1372	4365 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4366 struct tm stm = {};
adam@1375	4367 char *end = strchr(s, 0);
adam@1449	4368 stm.tm_isdst = -1;
adam@1375	4369
adam@1632	4370 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4371 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4372
kkallio@1448	4373 r->seconds = timegm(&stm);
adam@1373	4374 r->microseconds = 0;
adam@1373	4375
adam@1373	4376 return r;
adam@1374	4377 }
adam@1374	4378 else
adam@1373	4379 return NULL;
adam@1372	4380 }
adam@1407	4381
adam@1407	4382 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4383 int r = setjmp(ctx->jmp_buf);
adam@1407	4384
adam@1407	4385 if (ctx->app->on_error) {
adam@1407	4386 if (r == 0) {
adam@1936	4387 uw_ensure_transaction(ctx);
adam@1407	4388
adam@1409	4389 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4390 if (on_success[0])
adam@1409	4391 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4392 else
adam@1409	4393 uw_write_header(ctx, "Status: ");
adam@1409	4394 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4395 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4396 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4397 ctx->app->on_error(ctx, msg);
adam@1407	4398 uw_write(ctx, "</html>");
adam@1407	4399 }
adam@1407	4400
adam@1407	4401 return r;
adam@1407	4402 } else
adam@1407	4403 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4404 }
adam@1451	4405
adam@1451	4406 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4407 ctx->allowed_to_return_indirectly = 1;
adam@1451	4408 }
adam@1483	4409
adam@1556	4410 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4411 int len;
adam@1703	4412 char *r;
adam@1703	4413
adam@1703	4414 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4415 r = ctx->heap.front;
adam@1703	4416 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4417 ctx->heap.front += len+1;
adam@1703	4418 return r;
adam@1556	4419 }
adam@1571	4420
adam@1571	4421 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4422 return n;
adam@1571	4423 }
adam@1571	4424
adam@1571	4425 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4426 return ceil(n);
adam@1571	4427 }
adam@1571	4428
adam@1571	4429 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4430 return trunc(n);
adam@1571	4431 }
adam@1571	4432
adam@1571	4433 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4434 return round(n);
adam@1571	4435 }
adam@1755	4436
adam@1755	4437 uw_Basis_string uw_Basis_atom(uw_context ctx, uw_Basis_string s) {
adam@1755	4438 char *p;
adam@1755	4439
adam@1755	4440 for (p = s; *p; ++p) {
adam@1755	4441 char c = *p;
adam@1801	4442 if (!isalnum((int)c) && c != '+' && c != '-' && c != '.' && c != '%' && c != '#')
adam@1755	4443 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4444 }
adam@1755	4445
adam@1755	4446 return s;
adam@1755	4447 }
adam@1755	4448
adam@1755	4449 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4450 char *p;
adam@1755	4451
adam@1755	4452 for (p = s; *p; ++p) {
adam@1755	4453 char c = *p;
adam@1801	4454 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4455 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4456 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4457 }
adam@1755	4458
adam@1755	4459 return s;
adam@1755	4460 }
adam@1755	4461
adam@1755	4462 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4463 char *p;
adam@1755	4464
adam@1755	4465 if (!*s)
adam@1755	4466 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4467
adam@1801	4468 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4469 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4470
adam@1755	4471 for (p = s; *p; ++p) {
adam@1755	4472 char c = *p;
adam@1801	4473 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4474 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4475 }
adam@1755	4476
adam@1755	4477 return s;
adam@1755	4478 }
adam@1787	4479
adam@1787	4480 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4481 return f.name;
adam@1787	4482 }
adam@1787	4483
adam@1787	4484 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4485 return f.value;
adam@1787	4486 }
adam@1787	4487
adam@1787	4488 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4489 return f.remaining;
adam@1787	4490 }
adam@1787	4491
adam@1787	4492 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4493 char *unurl;
adam@1787	4494 uw_Basis_postField *f;
adam@1787	4495
adam@1788	4496 if (!ctx->hasPostBody)
adam@1788	4497 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4498
adam@1788	4499 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4500 return NULL;
adam@1787	4501
adam@1787	4502 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4503 unurl = s;
adam@1787	4504 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4505 s = strchr(s, 0);
adam@1788	4506 if (!s)
adam@1788	4507 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4508 ++s;
adam@1788	4509 unurl = s;
adam@1788	4510 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4511 s = strchr(s, 0);
adam@1788	4512 if (!s)
adam@1788	4513 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4514 f->remaining = s+1;
adam@1787	4515
adam@1787	4516 return f;
adam@1787	4517 }
adam@2008	4518
adam@2008	4519 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4520 char *p = s;
adam@2008	4521
adam@2008	4522 for (; *p; ++p)
adam@2008	4523 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4524 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4525
adam@2008	4526 return s;
adam@2008	4527 }
adam@2073	4528
adam@2073	4529 int uw_remoteSock(uw_context ctx) {
adam@2073	4530 return ctx->remoteSock;
adam@2073	4531 }
adam@2073	4532
adam@2073	4533 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4534 ctx->remoteSock = sock;
adam@2073	4535 }
ziv@2234	4536
ziv@2234	4537
ziv@2234	4538 // Sqlcache
ziv@2234	4539
ziv@2279	4540 void uw_Sqlcache_freeValue(uw_Sqlcache_Value *value) {
ziv@2234	4541 if (value) {
ziv@2234	4542 free(value->result);
ziv@2234	4543 free(value->output);
ziv@2234	4544 free(value);
ziv@2234	4545 }
ziv@2234	4546 }
ziv@2234	4547
ziv@2279	4548 void uw_Sqlcache_freeEntry(uw_Sqlcache_Entry* entry) {
ziv@2279	4549 if (entry) {
ziv@2279	4550 free(entry->key);
ziv@2279	4551 uw_Sqlcache_freeValue(entry->value);
ziv@2279	4552 free(entry);
ziv@2279	4553 }
ziv@2279	4554 }
ziv@2279	4555
ziv@2279	4556 // TODO: pick a number.
ziv@2279	4557 unsigned int uw_Sqlcache_maxSize = 1234567890;
ziv@2279	4558
ziv@2279	4559 void uw_Sqlcache_delete(uw_Sqlcache_Cache cache, uw_Sqlcache_Entry entry) {
ziv@2279	4560 HASH_DEL(cache->table, entry);
ziv@2279	4561 uw_Sqlcache_freeEntry(entry);
ziv@2279	4562 }
ziv@2279	4563
ziv@2279	4564 uw_Sqlcache_Entry uw_Sqlcache_find(uw_Sqlcache_Cache cache, char *key, size_t len, int bump) {
ziv@2279	4565 uw_Sqlcache_Entry *entry = NULL;
ziv@2279	4566 HASH_FIND(hh, cache->table, key, len, entry);
ziv@2279	4567 if (entry && bump) {
ziv@2279	4568 // Bump for LRU purposes.
ziv@2279	4569 HASH_DEL(cache->table, entry);
ziv@2279	4570 // Important that we use [entry->key], because [key] might be ephemeral.
ziv@2279	4571 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279	4572 }
ziv@2279	4573 return entry;
ziv@2279	4574 }
ziv@2279	4575
ziv@2279	4576 void uw_Sqlcache_add(uw_Sqlcache_Cache cache, uw_Sqlcache_Entry entry, size_t len) {
ziv@2279	4577 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279	4578 if (HASH_COUNT(cache->table) > uw_Sqlcache_maxSize) {
ziv@2279	4579 // Deletes the first element of the cache.
ziv@2279	4580 uw_Sqlcache_delete(cache, cache->table);
ziv@2279	4581 }
ziv@2279	4582 }
ziv@2279	4583
ziv@2279	4584 unsigned long uw_Sqlcache_getTimeNow(uw_Sqlcache_Cache *cache) {
ziv@2279	4585 return ++cache->timeNow;
ziv@2279	4586 }
ziv@2279	4587
ziv@2279	4588 unsigned long uw_Sqlcache_timeMax(unsigned long x, unsigned long y) {
ziv@2279	4589 return x > y ? x : y;
ziv@2279	4590 }
ziv@2279	4591
ziv@2279	4592 char uw_Sqlcache_keySep = '_';
ziv@2279	4593
ziv@2279	4594 char uw_Sqlcache_allocKeyBuffer(char *keys, int numKeys) {
ziv@2279	4595 size_t len = 0;
ziv@2279	4596 while (numKeys-- > 0) {
ziv@2279	4597 char* k = keys[numKeys];
ziv@2279	4598 if (!k) {
ziv@2279	4599 // Can only happen when flushihg, in which case we don't need anything past the null key.
ziv@2279	4600 break;
ziv@2234	4601 }
ziv@2279	4602 // Leave room for separator.
ziv@2279	4603 len += 1 + strlen(k);
ziv@2234	4604 }
ziv@2279	4605 char *buf = malloc(len+1);
ziv@2279	4606 // If nothing is copied into the buffer, it should look like it has length 0.
ziv@2279	4607 buf[0] = 0;
ziv@2279	4608 return buf;
ziv@2279	4609 }
ziv@2279	4610
ziv@2279	4611 char uw_Sqlcache_keyCopy(char buf, char *key) {
ziv@2279	4612 *buf++ = uw_Sqlcache_keySep;
ziv@2279	4613 return stpcpy(buf, key);
ziv@2279	4614 }
ziv@2279	4615
ziv@2279	4616 // The NUL-terminated prefix of [key] below always looks something like "_k1_k2_k3..._kn".
ziv@2279	4617 // TODO: strlen(key) = buf - key?
ziv@2279	4618
ziv@2279	4619 uw_Sqlcache_Value uw_Sqlcache_check(uw_Sqlcache_Cache cache, char **keys, int numKeys) {
ziv@2279	4620 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279	4621 char *buf = key;
ziv@2279	4622 time_t timeInvalid = cache->timeInvalid;
ziv@2279	4623 uw_Sqlcache_Entry *entry;
ziv@2279	4624 while (numKeys-- > 0) {
ziv@2279	4625 buf = uw_Sqlcache_keyCopy(buf, keys[numKeys]);
ziv@2279	4626 size_t len = buf - key;
ziv@2279	4627 entry = uw_Sqlcache_find(cache, key, len, 1);
ziv@2279	4628 if (!entry) {
ziv@2279	4629 free(key);
ziv@2279	4630 return NULL;
ziv@2279	4631 }
ziv@2279	4632 timeInvalid = uw_Sqlcache_timeMax(timeInvalid, entry->timeInvalid);
ziv@2234	4633 }
ziv@2279	4634 free(key);
ziv@2279	4635 uw_Sqlcache_Value *value = entry->value;
ziv@2279	4636 return value && value->timeValid > timeInvalid ? value : NULL;
ziv@2279	4637 }
ziv@2279	4638
ziv@2279	4639 void uw_Sqlcache_store(uw_Sqlcache_Cache cache, char keys, int numKeys, uw_Sqlcache_Value value) {
ziv@2279	4640 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279	4641 char *buf = key;
ziv@2279	4642 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2279	4643 uw_Sqlcache_Entry *entry;
ziv@2279	4644 while (numKeys-- > 0) {
ziv@2279	4645 buf = uw_Sqlcache_keyCopy(buf, keys[numKeys]);
ziv@2279	4646 size_t len = buf - key;
ziv@2279	4647 entry = uw_Sqlcache_find(cache, key, len, 1);
ziv@2279	4648 if (!entry) {
ziv@2279	4649 entry = malloc(sizeof(uw_Sqlcache_Entry));
ziv@2279	4650 entry->key = strdup(key);
ziv@2279	4651 entry->value = NULL;
ziv@2279	4652 entry->timeInvalid = 0; // ASK: is this okay?
ziv@2279	4653 uw_Sqlcache_add(cache, entry, len);
ziv@2234	4654 }
ziv@2234	4655 }
ziv@2279	4656 free(key);
ziv@2279	4657 uw_Sqlcache_freeValue(entry->value);
ziv@2279	4658 entry->value = value;
ziv@2279	4659 entry->value->timeValid = timeNow;
ziv@2279	4660 }
ziv@2279	4661
ziv@2279	4662 void uw_Sqlcache_flush(uw_Sqlcache_Cache cache, char *keys, int numKeys) {
ziv@2279	4663 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279	4664 char *buf = key;
ziv@2279	4665 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2279	4666 uw_Sqlcache_Entry *entry;
ziv@2279	4667 while (numKeys-- > 0) {
ziv@2279	4668 char *k = keys[numKeys];
ziv@2279	4669 if (!k) {
ziv@2279	4670 if (entry) {
ziv@2279	4671 entry->timeInvalid = timeNow;
ziv@2234	4672 } else {
ziv@2279	4673 // Haven't found an entry yet, so the first key was null.
ziv@2279	4674 cache->timeInvalid = timeNow;
ziv@2234	4675 }
ziv@2279	4676 free(key);
ziv@2279	4677 return;
ziv@2234	4678 }
ziv@2279	4679 buf = uw_Sqlcache_keyCopy(buf, k);
ziv@2279	4680 size_t len = buf - key;
ziv@2279	4681 entry = uw_Sqlcache_find(cache, key, len, 0);
ziv@2279	4682 if (!entry) {
ziv@2279	4683 free(key);
ziv@2279	4684 return;
ziv@2279	4685 }
ziv@2234	4686 }
ziv@2279	4687 free(key);
ziv@2279	4688 // All the keys were non-null and the relevant entry is present, so we delete it.
ziv@2279	4689 uw_Sqlcache_delete(cache, entry);
ziv@2279	4690 }

Mercurial > urweb

annotate src/c/urweb.c @ 2280:985c8016b592