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

annotate src/c/urweb.c @ 2285:ad3ce1528f71

Fix committing multiple stores/flushes. Locking is WIP.

author	Ziv Scully <ziv@mit.edu>
date	Thu, 12 Nov 2015 16:36:35 -0500
parents	472b4504aef2
children	0bdfec16a01d

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
ziv@2285	427 typedef struct uw_Sqlcache_Update {
ziv@2282	428 uw_Sqlcache_Cache *cache;
ziv@2282	429 char **keys;
ziv@2285	430 uw_Sqlcache_Value *value;
ziv@2285	431 struct uw_Sqlcache_Update *next;
ziv@2285	432 } uw_Sqlcache_Update;
ziv@2282	433
adamc@311	434 struct uw_context {
adamc@1094	435 uw_app *app;
adam@1446	436 int id;
adamc@1094	437
adamc@854	438 char (get_header)(void , const char );
adamc@854	439 void *get_header_data;
adamc@457	440
adam@1799	441 char (get_env)(void , const char );
adam@1799	442 void *get_env_data;
adam@1799	443
adam@1369	444 uw_buffer outHeaders, page, heap, script;
adam@1451	445 int allowed_to_return_indirectly, returning_indirectly;
adamc@759	446 input inputs, subinputs, *cur_container;
adamc@1094	447 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	448
adam@1446	449 unsigned long long source_count;
adamc@562	450
adamc@272	451 void *db;
adam@1931	452 int transaction_started;
adamc@272	453
adamc@167	454 jmp_buf jmp_buf;
adamc@167	455
adamc@323	456 regions *regions;
adamc@323	457
adamc@425	458 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	459
adamc@1094	460 const char *script_header;
adamc@643	461
adam@2056	462 int needs_push, needs_sig, could_write_db, at_most_one_query;
adamc@693	463
adamc@682	464 size_t n_deltas, used_deltas;
adamc@682	465 delta *deltas;
adamc@671	466
adamc@682	467 client *client;
adamc@682	468
adamc@771	469 transactional *transactionals;
adamc@771	470 size_t n_transactionals, used_transactionals;
adamc@771	471
adamc@1061	472 global *globals;
adamc@1061	473 size_t n_globals;
adamc@1061	474
adamc@1066	475 char *current_url;
adamc@1066	476
adamc@1114	477 int deadline;
adamc@1114	478
adamc@1121	479 void *client_data;
adamc@1121	480
grrwlf@1997	481 uw_loggers *loggers;
adam@1334	482
adam@1386	483 int isPost, hasPostBody;
adam@1347	484 uw_Basis_postBody postBody;
adam@1370	485 uw_Basis_string queryString;
adam@1347	486
adam@1556	487 unsigned nextId;
adam@1556	488
adam@1782	489 int amInitializing;
adam@1782	490
adamc@167	491 char error_message[ERROR_BUF_LEN];
adam@1877	492
adam@1877	493 int usedSig, needsResig;
adam@1949	494
adam@1949	495 char *output_buffer;
adam@1949	496 size_t output_buffer_size;
adam@2073	497
ziv@2281	498 // Sqlcache.
ziv@2262	499 int numRecording;
ziv@2262	500 int recordingOffset;
ziv@2285	501 uw_Sqlcache_Update *cacheUpdate;
ziv@2285	502 uw_Sqlcache_Update *cacheUpdateTail;
ziv@2220	503
adam@2073	504 int remoteSock;
adamc@117	505 };
adamc@117	506
adamc@1113	507 size_t uw_headers_max = SIZE_MAX;
adamc@1113	508 size_t uw_page_max = SIZE_MAX;
adamc@1113	509 size_t uw_heap_max = SIZE_MAX;
adamc@1113	510 size_t uw_script_max = SIZE_MAX;
adamc@1113	511
grrwlf@1997	512 uw_context uw_init(int id, uw_loggers *lg) {
ziv@2285	513 puts("Initializing");
adamc@311	514 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	515
adamc@1094	516 ctx->app = NULL;
adam@1446	517 ctx->id = id;
adamc@1094	518
adamc@854	519 ctx->get_header = NULL;
adamc@854	520 ctx->get_header_data = NULL;
adamc@457	521
adam@1799	522 ctx->get_env = NULL;
adam@1799	523 ctx->get_env_data = NULL;
adam@1799	524
adam@1413	525 uw_buffer_init(uw_headers_max, &ctx->outHeaders, 1);
adam@1413	526 ctx->outHeaders.start[0] = 0;
adam@1413	527 uw_buffer_init(uw_page_max, &ctx->page, 1);
adam@1413	528 ctx->page.start[0] = 0;
adam@1451	529 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	530 uw_buffer_init(uw_heap_max, &ctx->heap, uw_min_heap);
adam@1369	531 uw_buffer_init(uw_script_max, &ctx->script, 1);
adamc@667	532 ctx->script.start[0] = 0;
adamc@136	533
adamc@1094	534 ctx->inputs = malloc(0);
adamc@759	535 ctx->cur_container = NULL;
adamc@756	536 ctx->subinputs = malloc(0);
adamc@1094	537 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	538
adamc@272	539 ctx->db = NULL;
adam@1931	540 ctx->transaction_started = 0;
adamc@272	541
adamc@323	542 ctx->regions = NULL;
adamc@323	543
adamc@425	544 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	545
adamc@643	546 ctx->script_header = "";
adamc@693	547 ctx->needs_push = 0;
adamc@736	548 ctx->needs_sig = 0;
adam@1936	549 ctx->could_write_db = 1;
adam@2056	550 ctx->at_most_one_query = 0;
adamc@1104	551
adamc@565	552 ctx->source_count = 0;
adamc@562	553
adamc@682	554 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	555 ctx->deltas = malloc(0);
adamc@671	556
adamc@700	557 ctx->client = NULL;
adamc@700	558
adamc@700	559 ctx->error_message[0] = 0;
adamc@700	560
adamc@771	561 ctx->transactionals = malloc(0);
adamc@771	562 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	563
adamc@1061	564 ctx->globals = malloc(0);
adamc@1061	565 ctx->n_globals = 0;
adamc@1061	566
adamc@1066	567 ctx->current_url = "";
adamc@1066	568
adamc@1114	569 ctx->deadline = INT_MAX;
adamc@1114	570
adamc@1121	571 ctx->client_data = uw_init_client_data();
adamc@1121	572
grrwlf@1997	573 ctx->loggers = lg;
adam@1334	574
adam@1386	575 ctx->isPost = ctx->hasPostBody = 0;
adam@1347	576
adam@1370	577 ctx->queryString = NULL;
adam@1370	578
adam@1556	579 ctx->nextId = 0;
adam@1556	580
adam@1782	581 ctx->amInitializing = 0;
adam@1782	582
adam@1877	583 ctx->usedSig = 0;
adam@1877	584 ctx->needsResig = 0;
adam@1877	585
adam@1949	586 ctx->output_buffer = malloc(1);
adam@1949	587 ctx->output_buffer_size = 1;
adam@1949	588
ziv@2262	589 ctx->numRecording = 0;
ziv@2262	590 ctx->recordingOffset = 0;
ziv@2285	591 ctx->cacheUpdate = NULL;
ziv@2285	592 ctx->cacheUpdateTail = NULL;
ziv@2204	593
adam@2073	594 ctx->remoteSock = -1;
adam@2073	595
adamc@117	596 return ctx;
adamc@106	597 }
adamc@106	598
adamc@1113	599 size_t uw_inputs_max = SIZE_MAX;
adamc@1113	600
adamc@1121	601 uw_app *uw_get_app(uw_context ctx) {
adamc@1121	602 return ctx->app;
adamc@1121	603 }
adamc@1121	604
adamc@1113	605 int uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	606 ctx->app = app;
adamc@1094	607
adamc@1105	608 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1113	609 if (app->inputs_len > uw_inputs_max)
adamc@1113	610 return 1;
adamc@1113	611
adamc@1094	612 ctx->sz_inputs = app->inputs_len;
adamc@1094	613 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	614 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	615 }
adamc@1134	616
adamc@1134	617 return 0;
adamc@1094	618 }
adamc@1094	619
adamc@1121	620 void uw_set_client_data(uw_context ctx, void *data) {
adamc@1121	621 uw_copy_client_data(ctx->client_data, data);
adamc@1121	622 }
adamc@1121	623
adamc@311	624 void uw_set_db(uw_context ctx, void *db) {
adamc@272	625 ctx->db = db;
adamc@272	626 }
adamc@272	627
adamc@311	628 void *uw_get_db(uw_context ctx) {
adamc@272	629 return ctx->db;
adamc@272	630 }
adamc@272	631
grrwlf@1997	632
grrwlf@1997	633 uw_loggers* uw_get_loggers(struct uw_context *ctx) {
grrwlf@1997	634 return ctx->loggers;
grrwlf@1997	635 }
grrwlf@1997	636
adamc@311	637 void uw_free(uw_context ctx) {
adamc@671	638 size_t i;
adamc@671	639
adam@1369	640 uw_buffer_free(&ctx->outHeaders);
adam@1369	641 uw_buffer_free(&ctx->script);
adam@1369	642 uw_buffer_free(&ctx->page);
adam@1369	643 uw_buffer_free(&ctx->heap);
adamc@144	644 free(ctx->inputs);
adamc@756	645 free(ctx->subinputs);
adamc@425	646 free(ctx->cleanup);
adamc@771	647 free(ctx->transactionals);
adamc@1121	648 uw_free_client_data(ctx->client_data);
adamc@671	649
adamc@682	650 for (i = 0; i < ctx->n_deltas; ++i)
adam@1369	651 uw_buffer_free(&ctx->deltas[i].msgs);
marco-oweber@1330	652 free(ctx->deltas);
adamc@671	653
adamc@1061	654 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	655 if (ctx->globals[i].free)
adamc@1089	656 ctx->globals[i].free(ctx->globals[i].data);
marco-oweber@1330	657 free(ctx->globals);
adamc@1061	658
adam@1949	659 free(ctx->output_buffer);
adam@1949	660
adamc@136	661 free(ctx);
adamc@136	662 }
adamc@136	663
adamc@562	664 void uw_reset_keep_error_message(uw_context ctx) {
adam@1369	665 uw_buffer_reset(&ctx->outHeaders);
adam@1369	666 uw_buffer_reset(&ctx->script);
adamc@667	667 ctx->script.start[0] = 0;
adam@1369	668 uw_buffer_reset(&ctx->page);
adam@1451	669 ctx->allowed_to_return_indirectly = ctx->returning_indirectly = 0;
adam@1369	670 uw_buffer_reset(&ctx->heap);
adamc@323	671 ctx->regions = NULL;
adamc@425	672 ctx->cleanup_front = ctx->cleanup;
adamc@682	673 ctx->used_deltas = 0;
adamc@682	674 ctx->client = NULL;
adamc@759	675 ctx->cur_container = NULL;
adamc@771	676 ctx->used_transactionals = 0;
adamc@1117	677 ctx->script_header = "";
adam@1370	678 ctx->queryString = NULL;
adam@1556	679 ctx->nextId = 0;
adam@1782	680 ctx->amInitializing = 0;
adam@1877	681 ctx->usedSig = 0;
adam@1877	682 ctx->needsResig = 0;
adam@2073	683 ctx->remoteSock = -1;
adamc@167	684 }
adamc@167	685
adamc@562	686 void uw_reset_keep_request(uw_context ctx) {
adamc@562	687 uw_reset_keep_error_message(ctx);
adamc@562	688 ctx->error_message[0] = 0;
adamc@167	689 }
adamc@167	690
adamc@311	691 void uw_reset(uw_context ctx) {
adamc@311	692 uw_reset_keep_request(ctx);
adamc@1105	693 if (ctx->app)
adamc@1105	694 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	695 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adam@1461	696 ctx->used_subinputs = ctx->hasPostBody = ctx->isPost = 0;
adam@1943	697 ctx->transaction_started = 0;
adamc@144	698 }
adamc@144	699
adamc@311	700 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	701 int r = setjmp(ctx->jmp_buf);
adamc@272	702
adamc@1105	703 if (r == 0 && ctx->app)
adamc@1094	704 ctx->app->db_init(ctx);
adamc@272	705
adamc@272	706 return r;
adamc@272	707 }
adamc@272	708
adamc@1118	709 void uw_close(uw_context ctx) {
adamc@1118	710 ctx->app->db_close(ctx);
adamc@1118	711 }
adamc@1118	712
adam@1446	713 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adam@1446	714 return ctx->get_header(ctx->get_header_data, h);
adam@1446	715 }
adam@1446	716
adamc@854	717 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	718 ctx->get_header = get_header;
adamc@854	719 ctx->get_header_data = get_header_data;
adamc@742	720 }
adamc@742	721
adam@1799	722 void uw_set_env(uw_context ctx, char (get_env)(void , const char ), void *get_env_data) {
adam@1799	723 ctx->get_env = get_env;
adam@1799	724 ctx->get_env_data = get_env_data;
adam@1799	725 }
adam@1799	726
adamc@801	727 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	728 va_list ap;
adamc@801	729 va_start(ap, fmt);
adamc@801	730
adamc@801	731 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	732 }
adamc@801	733
adamc@1131	734 int uw_has_error(uw_context ctx) {
adamc@1131	735 return ctx->error_message[0] != 0;
adamc@1131	736 }
adamc@1131	737
adamc@311	738 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	739 cleanup *cl;
adamc@425	740
adamc@167	741 va_list ap;
adamc@167	742 va_start(ap, fmt);
adamc@167	743
adamc@167	744 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	745
adamc@425	746 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	747 cl->func(cl->arg);
adamc@425	748
adamc@425	749 ctx->cleanup_front = ctx->cleanup;
adamc@425	750
adamc@190	751 longjmp(ctx->jmp_buf, fk);
adamc@167	752 }
adamc@167	753
adamc@1113	754 size_t uw_cleanup_max = SIZE_MAX;
adamc@1113	755
adamc@425	756 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	757 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	758 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	759 if (len == 0)
adamc@425	760 newLen = 1;
adamc@425	761 else
adamc@428	762 newLen = len * 2;
adamc@1113	763
adamc@1134	764 if (newLen > uw_cleanup_max) {
adamc@1113	765 if (len+1 <= uw_cleanup_max)
adamc@1113	766 newLen = uw_cleanup_max;
adamc@1113	767 else
adamc@1113	768 uw_error(ctx, FATAL, "Exceeded limit on number of cleanup handlers");
adamc@1134	769 }
adamc@1113	770
adamc@470	771 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	772 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	773 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	774 }
adamc@425	775
adamc@425	776 ctx->cleanup_front->func = func;
adamc@425	777 ctx->cleanup_front->arg = arg;
adamc@425	778 ++ctx->cleanup_front;
adamc@425	779 }
adamc@425	780
adam@1444	781 char uw_Basis_htmlifyString(uw_context, const char );
adam@1444	782
adamc@682	783 void uw_login(uw_context ctx) {
adam@1942	784 char id_s, pass_s;
adam@1942	785
adam@1942	786 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adam@1942	787 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adam@1942	788 unsigned id = atoi(id_s);
adam@1942	789 int pass = atoi(pass_s);
adam@1942	790 client *c = find_client(id);
adam@1942	791
adam@1942	792 if (c == NULL)
adam@1942	793 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	794 else {
adamc@685	795 use_client(c);
adamc@682	796 ctx->client = c;
adam@1942	797
adam@1942	798 if (c->mode != USED)
adam@1942	799 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adam@1942	800 if (c->pass != pass)
adam@1942	801 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@864	802 }
adam@1942	803 } else if (ctx->needs_push) {
adam@1942	804 client *c = new_client();
adam@1942	805
adam@1942	806 if (c == NULL)
adam@1942	807 uw_error(ctx, FATAL, "Limit exceeded on number of message-passing clients");
adam@1942	808
adam@1942	809 use_client(c);
adam@1942	810 uw_copy_client_data(c->data, ctx->client_data);
adam@1942	811 ctx->client = c;
adamc@682	812 }
adamc@682	813 }
adamc@682	814
adamc@671	815 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	816 int r = setjmp(ctx->jmp_buf);
adamc@671	817
adam@1931	818 if (r == 0)
adam@1931	819 ctx->app->handle(ctx, path);
adam@1931	820
adam@1931	821 return r;
adam@1931	822 }
adam@1931	823
adam@2176	824 static void uw_try_reconnecting(uw_context ctx) {
adam@2176	825 // Hm, error starting transaction.
adam@2176	826 // Maybe the database server died but has since come back up.
adam@2176	827 // Let's try starting from scratch.
adam@2176	828 if (ctx->db) {
adam@2176	829 ctx->app->db_close(ctx);
adam@2176	830 ctx->db = NULL;
adam@2176	831 }
adam@2176	832 ctx->app->db_init(ctx);
adam@2176	833 }
adam@2176	834
adam@2177	835 void uw_try_reconnecting_and_restarting(uw_context ctx) {
adam@2177	836 uw_try_reconnecting(ctx);
adam@2178	837 uw_error(ctx, BOUNDED_RETRY, "Restarting transaction after fixing database connection");
adam@2176	838 }
adam@2176	839
adam@1931	840 void uw_ensure_transaction(uw_context ctx) {
adam@2056	841 if (!ctx->transaction_started && !ctx->at_most_one_query) {
adam@2176	842 if (!ctx->db \|\| ctx->app->db_begin(ctx, ctx->could_write_db)) {
adam@2176	843 uw_try_reconnecting(ctx);
adam@2176	844
adam@2176	845 if (ctx->app->db_begin(ctx, ctx->could_write_db))
adam@2176	846 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adam@2176	847 }
adam@2176	848
adam@1931	849 ctx->transaction_started = 1;
adam@2178	850 } else if (ctx->at_most_one_query && !ctx->db)
adam@2178	851 uw_try_reconnecting(ctx);
adamc@671	852 }
adamc@671	853
adamc@772	854 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	855 if (ctx->client == NULL)
adamc@682	856 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	857
adamc@682	858 return ctx->client->id;
adamc@682	859 }
adamc@682	860
adamc@425	861 void uw_pop_cleanup(uw_context ctx) {
adamc@425	862 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	863 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	864
adamc@425	865 --ctx->cleanup_front;
adamc@425	866 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	867 }
adamc@425	868
adamc@311	869 char *uw_error_message(uw_context ctx) {
adamc@167	870 return ctx->error_message;
adamc@167	871 }
adamc@167	872
adamc@1115	873 void uw_set_error_message(uw_context ctx, const char *msg) {
adamc@1115	874 strncpy(ctx->error_message, msg, sizeof(ctx->error_message));
adamc@1115	875 ctx->error_message[sizeof(ctx->error_message)-1] = 0;
adamc@1115	876 }
adamc@1115	877
adamc@759	878 static input *INP(uw_context ctx) {
adamc@759	879 if (ctx->cur_container == NULL)
adamc@759	880 return ctx->inputs;
adamc@759	881 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	882 return ctx->cur_container->data.subform.fields;
adamc@759	883 else if (ctx->cur_container->kind == ENTRY)
adamc@759	884 return ctx->cur_container->data.entry.fields;
adamc@759	885 else
adamc@760	886 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	887 }
adamc@759	888
adamc@760	889 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	890 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	891 *ptr += new_start - old_start;
adamc@760	892 }
adamc@760	893
adamc@760	894 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	895 switch (x->kind) {
adamc@759	896 case SUBFORM:
adamc@760	897 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	898 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	899 break;
adamc@759	900 case SUBFORMS:
adamc@760	901 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	902 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	903 break;
adamc@759	904 case ENTRY:
adamc@760	905 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	906 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	907 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@1134	908 break;
adamc@1134	909 default:
adamc@1134	910 break;
phurst@1981	911 }
adamc@759	912 }
adamc@759	913
adamc@1113	914 size_t uw_subinputs_max = SIZE_MAX;
adamc@1113	915
adamc@759	916 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	917 size_t i;
adamc@759	918 input *r;
adamc@759	919
adamc@759	920 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@1113	921 if (ctx->used_subinputs + len > uw_subinputs_max)
adamc@1113	922 uw_error(ctx, FATAL, "Exceeded limit on number of subinputs");
adamc@1113	923
adamc@759	924 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	925
adamc@760	926 if (ctx->subinputs != new_subinputs) {
adamc@760	927 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	928 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	929 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	930 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	931
adamc@760	932 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	933
adamc@760	934 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	935 ctx->subinputs = new_subinputs;
adamc@760	936 }
adamc@759	937 }
adamc@759	938
adamc@759	939 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	940
adamc@759	941 for (i = 0; i < len; ++i)
adam@1474	942 ctx->subinputs[ctx->used_subinputs++].kind = UNSET;
adamc@759	943
adamc@759	944 return r;
adamc@759	945 }
adamc@756	946
adamc@801	947 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	948 //printf("Input name %s\n", name);
adamc@1038	949
adamc@756	950 if (!strcasecmp(name, ".b")) {
adamc@1094	951 int n = ctx->app->input_num(value);
adamc@756	952 input *inps;
adamc@756	953
adamc@801	954 if (n < 0) {
adam@1444	955 uw_set_error(ctx, "Bad subform name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	956 return -1;
adamc@801	957 }
adamc@801	958
adamc@1094	959 if (n >= ctx->app->inputs_len) {
adam@1444	960 uw_set_error(ctx, "For subform name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	961 return -1;
adamc@801	962 }
adamc@756	963
adamc@1094	964 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	965
adamc@759	966 INP(ctx)[n].kind = SUBFORM;
adamc@759	967 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	968 INP(ctx)[n].data.subform.fields = inps;
adamc@759	969 ctx->cur_container = &INP(ctx)[n];
adamc@756	970 } else if (!strcasecmp(name, ".e")) {
adamc@756	971 input *tmp;
adamc@756	972
adamc@801	973 if (ctx->cur_container == NULL) {
adamc@801	974 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	975 return -1;
adamc@801	976 }
adamc@756	977
adamc@759	978 tmp = ctx->cur_container;
adamc@759	979 switch (tmp->kind) {
adamc@759	980 case SUBFORM:
adamc@759	981 ctx->cur_container = tmp->data.subform.parent;
adamc@759	982 tmp->data.subform.parent = NULL;
adamc@759	983 break;
adamc@759	984 case SUBFORMS:
adamc@759	985 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	986 tmp->data.subforms.parent = NULL;
adamc@759	987 break;
adamc@759	988 case ENTRY:
adamc@759	989 ctx->cur_container = tmp->data.entry.parent;
adamc@759	990 break;
adamc@759	991 default:
adamc@801	992 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	993 return -1;
adamc@759	994 }
adamc@759	995 } else if (!strcasecmp(name, ".s")) {
adamc@1094	996 int n = ctx->app->input_num(value);
adamc@759	997
adamc@801	998 if (n < 0) {
adam@1444	999 uw_set_error(ctx, "Bad subforms name %s", uw_Basis_htmlifyString(ctx, value));
adamc@801	1000 return -1;
adamc@801	1001 }
adamc@801	1002
adamc@1094	1003 if (n >= ctx->app->inputs_len) {
adam@1444	1004 uw_set_error(ctx, "For subforms name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, value), n);
adamc@801	1005 return -1;
adamc@801	1006 }
adamc@759	1007
adamc@759	1008 INP(ctx)[n].kind = SUBFORMS;
adamc@759	1009 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1010 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	1011 ctx->cur_container = &INP(ctx)[n];
adamc@759	1012 } else if (!strcasecmp(name, ".i")) {
adamc@759	1013 input *inps;
adamc@759	1014
adamc@801	1015 if (!ctx->cur_container) {
adamc@801	1016 uw_set_error(ctx, "New entry without container");
adamc@801	1017 return -1;
adamc@801	1018 }
adamc@801	1019
adamc@801	1020 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	1021 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	1022 return -1;
adamc@801	1023 }
adamc@759	1024
adamc@1094	1025 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	1026
adamc@759	1027 inps->kind = ENTRY;
adamc@759	1028 inps->data.entry.parent = ctx->cur_container;
adamc@759	1029 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	1030 ctx->cur_container->data.subforms.entries = inps;
adamc@759	1031
adamc@759	1032 inps->data.entry.fields = inps+1;
adamc@759	1033 ctx->cur_container = inps;
adamc@756	1034 } else {
adamc@1094	1035 int n = ctx->app->input_num(name);
adamc@756	1036
adam@1384	1037 if (n < 0)
adam@1384	1038 return 0;
adamc@801	1039
adamc@1094	1040 if (n >= ctx->app->inputs_len) {
adam@1444	1041 uw_set_error(ctx, "For input name %s, index %d is out of range", uw_Basis_htmlifyString(ctx, name), n);
adamc@801	1042 return -1;
adamc@801	1043 }
adamc@756	1044
adamc@756	1045 INP(ctx)[n].kind = NORMAL;
adamc@756	1046 INP(ctx)[n].data.normal = value;
adamc@756	1047 }
adamc@801	1048
adamc@801	1049 return 0;
adamc@144	1050 }
adamc@144	1051
adamc@311	1052 char *uw_get_input(uw_context ctx, int n) {
adamc@169	1053 if (n < 0)
adamc@311	1054 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1055 if (n >= ctx->app->inputs_len)
adamc@311	1056 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1057
adamc@756	1058 switch (INP(ctx)[n].kind) {
adamc@737	1059 case UNSET:
adamc@737	1060 return NULL;
adamc@739	1061 case FIL:
adamc@739	1062 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1063 case SUBFORM:
adamc@756	1064 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1065 case SUBFORMS:
adamc@759	1066 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1067 case ENTRY:
adamc@759	1068 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1069 case NORMAL:
adamc@756	1070 return INP(ctx)[n].data.normal;
adamc@737	1071 default:
adamc@737	1072 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1073 }
adamc@138	1074 }
adamc@138	1075
adamc@311	1076 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	1077 if (n < 0)
adamc@311	1078 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	1079 if (n >= ctx->app->inputs_len)
adamc@311	1080 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	1081
adamc@756	1082 switch (INP(ctx)[n].kind) {
adamc@737	1083 case UNSET:
adamc@737	1084 return "";
adamc@739	1085 case FIL:
adamc@739	1086 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	1087 case SUBFORM:
adamc@756	1088 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	1089 case SUBFORMS:
adamc@759	1090 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	1091 case ENTRY:
adamc@759	1092 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	1093 case NORMAL:
adamc@756	1094 return INP(ctx)[n].data.normal;
adamc@737	1095 default:
adamc@737	1096 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1097 }
adamc@737	1098 }
adamc@737	1099
adamc@801	1100 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	1101 int n = ctx->app->input_num(name);
adamc@737	1102
adamc@801	1103 if (n < 0) {
adam@2054	1104 uw_set_error(ctx, "Bad file input name");
adamc@801	1105 return -1;
adamc@801	1106 }
adamc@801	1107
adamc@1094	1108 if (n >= ctx->app->inputs_len) {
adam@2054	1109 uw_set_error(ctx, "For file input name, index %d is out of range", n);
adamc@801	1110 return -1;
adamc@801	1111 }
adamc@737	1112
adamc@739	1113 ctx->inputs[n].kind = FIL;
adamc@739	1114 ctx->inputs[n].data.file = f;
adamc@801	1115
adamc@801	1116 return 0;
adamc@737	1117 }
adamc@737	1118
adamc@739	1119 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	1120
adamc@739	1121 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	1122 if (n < 0)
adamc@737	1123 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	1124 if (n >= ctx->app->inputs_len)
adamc@737	1125 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	1126
adamc@756	1127 switch (INP(ctx)[n].kind) {
adamc@737	1128 case UNSET:
adamc@737	1129 {
adamc@739	1130 char *data = uw_malloc(ctx, 0);
adamc@740	1131 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	1132 return f;
adamc@737	1133 }
adamc@739	1134 case FIL:
adamc@756	1135 return INP(ctx)[n].data.file;
adamc@737	1136 case NORMAL:
adamc@737	1137 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	1138 case SUBFORM:
adamc@756	1139 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	1140 case SUBFORMS:
adamc@759	1141 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	1142 case ENTRY:
adamc@759	1143 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	1144 default:
adamc@737	1145 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	1146 }
adamc@190	1147 }
adamc@190	1148
adamc@756	1149 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	1150 if (n < 0)
adamc@756	1151 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	1152 if (n >= ctx->app->inputs_len)
adamc@756	1153 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	1154
adamc@756	1155 switch (INP(ctx)[n].kind) {
adamc@756	1156 case UNSET:
adamc@756	1157 uw_error(ctx, FATAL, "Missing subform");
adamc@756	1158 case FIL:
adamc@756	1159 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	1160 case NORMAL:
adamc@756	1161 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	1162 case SUBFORMS:
adamc@759	1163 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	1164 case ENTRY:
adamc@759	1165 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	1166 case SUBFORM:
adamc@759	1167 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	1168 ctx->cur_container = &INP(ctx)[n];
adamc@756	1169 return;
adamc@756	1170 default:
adamc@756	1171 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	1172 }
adamc@756	1173 }
adamc@756	1174
adamc@756	1175 void uw_leave_subform(uw_context ctx) {
adamc@756	1176 input *tmp;
adamc@756	1177
adamc@759	1178 if (ctx->cur_container == NULL)
adamc@756	1179 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	1180
adamc@759	1181 tmp = ctx->cur_container;
adamc@759	1182 ctx->cur_container = tmp->data.subform.parent;
adamc@759	1183 tmp->data.subform.parent = NULL;
adamc@759	1184 }
adamc@759	1185
adamc@759	1186 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	1187 input *inps;
adamc@759	1188
adamc@759	1189 if (n < 0)
adamc@759	1190 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	1191 if (n >= ctx->app->inputs_len)
adamc@759	1192 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	1193
adamc@759	1194 switch (INP(ctx)[n].kind) {
adamc@759	1195 case UNSET:
adamc@759	1196 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	1197 case FIL:
adamc@759	1198 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	1199 case NORMAL:
adamc@759	1200 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	1201 case SUBFORM:
adamc@759	1202 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	1203 case ENTRY:
adamc@759	1204 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	1205 case SUBFORMS:
adamc@759	1206 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	1207 if (inps) {
adamc@759	1208 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	1209 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	1210 return 1;
adamc@759	1211 } else
adamc@759	1212 return 0;
adamc@759	1213 default:
adamc@759	1214 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1215 }
adamc@759	1216 }
adamc@759	1217
adamc@759	1218 int uw_next_entry(uw_context ctx) {
adamc@759	1219 if (ctx->cur_container == NULL)
adamc@759	1220 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1221
adamc@759	1222 switch (ctx->cur_container->kind) {
adamc@759	1223 case UNSET:
adamc@759	1224 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1225 case FIL:
adamc@759	1226 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1227 case NORMAL:
adamc@759	1228 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1229 case SUBFORM:
adamc@759	1230 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1231 case SUBFORMS:
adamc@759	1232 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1233 case ENTRY:
adamc@759	1234 if (ctx->cur_container->data.entry.next) {
adamc@759	1235 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1236 return 1;
adamc@759	1237 } else {
adamc@759	1238 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1239 return 0;
adamc@759	1240 }
adamc@759	1241 default:
adamc@759	1242 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1243 }
adamc@756	1244 }
adamc@756	1245
adamc@643	1246 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1247 ctx->script_header = s;
adamc@643	1248 }
adamc@643	1249
adamc@1094	1250 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1251 return ctx->app->url_prefix;
adamc@667	1252 }
adamc@667	1253
adamc@693	1254 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1255 ctx->needs_push = n;
adamc@693	1256 }
adamc@693	1257
adamc@736	1258 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1259 ctx->needs_sig = n;
adamc@736	1260 }
adamc@736	1261
adam@1936	1262 void uw_set_could_write_db(uw_context ctx, int n) {
adam@1936	1263 ctx->could_write_db = n;
adam@1936	1264 }
adam@1936	1265
adam@2056	1266 void uw_set_at_most_one_query(uw_context ctx, int n) {
adam@2056	1267 ctx->at_most_one_query = n;
adam@2056	1268 }
adam@2056	1269
adamc@667	1270
adam@1369	1271 static void uw_buffer_check_ctx(uw_context ctx, const char kind, uw_buffer b, size_t extra, const char *desc) {
adamc@666	1272 if (b->back - b->front < extra) {
adamc@666	1273 size_t desired = b->front - b->start + extra, next;
adamc@136	1274 char *new_heap;
adamc@136	1275
adamc@666	1276 next = b->back - b->start;
adamc@317	1277 if (next == 0)
adamc@317	1278 next = 1;
adamc@317	1279 for (; next < desired; next *= 2);
adamc@136	1280
adamc@1134	1281 if (next > b->max) {
adamc@1113	1282 if (desired <= b->max)
adamc@1113	1283 next = desired;
adamc@1113	1284 else
adamc@1113	1285 uw_error(ctx, FATAL, "Memory limit exceeded (%s)", kind);
adamc@1134	1286 }
adamc@1113	1287
adamc@666	1288 new_heap = realloc(b->start, next);
adamc@666	1289 b->front = new_heap + (b->front - b->start);
adamc@666	1290 b->back = new_heap + next;
adamc@136	1291
adamc@667	1292 if (new_heap != b->start) {
adamc@666	1293 b->start = new_heap;
adam@1389	1294 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously; increasing size to %llu", desc, (unsigned long long)next);
adamc@136	1295 }
adamc@136	1296
adamc@666	1297 b->start = new_heap;
adamc@136	1298 }
adamc@136	1299 }
adamc@136	1300
adamc@832	1301 void uw_check_heap(uw_context ctx, size_t extra) {
adam@1369	1302 uw_buffer_check_ctx(ctx, "heap", &ctx->heap, extra, "heap chunk");
adamc@666	1303 }
adamc@666	1304
adamc@832	1305 char *uw_heap_front(uw_context ctx) {
adamc@832	1306 return ctx->heap.front;
adamc@832	1307 }
adamc@832	1308
adamc@832	1309 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1310 ctx->heap.front = fr;
adamc@832	1311 }
adamc@832	1312
adam@1782	1313 void uw_begin_initializing(uw_context ctx) {
adam@1782	1314 ctx->amInitializing = 1;
adam@1782	1315 }
adam@1782	1316
adam@1782	1317 void uw_end_initializing(uw_context ctx) {
adam@1782	1318 ctx->amInitializing = 0;
adam@1782	1319 }
adam@1782	1320
adam@2013	1321 static void align_heap(uw_context ctx) {
adam@2013	1322 size_t posn = ctx->heap.front - ctx->heap.start;
adam@2013	1323
adam@2017	1324 if (posn % sizeof(void *) != 0) {
adam@2017	1325 size_t bump = sizeof(void ) - posn % sizeof(void );
adam@2013	1326 uw_check_heap(ctx, bump);
adam@2013	1327 ctx->heap.front += bump;
adam@2013	1328 }
adam@2013	1329 }
adam@2013	1330
adamc@311	1331 void *uw_malloc(uw_context ctx, size_t len) {
adam@2013	1332 // On some architectures, it's important that all word-sized memory accesses
adam@2013	1333 // be to word-aligned addresses, so we'll do a little bit of extra work here
adam@2013	1334 // in anticipation of a possible word-aligned access to the address we'll
adam@2013	1335 // return.
adam@2013	1336
adamc@136	1337 void *result;
adamc@136	1338
adam@1782	1339 if (ctx->amInitializing) {
adam@2017	1340 int error = posix_memalign(&result, sizeof(void *), len);
adam@2013	1341
adam@2013	1342 if (!error)
adam@1782	1343 return result;
adam@1782	1344 else
adam@2013	1345 uw_error(ctx, FATAL, "uw_malloc: posix_memalign() returns %d", error);
adam@1782	1346 } else {
adam@2013	1347 align_heap(ctx);
adam@2013	1348
adam@1782	1349 uw_check_heap(ctx, len);
adam@1782	1350
adam@1782	1351 result = ctx->heap.front;
adam@1782	1352 ctx->heap.front += len;
adam@1782	1353 return result;
adam@1782	1354 }
adamc@117	1355 }
adamc@117	1356
adamc@323	1357 void uw_begin_region(uw_context ctx) {
adam@2013	1358 align_heap(ctx);
adam@2013	1359
adamc@666	1360 regions r = (regions ) ctx->heap.front;
adamc@323	1361
adamc@323	1362 uw_check_heap(ctx, sizeof(regions));
adamc@323	1363
adamc@666	1364 ctx->heap.front += sizeof(regions);
adamc@323	1365
adamc@323	1366 r->next = ctx->regions;
adamc@323	1367 ctx->regions = r;
adamc@323	1368 }
adamc@323	1369
adamc@323	1370 void uw_end_region(uw_context ctx) {
adamc@323	1371 regions *r = ctx->regions;
adamc@323	1372
adamc@323	1373 if (r == NULL)
adamc@323	1374 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1375
adamc@666	1376 ctx->heap.front = (char *) r;
adamc@323	1377 ctx->regions = r->next;
adamc@323	1378 }
adamc@323	1379
adamc@324	1380 void uw_memstats(uw_context ctx) {
adam@1369	1381 printf("Headers: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->outHeaders), (unsigned long)uw_buffer_avail(&ctx->outHeaders));
adam@1369	1382 printf("Script: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->script), (unsigned long)uw_buffer_avail(&ctx->script));
adam@1369	1383 printf("Page: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->page), (unsigned long)uw_buffer_avail(&ctx->page));
adam@1369	1384 printf("Heap: %lu/%lu\n", (unsigned long)uw_buffer_used(&ctx->heap), (unsigned long)uw_buffer_avail(&ctx->heap));
adamc@324	1385 }
adamc@324	1386
adam@1915	1387 int uw_pagelen(uw_context ctx) {
adam@1915	1388 return ctx->page.front - ctx->page.start;
adam@1915	1389 }
adam@1915	1390
adamc@311	1391 int uw_send(uw_context ctx, int sock) {
adam@1949	1392 size_t target_length = (ctx->outHeaders.front - ctx->outHeaders.start) + 2 + (ctx->page.front - ctx->page.start);
adam@1949	1393
adam@1949	1394 if (ctx->output_buffer_size < target_length) {
adam@1949	1395 do {
adam@1949	1396 ctx->output_buffer_size *= 2;
adam@1949	1397 } while (ctx->output_buffer_size < target_length);
adam@1949	1398 ctx->output_buffer = realloc(ctx->output_buffer, ctx->output_buffer_size);
adam@1949	1399 }
adam@1949	1400
adam@1949	1401 memcpy(ctx->output_buffer, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adam@1949	1402 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start), "\r\n", 2);
adam@1949	1403 memcpy(ctx->output_buffer + (ctx->outHeaders.front - ctx->outHeaders.start) + 2, ctx->page.start, ctx->page.front - ctx->page.start);
adam@1949	1404
adam@1949	1405 return uw_really_send(sock, ctx->output_buffer, target_length);
adamc@462	1406 }
adamc@462	1407
adamc@856	1408 int uw_print(uw_context ctx, int fd) {
adamc@856	1409 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1410
adamc@856	1411 if (n < 0)
adamc@856	1412 return n;
adamc@856	1413
adamc@856	1414 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1415
adamc@856	1416 if (n < 0)
adamc@856	1417 return n;
adamc@856	1418
adamc@856	1419 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1420 }
adamc@856	1421
adamc@860	1422 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1423 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1424
adamc@860	1425 if (n < 0)
adamc@860	1426 return n;
adamc@860	1427
adamc@860	1428 n = output(data, "\r\n", 2);
adamc@860	1429
adamc@860	1430 if (n < 0)
adamc@860	1431 return n;
adamc@860	1432
adamc@860	1433 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1434 }
adamc@860	1435
adamc@462	1436 static void uw_check_headers(uw_context ctx, size_t extra) {
adam@1369	1437 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, extra);
adamc@462	1438 }
adamc@462	1439
adamc@462	1440 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1441 int len = strlen(s);
adamc@462	1442
adamc@462	1443 uw_check_headers(ctx, len + 1);
adamc@666	1444 strcpy(ctx->outHeaders.front, s);
adamc@666	1445 ctx->outHeaders.front += len;
adamc@562	1446 }
adamc@562	1447
adam@1934	1448 int uw_has_contentLength(uw_context ctx) {
adam@1934	1449 return strstr(ctx->outHeaders.start, "Content-length: ") != NULL;
adam@1934	1450 }
adam@1934	1451
adamc@1110	1452 void uw_clear_headers(uw_context ctx) {
adam@1369	1453 uw_buffer_reset(&ctx->outHeaders);
adamc@1110	1454 }
adamc@1110	1455
adam@1932	1456 void uw_Basis_clear_page(uw_context ctx) {
adam@1932	1457 uw_buffer_reset(&ctx->page);
adam@1932	1458 }
adam@1932	1459
adamc@562	1460 static void uw_check_script(uw_context ctx, size_t extra) {
adam@1369	1461 ctx_uw_buffer_check(ctx, "script", &ctx->script, extra);
adamc@562	1462 }
adamc@562	1463
adamc@562	1464 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1465 int len = strlen(s);
adamc@562	1466
adamc@562	1467 uw_check_script(ctx, len + 1);
adamc@666	1468 strcpy(ctx->script.front, s);
adamc@666	1469 ctx->script.front += len;
adamc@562	1470 }
adamc@562	1471
adam@1446	1472 const char *uw_get_real_script(uw_context ctx) {
adam@1671	1473 if (strstr(ctx->outHeaders.start, "Set-Cookie: ")) {
adam@1671	1474 uw_write_script(ctx, "sig=\"");
adam@1671	1475 uw_write_script(ctx, ctx->app->cookie_sig(ctx));
adam@1671	1476 uw_write_script(ctx, "\";");
adam@1671	1477 }
adam@1671	1478
adam@1446	1479 return ctx->script.start;
adam@1446	1480 }
adam@1446	1481
adamc@695	1482 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1483 if (s[0] == 0)
adamc@695	1484 return "";
adamc@695	1485 else {
adamc@695	1486 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1487 sprintf(r, " onload='%s'", s);
adamc@695	1488 return r;
adamc@695	1489 }
adamc@695	1490 }
adamc@695	1491
adamc@1042	1492 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1493 if (ctx->script_header[0] == 0)
adamc@1042	1494 return "";
adamc@1042	1495 else {
vshabanoff@1763	1496 char *r = uw_malloc(ctx, 37 + strlen(s));
vshabanoff@1763	1497 sprintf(r, " onunload='unloading=true;%s;unload()'", s);
adamc@1042	1498 return r;
adamc@1042	1499 }
adamc@1042	1500 }
adamc@1042	1501
adamc@694	1502 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1503 if (ctx->client == NULL) {
adamc@736	1504 if (ctx->needs_sig) {
adamc@1094	1505 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1506 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1507 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1508 return r;
adamc@736	1509 }
adamc@736	1510 else
adamc@736	1511 return "";
adamc@736	1512 } else {
adamc@1094	1513 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1514 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1515 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adam@1552	1516 sprintf(r, "isPost=%s;client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adam@1552	1517 (ctx->isPost ? "true" : "false"),
adamc@682	1518 ctx->client->id,
adamc@682	1519 ctx->client->pass,
adamc@1094	1520 ctx->app->url_prefix,
adamc@1094	1521 ctx->app->timeout,
adamc@736	1522 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1523 sig,
adamc@736	1524 ctx->needs_sig ? "\";" : "");
adamc@679	1525 return r;
adamc@668	1526 }
adamc@667	1527 }
adamc@667	1528
adamc@574	1529 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1530 char r, s2;
adamc@574	1531
adam@1446	1532 uw_check_heap(ctx, strlen(s) * 4 + 3);
adamc@574	1533
adamc@666	1534 r = s2 = ctx->heap.front;
adamc@574	1535 *s2++ = '"';
adamc@574	1536
adamc@574	1537 for (; *s; s++) {
adam@1286	1538 unsigned char c = *s;
adamc@574	1539
adamc@574	1540 switch (c) {
adamc@574	1541 case '"':
adamc@574	1542 strcpy(s2, "\\\"");
adamc@574	1543 s2 += 2;
adamc@574	1544 break;
adamc@1027	1545 case '\'':
adamc@1027	1546 strcpy(s2, "\\047");
adamc@1027	1547 s2 += 4;
adamc@1027	1548 break;
adamc@574	1549 case '\\':
adamc@574	1550 strcpy(s2, "\\\\");
adamc@574	1551 s2 += 2;
adamc@574	1552 break;
adam@1457	1553 case '<':
adam@1457	1554 strcpy(s2, "\\074");
adam@1457	1555 s2 += 4;
adam@1457	1556 break;
adamc@574	1557 default:
adam@1286	1558 if (isprint((int)c) \|\| c >= 128)
adamc@574	1559 *s2++ = c;
adamc@574	1560 else {
adam@1429	1561 sprintf(s2, "\\%03o", c);
adamc@574	1562 s2 += 4;
adamc@574	1563 }
adamc@574	1564 }
adamc@574	1565 }
adamc@574	1566
adamc@574	1567 strcpy(s2, "\"");
adamc@910	1568 ctx->heap.front = s2 + 2;
adamc@574	1569 return r;
adamc@574	1570 }
adamc@574	1571
adam@1286	1572 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c1) {
adam@1286	1573 unsigned char c = c1;
adamc@1025	1574 char r, s2;
adamc@1025	1575
adam@1446	1576 uw_check_heap(ctx, 7);
adamc@1025	1577
adamc@1025	1578 r = s2 = ctx->heap.front;
adamc@1025	1579 *s2++ = '"';
adamc@1025	1580
adamc@1025	1581 switch (c) {
adamc@1025	1582 case '"':
adamc@1025	1583 strcpy(s2, "\\\"");
adamc@1025	1584 s2 += 2;
adamc@1025	1585 break;
adamc@1027	1586 case '\'':
adamc@1027	1587 strcpy(s2, "\\047");
adamc@1027	1588 s2 += 4;
adamc@1027	1589 break;
adamc@1025	1590 case '\\':
adamc@1025	1591 strcpy(s2, "\\\\");
adamc@1025	1592 s2 += 2;
adamc@1025	1593 break;
adam@1457	1594 case '<':
adam@1457	1595 strcpy(s2, "\\074");
adam@1457	1596 s2 += 4;
adam@1457	1597 break;
adamc@1025	1598 default:
adam@1286	1599 if (isprint((int)c) \|\| c >= 128)
adamc@1025	1600 *s2++ = c;
adamc@1025	1601 else {
adam@1429	1602 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1025	1603 s2 += 4;
adamc@1025	1604 }
adamc@1025	1605 }
adamc@1025	1606
adamc@1025	1607 strcpy(s2, "\"");
adamc@1025	1608 ctx->heap.front = s2 + 2;
adamc@1025	1609 return r;
adamc@1025	1610 }
adamc@1025	1611
adamc@574	1612 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1613 char r, s2;
adamc@574	1614
adam@1446	1615 uw_check_script(ctx, strlen(s) * 4 + 3);
adamc@574	1616
adamc@666	1617 r = s2 = ctx->script.front;
adamc@574	1618 *s2++ = '"';
adamc@574	1619
adamc@574	1620 for (; *s; s++) {
adam@1286	1621 unsigned char c = *s;
adamc@574	1622
adamc@574	1623 switch (c) {
adamc@577	1624 case '\'':
adamc@1027	1625 strcpy(s2, "\\");
adamc@574	1626 s2 += 2;
adamc@574	1627 break;
adamc@574	1628 case '\\':
adamc@574	1629 strcpy(s2, "\\\\");
adamc@574	1630 s2 += 2;
adamc@574	1631 break;
adam@1457	1632 case '<':
adam@1457	1633 strcpy(s2, "\\074");
adam@1457	1634 s2 += 4;
adam@1457	1635 break;
adamc@574	1636 default:
adam@1286	1637 if (isprint((int)c) \|\| c >= 128)
adamc@574	1638 *s2++ = c;
adamc@574	1639 else {
adam@1429	1640 sprintf(s2, "\\%03o", c);
adamc@574	1641 s2 += 4;
adamc@574	1642 }
adamc@574	1643 }
adamc@574	1644 }
adamc@574	1645
adamc@574	1646 strcpy(s2, "\"");
adamc@666	1647 ctx->script.front = s2 + 1;
adamc@574	1648 return r;
adamc@574	1649 }
adamc@574	1650
adamc@682	1651 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1652 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1653 return "null";
adamc@682	1654 else {
adamc@682	1655 int len;
adamc@682	1656 char *r;
adamc@682	1657
adamc@682	1658 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1659 r = ctx->heap.front;
adamc@682	1660 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1661 ctx->heap.front += len+1;
adamc@682	1662 return r;
adamc@682	1663 }
adamc@682	1664 }
adamc@682	1665
adam@1446	1666 uw_Basis_source uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1667 int len;
adamc@577	1668 size_t s_len = strlen(s);
adamc@562	1669
grrwlf@1998	1670 if(ctx->id < 0)
grrwlf@1998	1671 uw_error(ctx, FATAL, "Attempt to create client source using inappropriate context");
grrwlf@1998	1672
adam@1446	1673 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1674 sprintf(ctx->script.front, "s%d_%llu=sc(exec(%n", ctx->id, ctx->source_count, &len);
adamc@666	1675 ctx->script.front += len;
adamc@666	1676 strcpy(ctx->script.front, s);
adamc@666	1677 ctx->script.front += s_len;
adamc@970	1678 strcpy(ctx->script.front, "));");
adamc@972	1679 ctx->script.front += 3;
adamc@562	1680
adam@1446	1681 uw_Basis_source r = {ctx->id, ctx->source_count++};
adam@1446	1682 return r;
adam@1446	1683 }
adam@1446	1684
adam@1446	1685 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_source src, uw_Basis_string s) {
adamc@577	1686 int len;
adamc@577	1687 size_t s_len = strlen(s);
adamc@577	1688
adam@1446	1689 uw_check_script(ctx, 15 + 2 * INTS_MAX + s_len);
adam@1446	1690 sprintf(ctx->script.front, "sv(s%d_%llu,exec(%n", src.context, src.source, &len);
adamc@666	1691 ctx->script.front += len;
adamc@666	1692 strcpy(ctx->script.front, s);
adamc@666	1693 ctx->script.front += s_len;
adamc@970	1694 strcpy(ctx->script.front, "));");
adamc@972	1695 ctx->script.front += 3;
adamc@577	1696
adamc@577	1697 return uw_unit_v;
adamc@577	1698 }
adamc@577	1699
adamc@311	1700 static void uw_check(uw_context ctx, size_t extra) {
adam@1369	1701 ctx_uw_buffer_check(ctx, "page", &ctx->page, extra);
adamc@117	1702 }
adamc@117	1703
adamc@311	1704 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1705 *(ctx->page.front)++ = c;
adam@1413	1706 *ctx->page.front = 0;
adamc@117	1707 }
adamc@117	1708
adamc@311	1709 void uw_writec(uw_context ctx, char c) {
adam@1413	1710 uw_check(ctx, 2);
adamc@311	1711 uw_writec_unsafe(ctx, c);
adamc@117	1712 }
adamc@117	1713
adam@2085	1714 void uw_Basis_writec(uw_context ctx, char c) {
adam@2085	1715 uw_writec(ctx, c);
adam@2085	1716 }
adam@2085	1717
adamc@311	1718 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1719 int len = strlen(s);
adamc@666	1720 memcpy(ctx->page.front, s, len);
adamc@666	1721 ctx->page.front += len;
adamc@117	1722 }
adamc@117	1723
adamc@311	1724 void uw_write(uw_context ctx, const char* s) {
adamc@311	1725 uw_check(ctx, strlen(s) + 1);
adamc@311	1726 uw_write_unsafe(ctx, s);
adamc@666	1727 *ctx->page.front = 0;
adamc@102	1728 }
adamc@106	1729
ziv@2204	1730 void uw_recordingStart(uw_context ctx) {
ziv@2262	1731 if (ctx->numRecording++ == 0) {
ziv@2262	1732 ctx->recordingOffset = ctx->page.front - ctx->page.start;
ziv@2262	1733 }
ziv@2204	1734 }
ziv@2204	1735
ziv@2204	1736 char *uw_recordingRead(uw_context ctx) {
ziv@2262	1737 // Only the outermost recorder can read unless the recording is empty.
ziv@2262	1738 char *recording = ctx->page.start + ctx->recordingOffset;
ziv@2262	1739 if (--ctx->numRecording > 0 && recording != ctx->page.front) {
ziv@2262	1740 return NULL;
ziv@2262	1741 }
ziv@2262	1742 return strdup(recording);
ziv@2204	1743 }
ziv@2204	1744
adamc@311	1745 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1746 char *result;
adamc@136	1747 int len;
adamc@311	1748 uw_check_heap(ctx, INTS_MAX);
adamc@666	1749 result = ctx->heap.front;
adamc@276	1750 sprintf(result, "%lld%n", n, &len);
adamc@666	1751 ctx->heap.front += len+1;
adamc@136	1752 return result;
adamc@106	1753 }
adamc@106	1754
adamc@311	1755 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1756 char *result;
adamc@136	1757 int len;
adamc@311	1758 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1759 result = ctx->heap.front;
adam@1920	1760 sprintf(result, "%.16g%n", n, &len);
adamc@666	1761 ctx->heap.front += len+1;
adamc@136	1762 return result;
adamc@106	1763 }
adamc@106	1764
adamc@311	1765 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1766 int len = strlen(s);
adamc@136	1767 char result, p;
adamc@311	1768 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1769
adamc@666	1770 result = p = ctx->heap.front;
adamc@136	1771
adamc@136	1772 for (; *s; s++) {
adamc@1054	1773 unsigned char c = *s;
adamc@136	1774
adamc@136	1775 if (c == '"') {
adamc@136	1776 strcpy(p, """);
adamc@136	1777 p += 6;
adamc@136	1778 } else if (c == '&') {
adamc@136	1779 strcpy(p, "&");
adamc@136	1780 p += 5;
adamc@136	1781 }
adamc@1059	1782 else
adamc@136	1783 *p++ = c;
adamc@136	1784 }
adamc@136	1785
adamc@137	1786 *p++ = 0;
adamc@666	1787 ctx->heap.front = p;
adamc@136	1788 return result;
adamc@106	1789 }
adamc@106	1790
adamc@1011	1791 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1792 char result, p;
adamc@1011	1793 uw_check_heap(ctx, 7);
adamc@1011	1794
adamc@1011	1795 result = p = ctx->heap.front;
adamc@1011	1796
adamc@1011	1797 if (c == '"') {
adamc@1011	1798 strcpy(p, """);
adamc@1011	1799 p += 6;
adamc@1011	1800 } else if (c == '&') {
adamc@1011	1801 strcpy(p, "&");
adamc@1011	1802 p += 5;
adamc@1011	1803 }
adamc@1059	1804 else
adamc@1011	1805 *p++ = c;
adamc@1011	1806
adamc@1011	1807 *p++ = 0;
adamc@1011	1808 ctx->heap.front = p;
adamc@1011	1809 return result;
adamc@1011	1810 }
adamc@1011	1811
adamc@721	1812 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1813 return s;
adamc@721	1814 }
adamc@721	1815
adamc@311	1816 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1817 int len;
adamc@117	1818
adamc@666	1819 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1820 ctx->page.front += len;
adamc@106	1821 }
adamc@106	1822
adamc@428	1823 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1824 uw_check(ctx, INTS_MAX);
adamc@311	1825 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1826
adamc@428	1827 return uw_unit_v;
adamc@106	1828 }
adamc@106	1829
adamc@428	1830 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1831 int len;
adamc@117	1832
adamc@311	1833 uw_check(ctx, FLOATS_MAX);
adamc@666	1834 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1835 ctx->page.front += len;
adamc@428	1836
adamc@428	1837 return uw_unit_v;
adamc@117	1838 }
adamc@117	1839
adamc@428	1840 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1841 uw_check(ctx, strlen(s) * 6);
adamc@117	1842
adamc@106	1843 for (; *s; s++) {
adamc@1054	1844 unsigned char c = *s;
adamc@106	1845
adamc@106	1846 if (c == '"')
adamc@311	1847 uw_write_unsafe(ctx, """);
adamc@136	1848 else if (c == '&')
adamc@311	1849 uw_write_unsafe(ctx, "&");
adamc@1059	1850 else
adamc@311	1851 uw_writec_unsafe(ctx, c);
adamc@106	1852 }
adamc@428	1853
adamc@428	1854 return uw_unit_v;
adamc@106	1855 }
adamc@120	1856
adamc@1011	1857 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1858 uw_check(ctx, 6);
adamc@1011	1859
adamc@1011	1860 if (c == '"')
adamc@1011	1861 uw_write_unsafe(ctx, """);
adamc@1011	1862 else if (c == '&')
adamc@1011	1863 uw_write_unsafe(ctx, "&");
adamc@1059	1864 else
adamc@1011	1865 uw_writec_unsafe(ctx, c);
adamc@1011	1866
adamc@1011	1867 return uw_unit_v;
adamc@1011	1868 }
adamc@1011	1869
adamc@120	1870
adamc@311	1871 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1872 int len;
adamc@137	1873 char *r;
adamc@137	1874
adamc@311	1875 uw_check_heap(ctx, INTS_MAX);
adamc@666	1876 r = ctx->heap.front;
adamc@276	1877 sprintf(r, "%lld%n", n, &len);
adamc@666	1878 ctx->heap.front += len+1;
adamc@137	1879 return r;
adamc@120	1880 }
adamc@120	1881
adamc@682	1882 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1883 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1884 return "";
adamc@682	1885 else {
adamc@682	1886 int len;
adamc@682	1887 char *r;
adamc@679	1888
adamc@682	1889 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1890 r = ctx->heap.front;
adamc@682	1891 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1892 ctx->heap.front += len+1;
adamc@682	1893 return r;
adamc@682	1894 }
adamc@679	1895 }
adamc@679	1896
adamc@311	1897 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1898 int len;
adamc@137	1899 char *r;
adamc@137	1900
adamc@311	1901 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1902 r = ctx->heap.front;
adamc@137	1903 sprintf(r, "%g%n", n, &len);
adamc@666	1904 ctx->heap.front += len+1;
adamc@137	1905 return r;
adamc@120	1906 }
adamc@120	1907
adamc@311	1908 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1909 char r, p;
adamc@137	1910
adamc@925	1911 if (s[0] == '\0')
adamc@925	1912 return "_";
adamc@925	1913
adamc@925	1914 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1915
adamc@925	1916 r = p = ctx->heap.front;
adamc@925	1917 if (s[0] == '_')
adamc@925	1918 *p++ = '_';
adamc@925	1919
adamc@925	1920 for (; *s; s++) {
adamc@1087	1921 unsigned char c = *s;
adamc@137	1922
adamc@137	1923 if (c == ' ')
adamc@137	1924 *p++ = '+';
adamc@137	1925 else if (isalnum(c))
adamc@137	1926 *p++ = c;
adamc@137	1927 else {
adamc@1259	1928 sprintf(p, ".%02X", c);
adamc@137	1929 p += 3;
adamc@137	1930 }
adamc@137	1931 }
adamc@137	1932
adamc@137	1933 *p++ = 0;
adamc@666	1934 ctx->heap.front = p;
adamc@137	1935 return r;
adamc@120	1936 }
adamc@120	1937
adamc@311	1938 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1939 if (b == uw_Basis_False)
adamc@186	1940 return "0";
adamc@186	1941 else
adamc@186	1942 return "1";
adamc@186	1943 }
adamc@186	1944
adam@1620	1945 char *uw_Basis_urlifySource(uw_context ctx, uw_Basis_source src) {
adam@1620	1946 char *r;
adam@1620	1947 int len;
adam@1620	1948 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1620	1949 r = ctx->heap.front;
adam@1620	1950 sprintf(r, "%d/%llu%n", src.context, src.source, &len);
adam@1620	1951 ctx->heap.front += len+1;
adam@1620	1952 return r;
adam@1620	1953 }
adam@1620	1954
adamc@311	1955 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1956 int len;
adamc@120	1957
adamc@666	1958 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1959 ctx->page.front += len;
adamc@120	1960 }
adamc@120	1961
adamc@428	1962 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1963 uw_check(ctx, INTS_MAX);
adamc@311	1964 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1965
adamc@428	1966 return uw_unit_v;
adamc@120	1967 }
adamc@120	1968
adamc@682	1969 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1970 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1971 int len;
phurst@1981	1972
adamc@682	1973 uw_check(ctx, INTS_MAX + 1);
adamc@682	1974 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1975 ctx->page.front += len;
adamc@682	1976 }
phurst@1981	1977
adamc@679	1978 return uw_unit_v;
adamc@679	1979 }
adamc@679	1980
adamc@428	1981 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1982 int len;
adamc@120	1983
adamc@311	1984 uw_check(ctx, FLOATS_MAX);
adamc@666	1985 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1986 ctx->page.front += len;
adamc@428	1987
adamc@428	1988 return uw_unit_v;
adamc@120	1989 }
adamc@120	1990
adamc@488	1991 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@1376	1992 return uw_Basis_urlifyInt(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adamc@488	1993 }
adamc@488	1994
adam@1404	1995 uw_unit uw_Basis_urlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1404	1996 return uw_Basis_urlifyInt_w(ctx, (uw_Basis_int)t.seconds * 1000000 + t.microseconds);
adam@1404	1997 }
adam@1404	1998
adamc@428	1999 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	2000 if (s[0] == '\0') {
adamc@925	2001 uw_check(ctx, 1);
adamc@925	2002 uw_writec_unsafe(ctx, '_');
adamc@925	2003 return uw_unit_v;
adamc@925	2004 }
adamc@925	2005
adamc@925	2006 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	2007
adamc@925	2008 if (s[0] == '_')
adamc@925	2009 uw_writec_unsafe(ctx, '_');
adamc@120	2010
adamc@120	2011 for (; *s; s++) {
adamc@1087	2012 unsigned char c = *s;
adamc@120	2013
adamc@120	2014 if (c == ' ')
adamc@311	2015 uw_writec_unsafe(ctx, '+');
adamc@120	2016 else if (isalnum(c))
adamc@311	2017 uw_writec_unsafe(ctx, c);
adamc@120	2018 else {
adamc@1259	2019 sprintf(ctx->page.front, ".%02X", c);
adamc@666	2020 ctx->page.front += 3;
adamc@120	2021 }
adamc@120	2022 }
adamc@428	2023
adamc@428	2024 return uw_unit_v;
adamc@120	2025 }
adamc@120	2026
adamc@428	2027 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2028 if (b == uw_Basis_False)
adamc@311	2029 uw_writec(ctx, '0');
adamc@186	2030 else
adamc@311	2031 uw_writec(ctx, '1');
adamc@428	2032
adamc@428	2033 return uw_unit_v;
adamc@186	2034 }
adamc@186	2035
adam@1620	2036 uw_unit uw_Basis_urlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1620	2037 int len;
phurst@1981	2038
adam@1620	2039 uw_check(ctx, 2 * INTS_MAX + 2);
adam@1620	2040 sprintf(ctx->page.front, "%d/%llu%n", src.context, src.source, &len);
adam@1620	2041 ctx->page.front += len;
phurst@1981	2042
adam@1620	2043 return uw_unit_v;
adam@1620	2044 }
adam@1620	2045
adamc@120	2046
adamc@311	2047 static char uw_unurlify_advance(char s) {
adamc@144	2048 char *new_s = strchr(s, '/');
adamc@120	2049
adamc@120	2050 if (new_s)
adamc@120	2051 *new_s++ = 0;
adamc@120	2052 else
adamc@144	2053 new_s = strchr(s, 0);
adamc@144	2054
adamc@144	2055 return new_s;
adamc@144	2056 }
adamc@144	2057
adamc@311	2058 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	2059 char new_s = uw_unurlify_advance(s);
adamc@311	2060 uw_Basis_int r;
adamc@120	2061
adamc@276	2062 r = atoll(*s);
adamc@120	2063 *s = new_s;
adamc@120	2064 return r;
adamc@120	2065 }
adamc@120	2066
adamc@311	2067 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	2068 char new_s = uw_unurlify_advance(s);
adamc@311	2069 uw_Basis_float r;
adamc@120	2070
adamc@120	2071 r = atof(*s);
adamc@120	2072 *s = new_s;
adamc@120	2073 return r;
adamc@120	2074 }
adamc@120	2075
adamc@488	2076 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adam@1365	2077 uw_Basis_int n = uw_Basis_unurlifyInt(ctx, s);
adam@1365	2078 uw_Basis_time r = {n / 1000000, n % 1000000};
adam@1365	2079 return r;
adamc@488	2080 }
adamc@488	2081
adamc@1023	2082 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	2083 char s1, s2 = s;
adamc@144	2084 int n;
adamc@136	2085
adamc@1023	2086 if (!fromClient) {
adamc@1023	2087 if (*s2 == '_')
adamc@1023	2088 ++s2;
adamc@1259	2089 else if ((s2[0] == '%' \|\| s2[0] == '.') && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	2090 s2 += 3;
adamc@1023	2091 }
adamc@925	2092
adamc@927	2093 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	2094 unsigned char c = *s2;
adamc@136	2095
adamc@136	2096 switch (c) {
adamc@136	2097 case '+':
adamc@136	2098 *s1 = ' ';
adamc@136	2099 break;
adamc@136	2100 case '%':
adamc@169	2101 if (s2[1] == 0)
adamc@311	2102 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	2103 if (s2[2] == 0)
adamc@311	2104 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	2105 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2106 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@136	2107 *s1 = n;
adamc@136	2108 s2 += 2;
adamc@136	2109 break;
adamc@1259	2110 case '.':
adamc@1259	2111 if (!fromClient) {
adamc@1259	2112 if (s2[1] == 0)
adamc@1259	2113 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@1259	2114 if (s2[2] == 0)
adamc@1259	2115 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@1259	2116 if (sscanf(s2+1, "%02X", &n) != 1)
adam@1444	2117 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", uw_Basis_htmlifyString(ctx, s2));
adamc@1259	2118 *s1 = n;
adamc@1259	2119 s2 += 2;
adamc@1259	2120 break;
adamc@1259	2121 }
adamc@136	2122 default:
adamc@136	2123 *s1 = c;
adamc@136	2124 }
adamc@136	2125 }
adamc@136	2126 *s1++ = 0;
adamc@144	2127 return s1;
adamc@144	2128 }
adamc@144	2129
adamc@311	2130 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	2131 char new_s = uw_unurlify_advance(s);
adamc@311	2132 uw_Basis_bool r;
phurst@1981	2133
adamc@186	2134 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	2135 r = uw_Basis_False;
adamc@186	2136 else
adamc@311	2137 r = uw_Basis_True;
adamc@186	2138
adamc@186	2139 *s = new_s;
adamc@186	2140 return r;
adamc@186	2141 }
adamc@186	2142
adamc@311	2143 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	2144 char new_s = uw_unurlify_advance(s);
adamc@1134	2145 char *r;
adamc@1134	2146 int len;
adamc@144	2147
adamc@200	2148 len = strlen(*s);
adamc@311	2149 uw_check_heap(ctx, len + 1);
adamc@144	2150
adamc@666	2151 r = ctx->heap.front;
adamc@1023	2152 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	2153 *s = new_s;
adamc@1023	2154 return r;
adamc@1023	2155 }
adamc@1023	2156
adamc@1109	2157 uw_Basis_unit uw_Basis_unurlifyUnit(uw_context ctx, char **s) {
adamc@1109	2158 s = uw_unurlify_advance(s);
adamc@1109	2159 return uw_unit_v;
adamc@1109	2160 }
adamc@1109	2161
adamc@1023	2162 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	2163 char new_s = uw_unurlify_advance(s);
adamc@1134	2164 char *r;
adamc@1134	2165 int len;
adamc@1023	2166
adamc@1023	2167 len = strlen(*s);
adamc@1023	2168 uw_check_heap(ctx, len + 1);
adamc@1023	2169
adamc@1023	2170 r = ctx->heap.front;
adamc@1023	2171 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	2172 *s = new_s;
adamc@136	2173 return r;
adamc@120	2174 }
adamc@135	2175
adamc@135	2176
adamc@311	2177 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	2178 int len;
adamc@286	2179 char *r;
adamc@286	2180
adamc@311	2181 uw_check_heap(ctx, INTS_MAX);
adamc@666	2182 r = ctx->heap.front;
adamc@286	2183 sprintf(r, "%lld%n", n, &len);
adamc@666	2184 ctx->heap.front += len+1;
adamc@286	2185 return r;
adamc@286	2186 }
adamc@286	2187
adamc@428	2188 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	2189 int len;
adamc@286	2190
adamc@311	2191 uw_check(ctx, INTS_MAX);
adamc@666	2192 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	2193 ctx->page.front += len;
phurst@1981	2194
adamc@428	2195 return uw_unit_v;
adamc@286	2196 }
adamc@286	2197
adam@1358	2198 char *uw_Basis_htmlifySpecialChar(uw_context ctx, unsigned char ch) {
adam@1358	2199 unsigned int n = ch;
adam@1358	2200 int len;
adam@1358	2201 char *r;
adam@1358	2202
adam@1358	2203 uw_check_heap(ctx, INTS_MAX+3);
adam@1358	2204 r = ctx->heap.front;
adam@1358	2205 sprintf(r, "&#%u;%n", n, &len);
adam@1358	2206 ctx->heap.front += len+1;
adam@1358	2207 return r;
adam@1358	2208 }
adam@1358	2209
adam@1358	2210 uw_unit uw_Basis_htmlifySpecialChar_w(uw_context ctx, unsigned char ch) {
adam@1358	2211 unsigned int n = ch;
adam@1358	2212 int len;
adam@1358	2213
adam@1358	2214 uw_check(ctx, INTS_MAX+3);
adam@1358	2215 sprintf(ctx->page.front, "&#%u;%n", n, &len);
adam@1358	2216 ctx->page.front += len;
adam@1358	2217 return uw_unit_v;
adam@1358	2218 }
adam@1358	2219
adamc@311	2220 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	2221 int len;
adamc@286	2222 char *r;
adamc@286	2223
adamc@311	2224 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2225 r = ctx->heap.front;
adamc@286	2226 sprintf(r, "%g%n", n, &len);
adamc@666	2227 ctx->heap.front += len+1;
adamc@286	2228 return r;
adamc@286	2229 }
adamc@286	2230
adamc@428	2231 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	2232 int len;
adamc@286	2233
adamc@311	2234 uw_check(ctx, FLOATS_MAX);
adamc@666	2235 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	2236 ctx->page.front += len;
adamc@428	2237
adamc@428	2238 return uw_unit_v;
adamc@286	2239 }
adamc@286	2240
adam@1365	2241 char *uw_Basis_jsifyTime(uw_context ctx, uw_Basis_time t) {
adam@1360	2242 int len;
adam@1360	2243 char *r;
adam@1360	2244
adam@1360	2245 uw_check_heap(ctx, INTS_MAX);
adam@1360	2246 r = ctx->heap.front;
adamc@1377	2247 sprintf(r, "%lld%n", (uw_Basis_int)t.seconds * 1000000 + t.microseconds, &len);
adam@1360	2248 ctx->heap.front += len+1;
adam@1360	2249 return r;
adam@1360	2250 }
adam@1360	2251
adam@1365	2252 uw_unit uw_Basis_jsifyInt_w(uw_context ctx, uw_Basis_int n) {
adam@1360	2253 int len;
adam@1360	2254
adam@1360	2255 uw_check(ctx, INTS_MAX);
adam@1360	2256 sprintf(ctx->page.front, "%lld%n", (uw_Basis_int)n, &len);
adam@1360	2257 ctx->page.front += len;
phurst@1981	2258
adam@1360	2259 return uw_unit_v;
adam@1360	2260 }
adam@1360	2261
adam@1444	2262 char uw_Basis_htmlifyString(uw_context ctx, const char s) {
adamc@137	2263 char r, s2;
adamc@137	2264
adamc@311	2265 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	2266
adamc@666	2267 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	2268 unsigned char c = *s;
adamc@137	2269
adamc@137	2270 switch (c) {
adamc@137	2271 case '<':
adamc@137	2272 strcpy(s2, "<");
adamc@137	2273 s2 += 4;
adamc@137	2274 break;
adamc@137	2275 case '&':
adamc@137	2276 strcpy(s2, "&");
adamc@137	2277 s2 += 5;
adamc@137	2278 break;
adamc@137	2279 default:
adamc@1059	2280 *s2++ = c;
adamc@137	2281 }
adamc@137	2282 }
adamc@137	2283
adamc@137	2284 *s2++ = 0;
adamc@666	2285 ctx->heap.front = s2;
adamc@137	2286 return r;
adamc@135	2287 }
adamc@135	2288
adamc@428	2289 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2290 uw_check(ctx, strlen(s) * 6);
adamc@135	2291
adamc@135	2292 for (; *s; s++) {
adamc@1054	2293 unsigned char c = *s;
adamc@135	2294
adamc@135	2295 switch (c) {
adamc@135	2296 case '<':
adamc@311	2297 uw_write_unsafe(ctx, "<");
adamc@135	2298 break;
adamc@135	2299 case '&':
adamc@311	2300 uw_write_unsafe(ctx, "&");
adamc@135	2301 break;
adamc@135	2302 default:
adamc@1059	2303 uw_writec_unsafe(ctx, c);
adamc@135	2304 }
adamc@135	2305 }
adamc@428	2306
adamc@428	2307 return uw_unit_v;
adamc@135	2308 }
adamc@180	2309
adamc@311	2310 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2311 if (b == uw_Basis_False)
adamc@286	2312 return "False";
adamc@286	2313 else
adamc@286	2314 return "True";
adamc@286	2315 }
adamc@286	2316
adamc@428	2317 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2318 if (b == uw_Basis_False) {
adamc@311	2319 uw_check(ctx, 6);
adamc@666	2320 strcpy(ctx->page.front, "False");
adamc@666	2321 ctx->page.front += 5;
adamc@286	2322 } else {
adamc@311	2323 uw_check(ctx, 5);
adamc@666	2324 strcpy(ctx->page.front, "True");
adamc@666	2325 ctx->page.front += 4;
adamc@286	2326 }
adamc@428	2327
adamc@428	2328 return uw_unit_v;
adamc@286	2329 }
adamc@286	2330
adamc@436	2331 #define TIME_FMT "%x %X"
adamc@438	2332 #define TIME_FMT_PG "%Y-%m-%d %T"
adam@1632	2333 #define TIME_FMT_JS "%Y/%m/%d %T"
adamc@436	2334
adam@1629	2335 uw_Basis_string uw_Basis_timeToString(uw_context, uw_Basis_time);
adam@1629	2336
adamc@436	2337 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adam@1629	2338 return uw_Basis_htmlifyString(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2339 }
adamc@436	2340
adamc@436	2341 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adam@1629	2342 return uw_Basis_htmlifyString_w(ctx, uw_Basis_timeToString(ctx, t));
adamc@436	2343 }
adamc@436	2344
adam@1446	2345 char *uw_Basis_htmlifySource(uw_context ctx, uw_Basis_source src) {
adam@1446	2346 int len;
adam@1446	2347 char *r;
adam@1446	2348
adam@1446	2349 uw_check_heap(ctx, 2 * INTS_MAX + 2);
adam@1446	2350 r = ctx->heap.front;
adam@1446	2351 sprintf(r, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2352 ctx->heap.front += len+1;
adam@1446	2353 return r;
adam@1446	2354 }
adam@1446	2355
adam@1446	2356 uw_unit uw_Basis_htmlifySource_w(uw_context ctx, uw_Basis_source src) {
adam@1446	2357 int len;
adam@1446	2358
adam@1446	2359 uw_check(ctx, 2 * INTS_MAX + 1);
adam@1446	2360 sprintf(ctx->page.front, "s%d_%llu%n", src.context, src.source, &len);
adam@1446	2361 ctx->page.front += len;
phurst@1981	2362
adam@1446	2363 return uw_unit_v;
adam@1446	2364 }
adam@1446	2365
adamc@821	2366 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2367 while (n >= 0) {
adam@1388	2368 if (*s == 0)
adam@1388	2369 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adam@1388	2370
adam@1388	2371 if (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 strsub bound");
adamc@821	2379 }
adamc@821	2380
adamc@821	2381 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2382 while (n >= 0) {
adam@1388	2383 if (*s == 0 \|\| n == 0)
adam@1388	2384 return s;
adam@1388	2385
adam@1388	2386 --n;
adam@1388	2387 ++s;
adam@1388	2388 }
adam@1388	2389
adam@1388	2390 uw_error(ctx, FATAL, "Negative strsuffix bound");
adamc@821	2391 }
adamc@821	2392
adamc@828	2393 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2394 return strlen(s);
adamc@828	2395 }
adamc@828	2396
adam@1388	2397 uw_Basis_bool uw_Basis_strlenGe(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adam@1388	2398 while (n > 0) {
adam@1388	2399 if (*s == 0)
adam@1388	2400 return uw_Basis_False;
adam@1388	2401
adam@1388	2402 --n;
adam@1388	2403 ++s;
adam@1388	2404 }
adam@1388	2405
adam@1388	2406 return uw_Basis_True;
adam@1388	2407 }
adam@1388	2408
adamc@829	2409 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2410 return strchr(s, ch);
adamc@829	2411 }
adamc@829	2412
adamc@831	2413 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2414 return strcspn(s, chs);
adamc@831	2415 }
adamc@831	2416
adamc@829	2417 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2418 uw_Basis_string r = strchr(s, ch);
adamc@829	2419 if (r == NULL)
adamc@829	2420 return NULL;
adamc@829	2421 else {
adamc@829	2422 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2423 *nr = r - s;
adamc@829	2424 return nr;
adamc@829	2425 }
adamc@829	2426 }
adamc@829	2427
adam@1390	2428 uw_Basis_int uw_Basis_strsindex(uw_context ctx, const char haystack, const char *needle) {
adam@1390	2429 uw_Basis_string r = strstr(haystack, needle);
adam@1390	2430 if (r == NULL)
adam@1390	2431 return NULL;
adam@1390	2432 else {
adam@1390	2433 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adam@1390	2434 *nr = r - haystack;
adam@1390	2435 return nr;
adam@1390	2436 }
adam@1390	2437 }
adam@1390	2438
adamc@311	2439 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2440 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2441 char *s;
adamc@180	2442
adamc@311	2443 uw_check_heap(ctx, len);
adamc@180	2444
adamc@666	2445 s = ctx->heap.front;
adamc@180	2446
adamc@180	2447 strcpy(s, s1);
adamc@180	2448 strcat(s, s2);
adamc@666	2449 ctx->heap.front += len;
adamc@180	2450
adamc@180	2451 return s;
adamc@180	2452 }
adamc@278	2453
adamc@829	2454 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2455 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2456
adamc@829	2457 if (start < 0)
adamc@829	2458 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2459 if (len < 0)
adamc@829	2460 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2461 if (start + len > full_len)
adamc@829	2462 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2463
adamc@829	2464 if (start + len == full_len)
adamc@829	2465 return &s[start];
adamc@829	2466 else {
adamc@829	2467 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2468 memcpy(r, s+start, len);
adamc@829	2469 r[len] = 0;
adamc@829	2470 return r;
adamc@829	2471 }
phurst@1981	2472
adamc@829	2473 }
adamc@829	2474
adamc@1023	2475 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2476 char *r;
adamc@1023	2477
adamc@1023	2478 uw_check_heap(ctx, 2);
adamc@1023	2479 r = ctx->heap.front;
adamc@1023	2480 r[0] = ch;
adamc@1023	2481 r[1] = 0;
adamc@1023	2482
adamc@1023	2483 ctx->heap.front += 2;
adamc@1023	2484
adamc@1023	2485 return r;
adamc@1023	2486 }
adamc@1023	2487
adamc@737	2488 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2489 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2490 char *s;
adamc@278	2491
adamc@311	2492 uw_check_heap(ctx, len);
adamc@278	2493
adamc@666	2494 s = ctx->heap.front;
adamc@278	2495
adamc@278	2496 strcpy(s, s1);
adamc@666	2497 ctx->heap.front += len;
adamc@278	2498
adamc@278	2499 return s;
adamc@278	2500 }
adamc@280	2501
adam@1295	2502 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2503 if (ctx->error_message[0]) {
adam@1295	2504 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2505 ctx->error_message[0] = 0;
adam@1295	2506 return s;
adam@1295	2507 } else
adam@1295	2508 return NULL;
adam@1295	2509 }
adam@1295	2510
adamc@737	2511 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2512 if (s1)
adamc@737	2513 return uw_strdup(ctx, s1);
adamc@493	2514 else
adamc@493	2515 return NULL;
adamc@493	2516 }
adamc@493	2517
adamc@742	2518 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2519 char *r = uw_malloc(ctx, len);
adamc@742	2520 memcpy(r, p, len);
adamc@742	2521 return r;
adamc@742	2522 }
adamc@280	2523
adamc@879	2524 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2525
adamc@311	2526 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2527 int len;
adamc@281	2528 char *r;
adamc@281	2529
adamc@311	2530 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2531 r = ctx->heap.front;
adamc@879	2532 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2533 ctx->heap.front += len+1;
adamc@281	2534 return r;
adamc@281	2535 }
adamc@281	2536
adamc@467	2537 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2538 if (n == NULL)
adamc@467	2539 return "NULL";
adamc@467	2540 else
adamc@467	2541 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2542 }
adamc@467	2543
adam@1920	2544 char *uw_sqlfmtFloat = "%.16g::float8%n";
adamc@879	2545
adamc@311	2546 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2547 int len;
adamc@281	2548 char *r;
adamc@281	2549
adamc@311	2550 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2551 r = ctx->heap.front;
adamc@879	2552 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2553 ctx->heap.front += len+1;
adamc@281	2554 return r;
adamc@281	2555 }
adamc@281	2556
adamc@467	2557 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2558 if (n == NULL)
adamc@467	2559 return "NULL";
adamc@467	2560 else
adamc@467	2561 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2562 }
adamc@467	2563
adam@1834	2564 int uw_Estrings = 1, uw_sql_type_annotations = 1;
adamc@879	2565 char *uw_sqlsuffixString = "::text";
adamc@1011	2566 char *uw_sqlsuffixChar = "::char";
adamc@281	2567
adamc@311	2568 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2569 char r, s2;
adamc@280	2570
adamc@879	2571 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2572
adamc@666	2573 r = s2 = ctx->heap.front;
adamc@879	2574 if (uw_Estrings)
adamc@879	2575 *s2++ = 'E';
adamc@280	2576 *s2++ = '\'';
adamc@280	2577
adamc@280	2578 for (; *s; s++) {
adamc@280	2579 char c = *s;
adamc@280	2580
adamc@280	2581 switch (c) {
adamc@280	2582 case '\'':
adamc@885	2583 if (uw_Estrings)
adamc@885	2584 strcpy(s2, "\\'");
adamc@885	2585 else
adamc@885	2586 strcpy(s2, "''");
adamc@280	2587 s2 += 2;
adamc@280	2588 break;
adamc@280	2589 case '\\':
adamc@885	2590 if (uw_Estrings) {
adamc@885	2591 strcpy(s2, "\\\\");
adamc@885	2592 s2 += 2;
adamc@885	2593 } else
adamc@885	2594 *s2++ = '\\';
adamc@280	2595 break;
adamc@280	2596 default:
adamc@1150	2597 if (isprint((int)c))
adamc@280	2598 *s2++ = c;
adamc@879	2599 else if (uw_Estrings) {
adam@1857	2600 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@280	2601 s2 += 4;
adamc@280	2602 }
adamc@879	2603 else
adam@1689	2604 *s2++ = c; // I hope this is safe to do... don't know how to support UTF-8 outside Postgres otherwise!
adamc@280	2605 }
adamc@280	2606 }
adamc@280	2607
adamc@879	2608 *s2++ = '\'';
adamc@879	2609 strcpy(s2, uw_sqlsuffixString);
adamc@879	2610 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2611 return r;
adamc@280	2612 }
adamc@281	2613
adamc@1011	2614 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2615 char r, s2;
adamc@1011	2616
adamc@1011	2617 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2618
adamc@1011	2619 r = s2 = ctx->heap.front;
adamc@1011	2620 if (uw_Estrings)
adamc@1011	2621 *s2++ = 'E';
adamc@1011	2622 *s2++ = '\'';
adamc@1011	2623
adamc@1011	2624 switch (c) {
adamc@1011	2625 case '\'':
adamc@1011	2626 if (uw_Estrings)
adamc@1011	2627 strcpy(s2, "\\'");
adamc@1011	2628 else
adamc@1011	2629 strcpy(s2, "''");
adamc@1011	2630 s2 += 2;
adamc@1011	2631 break;
adamc@1011	2632 case '\\':
adamc@1011	2633 if (uw_Estrings) {
adamc@1011	2634 strcpy(s2, "\\\\");
adamc@1011	2635 s2 += 2;
adamc@1011	2636 } else
adamc@1011	2637 *s2++ = '\\';
adamc@1011	2638 break;
adamc@1011	2639 default:
adamc@1150	2640 if (isprint((int)c))
adamc@1011	2641 *s2++ = c;
adamc@1011	2642 else if (uw_Estrings) {
adam@1857	2643 sprintf(s2, "\\%03o", (unsigned char)c);
adamc@1011	2644 s2 += 4;
adamc@1011	2645 }
adamc@1011	2646 else
adamc@1011	2647 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2648 }
adamc@1011	2649
adamc@1011	2650 *s2++ = '\'';
adamc@1011	2651 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2652 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2653 return r;
adamc@1011	2654 }
adamc@1011	2655
adamc@879	2656 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2657
adam@1867	2658 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2659 char r, s2;
adamc@737	2660 size_t i;
adamc@737	2661
adam@1867	2662 uw_check_heap(ctx, b.size * 5 + 4 + strlen(uw_sqlsuffixBlob));
adamc@737	2663
adamc@737	2664 r = s2 = ctx->heap.front;
adamc@879	2665 if (uw_Estrings)
adamc@879	2666 *s2++ = 'E';
adam@1867	2667 else
adam@1867	2668 *s2++ = 'X';
adamc@737	2669 *s2++ = '\'';
adamc@737	2670
adamc@737	2671 for (i = 0; i < b.size; ++i) {
adam@1867	2672 unsigned char c = b.data[i];
adam@1867	2673
adam@1867	2674 if (uw_Estrings) {
adam@1867	2675 switch (c) {
adam@1867	2676 case '\'':
adamc@885	2677 strcpy(s2, "\\'");
adam@1867	2678 s2 += 2;
adam@1867	2679 break;
adam@1867	2680 case '\\':
adamc@885	2681 strcpy(s2, "\\\\\\\\");
adamc@885	2682 s2 += 4;
adam@1867	2683 break;
adam@1867	2684 default:
adam@1867	2685 if (isprint((int)c))
adam@1867	2686 *s2++ = c;
adam@1867	2687 else {
adam@1867	2688 sprintf(s2, "\\\\%03o", c);
adam@1867	2689 s2 += 5;
adam@1867	2690 }
adamc@737	2691 }
adam@1867	2692 } else {
adam@1867	2693 sprintf(s2, "%02X", c);
adam@1867	2694 s2 += 2;
adamc@737	2695 }
phurst@1981	2696 }
adamc@737	2697
adamc@879	2698 *s2++ = '\'';
adamc@879	2699 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2700 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2701 return r;
adamc@737	2702 }
adamc@737	2703
adamc@682	2704 char *uw_Basis_sqlifyChannel(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 + 7);
adamc@682	2710 r = ctx->heap.front;
adamc@879	2711 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2712 ctx->heap.front += len+1;
adamc@682	2713 return r;
adamc@682	2714 }
adamc@682	2715
adamc@682	2716 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2717 int len;
adamc@682	2718 char *r;
adamc@682	2719 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2720
adamc@682	2721 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2722 r = ctx->heap.front;
adamc@682	2723 sprintf(r, "%lld%n", combo, &len);
adamc@682	2724 ctx->heap.front += len+1;
adamc@682	2725 return r;
adamc@682	2726 }
adamc@682	2727
adamc@879	2728 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2729
adamc@682	2730 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2731 int len;
adamc@682	2732 char *r;
adamc@682	2733
adamc@682	2734 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2735 r = ctx->heap.front;
adamc@879	2736 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2737 ctx->heap.front += len+1;
adamc@682	2738 return r;
adamc@682	2739 }
adamc@682	2740
adamc@682	2741 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2742 int len;
adamc@682	2743 char *r;
adamc@682	2744
adamc@682	2745 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2746 r = ctx->heap.front;
adamc@682	2747 sprintf(r, "%u%n", cli, &len);
adamc@682	2748 ctx->heap.front += len+1;
adamc@682	2749 return r;
adamc@682	2750 }
adamc@682	2751
adamc@467	2752 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2753 if (s == NULL)
adamc@467	2754 return "NULL";
adamc@467	2755 else
adamc@467	2756 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2757 }
adamc@467	2758
adamc@311	2759 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2760 if (b == uw_Basis_False)
adamc@281	2761 return "FALSE";
adamc@281	2762 else
adamc@281	2763 return "TRUE";
adamc@281	2764 }
adamc@282	2765
adamc@467	2766 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2767 if (b == NULL)
adamc@467	2768 return "NULL";
adamc@467	2769 else
adamc@467	2770 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2771 }
adamc@467	2772
adamc@439	2773 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2774 size_t len;
adamc@682	2775 char r, s;
adam@1392	2776 struct tm stm = {};
adam@1392	2777 stm.tm_isdst = -1;
adamc@682	2778
adam@1365	2779 if (localtime_r(&t.seconds, &stm)) {
adamc@682	2780 s = uw_malloc(ctx, TIMES_MAX);
adam@1364	2781 len = strftime(s, TIMES_MAX, TIME_FMT_PG, &stm);
adam@1834	2782 if (uw_sql_type_annotations) {
adam@1834	2783 if (t.microseconds) {
adam@1834	2784 r = uw_malloc(ctx, len + 21);
adam@1834	2785 sprintf(r, "'%s.%06u'::timestamp", s, t.microseconds);
adam@1834	2786 } else {
adam@1834	2787 r = uw_malloc(ctx, len + 14);
adam@1834	2788 sprintf(r, "'%s'::timestamp", s);
adam@1834	2789 }
adam@1367	2790 } else {
adam@1834	2791 r = uw_malloc(ctx, len + 3);
adam@1834	2792 sprintf(r, "'%s'", s);
adam@1367	2793 }
adamc@682	2794 return r;
adamc@682	2795 } else
adamc@682	2796 return "<Invalid time>";
adamc@682	2797 }
adamc@682	2798
adamc@682	2799 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2800 size_t len;
adamc@439	2801 char *r;
adam@1392	2802 struct tm stm = {};
adam@1392	2803 stm.tm_isdst = -1;
adamc@439	2804
adam@1365	2805 if (localtime_r(&t.seconds, &stm)) {
adamc@439	2806 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2807 r = ctx->heap.front;
adamc@439	2808 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2809 ctx->heap.front += len+1;
adamc@439	2810 return r;
adamc@439	2811 } else
adamc@439	2812 return "<Invalid time>";
adamc@439	2813 }
adamc@439	2814
adam@1364	2815 char *uw_Basis_ensqlTime(uw_context ctx, uw_Basis_time t) {
adam@1364	2816 size_t len;
adam@1364	2817 char *r;
adam@1392	2818 struct tm stm = {};
adam@1392	2819 stm.tm_isdst = -1;
adam@1364	2820
adam@1365	2821 if (localtime_r(&t.seconds, &stm)) {
adam@1364	2822 uw_check_heap(ctx, TIMES_MAX);
adam@1364	2823 r = ctx->heap.front;
adam@1365	2824 len = strftime(r, TIMES_MAX-7, TIME_FMT_PG, &stm);
adam@1365	2825 ctx->heap.front += len;
adam@1365	2826 sprintf(ctx->heap.front, ".%06u", t.microseconds);
adam@1365	2827 ctx->heap.front += 8;
adam@1364	2828 return r;
adam@1364	2829 } else
adam@1364	2830 return "<Invalid time>";
adam@1364	2831 }
adam@1364	2832
adamc@467	2833 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2834 if (t == NULL)
adamc@467	2835 return "NULL";
adamc@467	2836 else
adamc@467	2837 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2838 }
adamc@467	2839
adamc@311	2840 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2841 static uw_Basis_int true = 1;
adamc@311	2842 static uw_Basis_int false = 0;
adamc@282	2843
adamc@311	2844 if (b == uw_Basis_False)
adamc@282	2845 return (char *)&false;
adamc@282	2846 else
adamc@282	2847 return (char *)&true;
adamc@282	2848 }
adamc@284	2849
adamc@311	2850 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2851 int len;
adamc@284	2852 char *r;
adamc@284	2853
adamc@311	2854 uw_check_heap(ctx, INTS_MAX);
adamc@666	2855 r = ctx->heap.front;
adamc@284	2856 sprintf(r, "%lld%n", n, &len);
adamc@666	2857 ctx->heap.front += len+1;
adamc@284	2858 return r;
adamc@284	2859 }
adamc@285	2860
adamc@311	2861 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2862 int len;
adamc@285	2863 char *r;
adamc@285	2864
adamc@311	2865 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2866 r = ctx->heap.front;
adamc@285	2867 sprintf(r, "%g%n", n, &len);
adamc@666	2868 ctx->heap.front += len+1;
adamc@285	2869 return r;
adamc@285	2870 }
adamc@285	2871
adamc@821	2872 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2873 char *r = uw_malloc(ctx, 2);
adamc@821	2874 r[0] = ch;
adamc@821	2875 r[1] = 0;
adamc@821	2876 return r;
adamc@821	2877 }
adamc@821	2878
adamc@311	2879 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2880 if (b == uw_Basis_False)
adamc@285	2881 return "False";
adamc@285	2882 else
adamc@285	2883 return "True";
adamc@285	2884 }
adamc@288	2885
adam@1359	2886 uw_Basis_string uw_Basis_timef(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2887 size_t len;
adam@1352	2888 char *r;
adam@1392	2889 struct tm stm = {};
adam@1392	2890 stm.tm_isdst = -1;
adam@1352	2891
adam@1365	2892 if (localtime_r(&t.seconds, &stm)) {
adam@1352	2893 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2894 r = ctx->heap.front;
adam@1352	2895 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2896 ctx->heap.front += len+1;
adam@1352	2897 return r;
adam@1352	2898 } else
adam@1352	2899 return "<Invalid time>";
adam@1352	2900 }
adam@1352	2901
adam@1629	2902 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adam@1629	2903 return uw_Basis_timef(ctx, ctx->app->time_format, t);
adam@1629	2904 }
adam@1629	2905
adamc@311	2906 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2907 char *endptr;
adamc@311	2908 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2909
adamc@288	2910 if (s != '\0' && endptr == '\0') {
adamc@311	2911 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2912 *r = n;
adamc@288	2913 return r;
adamc@288	2914 } else
adamc@288	2915 return NULL;
adamc@288	2916 }
adamc@289	2917
adamc@311	2918 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2919 char *endptr;
adamc@311	2920 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2921
adamc@289	2922 if (s != '\0' && endptr == '\0') {
adamc@311	2923 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2924 *r = n;
adamc@289	2925 return r;
adamc@289	2926 } else
adamc@289	2927 return NULL;
adamc@289	2928 }
adamc@289	2929
adamc@821	2930 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2931 if (s[0] == 0) {
adamc@821	2932 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2933 r[0] = 0;
adamc@821	2934 return r;
adamc@821	2935 } else if (s[1] != 0)
adamc@821	2936 return NULL;
adamc@821	2937 else {
adamc@821	2938 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2939 r[0] = s[0];
adamc@821	2940 return r;
adamc@821	2941 }
adamc@821	2942 }
adamc@821	2943
adamc@311	2944 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2945 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2946 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2947
adamc@289	2948 if (!strcasecmp (s, "True"))
adamc@289	2949 return &true;
adamc@289	2950 else if (!strcasecmp (s, "False"))
adamc@289	2951 return &false;
adamc@289	2952 else
adamc@289	2953 return NULL;
adamc@289	2954 }
adamc@292	2955
adamc@436	2956 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2957 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1374	2958 struct tm stm = {};
adam@1392	2959 stm.tm_isdst = -1;
adamc@436	2960
adamc@439	2961 if (dot) {
adamc@439	2962 *dot = 0;
adamc@439	2963 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2964 *dot = '.';
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;
adamc@439	2969 }
adamc@439	2970 else {
adamc@439	2971 *dot = '.';
adamc@439	2972 return NULL;
adamc@439	2973 }
adamc@436	2974 }
adamc@439	2975 else {
adam@2072	2976 if (strptime(s, ctx->app->time_format, &stm) == end) {
adamc@439	2977 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2978 r->seconds = mktime(&stm);
adam@1365	2979 r->microseconds = 0;
adamc@439	2980 return r;
adam@2072	2981 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@2072	2982 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@2072	2983 r->seconds = mktime(&stm);
adam@2072	2984 r->microseconds = 0;
adam@2072	2985 return r;
adam@2072	2986 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2987 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	2988 r->seconds = mktime(&stm);
adam@1365	2989 r->microseconds = 0;
adamc@439	2990 return r;
adam@1632	2991 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	2992 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1632	2993 r->seconds = mktime(&stm);
adam@1632	2994 r->microseconds = 0;
adam@1632	2995 return r;
adamc@439	2996 }
adamc@439	2997 else
adamc@439	2998 return NULL;
adamc@439	2999 }
adamc@436	3000 }
adamc@436	3001
adam@1352	3002 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	3003 char *end = strchr(s, 0);
adam@1374	3004 struct tm stm = {};
adam@1392	3005 stm.tm_isdst = -1;
adam@1352	3006
adam@1352	3007 if (strptime(s, fmt, &stm) == end) {
adam@1352	3008 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1365	3009 r->seconds = mktime(&stm);
adam@1365	3010 r->microseconds = 0;
adam@1352	3011 return r;
adam@1352	3012 }
adam@1352	3013 else
adam@1352	3014 return NULL;
adam@1352	3015 }
adam@1352	3016
adamc@311	3017 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	3018 char *endptr;
adamc@311	3019 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	3020
adamc@292	3021 if (s != '\0' && endptr == '\0')
adamc@292	3022 return n;
adamc@292	3023 else
adam@1444	3024 uw_error(ctx, FATAL, "Can't parse int: %s", uw_Basis_htmlifyString(ctx, s));
adamc@292	3025 }
adamc@293	3026
adamc@682	3027 #include <errno.h>
adamc@682	3028
adamc@678	3029 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	3030 unsigned long long n;
adamc@682	3031
adamc@682	3032 if (sscanf(s, "%llu", &n) < 1)
adam@1444	3033 uw_error(ctx, FATAL, "Can't parse channel: %s", uw_Basis_htmlifyString(ctx, s));
adamc@682	3034 else {
adamc@682	3035 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	3036 return ch;
adamc@682	3037 }
adamc@682	3038 }
adamc@682	3039
adamc@682	3040 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	3041 char *endptr;
adamc@682	3042 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	3043
adamc@678	3044 if (s != '\0' && endptr == '\0')
adamc@678	3045 return n;
adamc@678	3046 else
adam@1444	3047 uw_error(ctx, FATAL, "Can't parse client: %s", uw_Basis_htmlifyString(ctx, s));
adamc@678	3048 }
adamc@678	3049
adamc@311	3050 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	3051 char *endptr;
adamc@311	3052 uw_Basis_float n = strtod(s, &endptr);
adamc@293	3053
adamc@293	3054 if (s != '\0' && endptr == '\0')
adamc@293	3055 return n;
adamc@293	3056 else
adam@1444	3057 uw_error(ctx, FATAL, "Can't parse float: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3058 }
adamc@293	3059
adamc@821	3060 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	3061 if (s[0] == 0)
adamc@821	3062 return 0;
adamc@821	3063 else if (s[1] != 0)
adam@1444	3064 uw_error(ctx, FATAL, "Can't parse char: %s", uw_Basis_htmlifyString(ctx, s));
adamc@821	3065 else
adamc@821	3066 return s[0];
adamc@821	3067 }
adamc@821	3068
adamc@311	3069 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	3070 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	3071 return uw_Basis_True;
adamc@296	3072 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	3073 return uw_Basis_False;
adamc@293	3074 else
adam@1444	3075 uw_error(ctx, FATAL, "Can't parse bool: %s", uw_Basis_htmlifyString(ctx, s));
adamc@293	3076 }
adamc@436	3077
adam@1352	3078 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	3079 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	3080 struct tm stm = {};
adam@1392	3081 stm.tm_isdst = -1;
adam@1352	3082
adam@1352	3083 if (dot) {
adam@1352	3084 *dot = 0;
adam@1352	3085 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	3086 *dot = '.';
adam@1410	3087 char usec[] = "000000";
adam@1410	3088 int len = strlen(dot+1);
adam@1410	3089 memcpy(usec, dot+1, len < 6 ? len : 6);
adam@1410	3090 uw_Basis_time r = { mktime(&stm), atoi(usec) };
adam@1365	3091 return r;
adam@1352	3092 }
adam@1352	3093 else {
adam@1352	3094 *dot = '.';
adam@1444	3095 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3096 }
adam@1352	3097 }
adam@1352	3098 else {
adam@1352	3099 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3100 uw_Basis_time r = { mktime(&stm) };
adam@1365	3101 return r;
adam@1352	3102 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3103 uw_Basis_time r = { mktime(&stm) };
adam@1365	3104 return r;
adam@1352	3105 } else
adam@1444	3106 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adam@1352	3107 }
adam@1352	3108 }
adam@1352	3109
adamc@436	3110 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	3111 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	3112 struct tm stm = {};
adam@1392	3113 stm.tm_isdst = -1;
adamc@436	3114
adamc@438	3115 if (dot) {
adamc@438	3116 *dot = 0;
adamc@438	3117 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	3118 *dot = '.';
adam@1365	3119 {
adam@1365	3120 uw_Basis_time r = { mktime(&stm) };
adam@1365	3121 return r;
adam@1365	3122 }
adamc@438	3123 }
adamc@438	3124 else {
adamc@438	3125 *dot = '.';
adam@1444	3126 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3127 }
adamc@438	3128 }
adamc@438	3129 else {
adam@2072	3130 if (strptime(s, ctx->app->time_format, &stm) == end) {
adam@2072	3131 uw_Basis_time r = { mktime(&stm) };
adam@2072	3132 return r;
adam@2072	3133 } else if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1365	3134 uw_Basis_time r = { mktime(&stm) };
adam@1365	3135 return r;
adam@1365	3136 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1365	3137 uw_Basis_time r = { mktime(&stm) };
adam@1365	3138 return r;
adam@1632	3139 } else if (strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1632	3140 uw_Basis_time r = { mktime(&stm) };
adam@1632	3141 return r;
adam@1365	3142 } else
adam@1444	3143 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@438	3144 }
adamc@436	3145 }
adamc@457	3146
adam@1352	3147 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	3148 char *end = strchr(s, 0);
adamc@939	3149 struct tm stm = {};
adam@1392	3150 stm.tm_isdst = -1;
adamc@939	3151
adam@1365	3152 if (strptime(s, fmt, &stm) == end) {
adam@1365	3153 uw_Basis_time r = { mktime(&stm) };
adam@1365	3154 return r;
adam@1365	3155 } else
adam@1444	3156 uw_error(ctx, FATAL, "Can't parse time: %s", uw_Basis_htmlifyString(ctx, s));
adamc@939	3157 }
adamc@939	3158
adamc@742	3159 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	3160 char *r = ctx->heap.front;
adamc@742	3161 uw_Basis_blob b = {len, r};
adamc@742	3162
adamc@742	3163 uw_check_heap(ctx, len);
adamc@742	3164
adam@1992	3165 if (s[0] == '\\' && s[1] == 'x') {
adam@1992	3166 s += 2;
adam@1992	3167
adam@1992	3168 while (*s) {
adam@1992	3169 int n;
adam@1992	3170 sscanf(s, "%02x", &n);
adam@1992	3171 *r++ = n;
adam@1992	3172 s += 2;
adam@1992	3173 }
adam@1992	3174 } else {
adam@1992	3175 while (*s) {
adam@1992	3176 if (s[0] == '\\') {
adam@1992	3177 if (s[1] == '\\') {
adam@1992	3178 *r++ = '\\';
adam@1992	3179 s += 2;
adam@1992	3180 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adam@1992	3181 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adam@1992	3182 s += 4;
adam@1992	3183 }
adam@1992	3184 else {
adam@1992	3185 *r++ = '\\';
adam@1992	3186 ++s;
adam@1992	3187 }
adam@1992	3188 } else {
adam@1992	3189 *r++ = s[0];
adamc@742	3190 ++s;
adamc@742	3191 }
adamc@742	3192 }
adamc@742	3193 }
adamc@742	3194
adamc@742	3195 b.size = r - ctx->heap.front;
adamc@742	3196 ctx->heap.front = r;
adam@1992	3197
adamc@742	3198 return b;
adamc@742	3199 }
adamc@742	3200
adam@1402	3201 #define THE_PAST "expires=Sat, 01-Jan-2011 00:00:00 GMT"
adamc@1052	3202
adamc@463	3203 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	3204 int len = strlen(c);
adamc@854	3205 char *p = ctx->outHeaders.start;
adamc@474	3206
adamc@1134	3207 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	3208 char *p2;
adamc@474	3209 p += 13;
adamc@474	3210 p2 = strchr(p, '=');
adamc@474	3211
adamc@474	3212 if (p2) {
adamc@474	3213 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	3214
adamc@474	3215 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	3216 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	3217 return NULL;
adamc@1052	3218 else {
adamc@1052	3219 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	3220 memcpy(ret, p2+1, sz);
adamc@1052	3221 ret[sz] = 0;
adamc@1052	3222 return ret;
adamc@1052	3223 }
adamc@474	3224 }
adamc@474	3225 }
adamc@474	3226 }
adamc@463	3227
adamc@1134	3228 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	3229 char *p2;
adamc@1051	3230
adamc@854	3231 while (1) {
adamc@1051	3232 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	3233 if ((p2 = strchr(p, ';'))) {
adamc@1051	3234 size_t n = p2 - (p + len);
adamc@1051	3235 char *r = uw_malloc(ctx, n);
adamc@1051	3236 memcpy(r, p + 1 + len, n-1);
adamc@1051	3237 r[n-1] = 0;
adamc@1051	3238 return r;
adamc@1051	3239 } else
adamc@1051	3240 return p + 1 + len;
adamc@1134	3241 } else if ((p = strchr(p, ';')))
adamc@854	3242 p += 2;
adamc@463	3243 else
adamc@463	3244 return NULL;
adamc@463	3245 }
adamc@463	3246 }
adamc@792	3247
adamc@792	3248 return NULL;
adamc@457	3249 }
adamc@462	3250
adam@1877	3251 static void set_cookie(uw_context ctx) {
adam@1877	3252 if (ctx->usedSig)
adam@1877	3253 ctx->needsResig = 1;
adam@1877	3254 }
adam@1877	3255
adamc@1050	3256 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	3257 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	3258 uw_write_header(ctx, c);
adamc@462	3259 uw_write_header(ctx, "=");
adamc@462	3260 uw_write_header(ctx, v);
adamc@466	3261 uw_write_header(ctx, "; path=");
adamc@466	3262 uw_write_header(ctx, prefix);
adamc@1050	3263 if (expires) {
adamc@1050	3264 char formatted[30];
adam@1392	3265 struct tm tm = {};
adam@1392	3266 tm.tm_isdst = -1;
adamc@1050	3267
adam@1365	3268 gmtime_r(&expires->seconds, &tm);
adamc@1050	3269
adamc@1050	3270 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	3271
adamc@1050	3272 uw_write_header(ctx, "; expires=");
adamc@1050	3273 uw_write_header(ctx, formatted);
adamc@1050	3274 }
adamc@1050	3275 if (secure)
adamc@1050	3276 uw_write_header(ctx, "; secure");
adamc@462	3277 uw_write_header(ctx, "\r\n");
adam@1877	3278 set_cookie(ctx);
adamc@462	3279
adamc@462	3280 return uw_unit_v;
adamc@462	3281 }
adamc@667	3282
adamc@1050	3283 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	3284 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	3285 uw_write_header(ctx, c);
adamc@1050	3286 uw_write_header(ctx, "=; path=");
adamc@1050	3287 uw_write_header(ctx, prefix);
adamc@1052	3288 uw_write_header(ctx, "; " THE_PAST "\r\n");
adam@1877	3289 set_cookie(ctx);
adamc@1050	3290
adamc@1050	3291 return uw_unit_v;
adamc@1050	3292 }
adamc@1050	3293
adamc@1113	3294 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	3295
adamc@682	3296 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	3297 unsigned i;
adamc@682	3298 delta *d;
adamc@671	3299
adamc@682	3300 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	3301 if (ctx->deltas[i].client == client)
adamc@682	3302 return &ctx->deltas[i];
adamc@671	3303
adamc@682	3304 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	3305 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	3306 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	3307
adamc@682	3308 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adam@1369	3309 uw_buffer_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	3310 }
adamc@671	3311
adamc@682	3312 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	3313 d->client = client;
adam@1369	3314 uw_buffer_reset(&d->msgs);
adamc@682	3315 return d;
adamc@671	3316 }
adamc@671	3317
adamc@668	3318 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	3319 if (ctx->client == NULL)
adamc@682	3320 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	3321
adamc@682	3322 return new_channel(ctx->client);
adamc@668	3323 }
adamc@668	3324
adamc@668	3325 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	3326 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	3327 size_t len;
adamc@682	3328 int preLen;
adamc@682	3329 char pre[INTS_MAX + 2];
adamc@668	3330
adamc@682	3331 len = strlen(msg);
adamc@682	3332
adamc@682	3333 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	3334
adam@1369	3335 ctx_uw_buffer_append(ctx, "messages", &d->msgs, pre, preLen);
adam@1369	3336 ctx_uw_buffer_append(ctx, "messages", &d->msgs, msg, len);
adam@1369	3337 ctx_uw_buffer_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	3338
adamc@671	3339 return uw_unit_v;
adamc@668	3340 }
adamc@671	3341
adam@1327	3342 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	3343 int i;
adamc@1131	3344 cleanup *cl;
adamc@1131	3345
adamc@1131	3346 if (ctx->client)
adamc@1131	3347 release_client(ctx->client);
adamc@1131	3348
adamc@1131	3349 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	3350 cl->func(cl->arg);
adamc@1131	3351
adamc@1131	3352 ctx->cleanup_front = ctx->cleanup;
adamc@1131	3353
adamc@1131	3354 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3355 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3356 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	3357
adamc@1131	3358 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	3359 if (ctx->transactionals[i].free)
adam@1327	3360 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	3361
adam@1941	3362 if (ctx->app && ctx->transaction_started) {
adam@1941	3363 ctx->transaction_started = 0;
adam@1941	3364 return ctx->app->db_rollback(ctx);
adam@1941	3365 } else
adam@1941	3366 return 0;
adamc@1131	3367 }
adamc@1131	3368
adam@1956	3369 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	3370 const char uw_begin_html5[] = "<!DOCTYPE html><html>";
adam@1728	3371
adam@1877	3372 extern int uw_hash_blocksize;
adam@1877	3373
adam@1877	3374 static const char sig_intro[] = "<input type=\"hidden\" name=\"Sig\" value=\"";
adam@1877	3375
adam@1877	3376 static char find_sig(char haystack) {
adam@1877	3377 int i;
adam@1877	3378 char *s = strstr(haystack, sig_intro);
adam@1877	3379
adam@1877	3380 if (!s \|\| strlen(haystack) - (s - haystack) - (sizeof sig_intro - 1) < uw_hash_blocksize*2+1)
adam@1877	3381 return NULL;
phurst@1981	3382
adam@1877	3383 s += sizeof sig_intro - 1;
adam@1877	3384
adam@1877	3385 for (i = 0; i < uw_hash_blocksize*2; ++i)
adam@1877	3386 if (!isxdigit((int)s[i]))
adam@1877	3387 return NULL;
adam@1877	3388
adam@1877	3389 if (s[i] != '"')
adam@1877	3390 return NULL;
adam@1877	3391
adam@1877	3392 return s;
adam@1877	3393 }
adam@1877	3394
adam@2033	3395 static pthread_mutex_t message_send_mutex = PTHREAD_MUTEX_INITIALIZER;
adam@2033	3396
adam@1938	3397 int uw_commit(uw_context ctx) {
adamc@1104	3398 int i;
adam@1877	3399 char *sig;
adamc@1104	3400
adamc@1131	3401 if (uw_has_error(ctx)) {
adam@1327	3402 uw_rollback(ctx, 0);
adam@1938	3403 return 0;
adamc@1131	3404 }
adamc@1131	3405
adamc@1104	3406 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3407 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	3408 if (ctx->transactionals[i].commit) {
adamc@1083	3409 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3410 if (uw_has_error(ctx)) {
adam@1327	3411 uw_rollback(ctx, 0);
adam@1938	3412 return 0;
adamc@1131	3413 }
adamc@1131	3414 }
adamc@771	3415
adam@2033	3416 // Here's an important lock to provide the abstraction that all messages from one transaction are sent as an atomic unit.
adam@2033	3417 if (ctx->used_deltas > 0)
adam@2033	3418 pthread_mutex_lock(&message_send_mutex);
adam@2033	3419
adam@2000	3420 if (ctx->transaction_started) {
adam@2000	3421 int code = ctx->app->db_commit(ctx);
adam@2000	3422
adam@2000	3423 if (code) {
adam@2033	3424 if (ctx->used_deltas > 0)
adam@2033	3425 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3426
adam@2000	3427 if (ctx->client)
adam@2000	3428 release_client(ctx->client);
adam@2000	3429
adam@2000	3430 if (code == -1) {
adam@2000	3431 // This case is for a serialization failure, which is not really an "error."
adam@2000	3432 // The transaction will restart, so we should rollback any transactionals
adam@2000	3433 // that triggered above.
adam@2000	3434
adam@2000	3435 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3436 if (ctx->transactionals[i].rollback != NULL)
adam@2000	3437 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2000	3438
adam@2000	3439 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3440 if (ctx->transactionals[i].free)
adam@2000	3441 ctx->transactionals[i].free(ctx->transactionals[i].data, 1);
adam@2000	3442
grrwlf@2030	3443 return 1;
adam@2000	3444 }
adam@2000	3445
adam@2000	3446 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2000	3447 if (ctx->transactionals[i].free)
adam@2000	3448 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3449
adam@2000	3450 uw_set_error_message(ctx, "Error running SQL COMMIT");
adam@2000	3451 return 0;
adam@2000	3452 }
adam@2000	3453 }
adam@2000	3454
adamc@1104	3455 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3456 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3457 if (ctx->transactionals[i].commit) {
adamc@1083	3458 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3459 if (uw_has_error(ctx)) {
adam@2033	3460 if (ctx->used_deltas > 0)
adam@2033	3461 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3462
adam@2033	3463 if (ctx->client)
adam@2033	3464 release_client(ctx->client);
adam@2033	3465
adam@2033	3466 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3467 if (ctx->transactionals[i].rollback != NULL)
adam@2033	3468 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adam@2033	3469
adam@2033	3470 for (i = ctx->used_transactionals-1; i >= 0; --i)
adam@2033	3471 if (ctx->transactionals[i].free)
adam@2033	3472 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adam@2000	3473
adam@1938	3474 return 0;
adamc@1131	3475 }
adamc@1131	3476 }
adamc@1131	3477
adamc@682	3478 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3479 delta *d = &ctx->deltas[i];
adamc@682	3480 client *c = find_client(d->client);
adamc@682	3481
adam@1551	3482 assert (c != NULL);
adam@1551	3483 assert(c->mode == USED);
adamc@682	3484
adam@1447	3485 client_send(c, &d->msgs, ctx->script.start, uw_buffer_used(&ctx->script));
adamc@682	3486 }
adamc@682	3487
adam@2033	3488 if (ctx->used_deltas > 0)
adam@2033	3489 pthread_mutex_unlock(&message_send_mutex);
adam@2033	3490
adamc@682	3491 if (ctx->client)
adamc@685	3492 release_client(ctx->client);
adamc@771	3493
adamc@1104	3494 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3495 if (ctx->transactionals[i].free)
adam@1327	3496 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3497
vshabanoff@1726	3498 uw_check(ctx, 1);
vshabanoff@1726	3499 *ctx->page.front = 0;
adam@1413	3500
adam@1956	3501 if (!ctx->returning_indirectly
adam@1956	3502 && (ctx->app->is_html5
adam@1956	3503 ? !strncmp(ctx->page.start, uw_begin_html5, sizeof uw_begin_html5 - 1)
adam@1956	3504 : !strncmp(ctx->page.start, uw_begin_xhtml, sizeof uw_begin_xhtml - 1))) {
adam@1728	3505 char *s;
adam@1728	3506
adam@1728	3507 // Splice script data into appropriate part of page, also adding <head> if needed.
adam@1956	3508 s = ctx->page.start + (ctx->app->is_html5 ? sizeof uw_begin_html5 - 1 : sizeof uw_begin_xhtml - 1);
adam@1728	3509 s = strchr(s, '<');
adam@1728	3510 if (s == NULL) {
adam@1728	3511 // Weird. Document has no tags!
adam@1728	3512
adam@1728	3513 uw_write(ctx, "<head></head><body></body>");
adam@1728	3514 uw_check(ctx, 1);
adam@1728	3515 *ctx->page.front = 0;
adam@1728	3516 } else if (!strncmp(s, "<head>", 6)) {
adam@1728	3517 // <head> is present. Let's add the <script> tags immediately after it.
adam@1728	3518
adam@1729	3519 // Any freeform JavaScript to include?
adam@1729	3520 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3521 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3522 size_t lenP = lenH + 40 + len;
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) + lenP);
adam@1729	3526 start += ctx->page.start - oldPage;
adam@1729	3527 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3528 ctx->page.front += lenP;
adam@1729	3529 memcpy(start, ctx->script_header, lenH);
adam@1729	3530 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3531 memcpy(start + lenH + 31, ctx->script.start, len);
adam@1729	3532 memcpy(start + lenH + 31 + len, "</script>", 9);
adam@1729	3533 } else {
adam@1729	3534 size_t lenH = strlen(ctx->script_header);
adam@1729	3535 char start = s + 6, oldPage = ctx->page.start;
adam@1729	3536
adam@1729	3537 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenH);
adam@1729	3538 start += ctx->page.start - oldPage;
adam@1729	3539 memmove(start + lenH, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3540 ctx->page.front += lenH;
adam@1729	3541 memcpy(start, ctx->script_header, lenH);
adam@1729	3542 }
adam@1728	3543 } else {
adam@1728	3544 // No <head>. At this point, add it, with <script> tags inside.
adam@1728	3545
adam@1729	3546 if (uw_buffer_used(&ctx->script) > 0) {
adam@1729	3547 size_t lenH = strlen(ctx->script_header), len = uw_buffer_used(&ctx->script);
adam@1729	3548 size_t lenP = lenH + 53 + len;
adam@1729	3549 char start = s, oldPage = ctx->page.start;
adam@1729	3550
adam@1729	3551 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3552 start += ctx->page.start - oldPage;
adam@1729	3553 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3554 ctx->page.front += lenP;
adam@1729	3555 memcpy(start, "<head>", 6);
adam@1729	3556 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3557 memcpy(start + 6 + lenH, "<script type=\"text/javascript\">", 31);
adam@1729	3558 memcpy(start + 6 + lenH + 31, ctx->script.start, len);
adam@1729	3559 memcpy(start + 6 + lenH + 31 + len, "</script></head>", 16);
adam@1729	3560 } else {
adam@1729	3561 size_t lenH = strlen(ctx->script_header);
adam@1729	3562 size_t lenP = lenH + 13;
adam@1729	3563 char start = s, oldPage = ctx->page.start;
adam@1729	3564
adam@1729	3565 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->page) + lenP);
adam@1729	3566 start += ctx->page.start - oldPage;
adam@1729	3567 memmove(start + lenP, start, uw_buffer_used(&ctx->page) - (start - ctx->page.start) + 1);
adam@1729	3568 ctx->page.front += lenP;
adam@1729	3569 memcpy(start, "<head>", 6);
adam@1729	3570 memcpy(start + 6, ctx->script_header, lenH);
adam@1729	3571 memcpy(start + 6 + lenH, "</head>", 7);
adam@1729	3572 }
adamc@916	3573 }
adamc@916	3574 }
adam@1877	3575
adam@1877	3576 if (ctx->needsResig) {
adam@1877	3577 sig = find_sig(ctx->page.start);
adam@1877	3578 if (sig) {
adam@1877	3579 char *realsig = ctx->app->cookie_sig(ctx);
adam@1877	3580
adam@1877	3581 do {
adam@1877	3582 memcpy(sig, realsig, 2*uw_hash_blocksize);
adam@1877	3583 sig = find_sig(sig);
adam@1877	3584 } while (sig);
adam@1877	3585 }
adam@1877	3586 }
adam@1938	3587
adam@1938	3588 return 0;
adamc@671	3589 }
adamc@671	3590
adamc@683	3591
adamc@1113	3592 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3593
adam@2001	3594 int uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3595 uw_callback_with_retry free) {
adamc@771	3596 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3597 if (ctx->used_transactionals+1 > uw_transactionals_max)
adam@2001	3598 // Exceeded limit on number of transactionals.
adam@2001	3599 return -1;
adamc@1084	3600 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3601 ++ctx->n_transactionals;
adamc@771	3602 }
adamc@771	3603
adamc@771	3604 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3605 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3606 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3607 ctx->transactionals[ctx->used_transactionals++].free = free;
adam@2001	3608
adam@2001	3609 return 0;
adamc@771	3610 }
adamc@771	3611
adamc@683	3612
adamc@683	3613 // "Garbage collection"
adamc@683	3614
adamc@1121	3615 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3616 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3617
adamc@1121	3618 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3619 int r = setjmp(ctx->jmp_buf);
adamc@683	3620
adamc@1121	3621 if (r == 0)
adamc@1121	3622 uw_do_expunge(ctx, cli, data);
adamc@1121	3623 else
adamc@1121	3624 ctx->app->db_rollback(ctx);
adamc@1121	3625
adamc@1121	3626 uw_post_expunge(ctx, data);
adamc@683	3627
adamc@683	3628 return r;
adamc@683	3629 }
adamc@683	3630
adamc@683	3631 void uw_prune_clients(uw_context ctx) {
adamc@683	3632 client c, next, *prev = NULL;
adamc@683	3633 time_t cutoff;
adamc@683	3634
adamc@1094	3635 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3636
adamc@683	3637 pthread_mutex_lock(&clients_mutex);
adam@1707	3638 pruning_thread = pthread_self();
adam@1707	3639 pruning_thread_initialized = 1;
adamc@683	3640
adamc@683	3641 for (c = clients_used; c; c = next) {
adamc@683	3642 next = c->next;
adamc@683	3643 pthread_mutex_lock(&c->lock);
adamc@685	3644 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3645 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3646 if (prev)
adamc@683	3647 prev->next = next;
adamc@683	3648 else
adamc@683	3649 clients_used = next;
adamc@683	3650 while (fk == UNLIMITED_RETRY) {
adam@1941	3651 uw_reset(ctx);
adamc@1121	3652 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3653 if (fk == UNLIMITED_RETRY)
adamc@684	3654 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3655 }
adamc@684	3656 if (fk == SUCCESS)
adamc@684	3657 free_client(c);
adamc@1121	3658 else
adamc@856	3659 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3660 }
adamc@683	3661 else
adamc@683	3662 prev = c;
adamc@683	3663 pthread_mutex_unlock(&c->lock);
adamc@683	3664 }
adamc@683	3665
adamc@683	3666 pthread_mutex_unlock(&clients_mutex);
adamc@683	3667 }
adamc@687	3668
adamc@687	3669 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3670 int r = setjmp(ctx->jmp_buf);
adamc@687	3671
adamc@687	3672 if (r == 0) {
adam@1936	3673 uw_ensure_transaction(ctx);
adamc@1094	3674 ctx->app->initializer(ctx);
adamc@1094	3675 if (ctx->app->db_commit(ctx))
adamc@687	3676 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3677 }
adamc@687	3678
adamc@687	3679 return r;
adamc@687	3680 }
adamc@717	3681
adamc@1065	3682 static int url_bad(uw_Basis_string s) {
adamc@1065	3683 for (; *s; ++s)
adamc@1153	3684 if (!isgraph((int)*s))
adamc@1065	3685 return 1;
adamc@1065	3686
adamc@1065	3687 return 0;
adamc@1065	3688 }
adamc@1065	3689
adamc@717	3690 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3691 if (url_bad(s))
adamc@1065	3692 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3693 if (ctx->app->check_url(s))
adamc@770	3694 return s;
adamc@770	3695 else
adamc@770	3696 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3697 }
adamc@734	3698
adamc@770	3699 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3700 if (url_bad(s))
adamc@1065	3701 return NULL;
adamc@1094	3702 if (ctx->app->check_url(s))
adamc@770	3703 return s;
adamc@770	3704 else
adamc@770	3705 return NULL;
adamc@770	3706 }
adamc@770	3707
adam@1465	3708 static int mime_format(const char *s) {
adamc@770	3709 for (; *s; ++s)
grrwlf@2024	3710 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.' && *s != '+')
adamc@770	3711 return 0;
adamc@770	3712
adamc@770	3713 return 1;
adamc@770	3714 }
adamc@770	3715
adamc@741	3716 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3717 if (!mime_format(s))
adamc@770	3718 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3719
adamc@1094	3720 if (ctx->app->check_mime(s))
adamc@770	3721 return s;
adamc@770	3722 else
adamc@770	3723 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3724 }
adamc@770	3725
adamc@770	3726 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3727 if (!mime_format(s))
adamc@770	3728 return NULL;
adamc@770	3729
adamc@1094	3730 if (ctx->app->check_mime(s))
adamc@770	3731 return s;
adamc@770	3732 else
adamc@770	3733 return NULL;
adamc@741	3734 }
adamc@741	3735
adam@1465	3736 uw_Basis_string uw_Basis_blessRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3737 if (!mime_format(s))
adam@1465	3738 uw_error(ctx, FATAL, "Request header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3739
adam@1465	3740 if (ctx->app->check_requestHeader(s))
adam@1465	3741 return s;
adam@1465	3742 else
adam@1465	3743 uw_error(ctx, FATAL, "Disallowed request header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3744 }
adam@1465	3745
adam@1465	3746 uw_Basis_string uw_Basis_checkRequestHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3747 if (!mime_format(s))
adam@1465	3748 return NULL;
adam@1465	3749
adam@1465	3750 if (ctx->app->check_requestHeader(s))
adam@1465	3751 return s;
adam@1465	3752 else
adam@1465	3753 return NULL;
adam@1465	3754 }
adam@1465	3755
adam@1465	3756 uw_Basis_string uw_Basis_blessResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1465	3757 if (!mime_format(s))
adam@1465	3758 uw_error(ctx, FATAL, "Response header \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1465	3759
adam@1465	3760 if (ctx->app->check_responseHeader(s))
adam@1465	3761 return s;
adam@1465	3762 else
adam@1465	3763 uw_error(ctx, FATAL, "Disallowed response header %s", uw_Basis_htmlifyString(ctx, s));
adam@1465	3764 }
adam@1465	3765
adam@1799	3766 static int envVar_format(const char *s) {
adam@1799	3767 for (; *s; ++s)
adam@1799	3768 if (!isalnum((int)s) && s != '_' && *s != '.')
adam@1799	3769 return 0;
adam@1799	3770
adam@1799	3771 return 1;
adam@1799	3772 }
adam@1799	3773
adam@1465	3774 uw_Basis_string uw_Basis_checkResponseHeader(uw_context ctx, uw_Basis_string s) {
adam@1799	3775 if (!envVar_format(s))
adam@1465	3776 return NULL;
adam@1465	3777
adam@1465	3778 if (ctx->app->check_responseHeader(s))
adam@1465	3779 return s;
adam@1465	3780 else
adam@1465	3781 return NULL;
adam@1465	3782 }
adam@1465	3783
adam@1799	3784 uw_Basis_string uw_Basis_blessEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3785 if (!envVar_format(s))
adam@1799	3786 uw_error(ctx, FATAL, "Environment variable \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adam@1799	3787
adam@1799	3788 if (ctx->app->check_envVar(s))
adam@1799	3789 return s;
adam@1799	3790 else
adam@1799	3791 uw_error(ctx, FATAL, "Disallowed environment variable %s", uw_Basis_htmlifyString(ctx, s));
adam@1799	3792 }
adam@1799	3793
adam@1799	3794 uw_Basis_string uw_Basis_checkEnvVar(uw_context ctx, uw_Basis_string s) {
adam@1799	3795 if (!mime_format(s))
adam@1799	3796 return NULL;
adam@1799	3797
adam@1799	3798 if (ctx->app->check_envVar(s))
adam@1799	3799 return s;
adam@1799	3800 else
adam@1799	3801 return NULL;
adam@1799	3802 }
adam@1799	3803
adam@1465	3804 uw_Basis_string uw_Basis_getHeader(uw_context ctx, uw_Basis_string name) {
adam@1465	3805 return uw_Basis_requestHeader(ctx, name);
adam@1465	3806 }
adam@1465	3807
adam@1465	3808 static int mime_value_format(const char *s) {
adam@1465	3809 for (; *s; ++s)
adam@1465	3810 if (s == '\r' \|\| s == '\n')
adam@1465	3811 return 0;
adam@1465	3812
adam@1465	3813 return 1;
adam@1465	3814 }
adam@1465	3815
adam@1465	3816 uw_unit uw_Basis_setHeader(uw_context ctx, uw_Basis_string name, uw_Basis_string value) {
adam@1465	3817 if (!mime_value_format(value))
adam@1465	3818 uw_error(ctx, FATAL, "Invalid value for HTTP response header");
adam@1465	3819
adam@1465	3820 uw_write_header(ctx, name);
adam@1465	3821 uw_write_header(ctx, ": ");
adam@1465	3822 uw_write_header(ctx, value);
adam@1465	3823 uw_write_header(ctx, "\r\n");
adam@1465	3824
adam@1465	3825 return uw_unit_v;
adam@1465	3826 }
adam@1465	3827
adam@1799	3828 uw_Basis_string uw_Basis_getenv(uw_context ctx, uw_Basis_string name) {
adam@1993	3829 if (ctx->get_env)
adam@1993	3830 return ctx->get_env(ctx->get_env_data, name);
adam@1993	3831 else
adam@1994	3832 return getenv(name);
adam@1799	3833 }
adam@1799	3834
adamc@734	3835 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3836 return s ? s : "";
adamc@734	3837 }
adamc@734	3838
adamc@734	3839 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3840 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3841 int i;
phurst@1981	3842
adamc@734	3843 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3844 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3845
adamc@734	3846 return r;
adamc@734	3847 }
adamc@734	3848
adam@1512	3849 /* This bit of crafty code is intended to prevent GCC from performing
adam@1512	3850 * optimizations that would enable timing attacks. See:
adam@1512	3851 * http://www.impredicative.com/pipermail/ur/2011-July/000659.html
adam@1512	3852 */
adam@1512	3853 int uw_streq(uw_Basis_string s1, uw_Basis_string s2) {
adam@1512	3854 int i, x = 0, len1 = strlen(s1);
adam@1512	3855
adam@1512	3856 if (len1 != strlen(s2)) return 0;
adam@1512	3857
adam@1512	3858 for (i = 0; i < len1; ++i) {
adam@1512	3859 __asm__ __volatile__ ("");
adam@1512	3860 x \|= s1[i] ^ s2[i];
adam@1512	3861 }
adam@1512	3862
adam@1512	3863 return x == 0;
adam@1512	3864 }
adam@1512	3865
adamc@734	3866 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adam@1877	3867 ctx->usedSig = 1;
adamc@1094	3868 return ctx->app->cookie_sig(ctx);
adamc@734	3869 }
adamc@737	3870
adamc@737	3871 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3872 return f.name;
adamc@737	3873 }
adamc@737	3874
adamc@740	3875 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3876 return f.type;
adamc@740	3877 }
adamc@740	3878
adamc@745	3879 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3880 return b.size;
adamc@745	3881 }
adamc@745	3882
adamc@1119	3883 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3884 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3885
adamc@1119	3886 return b;
adamc@1119	3887 }
adamc@1119	3888
adamc@737	3889 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3890 return f.data;
adamc@737	3891 }
adamc@741	3892
adam@1347	3893 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3894 return pb.type;
adam@1347	3895 }
adam@1347	3896
adam@1347	3897 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3898 return pb.data;
adam@1347	3899 }
adam@1347	3900
adam@1471	3901 static char *old_headers(uw_context ctx) {
adam@1471	3902 if (uw_buffer_used(&ctx->outHeaders) == 0)
adam@1471	3903 return NULL;
adam@1471	3904 else {
adam@1471	3905 char *s = strchr(ctx->outHeaders.start, '\n');
adam@1471	3906
adam@1471	3907 if (s == NULL \|\| strncasecmp(s+1, "Content-type: ", 14))
adam@1471	3908 return NULL;
adam@1471	3909 else {
adam@1471	3910 s = strchr(s+15, '\n');
adam@1471	3911 if (s == NULL)
adam@1471	3912 return NULL;
adam@1471	3913 else
adam@1471	3914 return uw_strdup(ctx, s+1);
adam@1471	3915 }
adam@1471	3916 }
adam@1471	3917 }
adam@1471	3918
adamc@741	3919 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3920 cleanup *cl;
adamc@741	3921 int len;
adam@1471	3922 char *oldh;
adamc@741	3923
adam@1451	3924 if (!ctx->allowed_to_return_indirectly)
adam@1451	3925 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1451	3926
adamc@1065	3927 ctx->returning_indirectly = 1;
adam@1471	3928 oldh = old_headers(ctx);
adam@1369	3929 uw_buffer_reset(&ctx->outHeaders);
adam@1369	3930 uw_buffer_reset(&ctx->page);
adamc@741	3931
adamc@856	3932 uw_write_header(ctx, on_success);
adamc@856	3933 uw_write_header(ctx, "Content-Type: ");
adamc@741	3934 uw_write_header(ctx, mimeType);
adam@1934	3935 uw_write_header(ctx, "\r\nContent-length: ");
adam@1369	3936 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3937 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3938 ctx->outHeaders.front += len;
adamc@1066	3939 uw_write_header(ctx, "\r\n");
adam@1471	3940 if (oldh) uw_write_header(ctx, oldh);
adamc@741	3941
adam@1369	3942 ctx_uw_buffer_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3943
adamc@741	3944 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3945 cl->func(cl->arg);
adamc@741	3946
adamc@741	3947 ctx->cleanup_front = ctx->cleanup;
adamc@741	3948
adamc@1065	3949 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3950 }
adamc@1065	3951
adam@2046	3952 void uw_replace_page(uw_context ctx, const char *data, size_t size) {
adam@2046	3953 uw_buffer_reset(&ctx->page);
adam@2046	3954 ctx_uw_buffer_append(ctx, "page", &ctx->page, data, size);
adam@2046	3955 }
adam@2046	3956
adam@1932	3957 __attribute__((noreturn)) void uw_return_blob_from_page(uw_context ctx, uw_Basis_string mimeType) {
adam@1932	3958 cleanup *cl;
adam@1932	3959 int len;
adam@1932	3960 char *oldh;
adam@1932	3961
adam@1932	3962 if (!ctx->allowed_to_return_indirectly)
adam@1932	3963 uw_error(ctx, FATAL, "Tried to return a blob from an RPC");
adam@1932	3964
adam@1932	3965 ctx->returning_indirectly = 1;
adam@1932	3966 oldh = old_headers(ctx);
adam@1932	3967 uw_buffer_reset(&ctx->outHeaders);
adam@1932	3968
adam@1932	3969 uw_write_header(ctx, on_success);
adam@1932	3970 uw_write_header(ctx, "Content-Type: ");
adam@1932	3971 uw_write_header(ctx, mimeType);
adam@1934	3972 uw_write_header(ctx, "\r\nContent-length: ");
adam@1932	3973 ctx_uw_buffer_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adam@1932	3974 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)uw_buffer_used(&ctx->page), &len);
adam@1932	3975 ctx->outHeaders.front += len;
adam@1932	3976 uw_write_header(ctx, "\r\n");
adam@1932	3977 if (oldh) uw_write_header(ctx, oldh);
adam@1932	3978
adam@1932	3979 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adam@1932	3980 cl->func(cl->arg);
adam@1932	3981
adam@1932	3982 ctx->cleanup_front = ctx->cleanup;
adam@1932	3983
adam@1932	3984 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adam@1932	3985 }
adam@1932	3986
adamc@1065	3987 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3988 cleanup *cl;
adamc@1066	3989 char *s;
adam@1471	3990 char *oldh;
adamc@1065	3991
adam@1451	3992 if (!ctx->allowed_to_return_indirectly)
adam@1451	3993 uw_error(ctx, FATAL, "Tried to redirect from an RPC");
adam@1451	3994
adamc@1065	3995 ctx->returning_indirectly = 1;
adam@1471	3996 oldh = old_headers(ctx);
adam@1369	3997 uw_buffer_reset(&ctx->page);
adam@1369	3998 ctx_uw_buffer_check(ctx, "page", &ctx->page, uw_buffer_used(&ctx->outHeaders)+1);
adam@1369	3999 memcpy(ctx->page.start, ctx->outHeaders.start, uw_buffer_used(&ctx->outHeaders));
adam@1369	4000 ctx->page.start[uw_buffer_used(&ctx->outHeaders)] = 0;
adam@1369	4001 uw_buffer_reset(&ctx->outHeaders);
adamc@1065	4002
adam@1409	4003 if (on_success[0])
adam@1409	4004 uw_write_header(ctx, on_redirect);
adam@1409	4005 else
adam@1409	4006 uw_write_header(ctx, "Status: 303 See Other\r\n");
adam@1409	4007 s = on_success[0] ? strchr(ctx->page.start, '\n') : ctx->page.start;
adamc@1066	4008 if (s) {
adamc@1066	4009 char *s2;
adam@1409	4010 if (s[0] == '\n') ++s;
adam@1409	4011 for (; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	4012 *s2 = 0;
adamc@1066	4013 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	4014 uw_write_header(ctx, s);
adamc@1066	4015 uw_write_header(ctx, "\n");
adamc@1066	4016 }
adamc@1066	4017 }
adamc@1066	4018 }
adamc@1066	4019
adamc@1065	4020 uw_write_header(ctx, "Location: ");
adamc@1065	4021 uw_write_header(ctx, url);
adamc@1065	4022 uw_write_header(ctx, "\r\n\r\n");
adam@1471	4023 if (oldh) uw_write_header(ctx, oldh);
adamc@1065	4024
adamc@1065	4025 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	4026 cl->func(cl->arg);
adamc@1065	4027
adamc@1065	4028 ctx->cleanup_front = ctx->cleanup;
adamc@1065	4029
adamc@1065	4030 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	4031 }
adamc@874	4032
adamc@874	4033 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adam@1467	4034 uw_Basis_string ret = uw_malloc(ctx, strlen(s) + 1), r = ret;
adamc@874	4035
adamc@874	4036 for (; *s; ++s) {
adamc@874	4037 if (s[0] == '\'') {
adamc@874	4038 *r++ = '\'';
adamc@874	4039 for (++s; *s; ++s) {
adamc@874	4040 if (s[0] == '\'') {
adamc@874	4041 *r++ = '\'';
adamc@874	4042 break;
adamc@874	4043 } else if (s[0] == '\\') {
adam@1467	4044 *r++ = '\\';
adam@1467	4045 *r++ = s[1];
adam@1467	4046 ++s;
adamc@874	4047 } else
adamc@874	4048 *r++ = s[0];
adamc@874	4049 }
adamc@874	4050 if (*s == 0) break;
adam@1467	4051 } else if (s[0] == 'T' && s[1] == '_' && s[2] == 'T' && s[3] == '.')
adam@1467	4052 s += 3;
adamc@874	4053 else
adamc@874	4054 *r++ = s[0];
adamc@874	4055 }
adamc@874	4056
adam@1467	4057 *r = 0;
adam@1467	4058 return ret;
adamc@874	4059 }
adamc@874	4060
adamc@922	4061 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	4062 va_list ap;
adamc@922	4063 size_t len = 1;
adamc@922	4064 char s, r, *s2;
phurst@1981	4065
adamc@922	4066 va_start(ap, ctx);
adamc@922	4067 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4068 len += strlen(s);
adamc@922	4069 va_end(ap);
adamc@922	4070
adamc@922	4071 r = uw_malloc(ctx, len);
adamc@922	4072 va_start(ap, ctx);
adamc@922	4073 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	4074 while (*s)
adamc@922	4075 s2++ = s++;
adamc@922	4076 va_end(ap);
adamc@922	4077 *s2 = 0;
adamc@922	4078
adamc@922	4079 return r;
adamc@922	4080 }
adamc@1006	4081
adam@1365	4082 const uw_Basis_time uw_Basis_minTime = {};
adamc@1050	4083
adamc@1006	4084 uw_Basis_time uw_Basis_now(uw_context ctx) {
adam@1365	4085 uw_Basis_time r = { time(NULL) };
adam@1365	4086 return r;
adamc@1006	4087 }
adamc@1061	4088
adam@1369	4089 uw_Basis_time uw_Basis_addSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adam@1369	4090 tm.seconds += n;
adam@1365	4091 return tm;
adamc@1138	4092 }
adamc@1138	4093
adam@1514	4094 uw_Basis_int uw_Basis_diffInSeconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1514	4095 return difftime(tm2.seconds, tm1.seconds);
adam@1514	4096 }
adam@1514	4097
adam@1685	4098 uw_Basis_int uw_Basis_toMilliseconds(uw_context ctx, uw_Basis_time tm) {
adam@1685	4099 return tm.seconds * 1000 + tm.microseconds / 1000;
adam@1685	4100 }
adam@1685	4101
adam@2187	4102 uw_Basis_time uw_Basis_fromMilliseconds(uw_context ctx, uw_Basis_int n) {
adam@2187	4103 uw_Basis_time tm = {n / 1000, n % 1000 * 1000};
adam@2187	4104 return tm;
adam@2187	4105 }
adam@2187	4106
adam@1685	4107 uw_Basis_int uw_Basis_diffInMilliseconds(uw_context ctx, uw_Basis_time tm1, uw_Basis_time tm2) {
adam@1685	4108 return uw_Basis_toMilliseconds(ctx, tm2) - uw_Basis_toMilliseconds(ctx, tm1);
adam@1685	4109 }
adam@1685	4110
adam@1514	4111 uw_Basis_int uw_Basis_toSeconds(uw_context ctx, uw_Basis_time tm) {
adam@1514	4112 return tm.seconds;
adam@1514	4113 }
adam@1514	4114
phurst@1971	4115 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	4116 struct tm tm = { .tm_year = year - 1900, .tm_mon = month, .tm_mday = day,
adam@2015	4117 .tm_hour = hour, .tm_min = minute, .tm_sec = second,
adam@2015	4118 .tm_isdst = -1 };
phurst@1984	4119 uw_Basis_time r = { timelocal(&tm) };
phurst@1971	4120 return r;
phurst@1971	4121 }
phurst@1971	4122
phurst@1971	4123 uw_Basis_int uw_Basis_datetimeYear(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_year + 1900;
phurst@1971	4127 }
phurst@1971	4128
phurst@1971	4129 uw_Basis_int uw_Basis_datetimeMonth(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_mon;
phurst@1971	4133 }
phurst@1971	4134
phurst@1971	4135 uw_Basis_int uw_Basis_datetimeDay(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_mday;
phurst@1971	4139 }
phurst@1971	4140
phurst@1971	4141 uw_Basis_int uw_Basis_datetimeHour(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_hour;
phurst@1971	4145 }
phurst@1971	4146
phurst@1971	4147 uw_Basis_int uw_Basis_datetimeMinute(uw_context ctx, uw_Basis_time time) {
phurst@1971	4148 struct tm tm;
phurst@1982	4149 localtime_r(&time.seconds, &tm);
phurst@1971	4150 return tm.tm_min;
phurst@1971	4151 }
phurst@1971	4152
phurst@1971	4153 uw_Basis_int uw_Basis_datetimeSecond(uw_context ctx, uw_Basis_time time) {
phurst@1971	4154 struct tm tm;
phurst@1982	4155 localtime_r(&time.seconds, &tm);
phurst@1971	4156 return tm.tm_sec;
phurst@1971	4157 }
phurst@1971	4158
phurst@1973	4159 uw_Basis_int uw_Basis_datetimeDayOfWeek(uw_context ctx, uw_Basis_time time) {
phurst@1973	4160 struct tm tm;
phurst@1982	4161 localtime_r(&time.seconds, &tm);
phurst@1973	4162 return tm.tm_wday;
phurst@1973	4163 }
phurst@1971	4164
phurst@1971	4165
adamc@1061	4166 void uw_get_global(uw_context ctx, char name) {
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@1061	4171 return ctx->globals[i].data;
adamc@1061	4172
adamc@1061	4173 return NULL;
adamc@1061	4174 }
adamc@1061	4175
adamc@1113	4176 size_t uw_globals_max = SIZE_MAX;
adamc@1113	4177
adamc@1061	4178 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	4179 int i;
adamc@1061	4180
adamc@1061	4181 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	4182 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	4183 if (ctx->globals[i].free)
adamc@1061	4184 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	4185 ctx->globals[i].data = data;
adamc@1061	4186 ctx->globals[i].free = free;
adamc@1061	4187 return;
adamc@1061	4188 }
adamc@1089	4189
adamc@1113	4190 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	4191 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	4192
adamc@1061	4193 ++ctx->n_globals;
adamc@1061	4194 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	4195 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	4196 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	4197 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	4198 }
adamc@1061	4199
adamc@1061	4200 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	4201 return !!isalnum((int)c);
adamc@1061	4202 }
adamc@1061	4203
adamc@1061	4204 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	4205 return !!isalpha((int)c);
adamc@1061	4206 }
adamc@1061	4207
adamc@1061	4208 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	4209 return !!isblank((int)c);
adamc@1061	4210 }
adamc@1061	4211
adamc@1061	4212 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	4213 return !!iscntrl((int)c);
adamc@1061	4214 }
adamc@1061	4215
adamc@1061	4216 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4217 return !!isdigit((int)c);
adamc@1061	4218 }
adamc@1061	4219
adamc@1061	4220 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	4221 return !!isgraph((int)c);
adamc@1061	4222 }
adamc@1061	4223
adamc@1061	4224 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4225 return !!islower((int)c);
adamc@1061	4226 }
adamc@1061	4227
adamc@1061	4228 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	4229 return !!isprint((int)c);
adamc@1061	4230 }
adamc@1061	4231
adamc@1061	4232 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	4233 return !!ispunct((int)c);
adamc@1061	4234 }
adamc@1061	4235
adamc@1061	4236 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	4237 return !!isspace((int)c);
adamc@1061	4238 }
adamc@1063	4239
adamc@1061	4240 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4241 return !!isupper((int)c);
adamc@1061	4242 }
adamc@1061	4243
adamc@1061	4244 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	4245 return !!isxdigit((int)c);
adamc@1061	4246 }
adamc@1061	4247
adamc@1061	4248 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	4249 return tolower((int)c);
adamc@1061	4250 }
adamc@1061	4251
adamc@1061	4252 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	4253 return toupper((int)c);
adamc@1061	4254 }
adamc@1066	4255
adamc@1128	4256 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	4257 return (unsigned char)c;
adamc@1128	4258 }
adamc@1128	4259
adamc@1128	4260 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	4261 return n;
adamc@1128	4262 }
adamc@1128	4263
adamc@1066	4264 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	4265 return ctx->current_url;
adamc@1066	4266 }
adamc@1066	4267
adamc@1066	4268 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	4269 ctx->current_url = s;
adamc@1066	4270 }
adamc@1114	4271
adamc@1114	4272 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	4273 ctx->deadline = n;
adamc@1114	4274 }
adamc@1114	4275
adamc@1114	4276 void uw_check_deadline(uw_context ctx) {
adamc@1114	4277 if (uw_time > ctx->deadline)
adamc@1114	4278 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	4279 }
adamc@1115	4280
adamc@1115	4281 size_t uw_database_max = SIZE_MAX;
adamc@1120	4282
adam@1389	4283 uw_Basis_int uw_Basis_naughtyDebug(uw_context ctx, uw_Basis_string s) {
adam@2143	4284 if (ctx->loggers->log_debug)
adam@2143	4285 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@2143	4286 else
adam@2143	4287 fprintf(stderr, "%s\n", s);
adam@1389	4288 return 0;
adam@1389	4289 }
adam@1389	4290
adamc@1120	4291 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
grrwlf@1997	4292 if (ctx->loggers->log_debug)
grrwlf@1997	4293 ctx->loggers->log_debug(ctx->loggers->logger_data, "%s\n", s);
adam@1334	4294 else
adam@1334	4295 fprintf(stderr, "%s\n", s);
adamc@1120	4296 return uw_unit_v;
adamc@1120	4297 }
adamc@1250	4298
adamc@1250	4299 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adam@2104	4300 int r = my_rand();
adam@2104	4301
adam@2104	4302 if (r >= 0)
adam@2104	4303 return r;
adam@1486	4304 else
adam@1486	4305 uw_error(ctx, FATAL, "Random number generation failed");
adamc@1250	4306 }
adam@1347	4307
adam@1347	4308 void uw_noPostBody(uw_context ctx) {
adam@1347	4309 ctx->hasPostBody = 0;
adam@1347	4310 }
adam@1347	4311
adam@1347	4312 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	4313 ctx->hasPostBody = 1;
adam@1347	4314 ctx->postBody = pb;
adam@1347	4315 }
adam@1347	4316
adam@1347	4317 int uw_hasPostBody(uw_context ctx) {
adam@1347	4318 return ctx->hasPostBody;
adam@1347	4319 }
adam@1347	4320
adam@1386	4321 void uw_isPost(uw_context ctx) {
adam@1386	4322 ctx->isPost = 1;
adam@1386	4323 }
adam@1386	4324
adam@1386	4325 uw_Basis_bool uw_Basis_currentUrlHasPost(uw_context ctx) {
adam@1386	4326 return ctx->isPost;
adam@1386	4327 }
adam@1386	4328
adam@1485	4329 uw_Basis_bool uw_Basis_currentUrlHasQueryString(uw_context ctx) {
adam@1485	4330 return ctx->queryString != NULL && ctx->queryString[0] != 0;
adam@1485	4331 }
adam@1485	4332
adam@1370	4333 void uw_setQueryString(uw_context ctx, uw_Basis_string s) {
adam@1370	4334 ctx->queryString = s;
adam@1370	4335 }
adam@1370	4336
adam@1370	4337 uw_Basis_string uw_queryString(uw_context ctx) {
adam@1370	4338 return ctx->queryString;
adam@1370	4339 }
adam@1370	4340
adam@1347	4341 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	4342 if (ctx->hasPostBody)
adam@1347	4343 return ctx->postBody;
adam@1347	4344 else
adam@1347	4345 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	4346 }
adam@1349	4347
adam@1349	4348 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	4349 int r = setjmp(ctx->jmp_buf);
adam@1349	4350
adam@1349	4351 if (r == 0) {
adam@1936	4352 uw_ensure_transaction(ctx);
adam@1418	4353
adam@1349	4354 callback(ctx);
adam@1349	4355 }
adam@1349	4356
adam@1349	4357 return r;
adam@1349	4358 }
adam@1360	4359
adam@1360	4360 uw_Basis_string uw_Basis_crypt(uw_context ctx, uw_Basis_string key, uw_Basis_string salt) {
adam@1397	4361 char buf[14];
adam@1397	4362 return uw_strdup(ctx, DES_fcrypt(key, salt, buf));
adam@1360	4363 }
adam@1365	4364
adam@1365	4365 uw_Basis_bool uw_Basis_eq_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4366 return !!(t1.seconds == t2.seconds && t1.microseconds == t2.microseconds);
adam@1365	4367 }
adam@1365	4368
adam@1365	4369 uw_Basis_bool uw_Basis_lt_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@2034	4370 return !!(t1.seconds < t2.seconds \|\| (t1.seconds == t2.seconds && t1.microseconds < t2.microseconds));
adam@1365	4371 }
adam@1365	4372
adam@1365	4373 uw_Basis_bool uw_Basis_le_time(uw_context ctx, uw_Basis_time t1, uw_Basis_time t2) {
adam@1365	4374 return !!(uw_Basis_eq_time(ctx, t1, t2) \|\| uw_Basis_lt_time(ctx, t1, t2));
adam@1365	4375 }
adam@1365	4376
adam@1372	4377 uw_Basis_time *uw_Basis_readUtc(uw_context ctx, uw_Basis_string s) {
adam@1374	4378 struct tm stm = {};
adam@1375	4379 char *end = strchr(s, 0);
adam@1449	4380 stm.tm_isdst = -1;
adam@1375	4381
adam@1632	4382 if (strptime(s, TIME_FMT_PG, &stm) == end \|\| strptime(s, TIME_FMT, &stm) == end \|\| strptime(s, TIME_FMT_JS, &stm) == end) {
adam@1373	4383 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1375	4384
kkallio@1448	4385 r->seconds = timegm(&stm);
adam@1373	4386 r->microseconds = 0;
adam@1373	4387
adam@1373	4388 return r;
adam@1374	4389 }
adam@1374	4390 else
adam@1373	4391 return NULL;
adam@1372	4392 }
adam@1407	4393
adam@1407	4394 failure_kind uw_begin_onError(uw_context ctx, char *msg) {
adam@1407	4395 int r = setjmp(ctx->jmp_buf);
adam@1407	4396
adam@1407	4397 if (ctx->app->on_error) {
adam@1407	4398 if (r == 0) {
adam@1936	4399 uw_ensure_transaction(ctx);
adam@1407	4400
adam@1409	4401 uw_buffer_reset(&ctx->outHeaders);
adam@1409	4402 if (on_success[0])
adam@1409	4403 uw_write_header(ctx, "HTTP/1.1 ");
adam@1409	4404 else
adam@1409	4405 uw_write_header(ctx, "Status: ");
adam@1409	4406 uw_write_header(ctx, "500 Internal Server Error\r\n");
adam@1919	4407 uw_write_header(ctx, "Content-type: text/html\r\n");
adam@1956	4408 uw_write(ctx, ctx->app->is_html5 ? uw_begin_html5 : uw_begin_xhtml);
adam@1407	4409 ctx->app->on_error(ctx, msg);
adam@1407	4410 uw_write(ctx, "</html>");
adam@1407	4411 }
adam@1407	4412
adam@1407	4413 return r;
adam@1407	4414 } else
adam@1407	4415 uw_error(ctx, FATAL, "Tried to run nonexistent onError handler");
adam@1407	4416 }
adam@1451	4417
adam@1451	4418 void uw_mayReturnIndirectly(uw_context ctx) {
adam@1451	4419 ctx->allowed_to_return_indirectly = 1;
adam@1451	4420 }
adam@1483	4421
adam@1556	4422 uw_Basis_string uw_Basis_fresh(uw_context ctx) {
adam@1703	4423 int len;
adam@1703	4424 char *r;
adam@1703	4425
adam@1703	4426 uw_check_heap(ctx, 2+INTS_MAX);
adam@1703	4427 r = ctx->heap.front;
adam@1703	4428 sprintf(r, "uw%u%n", ctx->nextId++, &len);
adam@1703	4429 ctx->heap.front += len+1;
adam@1703	4430 return r;
adam@1556	4431 }
adam@1571	4432
adam@1571	4433 uw_Basis_float uw_Basis_floatFromInt(uw_context ctx, uw_Basis_int n) {
adam@1571	4434 return n;
adam@1571	4435 }
adam@1571	4436
adam@1571	4437 uw_Basis_int uw_Basis_ceil(uw_context ctx, uw_Basis_float n) {
adam@1571	4438 return ceil(n);
adam@1571	4439 }
adam@1571	4440
adam@1571	4441 uw_Basis_int uw_Basis_trunc(uw_context ctx, uw_Basis_float n) {
adam@1571	4442 return trunc(n);
adam@1571	4443 }
adam@1571	4444
adam@1571	4445 uw_Basis_int uw_Basis_round(uw_context ctx, uw_Basis_float n) {
adam@1571	4446 return round(n);
adam@1571	4447 }
adam@1755	4448
adam@1755	4449 uw_Basis_string uw_Basis_atom(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 uw_error(ctx, FATAL, "Disallowed character in CSS atom");
adam@1755	4456 }
adam@1755	4457
adam@1755	4458 return s;
adam@1755	4459 }
adam@1755	4460
adam@1755	4461 uw_Basis_string uw_Basis_css_url(uw_context ctx, uw_Basis_string s) {
adam@1755	4462 char *p;
adam@1755	4463
adam@1755	4464 for (p = s; *p; ++p) {
adam@1755	4465 char c = *p;
adam@1801	4466 if (!isalnum((int)c) && c != ':' && c != '/' && c != '.' && c != '_' && c != '+'
adam@1755	4467 && c != '-' && c != '%' && c != '?' && c != '&' && c != '=' && c != '#')
adam@1755	4468 uw_error(ctx, FATAL, "Disallowed character in CSS URL");
adam@1755	4469 }
adam@1755	4470
adam@1755	4471 return s;
adam@1755	4472 }
adam@1755	4473
adam@1755	4474 uw_Basis_string uw_Basis_property(uw_context ctx, uw_Basis_string s) {
adam@1755	4475 char *p;
adam@1755	4476
adam@1755	4477 if (!*s)
adam@1755	4478 uw_error(ctx, FATAL, "Empty CSS property");
adam@1755	4479
adam@1801	4480 if (!islower((int)s[0]) && s[0] != '_')
adam@1755	4481 uw_error(ctx, FATAL, "Bad initial character in CSS property");
adam@1755	4482
adam@1755	4483 for (p = s; *p; ++p) {
adam@1755	4484 char c = *p;
adam@1801	4485 if (!islower((int)c) && !isdigit((int)c) && c != '_' && c != '-')
adam@1755	4486 uw_error(ctx, FATAL, "Disallowed character in CSS property");
adam@1755	4487 }
adam@1755	4488
adam@1755	4489 return s;
adam@1755	4490 }
adam@1787	4491
adam@1787	4492 uw_Basis_string uw_Basis_fieldName(uw_context ctx, uw_Basis_postField f) {
adam@1787	4493 return f.name;
adam@1787	4494 }
adam@1787	4495
adam@1787	4496 uw_Basis_string uw_Basis_fieldValue(uw_context ctx, uw_Basis_postField f) {
adam@1787	4497 return f.value;
adam@1787	4498 }
adam@1787	4499
adam@1787	4500 uw_Basis_string uw_Basis_remainingFields(uw_context ctx, uw_Basis_postField f) {
adam@1787	4501 return f.remaining;
adam@1787	4502 }
adam@1787	4503
adam@1787	4504 uw_Basis_postField *uw_Basis_firstFormField(uw_context ctx, uw_Basis_string s) {
adam@1788	4505 char *unurl;
adam@1787	4506 uw_Basis_postField *f;
adam@1787	4507
adam@1788	4508 if (!ctx->hasPostBody)
adam@1788	4509 uw_error(ctx, FATAL, "firstFormField called when there is no POST body");
adam@1788	4510
adam@1788	4511 if (s < ctx->postBody.data \|\| s >= ctx->postBody.data + ctx->postBody.len)
adam@1787	4512 return NULL;
adam@1787	4513
adam@1787	4514 f = uw_malloc(ctx, sizeof(uw_Basis_postField));
adam@1788	4515 unurl = s;
adam@1787	4516 f->name = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4517 s = strchr(s, 0);
adam@1788	4518 if (!s)
adam@1788	4519 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4520 ++s;
adam@1788	4521 unurl = s;
adam@1788	4522 f->value = uw_Basis_unurlifyString(ctx, &unurl);
adam@1788	4523 s = strchr(s, 0);
adam@1788	4524 if (!s)
adam@1788	4525 uw_error(ctx, FATAL, "firstFormField: Missing null terminator");
adam@1788	4526 f->remaining = s+1;
adam@1787	4527
adam@1787	4528 return f;
adam@1787	4529 }
adam@2008	4530
adam@2008	4531 uw_Basis_string uw_Basis_blessData(uw_context ctx, uw_Basis_string s) {
adam@2008	4532 char *p = s;
adam@2008	4533
adam@2008	4534 for (; *p; ++p)
adam@2008	4535 if (!isalnum(p) && p != '-' && *p != '_')
adam@2008	4536 uw_error(ctx, FATAL, "Illegal HTML5 data-* attribute: %s", s);
adam@2008	4537
adam@2008	4538 return s;
adam@2008	4539 }
adam@2073	4540
adam@2073	4541 int uw_remoteSock(uw_context ctx) {
adam@2073	4542 return ctx->remoteSock;
adam@2073	4543 }
adam@2073	4544
adam@2073	4545 void uw_set_remoteSock(uw_context ctx, int sock) {
adam@2073	4546 ctx->remoteSock = sock;
adam@2073	4547 }
ziv@2234	4548
ziv@2234	4549
ziv@2234	4550 // Sqlcache
ziv@2234	4551
ziv@2284	4552 typedef struct uw_Sqlcache_Entry {
ziv@2284	4553 char *key;
ziv@2284	4554 uw_Sqlcache_Value *value;
ziv@2284	4555 unsigned long timeInvalid;
ziv@2284	4556 UT_hash_handle hh;
ziv@2284	4557 } uw_Sqlcache_Entry;
ziv@2284	4558
ziv@2279	4559 void uw_Sqlcache_freeValue(uw_Sqlcache_Value *value) {
ziv@2234	4560 if (value) {
ziv@2234	4561 free(value->result);
ziv@2234	4562 free(value->output);
ziv@2234	4563 free(value);
ziv@2234	4564 }
ziv@2234	4565 }
ziv@2234	4566
ziv@2279	4567 void uw_Sqlcache_freeEntry(uw_Sqlcache_Entry* entry) {
ziv@2279	4568 if (entry) {
ziv@2279	4569 free(entry->key);
ziv@2279	4570 uw_Sqlcache_freeValue(entry->value);
ziv@2279	4571 free(entry);
ziv@2279	4572 }
ziv@2279	4573 }
ziv@2279	4574
ziv@2279	4575 // TODO: pick a number.
ziv@2279	4576 unsigned int uw_Sqlcache_maxSize = 1234567890;
ziv@2279	4577
ziv@2279	4578 void uw_Sqlcache_delete(uw_Sqlcache_Cache cache, uw_Sqlcache_Entry entry) {
ziv@2279	4579 HASH_DEL(cache->table, entry);
ziv@2279	4580 uw_Sqlcache_freeEntry(entry);
ziv@2279	4581 }
ziv@2279	4582
ziv@2279	4583 uw_Sqlcache_Entry uw_Sqlcache_find(uw_Sqlcache_Cache cache, char *key, size_t len, int bump) {
ziv@2279	4584 uw_Sqlcache_Entry *entry = NULL;
ziv@2279	4585 HASH_FIND(hh, cache->table, key, len, entry);
ziv@2279	4586 if (entry && bump) {
ziv@2279	4587 // Bump for LRU purposes.
ziv@2279	4588 HASH_DEL(cache->table, entry);
ziv@2279	4589 // Important that we use [entry->key], because [key] might be ephemeral.
ziv@2279	4590 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279	4591 }
ziv@2279	4592 return entry;
ziv@2279	4593 }
ziv@2279	4594
ziv@2279	4595 void uw_Sqlcache_add(uw_Sqlcache_Cache cache, uw_Sqlcache_Entry entry, size_t len) {
ziv@2279	4596 HASH_ADD_KEYPTR(hh, cache->table, entry->key, len, entry);
ziv@2279	4597 if (HASH_COUNT(cache->table) > uw_Sqlcache_maxSize) {
ziv@2279	4598 // Deletes the first element of the cache.
ziv@2279	4599 uw_Sqlcache_delete(cache, cache->table);
ziv@2279	4600 }
ziv@2279	4601 }
ziv@2279	4602
ziv@2279	4603 unsigned long uw_Sqlcache_getTimeNow(uw_Sqlcache_Cache *cache) {
ziv@2279	4604 return ++cache->timeNow;
ziv@2279	4605 }
ziv@2279	4606
ziv@2279	4607 unsigned long uw_Sqlcache_timeMax(unsigned long x, unsigned long y) {
ziv@2279	4608 return x > y ? x : y;
ziv@2279	4609 }
ziv@2279	4610
ziv@2279	4611 char uw_Sqlcache_keySep = '_';
ziv@2279	4612
ziv@2284	4613 char uw_Sqlcache_allocKeyBuffer(char *keys, size_t numKeys) {
ziv@2279	4614 size_t len = 0;
ziv@2279	4615 while (numKeys-- > 0) {
ziv@2279	4616 char* k = keys[numKeys];
ziv@2279	4617 if (!k) {
ziv@2279	4618 // Can only happen when flushihg, in which case we don't need anything past the null key.
ziv@2279	4619 break;
ziv@2234	4620 }
ziv@2279	4621 // Leave room for separator.
ziv@2279	4622 len += 1 + strlen(k);
ziv@2234	4623 }
ziv@2279	4624 char *buf = malloc(len+1);
ziv@2279	4625 // If nothing is copied into the buffer, it should look like it has length 0.
ziv@2279	4626 buf[0] = 0;
ziv@2279	4627 return buf;
ziv@2279	4628 }
ziv@2279	4629
ziv@2279	4630 char uw_Sqlcache_keyCopy(char buf, char *key) {
ziv@2279	4631 *buf++ = uw_Sqlcache_keySep;
ziv@2279	4632 return stpcpy(buf, key);
ziv@2279	4633 }
ziv@2279	4634
ziv@2279	4635 // The NUL-terminated prefix of [key] below always looks something like "_k1_k2_k3..._kn".
ziv@2285	4636
ziv@2285	4637 uw_Sqlcache_Value uw_Sqlcache_check(uw_context ctx, uw_Sqlcache_Cache cache, char **keys) {
ziv@2285	4638 pthread_rwlock_rdlock(&cache->lock);
ziv@2281	4639 size_t numKeys = cache->numKeys;
ziv@2279	4640 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279	4641 char *buf = key;
ziv@2279	4642 time_t timeInvalid = cache->timeInvalid;
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 free(key);
ziv@2285	4650 pthread_rwlock_unlock(&cache->lock);
ziv@2279	4651 return NULL;
ziv@2279	4652 }
ziv@2279	4653 timeInvalid = uw_Sqlcache_timeMax(timeInvalid, entry->timeInvalid);
ziv@2234	4654 }
ziv@2279	4655 free(key);
ziv@2285	4656 // TODO: pass back copy of value and free it in the generated code... or use uw_malloc?
ziv@2279	4657 uw_Sqlcache_Value *value = entry->value;
ziv@2285	4658 pthread_rwlock_unlock(&cache->lock);
ziv@2279	4659 return value && value->timeValid > timeInvalid ? value : NULL;
ziv@2279	4660 }
ziv@2279	4661
ziv@2285	4662 void uw_Sqlcache_storeCommitOne(uw_Sqlcache_Cache cache, char keys, uw_Sqlcache_Value value) {
ziv@2285	4663 pthread_rwlock_wrlock(&cache->lock);
ziv@2281	4664 size_t numKeys = cache->numKeys;
ziv@2279	4665 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279	4666 char *buf = key;
ziv@2279	4667 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2279	4668 uw_Sqlcache_Entry *entry;
ziv@2279	4669 while (numKeys-- > 0) {
ziv@2279	4670 buf = uw_Sqlcache_keyCopy(buf, keys[numKeys]);
ziv@2279	4671 size_t len = buf - key;
ziv@2279	4672 entry = uw_Sqlcache_find(cache, key, len, 1);
ziv@2279	4673 if (!entry) {
ziv@2279	4674 entry = malloc(sizeof(uw_Sqlcache_Entry));
ziv@2279	4675 entry->key = strdup(key);
ziv@2279	4676 entry->value = NULL;
ziv@2285	4677 entry->timeInvalid = 0;
ziv@2279	4678 uw_Sqlcache_add(cache, entry, len);
ziv@2234	4679 }
ziv@2234	4680 }
ziv@2279	4681 free(key);
ziv@2279	4682 uw_Sqlcache_freeValue(entry->value);
ziv@2279	4683 entry->value = value;
ziv@2279	4684 entry->value->timeValid = timeNow;
ziv@2285	4685 pthread_rwlock_unlock(&cache->lock);
ziv@2279	4686 }
ziv@2279	4687
ziv@2282	4688 void uw_Sqlcache_flushCommitOne(uw_Sqlcache_Cache cache, char *keys) {
ziv@2285	4689 pthread_rwlock_wrlock(&cache->lock);
ziv@2281	4690 size_t numKeys = cache->numKeys;
ziv@2279	4691 char *key = uw_Sqlcache_allocKeyBuffer(keys, numKeys);
ziv@2279	4692 char *buf = key;
ziv@2279	4693 time_t timeNow = uw_Sqlcache_getTimeNow(cache);
ziv@2279	4694 uw_Sqlcache_Entry *entry;
ziv@2279	4695 while (numKeys-- > 0) {
ziv@2279	4696 char *k = keys[numKeys];
ziv@2279	4697 if (!k) {
ziv@2279	4698 if (entry) {
ziv@2279	4699 entry->timeInvalid = timeNow;
ziv@2234	4700 } else {
ziv@2279	4701 // Haven't found an entry yet, so the first key was null.
ziv@2279	4702 cache->timeInvalid = timeNow;
ziv@2234	4703 }
ziv@2279	4704 free(key);
ziv@2279	4705 return;
ziv@2234	4706 }
ziv@2279	4707 buf = uw_Sqlcache_keyCopy(buf, k);
ziv@2279	4708 size_t len = buf - key;
ziv@2279	4709 entry = uw_Sqlcache_find(cache, key, len, 0);
ziv@2279	4710 if (!entry) {
ziv@2279	4711 free(key);
ziv@2279	4712 return;
ziv@2279	4713 }
ziv@2234	4714 }
ziv@2279	4715 free(key);
ziv@2279	4716 // All the keys were non-null and the relevant entry is present, so we delete it.
ziv@2279	4717 uw_Sqlcache_delete(cache, entry);
ziv@2285	4718 pthread_rwlock_unlock(&cache->lock);
ziv@2285	4719 }
ziv@2285	4720
ziv@2285	4721 void uw_Sqlcache_freeUpdate(void *data, int dontCare) {
ziv@2285	4722 uw_context ctx = (uw_context)data;
ziv@2285	4723 uw_Sqlcache_Update *update = ctx->cacheUpdate;
ziv@2285	4724 while (update) {
ziv@2285	4725 char** keys = update->keys;
ziv@2285	4726 size_t numKeys = update->cache->numKeys;
ziv@2282	4727 while (numKeys-- > 0) {
ziv@2282	4728 free(keys[numKeys]);
ziv@2282	4729 }
ziv@2282	4730 free(keys);
ziv@2285	4731 // Don't free [update->value]: it's in the cache now!
ziv@2285	4732 uw_Sqlcache_Update *nextUpdate = update->next;
ziv@2285	4733 free(update);
ziv@2285	4734 update = nextUpdate;
ziv@2282	4735 }
ziv@2285	4736 ctx->cacheUpdate = NULL;
ziv@2285	4737 ctx->cacheUpdateTail = NULL;
ziv@2285	4738 }
ziv@2285	4739
ziv@2285	4740 void uw_Sqlcache_commitUpdate(void *data) {
ziv@2285	4741 uw_context ctx = (uw_context)data;
ziv@2285	4742 uw_Sqlcache_Update *update = ctx->cacheUpdate;
ziv@2285	4743 while (update) {
ziv@2285	4744 uw_Sqlcache_Cache *cache = update->cache;
ziv@2285	4745 char **keys = update->keys;
ziv@2285	4746 if (update->value) {
ziv@2285	4747 uw_Sqlcache_storeCommitOne(cache, keys, update->value);
ziv@2285	4748 } else {
ziv@2285	4749 uw_Sqlcache_flushCommitOne(cache, keys);
ziv@2285	4750 }
ziv@2285	4751 update = update->next;
ziv@2282	4752 }
ziv@2284	4753 }
ziv@2284	4754
ziv@2284	4755 char uw_Sqlcache_copyKeys(char keys, size_t numKeys) {
ziv@2284	4756 char *copy = malloc(sizeof(char ) * numKeys);
ziv@2284	4757 while (numKeys-- > 0) {
ziv@2285	4758 char *k = keys[numKeys];
ziv@2284	4759 copy[numKeys] = k ? strdup(k) : NULL;
ziv@2284	4760 }
ziv@2284	4761 return copy;
ziv@2282	4762 }
ziv@2282	4763
ziv@2285	4764 void uw_Sqlcache_store(uw_context ctx, uw_Sqlcache_Cache cache, char keys, uw_Sqlcache_Value value) {
ziv@2285	4765 uw_Sqlcache_Update *update = malloc(sizeof(uw_Sqlcache_Update));
ziv@2285	4766 update->cache = cache;
ziv@2285	4767 update->keys = uw_Sqlcache_copyKeys(keys, cache->numKeys);
ziv@2285	4768 update->value = value;
ziv@2285	4769 update->next = NULL;
ziv@2285	4770 if (ctx->cacheUpdateTail) {
ziv@2285	4771 // An update is already registered, so just extend it.
ziv@2285	4772 ctx->cacheUpdateTail->next = update;
ziv@2285	4773 } else {
ziv@2285	4774 ctx->cacheUpdate = update;
ziv@2285	4775 uw_register_transactional(ctx, ctx, uw_Sqlcache_commitUpdate, NULL, uw_Sqlcache_freeUpdate);
ziv@2285	4776 }
ziv@2285	4777 ctx->cacheUpdateTail = update;
ziv@2285	4778 }
ziv@2285	4779
ziv@2282	4780 void uw_Sqlcache_flush(uw_context ctx, uw_Sqlcache_Cache cache, char *keys) {
ziv@2285	4781 // A flush is represented in the queue as storing NULL.
ziv@2285	4782 uw_Sqlcache_store(ctx, cache, keys, NULL);
ziv@2285	4783 }

Mercurial > urweb

annotate src/c/urweb.c @ 2285:ad3ce1528f71