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

annotate src/c/urweb.c @ 1413:45bd58736bb2

Fix issues with empty page buffers for tasks

author	Adam Chlipala <adam@chlipala.net>
date	Sun, 23 Jan 2011 14:59:59 -0500
parents	55d0c8b01d18
children	d0786ff9bb22

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

Mercurial > urweb

annotate src/c/urweb.c @ 1413:45bd58736bb2