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

annotate src/c/urweb.c @ 1359:e525ad571e15

Recursive record unification errors, for more detail

author	Adam Chlipala <adam@chlipala.net>
date	Thu, 23 Dec 2010 11:23:31 -0500
parents	32c8a3509369
children	02fc16faecf3

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

Mercurial > urweb

annotate src/c/urweb.c @ 1359:e525ad571e15