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

annotate src/c/urweb.c @ 1353:e9cf053108ed

Remove redundant macro

author	Adam Chlipala <adam@chlipala.net>
date	Mon, 20 Dec 2010 13:29:56 -0500
parents	703c2c94afd5
children	32c8a3509369

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
adamc@311	1966 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1967 int len;
adamc@286	1968 char *r;
adamc@286	1969
adamc@311	1970 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1971 r = ctx->heap.front;
adamc@286	1972 sprintf(r, "%g%n", n, &len);
adamc@666	1973 ctx->heap.front += len+1;
adamc@286	1974 return r;
adamc@286	1975 }
adamc@286	1976
adamc@428	1977 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1978 int len;
adamc@286	1979
adamc@311	1980 uw_check(ctx, FLOATS_MAX);
adamc@666	1981 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1982 ctx->page.front += len;
adamc@428	1983
adamc@428	1984 return uw_unit_v;
adamc@286	1985 }
adamc@286	1986
adamc@311	1987 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1988 char r, s2;
adamc@137	1989
adamc@311	1990 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1991
adamc@666	1992 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	1993 unsigned char c = *s;
adamc@137	1994
adamc@137	1995 switch (c) {
adamc@137	1996 case '<':
adamc@137	1997 strcpy(s2, "<");
adamc@137	1998 s2 += 4;
adamc@137	1999 break;
adamc@137	2000 case '&':
adamc@137	2001 strcpy(s2, "&");
adamc@137	2002 s2 += 5;
adamc@137	2003 break;
adamc@137	2004 default:
adamc@1059	2005 *s2++ = c;
adamc@137	2006 }
adamc@137	2007 }
adamc@137	2008
adamc@137	2009 *s2++ = 0;
adamc@666	2010 ctx->heap.front = s2;
adamc@137	2011 return r;
adamc@135	2012 }
adamc@135	2013
adamc@428	2014 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	2015 uw_check(ctx, strlen(s) * 6);
adamc@135	2016
adamc@135	2017 for (; *s; s++) {
adamc@1054	2018 unsigned char c = *s;
adamc@135	2019
adamc@135	2020 switch (c) {
adamc@135	2021 case '<':
adamc@311	2022 uw_write_unsafe(ctx, "<");
adamc@135	2023 break;
adamc@135	2024 case '&':
adamc@311	2025 uw_write_unsafe(ctx, "&");
adamc@135	2026 break;
adamc@135	2027 default:
adamc@1059	2028 uw_writec_unsafe(ctx, c);
adamc@135	2029 }
adamc@135	2030 }
adamc@428	2031
adamc@428	2032 return uw_unit_v;
adamc@135	2033 }
adamc@180	2034
adamc@311	2035 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2036 if (b == uw_Basis_False)
adamc@286	2037 return "False";
adamc@286	2038 else
adamc@286	2039 return "True";
adamc@286	2040 }
adamc@286	2041
adamc@428	2042 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	2043 if (b == uw_Basis_False) {
adamc@311	2044 uw_check(ctx, 6);
adamc@666	2045 strcpy(ctx->page.front, "False");
adamc@666	2046 ctx->page.front += 5;
adamc@286	2047 } else {
adamc@311	2048 uw_check(ctx, 5);
adamc@666	2049 strcpy(ctx->page.front, "True");
adamc@666	2050 ctx->page.front += 4;
adamc@286	2051 }
adamc@428	2052
adamc@428	2053 return uw_unit_v;
adamc@286	2054 }
adamc@286	2055
adamc@436	2056 #define TIME_FMT "%x %X"
adamc@438	2057 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	2058
adamc@436	2059 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	2060 size_t len;
adamc@436	2061 char *r;
adamc@436	2062 struct tm stm;
adamc@436	2063
adamc@436	2064 if (localtime_r(&t, &stm)) {
adamc@436	2065 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2066 r = ctx->heap.front;
adamc@436	2067 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2068 ctx->heap.front += len+1;
adamc@436	2069 return r;
adamc@436	2070 } else
adamc@436	2071 return "<i>Invalid time</i>";
adamc@436	2072 }
adamc@436	2073
adamc@436	2074 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	2075 size_t len;
adamc@436	2076 char *r;
adamc@436	2077 struct tm stm;
adamc@436	2078
adamc@436	2079 if (localtime_r(&t, &stm)) {
adamc@436	2080 uw_check(ctx, TIMES_MAX);
adamc@666	2081 r = ctx->page.front;
adamc@436	2082 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2083 ctx->page.front += len;
adamc@436	2084 } else {
adamc@436	2085 uw_check(ctx, 20);
adamc@666	2086 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	2087 ctx->page.front += 19;
adamc@436	2088 }
adamc@436	2089
adamc@436	2090 return uw_unit_v;
adamc@436	2091 }
adamc@436	2092
adamc@821	2093 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2094 if (n >= 0 && n < strlen(s))
adamc@821	2095 return s[n];
adamc@821	2096 else
adamc@821	2097 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	2098 }
adamc@821	2099
adamc@821	2100 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	2101 if (n >= 0 && n < strlen(s))
adamc@821	2102 return &s[n];
adamc@821	2103 else
adamc@821	2104 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	2105 }
adamc@821	2106
adamc@828	2107 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	2108 return strlen(s);
adamc@828	2109 }
adamc@828	2110
adamc@829	2111 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2112 return strchr(s, ch);
adamc@829	2113 }
adamc@829	2114
adamc@831	2115 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	2116 return strcspn(s, chs);
adamc@831	2117 }
adamc@831	2118
adamc@829	2119 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	2120 uw_Basis_string r = strchr(s, ch);
adamc@829	2121 if (r == NULL)
adamc@829	2122 return NULL;
adamc@829	2123 else {
adamc@829	2124 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	2125 *nr = r - s;
adamc@829	2126 return nr;
adamc@829	2127 }
adamc@829	2128 }
adamc@829	2129
adamc@311	2130 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	2131 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	2132 char *s;
adamc@180	2133
adamc@311	2134 uw_check_heap(ctx, len);
adamc@180	2135
adamc@666	2136 s = ctx->heap.front;
adamc@180	2137
adamc@180	2138 strcpy(s, s1);
adamc@180	2139 strcat(s, s2);
adamc@666	2140 ctx->heap.front += len;
adamc@180	2141
adamc@180	2142 return s;
adamc@180	2143 }
adamc@278	2144
adamc@829	2145 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2146 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2147
adamc@829	2148 if (start < 0)
adamc@829	2149 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2150 if (len < 0)
adamc@829	2151 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2152 if (start + len > full_len)
adamc@829	2153 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2154
adamc@829	2155 if (start + len == full_len)
adamc@829	2156 return &s[start];
adamc@829	2157 else {
adamc@829	2158 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2159 memcpy(r, s+start, len);
adamc@829	2160 r[len] = 0;
adamc@829	2161 return r;
adamc@829	2162 }
adamc@829	2163
adamc@829	2164 }
adamc@829	2165
adamc@1023	2166 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2167 char *r;
adamc@1023	2168
adamc@1023	2169 uw_check_heap(ctx, 2);
adamc@1023	2170 r = ctx->heap.front;
adamc@1023	2171 r[0] = ch;
adamc@1023	2172 r[1] = 0;
adamc@1023	2173
adamc@1023	2174 ctx->heap.front += 2;
adamc@1023	2175
adamc@1023	2176 return r;
adamc@1023	2177 }
adamc@1023	2178
adamc@737	2179 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2180 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2181 char *s;
adamc@278	2182
adamc@311	2183 uw_check_heap(ctx, len);
adamc@278	2184
adamc@666	2185 s = ctx->heap.front;
adamc@278	2186
adamc@278	2187 strcpy(s, s1);
adamc@666	2188 ctx->heap.front += len;
adamc@278	2189
adamc@278	2190 return s;
adamc@278	2191 }
adamc@280	2192
adam@1295	2193 uw_Basis_string uw_dup_and_clear_error_message(uw_context ctx) {
adam@1295	2194 if (ctx->error_message[0]) {
adam@1295	2195 char *s = uw_strdup(ctx, ctx->error_message);
adam@1295	2196 ctx->error_message[0] = 0;
adam@1295	2197 return s;
adam@1295	2198 } else
adam@1295	2199 return NULL;
adam@1295	2200 }
adam@1295	2201
adamc@737	2202 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2203 if (s1)
adamc@737	2204 return uw_strdup(ctx, s1);
adamc@493	2205 else
adamc@493	2206 return NULL;
adamc@493	2207 }
adamc@493	2208
adamc@742	2209 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2210 char *r = uw_malloc(ctx, len);
adamc@742	2211 memcpy(r, p, len);
adamc@742	2212 return r;
adamc@742	2213 }
adamc@280	2214
adamc@879	2215 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2216
adamc@311	2217 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2218 int len;
adamc@281	2219 char *r;
adamc@281	2220
adamc@311	2221 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2222 r = ctx->heap.front;
adamc@879	2223 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2224 ctx->heap.front += len+1;
adamc@281	2225 return r;
adamc@281	2226 }
adamc@281	2227
adamc@467	2228 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2229 if (n == NULL)
adamc@467	2230 return "NULL";
adamc@467	2231 else
adamc@467	2232 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2233 }
adamc@467	2234
adamc@879	2235 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2236
adamc@311	2237 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2238 int len;
adamc@281	2239 char *r;
adamc@281	2240
adamc@311	2241 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2242 r = ctx->heap.front;
adamc@879	2243 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2244 ctx->heap.front += len+1;
adamc@281	2245 return r;
adamc@281	2246 }
adamc@281	2247
adamc@467	2248 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2249 if (n == NULL)
adamc@467	2250 return "NULL";
adamc@467	2251 else
adamc@467	2252 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2253 }
adamc@467	2254
adamc@879	2255 int uw_Estrings = 1;
adamc@879	2256 char *uw_sqlsuffixString = "::text";
adamc@1011	2257 char *uw_sqlsuffixChar = "::char";
adamc@281	2258
adamc@311	2259 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2260 char r, s2;
adamc@280	2261
adamc@879	2262 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2263
adamc@666	2264 r = s2 = ctx->heap.front;
adamc@879	2265 if (uw_Estrings)
adamc@879	2266 *s2++ = 'E';
adamc@280	2267 *s2++ = '\'';
adamc@280	2268
adamc@280	2269 for (; *s; s++) {
adamc@280	2270 char c = *s;
adamc@280	2271
adamc@280	2272 switch (c) {
adamc@280	2273 case '\'':
adamc@885	2274 if (uw_Estrings)
adamc@885	2275 strcpy(s2, "\\'");
adamc@885	2276 else
adamc@885	2277 strcpy(s2, "''");
adamc@280	2278 s2 += 2;
adamc@280	2279 break;
adamc@280	2280 case '\\':
adamc@885	2281 if (uw_Estrings) {
adamc@885	2282 strcpy(s2, "\\\\");
adamc@885	2283 s2 += 2;
adamc@885	2284 } else
adamc@885	2285 *s2++ = '\\';
adamc@280	2286 break;
adamc@280	2287 default:
adamc@1150	2288 if (isprint((int)c))
adamc@280	2289 *s2++ = c;
adamc@879	2290 else if (uw_Estrings) {
adamc@737	2291 sprintf(s2, "\\%03o", c);
adamc@280	2292 s2 += 4;
adamc@280	2293 }
adamc@879	2294 else
adamc@879	2295 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2296 }
adamc@280	2297 }
adamc@280	2298
adamc@879	2299 *s2++ = '\'';
adamc@879	2300 strcpy(s2, uw_sqlsuffixString);
adamc@879	2301 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2302 return r;
adamc@280	2303 }
adamc@281	2304
adamc@1011	2305 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2306 char r, s2;
adamc@1011	2307
adamc@1011	2308 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2309
adamc@1011	2310 r = s2 = ctx->heap.front;
adamc@1011	2311 if (uw_Estrings)
adamc@1011	2312 *s2++ = 'E';
adamc@1011	2313 *s2++ = '\'';
adamc@1011	2314
adamc@1011	2315 switch (c) {
adamc@1011	2316 case '\'':
adamc@1011	2317 if (uw_Estrings)
adamc@1011	2318 strcpy(s2, "\\'");
adamc@1011	2319 else
adamc@1011	2320 strcpy(s2, "''");
adamc@1011	2321 s2 += 2;
adamc@1011	2322 break;
adamc@1011	2323 case '\\':
adamc@1011	2324 if (uw_Estrings) {
adamc@1011	2325 strcpy(s2, "\\\\");
adamc@1011	2326 s2 += 2;
adamc@1011	2327 } else
adamc@1011	2328 *s2++ = '\\';
adamc@1011	2329 break;
adamc@1011	2330 default:
adamc@1150	2331 if (isprint((int)c))
adamc@1011	2332 *s2++ = c;
adamc@1011	2333 else if (uw_Estrings) {
adamc@1011	2334 sprintf(s2, "\\%03o", c);
adamc@1011	2335 s2 += 4;
adamc@1011	2336 }
adamc@1011	2337 else
adamc@1011	2338 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2339 }
adamc@1011	2340
adamc@1011	2341 *s2++ = '\'';
adamc@1011	2342 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2343 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2344 return r;
adamc@1011	2345 }
adamc@1011	2346
adamc@879	2347 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2348
adamc@737	2349 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2350 char r, s2;
adamc@737	2351 size_t i;
adamc@737	2352
adamc@879	2353 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2354
adamc@737	2355 r = s2 = ctx->heap.front;
adamc@879	2356 if (uw_Estrings)
adamc@879	2357 *s2++ = 'E';
adamc@737	2358 *s2++ = '\'';
adamc@737	2359
adamc@737	2360 for (i = 0; i < b.size; ++i) {
adamc@737	2361 char c = b.data[i];
adamc@737	2362
adamc@737	2363 switch (c) {
adamc@737	2364 case '\'':
adamc@885	2365 if (uw_Estrings)
adamc@885	2366 strcpy(s2, "\\'");
adamc@885	2367 else
adamc@885	2368 strcpy(s2, "''");
adamc@737	2369 s2 += 2;
adamc@737	2370 break;
adamc@737	2371 case '\\':
adamc@885	2372 if (uw_Estrings) {
adamc@885	2373 strcpy(s2, "\\\\\\\\");
adamc@885	2374 s2 += 4;
adamc@885	2375 } else
adamc@885	2376 *s2++ = '\\';
adamc@737	2377 break;
adamc@737	2378 default:
adamc@1150	2379 if (isprint((int)c))
adamc@737	2380 *s2++ = c;
adamc@879	2381 else if (uw_Estrings) {
adamc@737	2382 sprintf(s2, "\\\\%03o", c);
adamc@737	2383 s2 += 5;
adamc@737	2384 }
adamc@879	2385 else
adamc@879	2386 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2387 }
adamc@737	2388 }
adamc@737	2389
adamc@879	2390 *s2++ = '\'';
adamc@879	2391 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2392 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2393 return r;
adamc@737	2394 }
adamc@737	2395
adamc@682	2396 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2397 int len;
adamc@682	2398 char *r;
adamc@682	2399 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2400
adamc@682	2401 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2402 r = ctx->heap.front;
adamc@879	2403 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2404 ctx->heap.front += len+1;
adamc@682	2405 return r;
adamc@682	2406 }
adamc@682	2407
adamc@682	2408 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2409 int len;
adamc@682	2410 char *r;
adamc@682	2411 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2412
adamc@682	2413 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2414 r = ctx->heap.front;
adamc@682	2415 sprintf(r, "%lld%n", combo, &len);
adamc@682	2416 ctx->heap.front += len+1;
adamc@682	2417 return r;
adamc@682	2418 }
adamc@682	2419
adamc@879	2420 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2421
adamc@682	2422 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2423 int len;
adamc@682	2424 char *r;
adamc@682	2425
adamc@682	2426 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2427 r = ctx->heap.front;
adamc@879	2428 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2429 ctx->heap.front += len+1;
adamc@682	2430 return r;
adamc@682	2431 }
adamc@682	2432
adamc@682	2433 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2434 int len;
adamc@682	2435 char *r;
adamc@682	2436
adamc@682	2437 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2438 r = ctx->heap.front;
adamc@682	2439 sprintf(r, "%u%n", cli, &len);
adamc@682	2440 ctx->heap.front += len+1;
adamc@682	2441 return r;
adamc@682	2442 }
adamc@682	2443
adamc@467	2444 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2445 if (s == NULL)
adamc@467	2446 return "NULL";
adamc@467	2447 else
adamc@467	2448 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2449 }
adamc@467	2450
adamc@311	2451 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2452 if (b == uw_Basis_False)
adamc@281	2453 return "FALSE";
adamc@281	2454 else
adamc@281	2455 return "TRUE";
adamc@281	2456 }
adamc@282	2457
adamc@467	2458 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2459 if (b == NULL)
adamc@467	2460 return "NULL";
adamc@467	2461 else
adamc@467	2462 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2463 }
adamc@467	2464
adamc@439	2465 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2466 size_t len;
adamc@682	2467 char r, s;
adamc@682	2468 struct tm stm;
adamc@682	2469
adamc@682	2470 if (localtime_r(&t, &stm)) {
adamc@682	2471 s = uw_malloc(ctx, TIMES_MAX);
adamc@682	2472 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2473 r = uw_malloc(ctx, len + 14);
adamc@682	2474 sprintf(r, "'%s'::timestamp", s);
adamc@682	2475 return r;
adamc@682	2476 } else
adamc@682	2477 return "<Invalid time>";
adamc@682	2478 }
adamc@682	2479
adamc@682	2480 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2481 size_t len;
adamc@439	2482 char *r;
adamc@439	2483 struct tm stm;
adamc@439	2484
adamc@439	2485 if (localtime_r(&t, &stm)) {
adamc@439	2486 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2487 r = ctx->heap.front;
adamc@439	2488 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2489 ctx->heap.front += len+1;
adamc@439	2490 return r;
adamc@439	2491 } else
adamc@439	2492 return "<Invalid time>";
adamc@439	2493 }
adamc@439	2494
adamc@467	2495 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2496 if (t == NULL)
adamc@467	2497 return "NULL";
adamc@467	2498 else
adamc@467	2499 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2500 }
adamc@467	2501
adamc@311	2502 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2503 static uw_Basis_int true = 1;
adamc@311	2504 static uw_Basis_int false = 0;
adamc@282	2505
adamc@311	2506 if (b == uw_Basis_False)
adamc@282	2507 return (char *)&false;
adamc@282	2508 else
adamc@282	2509 return (char *)&true;
adamc@282	2510 }
adamc@284	2511
adamc@311	2512 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2513 int len;
adamc@284	2514 char *r;
adamc@284	2515
adamc@311	2516 uw_check_heap(ctx, INTS_MAX);
adamc@666	2517 r = ctx->heap.front;
adamc@284	2518 sprintf(r, "%lld%n", n, &len);
adamc@666	2519 ctx->heap.front += len+1;
adamc@284	2520 return r;
adamc@284	2521 }
adamc@285	2522
adamc@311	2523 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2524 int len;
adamc@285	2525 char *r;
adamc@285	2526
adamc@311	2527 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2528 r = ctx->heap.front;
adamc@285	2529 sprintf(r, "%g%n", n, &len);
adamc@666	2530 ctx->heap.front += len+1;
adamc@285	2531 return r;
adamc@285	2532 }
adamc@285	2533
adamc@821	2534 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2535 char *r = uw_malloc(ctx, 2);
adamc@821	2536 r[0] = ch;
adamc@821	2537 r[1] = 0;
adamc@821	2538 return r;
adamc@821	2539 }
adamc@821	2540
adamc@311	2541 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2542 if (b == uw_Basis_False)
adamc@285	2543 return "False";
adamc@285	2544 else
adamc@285	2545 return "True";
adamc@285	2546 }
adamc@288	2547
adamc@436	2548 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2549 size_t len;
adamc@436	2550 char *r;
adamc@436	2551 struct tm stm;
adamc@436	2552
adamc@436	2553 if (localtime_r(&t, &stm)) {
adamc@436	2554 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2555 r = ctx->heap.front;
adamc@436	2556 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2557 ctx->heap.front += len+1;
adamc@436	2558 return r;
adamc@436	2559 } else
adamc@436	2560 return "<Invalid time>";
adamc@436	2561 }
adamc@288	2562
adam@1352	2563 uw_Basis_string uw_Basis_timeToStringf(uw_context ctx, const char *fmt, uw_Basis_time t) {
adam@1352	2564 size_t len;
adam@1352	2565 char *r;
adam@1352	2566 struct tm stm;
adam@1352	2567
adam@1352	2568 if (localtime_r(&t, &stm)) {
adam@1352	2569 uw_check_heap(ctx, TIMES_MAX);
adam@1352	2570 r = ctx->heap.front;
adam@1352	2571 len = strftime(r, TIMES_MAX, fmt, &stm);
adam@1352	2572 ctx->heap.front += len+1;
adam@1352	2573 return r;
adam@1352	2574 } else
adam@1352	2575 return "<Invalid time>";
adam@1352	2576 }
adam@1352	2577
adamc@311	2578 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2579 char *endptr;
adamc@311	2580 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2581
adamc@288	2582 if (s != '\0' && endptr == '\0') {
adamc@311	2583 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2584 *r = n;
adamc@288	2585 return r;
adamc@288	2586 } else
adamc@288	2587 return NULL;
adamc@288	2588 }
adamc@289	2589
adamc@311	2590 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2591 char *endptr;
adamc@311	2592 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2593
adamc@289	2594 if (s != '\0' && endptr == '\0') {
adamc@311	2595 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2596 *r = n;
adamc@289	2597 return r;
adamc@289	2598 } else
adamc@289	2599 return NULL;
adamc@289	2600 }
adamc@289	2601
adamc@821	2602 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2603 if (s[0] == 0) {
adamc@821	2604 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2605 r[0] = 0;
adamc@821	2606 return r;
adamc@821	2607 } else if (s[1] != 0)
adamc@821	2608 return NULL;
adamc@821	2609 else {
adamc@821	2610 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2611 r[0] = s[0];
adamc@821	2612 return r;
adamc@821	2613 }
adamc@821	2614 }
adamc@821	2615
adamc@311	2616 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2617 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2618 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2619
adamc@289	2620 if (!strcasecmp (s, "True"))
adamc@289	2621 return &true;
adamc@289	2622 else if (!strcasecmp (s, "False"))
adamc@289	2623 return &false;
adamc@289	2624 else
adamc@289	2625 return NULL;
adamc@289	2626 }
adamc@292	2627
adamc@436	2628 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2629 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2630 struct tm stm;
adamc@436	2631
adamc@439	2632 if (dot) {
adamc@439	2633 *dot = 0;
adamc@439	2634 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2635 *dot = '.';
adamc@439	2636 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2637 *r = mktime(&stm);
adamc@439	2638 return r;
adamc@439	2639 }
adamc@439	2640 else {
adamc@439	2641 *dot = '.';
adamc@439	2642 return NULL;
adamc@439	2643 }
adamc@436	2644 }
adamc@439	2645 else {
adamc@439	2646 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2647 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2648 *r = mktime(&stm);
adamc@439	2649 return r;
adamc@439	2650 }
adamc@439	2651 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2652 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2653 *r = mktime(&stm);
adamc@439	2654 return r;
adamc@439	2655 }
adamc@439	2656 else
adamc@439	2657 return NULL;
adamc@439	2658 }
adamc@436	2659 }
adamc@436	2660
adam@1352	2661 uw_Basis_time uw_Basis_stringToTimef(uw_context ctx, const char fmt, uw_Basis_string s) {
adam@1352	2662 char *end = strchr(s, 0);
adam@1352	2663 struct tm stm;
adam@1352	2664
adam@1352	2665 if (strptime(s, fmt, &stm) == end) {
adam@1352	2666 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adam@1352	2667 *r = mktime(&stm);
adam@1352	2668 return r;
adam@1352	2669 }
adam@1352	2670 else
adam@1352	2671 return NULL;
adam@1352	2672 }
adam@1352	2673
adamc@311	2674 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2675 char *endptr;
adamc@311	2676 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2677
adamc@292	2678 if (s != '\0' && endptr == '\0')
adamc@292	2679 return n;
adamc@292	2680 else
adamc@311	2681 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2682 }
adamc@293	2683
adamc@682	2684 #include <errno.h>
adamc@682	2685
adamc@678	2686 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2687 unsigned long long n;
adamc@682	2688
adamc@682	2689 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2690 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2691 else {
adamc@682	2692 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2693 return ch;
adamc@682	2694 }
adamc@682	2695 }
adamc@682	2696
adamc@682	2697 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2698 char *endptr;
adamc@682	2699 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2700
adamc@678	2701 if (s != '\0' && endptr == '\0')
adamc@678	2702 return n;
adamc@678	2703 else
adamc@682	2704 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2705 }
adamc@678	2706
adamc@311	2707 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2708 char *endptr;
adamc@311	2709 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2710
adamc@293	2711 if (s != '\0' && endptr == '\0')
adamc@293	2712 return n;
adamc@293	2713 else
adamc@311	2714 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2715 }
adamc@293	2716
adamc@821	2717 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2718 if (s[0] == 0)
adamc@821	2719 return 0;
adamc@821	2720 else if (s[1] != 0)
adamc@821	2721 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2722 else
adamc@821	2723 return s[0];
adamc@821	2724 }
adamc@821	2725
adamc@311	2726 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2727 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2728 return uw_Basis_True;
adamc@296	2729 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2730 return uw_Basis_False;
adamc@293	2731 else
adamc@311	2732 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2733 }
adamc@436	2734
adam@1352	2735 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adam@1352	2736 char dot = strchr(s, '.'), end = strchr(s, 0);
adam@1352	2737 struct tm stm = {};
adam@1352	2738
adam@1352	2739 if (dot) {
adam@1352	2740 *dot = 0;
adam@1352	2741 if (strptime(s, TIME_FMT_PG, &stm)) {
adam@1352	2742 *dot = '.';
adam@1352	2743 return mktime(&stm);
adam@1352	2744 }
adam@1352	2745 else {
adam@1352	2746 *dot = '.';
adam@1352	2747 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adam@1352	2748 }
adam@1352	2749 }
adam@1352	2750 else {
adam@1352	2751 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adam@1352	2752 return mktime(&stm);
adam@1352	2753 } else if (strptime(s, TIME_FMT, &stm) == end) {
adam@1352	2754 return mktime(&stm);
adam@1352	2755 } else
adam@1352	2756 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adam@1352	2757 }
adam@1352	2758 }
adam@1352	2759
adamc@436	2760 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2761 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2762 struct tm stm = {};
adamc@436	2763
adamc@438	2764 if (dot) {
adamc@438	2765 *dot = 0;
adamc@438	2766 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2767 *dot = '.';
adamc@438	2768 return mktime(&stm);
adamc@438	2769 }
adamc@438	2770 else {
adamc@438	2771 *dot = '.';
adamc@438	2772 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2773 }
adamc@438	2774 }
adamc@438	2775 else {
adamc@439	2776 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2777 return mktime(&stm);
adamc@439	2778 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2779 return mktime(&stm);
adamc@438	2780 else
adamc@438	2781 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2782 }
adamc@436	2783 }
adamc@457	2784
adam@1352	2785 uw_Basis_time uw_Basis_stringToTimef_error(uw_context ctx, const char *fmt, uw_Basis_string s) {
adam@1352	2786 char *end = strchr(s, 0);
adamc@939	2787 struct tm stm = {};
adamc@939	2788
adam@1352	2789 if (strptime(s, fmt, &stm) == end)
adam@1352	2790 return mktime(&stm);
adam@1352	2791 else
adam@1352	2792 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2793 }
adamc@939	2794
adamc@742	2795 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2796 char *r = ctx->heap.front;
adamc@742	2797 uw_Basis_blob b = {len, r};
adamc@742	2798
adamc@742	2799 uw_check_heap(ctx, len);
adamc@742	2800
adamc@742	2801 while (*s) {
adamc@742	2802 if (s[0] == '\\') {
adamc@742	2803 if (s[1] == '\\') {
adamc@742	2804 *r++ = '\\';
adamc@742	2805 s += 2;
adamc@1153	2806 } else if (isdigit((int)s[1]) && isdigit((int)s[2]) && isdigit((int)s[3])) {
adamc@742	2807 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2808 s += 4;
adamc@742	2809 }
adamc@742	2810 else {
adamc@742	2811 *r++ = '\\';
adamc@742	2812 ++s;
adamc@742	2813 }
adamc@742	2814 } else {
adamc@742	2815 *r++ = s[0];
adamc@742	2816 ++s;
adamc@742	2817 }
adamc@742	2818 }
adamc@742	2819
adamc@742	2820 b.size = r - ctx->heap.front;
adamc@742	2821 ctx->heap.front = r;
adamc@742	2822 return b;
adamc@742	2823 }
adamc@742	2824
adamc@1052	2825 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052	2826
adamc@463	2827 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2828 int len = strlen(c);
adamc@854	2829 char *p = ctx->outHeaders.start;
adamc@474	2830
adamc@1134	2831 while ((p = strstr(p, "\nSet-Cookie: "))) {
adamc@474	2832 char *p2;
adamc@474	2833 p += 13;
adamc@474	2834 p2 = strchr(p, '=');
adamc@474	2835
adamc@474	2836 if (p2) {
adamc@474	2837 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2838
adamc@474	2839 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2840 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2841 return NULL;
adamc@1052	2842 else {
adamc@1052	2843 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	2844 memcpy(ret, p2+1, sz);
adamc@1052	2845 ret[sz] = 0;
adamc@1052	2846 return ret;
adamc@1052	2847 }
adamc@474	2848 }
adamc@474	2849 }
adamc@474	2850 }
adamc@463	2851
adamc@1134	2852 if ((p = uw_Basis_requestHeader(ctx, "Cookie"))) {
adamc@1051	2853 char *p2;
adamc@1051	2854
adamc@854	2855 while (1) {
adamc@1051	2856 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1134	2857 if ((p2 = strchr(p, ';'))) {
adamc@1051	2858 size_t n = p2 - (p + len);
adamc@1051	2859 char *r = uw_malloc(ctx, n);
adamc@1051	2860 memcpy(r, p + 1 + len, n-1);
adamc@1051	2861 r[n-1] = 0;
adamc@1051	2862 return r;
adamc@1051	2863 } else
adamc@1051	2864 return p + 1 + len;
adamc@1134	2865 } else if ((p = strchr(p, ';')))
adamc@854	2866 p += 2;
adamc@463	2867 else
adamc@463	2868 return NULL;
adamc@463	2869 }
adamc@463	2870 }
adamc@792	2871
adamc@792	2872 return NULL;
adamc@457	2873 }
adamc@462	2874
adamc@1050	2875 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	2876 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2877 uw_write_header(ctx, c);
adamc@462	2878 uw_write_header(ctx, "=");
adamc@462	2879 uw_write_header(ctx, v);
adamc@466	2880 uw_write_header(ctx, "; path=");
adamc@466	2881 uw_write_header(ctx, prefix);
adamc@1050	2882 if (expires) {
adamc@1050	2883 char formatted[30];
adamc@1050	2884 struct tm tm;
adamc@1050	2885
adamc@1050	2886 gmtime_r(expires, &tm);
adamc@1050	2887
adamc@1050	2888 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	2889
adamc@1050	2890 uw_write_header(ctx, "; expires=");
adamc@1050	2891 uw_write_header(ctx, formatted);
adamc@1050	2892 }
adamc@1050	2893 if (secure)
adamc@1050	2894 uw_write_header(ctx, "; secure");
adamc@462	2895 uw_write_header(ctx, "\r\n");
adamc@462	2896
adamc@462	2897 return uw_unit_v;
adamc@462	2898 }
adamc@667	2899
adamc@1050	2900 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	2901 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	2902 uw_write_header(ctx, c);
adamc@1050	2903 uw_write_header(ctx, "=; path=");
adamc@1050	2904 uw_write_header(ctx, prefix);
adamc@1052	2905 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	2906
adamc@1050	2907 return uw_unit_v;
adamc@1050	2908 }
adamc@1050	2909
adamc@1113	2910 size_t uw_deltas_max = SIZE_MAX;
adamc@1113	2911
adamc@682	2912 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2913 unsigned i;
adamc@682	2914 delta *d;
adamc@671	2915
adamc@682	2916 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2917 if (ctx->deltas[i].client == client)
adamc@682	2918 return &ctx->deltas[i];
adamc@671	2919
adamc@682	2920 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@1113	2921 if (ctx->n_deltas + 1 > uw_deltas_max)
adamc@1113	2922 uw_error(ctx, FATAL, "Exceeded limit on number of deltas");
adamc@1113	2923
adamc@682	2924 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@1113	2925 buf_init(uw_messages_max, &ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2926 }
adamc@671	2927
adamc@682	2928 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2929 d->client = client;
adamc@682	2930 buf_reset(&d->msgs);
adamc@682	2931 return d;
adamc@671	2932 }
adamc@671	2933
adamc@668	2934 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2935 if (ctx->client == NULL)
adamc@682	2936 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2937
adamc@682	2938 return new_channel(ctx->client);
adamc@668	2939 }
adamc@668	2940
adamc@668	2941 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2942 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2943 size_t len;
adamc@682	2944 int preLen;
adamc@682	2945 char pre[INTS_MAX + 2];
adamc@668	2946
adamc@682	2947 len = strlen(msg);
adamc@682	2948
adamc@682	2949 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2950
adamc@1113	2951 ctx_buf_append(ctx, "messages", &d->msgs, pre, preLen);
adamc@1113	2952 ctx_buf_append(ctx, "messages", &d->msgs, msg, len);
adamc@1113	2953 ctx_buf_append(ctx, "messages", &d->msgs, "\n", 1);
adamc@671	2954
adamc@671	2955 return uw_unit_v;
adamc@668	2956 }
adamc@671	2957
adam@1327	2958 int uw_rollback(uw_context ctx, int will_retry) {
adamc@1131	2959 int i;
adamc@1131	2960 cleanup *cl;
adamc@1131	2961
adamc@1131	2962 if (ctx->client)
adamc@1131	2963 release_client(ctx->client);
adamc@1131	2964
adamc@1131	2965 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1131	2966 cl->func(cl->arg);
adamc@1131	2967
adamc@1131	2968 ctx->cleanup_front = ctx->cleanup;
adamc@1131	2969
adamc@1131	2970 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	2971 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	2972 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@1131	2973
adamc@1131	2974 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1131	2975 if (ctx->transactionals[i].free)
adam@1327	2976 ctx->transactionals[i].free(ctx->transactionals[i].data, will_retry);
adamc@1131	2977
adamc@1144	2978 return ctx->app ? ctx->app->db_rollback(ctx) : 0;
adamc@1131	2979 }
adamc@1131	2980
adamc@671	2981 void uw_commit(uw_context ctx) {
adamc@1104	2982 int i;
adamc@1104	2983
adamc@1131	2984 if (uw_has_error(ctx)) {
adam@1327	2985 uw_rollback(ctx, 0);
adamc@1131	2986 return;
adamc@1131	2987 }
adamc@1131	2988
adamc@1104	2989 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2990 if (ctx->transactionals[i].rollback != NULL)
adamc@1131	2991 if (ctx->transactionals[i].commit) {
adamc@1083	2992 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	2993 if (uw_has_error(ctx)) {
adam@1327	2994 uw_rollback(ctx, 0);
adamc@1131	2995 return;
adamc@1131	2996 }
adamc@1131	2997 }
adamc@771	2998
adamc@1104	2999 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	3000 if (ctx->transactionals[i].rollback == NULL)
adamc@1131	3001 if (ctx->transactionals[i].commit) {
adamc@1083	3002 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@1131	3003 if (uw_has_error(ctx)) {
adam@1327	3004 uw_rollback(ctx, 0);
adamc@1131	3005 return;
adamc@1131	3006 }
adamc@1131	3007 }
adamc@1131	3008
adamc@1131	3009 if (ctx->app->db_commit(ctx)) {
adamc@1131	3010 uw_set_error_message(ctx, "Error running SQL COMMIT");
adamc@1131	3011 return;
adamc@1131	3012 }
adamc@682	3013
adamc@682	3014 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	3015 delta *d = &ctx->deltas[i];
adamc@682	3016 client *c = find_client(d->client);
adamc@682	3017
adamc@682	3018 assert (c != NULL && c->mode == USED);
adamc@682	3019
adamc@685	3020 client_send(c, &d->msgs);
adamc@682	3021 }
adamc@682	3022
adamc@682	3023 if (ctx->client)
adamc@685	3024 release_client(ctx->client);
adamc@771	3025
adamc@1104	3026 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	3027 if (ctx->transactionals[i].free)
adam@1327	3028 ctx->transactionals[i].free(ctx->transactionals[i].data, 0);
adamc@916	3029
adamc@916	3030 // Splice script data into appropriate part of page
adamc@1065	3031 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	3032 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	3033 if (start) {
adamc@995	3034 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	3035 ctx->page.front -= 4;
adamc@995	3036 }
adamc@995	3037 } else if (buf_used(&ctx->script) == 0) {
adamc@916	3038 size_t len = strlen(ctx->script_header);
adamc@916	3039 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3040 if (start) {
adamc@1113	3041 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	3042 start = strstr(ctx->page.start, "<sc>");
adamc@916	3043 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3044 ctx->page.front += len - 4;
adamc@916	3045 memcpy(start, ctx->script_header, len);
adamc@916	3046 }
adamc@916	3047 } else {
adamc@916	3048 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	3049 size_t lenP = lenH + 40 + len;
adamc@916	3050 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	3051 if (start) {
adamc@1113	3052 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	3053 start = strstr(ctx->page.start, "<sc>");
adamc@916	3054 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	3055 ctx->page.front += lenP - 4;
adamc@916	3056 memcpy(start, ctx->script_header, lenH);
adamc@916	3057 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	3058 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	3059 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	3060 }
adamc@916	3061 }
adamc@671	3062 }
adamc@671	3063
adamc@683	3064
adamc@1113	3065 size_t uw_transactionals_max = SIZE_MAX;
adamc@1113	3066
adamc@771	3067 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adam@1327	3068 uw_callback_with_retry free) {
adamc@771	3069 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1113	3070 if (ctx->used_transactionals+1 > uw_transactionals_max)
adamc@1113	3071 uw_error(ctx, FATAL, "Exceeded limit on number of transactionals");
adamc@1084	3072 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	3073 ++ctx->n_transactionals;
adamc@771	3074 }
adamc@771	3075
adamc@771	3076 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	3077 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	3078 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	3079 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	3080 }
adamc@771	3081
adamc@683	3082
adamc@683	3083 // "Garbage collection"
adamc@683	3084
adamc@1121	3085 void uw_do_expunge(uw_context ctx, uw_Basis_client cli, void *data);
adamc@1121	3086 void uw_post_expunge(uw_context ctx, void *data);
adamc@1121	3087
adamc@1121	3088 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli, void *data) {
adamc@683	3089 int r = setjmp(ctx->jmp_buf);
adamc@683	3090
adamc@1121	3091 if (r == 0)
adamc@1121	3092 uw_do_expunge(ctx, cli, data);
adamc@1121	3093 else
adamc@1121	3094 ctx->app->db_rollback(ctx);
adamc@1121	3095
adamc@1121	3096 uw_post_expunge(ctx, data);
adamc@683	3097
adamc@683	3098 return r;
adamc@683	3099 }
adamc@683	3100
adamc@683	3101 void uw_prune_clients(uw_context ctx) {
adamc@683	3102 client c, next, *prev = NULL;
adamc@683	3103 time_t cutoff;
adamc@683	3104
adamc@1094	3105 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	3106
adamc@683	3107 pthread_mutex_lock(&clients_mutex);
adamc@683	3108
adamc@683	3109 for (c = clients_used; c; c = next) {
adamc@683	3110 next = c->next;
adamc@683	3111 pthread_mutex_lock(&c->lock);
adamc@685	3112 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	3113 failure_kind fk = UNLIMITED_RETRY;
adamc@683	3114 if (prev)
adamc@683	3115 prev->next = next;
adamc@683	3116 else
adamc@683	3117 clients_used = next;
adamc@684	3118 uw_reset(ctx);
adamc@683	3119 while (fk == UNLIMITED_RETRY) {
adamc@1121	3120 fk = uw_expunge(ctx, c->id, c->data);
adamc@1121	3121 if (fk == UNLIMITED_RETRY)
adamc@684	3122 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	3123 }
adamc@684	3124 if (fk == SUCCESS)
adamc@684	3125 free_client(c);
adamc@1121	3126 else
adamc@856	3127 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@683	3128 }
adamc@683	3129 else
adamc@683	3130 prev = c;
adamc@683	3131 pthread_mutex_unlock(&c->lock);
adamc@683	3132 }
adamc@683	3133
adamc@683	3134 pthread_mutex_unlock(&clients_mutex);
adamc@683	3135 }
adamc@687	3136
adamc@687	3137 failure_kind uw_initialize(uw_context ctx) {
adamc@687	3138 int r = setjmp(ctx->jmp_buf);
adamc@687	3139
adamc@687	3140 if (r == 0) {
adamc@1094	3141 if (ctx->app->db_begin(ctx))
adamc@687	3142 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	3143 ctx->app->initializer(ctx);
adamc@1094	3144 if (ctx->app->db_commit(ctx))
adamc@687	3145 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	3146 }
adamc@687	3147
adamc@687	3148 return r;
adamc@687	3149 }
adamc@717	3150
adamc@1065	3151 static int url_bad(uw_Basis_string s) {
adamc@1065	3152 for (; *s; ++s)
adamc@1153	3153 if (!isgraph((int)*s))
adamc@1065	3154 return 1;
adamc@1065	3155
adamc@1065	3156 return 0;
adamc@1065	3157 }
adamc@1065	3158
adamc@717	3159 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	3160 if (url_bad(s))
adamc@1065	3161 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	3162 if (ctx->app->check_url(s))
adamc@770	3163 return s;
adamc@770	3164 else
adamc@770	3165 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	3166 }
adamc@734	3167
adamc@770	3168 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	3169 if (url_bad(s))
adamc@1065	3170 return NULL;
adamc@1094	3171 if (ctx->app->check_url(s))
adamc@770	3172 return s;
adamc@770	3173 else
adamc@770	3174 return NULL;
adamc@770	3175 }
adamc@770	3176
adamc@770	3177 int mime_format(const char *s) {
adamc@770	3178 for (; *s; ++s)
adamc@1153	3179 if (!isalnum((int)s) && s != '/' && s != '-' && s != '.')
adamc@770	3180 return 0;
adamc@770	3181
adamc@770	3182 return 1;
adamc@770	3183 }
adamc@770	3184
adamc@741	3185 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3186 if (!mime_format(s))
adamc@770	3187 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	3188
adamc@1094	3189 if (ctx->app->check_mime(s))
adamc@770	3190 return s;
adamc@770	3191 else
adamc@770	3192 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	3193 }
adamc@770	3194
adamc@770	3195 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	3196 if (!mime_format(s))
adamc@770	3197 return NULL;
adamc@770	3198
adamc@1094	3199 if (ctx->app->check_mime(s))
adamc@770	3200 return s;
adamc@770	3201 else
adamc@770	3202 return NULL;
adamc@741	3203 }
adamc@741	3204
adamc@734	3205 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3206 return s ? s : "";
adamc@734	3207 }
adamc@734	3208
adamc@734	3209 extern int uw_hash_blocksize;
adamc@734	3210
adamc@734	3211 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3212 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3213 int i;
adamc@734	3214
adamc@734	3215 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3216 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3217
adamc@734	3218 return r;
adamc@734	3219 }
adamc@734	3220
adamc@734	3221 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3222 return ctx->app->cookie_sig(ctx);
adamc@734	3223 }
adamc@737	3224
adamc@737	3225 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3226 return f.name;
adamc@737	3227 }
adamc@737	3228
adamc@740	3229 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3230 return f.type;
adamc@740	3231 }
adamc@740	3232
adamc@745	3233 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3234 return b.size;
adamc@745	3235 }
adamc@745	3236
adamc@1119	3237 uw_Basis_blob uw_Basis_textBlob(uw_context ctx, uw_Basis_string s) {
adamc@1119	3238 uw_Basis_blob b = {strlen(s), s};
adamc@1119	3239
adamc@1119	3240 return b;
adamc@1119	3241 }
adamc@1119	3242
adamc@737	3243 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3244 return f.data;
adamc@737	3245 }
adamc@741	3246
adam@1347	3247 uw_Basis_string uw_Basis_postType(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3248 return pb.type;
adam@1347	3249 }
adam@1347	3250
adam@1347	3251 uw_Basis_string uw_Basis_postData(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3252 return pb.data;
adam@1347	3253 }
adam@1347	3254
adamc@741	3255 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3256 cleanup *cl;
adamc@741	3257 int len;
adamc@741	3258
adamc@1065	3259 ctx->returning_indirectly = 1;
adamc@741	3260 buf_reset(&ctx->outHeaders);
adamc@741	3261 buf_reset(&ctx->page);
adamc@741	3262
adamc@856	3263 uw_write_header(ctx, on_success);
adamc@856	3264 uw_write_header(ctx, "Content-Type: ");
adamc@741	3265 uw_write_header(ctx, mimeType);
adamc@741	3266 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@1113	3267 ctx_buf_check(ctx, "headers", &ctx->outHeaders, INTS_MAX);
adamc@1134	3268 sprintf(ctx->outHeaders.front, "%lu%n", (unsigned long)b.size, &len);
adamc@741	3269 ctx->outHeaders.front += len;
adamc@1066	3270 uw_write_header(ctx, "\r\n");
adamc@741	3271
adamc@1113	3272 ctx_buf_append(ctx, "page", &ctx->page, b.data, b.size);
adamc@741	3273
adamc@741	3274 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3275 cl->func(cl->arg);
adamc@741	3276
adamc@741	3277 ctx->cleanup_front = ctx->cleanup;
adamc@741	3278
adamc@1065	3279 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3280 }
adamc@1065	3281
adamc@1065	3282 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3283 cleanup *cl;
adamc@1066	3284 char *s;
adamc@1065	3285
adamc@1065	3286 ctx->returning_indirectly = 1;
adamc@1066	3287 buf_reset(&ctx->page);
adamc@1113	3288 ctx_buf_check(ctx, "page", &ctx->page, buf_used(&ctx->outHeaders)+1);
adamc@1066	3289 memcpy(ctx->page.start, ctx->outHeaders.start, buf_used(&ctx->outHeaders));
adamc@1066	3290 ctx->page.start[buf_used(&ctx->outHeaders)] = 0;
adamc@1065	3291 buf_reset(&ctx->outHeaders);
adamc@1065	3292
adamc@1065	3293 uw_write_header(ctx, on_redirect);
adamc@1066	3294
adamc@1066	3295 s = strchr(ctx->page.start, '\n');
adamc@1066	3296 if (s) {
adamc@1066	3297 char *s2;
adamc@1134	3298 for (++s; (s2 = strchr(s, '\n')); s = s2+1) {
adamc@1066	3299 *s2 = 0;
adamc@1066	3300 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3301 uw_write_header(ctx, s);
adamc@1066	3302 uw_write_header(ctx, "\n");
adamc@1066	3303 }
adamc@1066	3304 }
adamc@1066	3305 }
adamc@1066	3306
adamc@1065	3307 uw_write_header(ctx, "Location: ");
adamc@1065	3308 uw_write_header(ctx, url);
adamc@1065	3309 uw_write_header(ctx, "\r\n\r\n");
adamc@1065	3310
adamc@1065	3311 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3312 cl->func(cl->arg);
adamc@1065	3313
adamc@1065	3314 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3315
adamc@1065	3316 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3317 }
adamc@874	3318
adamc@874	3319 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3320 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3321
adamc@874	3322 for (; *s; ++s) {
adamc@874	3323 if (s[0] == '\'') {
adamc@874	3324 *r++ = '\'';
adamc@874	3325 for (++s; *s; ++s) {
adamc@874	3326 if (s[0] == '\'') {
adamc@874	3327 *r++ = '\'';
adamc@874	3328 break;
adamc@874	3329 } else if (s[0] == '\\') {
adamc@874	3330 if (s[1] == '\\') {
adamc@874	3331 *r++ = '\\';
adamc@874	3332 *r++ = '\\';
adamc@874	3333 ++s;
adamc@874	3334 } else if (s[1] == '\'') {
adamc@874	3335 *r++ = '\\';
adamc@874	3336 *r++ = '\'';
adamc@874	3337 ++s;
adamc@874	3338 } else
adamc@874	3339 *r++ = '\'';
adamc@874	3340 } else
adamc@874	3341 *r++ = s[0];
adamc@874	3342 }
adamc@874	3343 if (*s == 0) break;
adamc@874	3344 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3345 ++s;
adamc@874	3346 else
adamc@874	3347 *r++ = s[0];
adamc@874	3348 }
adamc@874	3349
adamc@874	3350 return r;
adamc@874	3351 }
adamc@874	3352
adamc@922	3353 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3354 va_list ap;
adamc@922	3355 size_t len = 1;
adamc@922	3356 char s, r, *s2;
adamc@922	3357
adamc@922	3358 va_start(ap, ctx);
adamc@922	3359 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3360 len += strlen(s);
adamc@922	3361 va_end(ap);
adamc@922	3362
adamc@922	3363 r = uw_malloc(ctx, len);
adamc@922	3364 va_start(ap, ctx);
adamc@922	3365 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3366 while (*s)
adamc@922	3367 s2++ = s++;
adamc@922	3368 va_end(ap);
adamc@922	3369 *s2 = 0;
adamc@922	3370
adamc@922	3371 return r;
adamc@922	3372 }
adamc@1006	3373
adamc@1050	3374 const uw_Basis_time minTime = 0;
adamc@1050	3375
adamc@1006	3376 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3377 return time(NULL);
adamc@1006	3378 }
adamc@1061	3379
adamc@1138	3380 uw_Basis_time uw_Basis_minusSeconds(uw_context ctx, uw_Basis_time tm, uw_Basis_int n) {
adamc@1138	3381 return tm - n;
adamc@1138	3382 }
adamc@1138	3383
adamc@1061	3384 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3385 int i;
adamc@1061	3386
adamc@1061	3387 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3388 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3389 return ctx->globals[i].data;
adamc@1061	3390
adamc@1061	3391 return NULL;
adamc@1061	3392 }
adamc@1061	3393
adamc@1113	3394 size_t uw_globals_max = SIZE_MAX;
adamc@1113	3395
adamc@1061	3396 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3397 int i;
adamc@1061	3398
adamc@1061	3399 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3400 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3401 if (ctx->globals[i].free)
adamc@1061	3402 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3403 ctx->globals[i].data = data;
adamc@1061	3404 ctx->globals[i].free = free;
adamc@1061	3405 return;
adamc@1061	3406 }
adamc@1089	3407
adamc@1113	3408 if (ctx->n_globals+1 > uw_globals_max)
adamc@1113	3409 uw_error(ctx, FATAL, "Exceeded limit on number of globals");
adamc@1113	3410
adamc@1061	3411 ++ctx->n_globals;
adamc@1061	3412 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3413 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3414 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3415 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3416 }
adamc@1061	3417
adamc@1061	3418 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1153	3419 return !!isalnum((int)c);
adamc@1061	3420 }
adamc@1061	3421
adamc@1061	3422 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1153	3423 return !!isalpha((int)c);
adamc@1061	3424 }
adamc@1061	3425
adamc@1061	3426 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1153	3427 return !!isblank((int)c);
adamc@1061	3428 }
adamc@1061	3429
adamc@1061	3430 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1153	3431 return !!iscntrl((int)c);
adamc@1061	3432 }
adamc@1061	3433
adamc@1061	3434 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3435 return !!isdigit((int)c);
adamc@1061	3436 }
adamc@1061	3437
adamc@1061	3438 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1153	3439 return !!isgraph((int)c);
adamc@1061	3440 }
adamc@1061	3441
adamc@1061	3442 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3443 return !!islower((int)c);
adamc@1061	3444 }
adamc@1061	3445
adamc@1061	3446 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1153	3447 return !!isprint((int)c);
adamc@1061	3448 }
adamc@1061	3449
adamc@1061	3450 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1153	3451 return !!ispunct((int)c);
adamc@1061	3452 }
adamc@1061	3453
adamc@1061	3454 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1153	3455 return !!isspace((int)c);
adamc@1061	3456 }
adamc@1063	3457
adamc@1061	3458 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3459 return !!isupper((int)c);
adamc@1061	3460 }
adamc@1061	3461
adamc@1061	3462 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1153	3463 return !!isxdigit((int)c);
adamc@1061	3464 }
adamc@1061	3465
adamc@1061	3466 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1153	3467 return tolower((int)c);
adamc@1061	3468 }
adamc@1061	3469
adamc@1061	3470 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1153	3471 return toupper((int)c);
adamc@1061	3472 }
adamc@1066	3473
adamc@1128	3474 uw_Basis_int uw_Basis_ord(uw_context ctx, uw_Basis_char c) {
adamc@1128	3475 return (unsigned char)c;
adamc@1128	3476 }
adamc@1128	3477
adamc@1128	3478 uw_Basis_char uw_Basis_chr(uw_context ctx, uw_Basis_int n) {
adamc@1128	3479 return n;
adamc@1128	3480 }
adamc@1128	3481
adamc@1066	3482 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3483 return ctx->current_url;
adamc@1066	3484 }
adamc@1066	3485
adamc@1066	3486 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3487 ctx->current_url = s;
adamc@1066	3488 }
adamc@1114	3489
adamc@1114	3490 void uw_set_deadline(uw_context ctx, int n) {
adamc@1114	3491 ctx->deadline = n;
adamc@1114	3492 }
adamc@1114	3493
adamc@1114	3494 void uw_check_deadline(uw_context ctx) {
adamc@1114	3495 if (uw_time > ctx->deadline)
adamc@1114	3496 uw_error(ctx, FATAL, "Maximum running time exceeded");
adamc@1114	3497 }
adamc@1115	3498
adamc@1115	3499 size_t uw_database_max = SIZE_MAX;
adamc@1120	3500
adamc@1120	3501 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
adam@1334	3502 if (ctx->log_debug)
adam@1334	3503 ctx->log_debug(ctx->logger_data, "%s\n", s);
adam@1334	3504 else
adam@1334	3505 fprintf(stderr, "%s\n", s);
adamc@1120	3506 return uw_unit_v;
adamc@1120	3507 }
adamc@1250	3508
adamc@1250	3509 uw_Basis_int uw_Basis_rand(uw_context ctx) {
adamc@1250	3510 uw_Basis_int n = abs(rand());
adamc@1250	3511 return n;
adamc@1250	3512 }
adam@1347	3513
adam@1347	3514 void uw_noPostBody(uw_context ctx) {
adam@1347	3515 ctx->hasPostBody = 0;
adam@1347	3516 }
adam@1347	3517
adam@1347	3518 void uw_postBody(uw_context ctx, uw_Basis_postBody pb) {
adam@1347	3519 ctx->hasPostBody = 1;
adam@1347	3520 ctx->postBody = pb;
adam@1347	3521 }
adam@1347	3522
adam@1347	3523 int uw_hasPostBody(uw_context ctx) {
adam@1347	3524 return ctx->hasPostBody;
adam@1347	3525 }
adam@1347	3526
adam@1347	3527 uw_Basis_postBody uw_getPostBody(uw_context ctx) {
adam@1347	3528 if (ctx->hasPostBody)
adam@1347	3529 return ctx->postBody;
adam@1347	3530 else
adam@1347	3531 uw_error(ctx, FATAL, "Asked for POST body when none exists");
adam@1347	3532 }
adam@1349	3533
adam@1349	3534 failure_kind uw_runCallback(uw_context ctx, void (*callback)(uw_context)) {
adam@1349	3535 int r = setjmp(ctx->jmp_buf);
adam@1349	3536
adam@1349	3537 if (ctx->app->db_begin(ctx))
adam@1349	3538 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adam@1349	3539
adam@1349	3540 if (r == 0) {
adam@1349	3541 callback(ctx);
adam@1349	3542 uw_commit(ctx);
adam@1349	3543 }
adam@1349	3544 else
adam@1349	3545 uw_rollback(ctx, 0);
adam@1349	3546
adam@1349	3547 return r;
adam@1349	3548 }

Mercurial > urweb

annotate src/c/urweb.c @ 1353:e9cf053108ed