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

annotate src/c/urweb.c @ 1117:31ef567fa772

Clear script_header in uw_reset()

author	Adam Chlipala <adamc@hcoop.net>
date	Tue, 05 Jan 2010 13:30:27 -0500
parents	150465f2895c
children	87b0a9d08e73

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

Mercurial > urweb

annotate src/c/urweb.c @ 1117:31ef567fa772