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

annotate src/c/urweb.c @ 1418:22674ac8ebe6

Proper error handling for periodic tasks

author	Adam Chlipala <adam@chlipala.net>
date	Sun, 23 Jan 2011 18:16:30 -0500
parents	d0786ff9bb22
children	eecbffc2b907

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

Mercurial > urweb

annotate src/c/urweb.c @ 1418:22674ac8ebe6