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

annotate src/c/urweb.c @ 1407:7d963b8019e6

Some fixes for tasks and onError handlers

author	Adam Chlipala <adam@chlipala.net>
date	Thu, 20 Jan 2011 15:11:45 -0500
parents	82b204f20026
children	56ba9c442a2d

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

Mercurial > urweb

annotate src/c/urweb.c @ 1407:7d963b8019e6