src/http-header-glue.c

   1 #include "first.h"
   2
   3 #include "base.h"
   4 #include "array.h"
   5 #include "buffer.h"
   6 #include "log.h"
   7 #include "etag.h"
   8 #include "http_chunk.h"
   9 #include "response.h"
  10 #include "stat_cache.h"
  11
  12 #include <string.h>
  13 #include <errno.h>
  14
  15 #include <time.h>
  16
  17 /*
  18  * This was 'borrowed' from tcpdump.
  19  *
  20  *
  21  * This is fun.
  22  *
  23  * In older BSD systems, socket addresses were fixed-length, and
  24  * "sizeof (struct sockaddr)" gave the size of the structure.
  25  * All addresses fit within a "struct sockaddr".
  26  *
  27  * In newer BSD systems, the socket address is variable-length, and
  28  * there's an "sa_len" field giving the length of the structure;
  29  * this allows socket addresses to be longer than 2 bytes of family
  30  * and 14 bytes of data.
  31  *
  32  * Some commercial UNIXes use the old BSD scheme, some use the RFC 2553
  33  * variant of the old BSD scheme (with "struct sockaddr_storage" rather
  34  * than "struct sockaddr"), and some use the new BSD scheme.
  35  *
  36  * Some versions of GNU libc use neither scheme, but has an "SA_LEN()"
  37  * macro that determines the size based on the address family.  Other
  38  * versions don't have "SA_LEN()" (as it was in drafts of RFC 2553
  39  * but not in the final version).  On the latter systems, we explicitly
  40  * check the AF_ type to determine the length; we assume that on
  41  * all those systems we have "struct sockaddr_storage".
  42  */
  43
  44 #ifdef HAVE_IPV6
  45 # ifndef SA_LEN
  46 #  ifdef HAVE_SOCKADDR_SA_LEN
  47 #   define SA_LEN(addr)   ((addr)->sa_len)
  48 #  else /* HAVE_SOCKADDR_SA_LEN */
  49 #   ifdef HAVE_STRUCT_SOCKADDR_STORAGE
  50 static size_t get_sa_len(const struct sockaddr *addr) {
  51         switch (addr->sa_family) {
  52
  53 #    ifdef AF_INET
  54         case AF_INET:
  55                 return (sizeof (struct sockaddr_in));
  56 #    endif
  57
  58 #    ifdef AF_INET6
  59         case AF_INET6:
  60                 return (sizeof (struct sockaddr_in6));
  61 #    endif
  62
  63         default:
  64                 return (sizeof (struct sockaddr));
  65
  66         }
  67 }
  68 #    define SA_LEN(addr)   (get_sa_len(addr))
  69 #   else /* HAVE_SOCKADDR_STORAGE */
  70 #    define SA_LEN(addr)   (sizeof (struct sockaddr))
  71 #   endif /* HAVE_SOCKADDR_STORAGE */
  72 #  endif /* HAVE_SOCKADDR_SA_LEN */
  73 # endif /* SA_LEN */
  74 #endif
  75
  76
  77
  78
  79 int response_header_insert(server *srv, connection *con, const char *key, size_t keylen, const char *value, size_t vallen) {
  80         data_string *ds;
  81
  82         UNUSED(srv);
  83
  84         if (NULL == (ds = (data_string *)array_get_unused_element(con->response.headers, TYPE_STRING))) {
  85                 ds = data_response_init();
  86         }
  87         buffer_copy_string_len(ds->key, key, keylen);
  88         buffer_copy_string_len(ds->value, value, vallen);
  89
  90         array_insert_unique(con->response.headers, (data_unset *)ds);
  91
  92         return 0;
  93 }
  94
  95 int response_header_overwrite(server *srv, connection *con, const char *key, size_t keylen, const char *value, size_t vallen) {
  96         data_string *ds;
  97
  98         UNUSED(srv);
  99
 100         /* if there already is a key by this name overwrite the value */
 101         if (NULL != (ds = (data_string *)array_get_element(con->response.headers, key))) {
 102                 buffer_copy_string(ds->value, value);
 103
 104                 return 0;
 105         }
 106
 107         return response_header_insert(srv, con, key, keylen, value, vallen);
 108 }
 109
 110 int response_header_append(server *srv, connection *con, const char *key, size_t keylen, const char *value, size_t vallen) {
 111         data_string *ds;
 112
 113         UNUSED(srv);
 114
 115         /* if there already is a key by this name append the value */
 116         if (NULL != (ds = (data_string *)array_get_element(con->response.headers, key))) {
 117                 buffer_append_string_len(ds->value, CONST_STR_LEN(", "));
 118                 buffer_append_string_len(ds->value, value, vallen);
 119                 return 0;
 120         }
 121
 122         return response_header_insert(srv, con, key, keylen, value, vallen);
 123 }
 124
 125 int http_response_redirect_to_directory(server *srv, connection *con) {
 126         buffer *o;
 127
 128         o = buffer_init();
 129
 130         buffer_copy_buffer(o, con->uri.scheme);
 131         buffer_append_string_len(o, CONST_STR_LEN("://"));
 132         if (!buffer_is_empty(con->uri.authority)) {
 133                 buffer_append_string_buffer(o, con->uri.authority);
 134         } else {
 135                 /* get the name of the currently connected socket */
 136                 struct hostent *he;
 137 #ifdef HAVE_IPV6
 138                 char hbuf[256];
 139 #endif
 140                 sock_addr our_addr;
 141                 socklen_t our_addr_len;
 142
 143                 our_addr_len = sizeof(our_addr);
 144
 145                 if (-1 == getsockname(con->fd, (struct sockaddr *)&our_addr, &our_addr_len)
 146                     || our_addr_len > sizeof(our_addr)) {
 147                         con->http_status = 500;
 148
 149                         log_error_write(srv, __FILE__, __LINE__, "ss",
 150                                         "can't get sockname", strerror(errno));
 151
 152                         buffer_free(o);
 153                         return 0;
 154                 }
 155
 156
 157                 /* Lookup name: secondly try to get hostname for bind address */
 158                 switch(our_addr.plain.sa_family) {
 159 #ifdef HAVE_IPV6
 160                 case AF_INET6:
 161                         if (0 != getnameinfo((const struct sockaddr *)(&our_addr.ipv6),
 162                                              SA_LEN((const struct sockaddr *)&our_addr.ipv6),
 163                                              hbuf, sizeof(hbuf), NULL, 0, 0)) {
 164
 165                                 char dst[INET6_ADDRSTRLEN];
 166
 167                                 log_error_write(srv, __FILE__, __LINE__,
 168                                                 "SSS", "NOTICE: getnameinfo failed: ",
 169                                                 strerror(errno), ", using ip-address instead");
 170
 171                                 buffer_append_string(o,
 172                                                      inet_ntop(AF_INET6, (char *)&our_addr.ipv6.sin6_addr,
 173                                                                dst, sizeof(dst)));
 174                         } else {
 175                                 buffer_append_string(o, hbuf);
 176                         }
 177                         break;
 178 #endif
 179                 case AF_INET:
 180                         if (NULL == (he = gethostbyaddr((char *)&our_addr.ipv4.sin_addr, sizeof(struct in_addr), AF_INET))) {
 181                                 log_error_write(srv, __FILE__, __LINE__,
 182                                                 "SdS", "NOTICE: gethostbyaddr failed: ",
 183                                                 h_errno, ", using ip-address instead");
 184
 185                                 buffer_append_string(o, inet_ntoa(our_addr.ipv4.sin_addr));
 186                         } else {
 187                                 buffer_append_string(o, he->h_name);
 188                         }
 189                         break;
 190                 default:
 191                         log_error_write(srv, __FILE__, __LINE__,
 192                                         "S", "ERROR: unsupported address-type");
 193
 194                         buffer_free(o);
 195                         return -1;
 196                 }
 197
 198                 {
 199                         unsigned short default_port = 80;
 200                         if (buffer_is_equal_caseless_string(con->uri.scheme, CONST_STR_LEN("https"))) {
 201                                 default_port = 443;
 202                         }
 203                         if (default_port != srv->srvconf.port) {
 204                                 buffer_append_string_len(o, CONST_STR_LEN(":"));
 205                                 buffer_append_int(o, srv->srvconf.port);
 206                         }
 207                 }
 208         }
 209         buffer_append_string_encoded(o, CONST_BUF_LEN(con->uri.path), ENCODING_REL_URI);
 210         buffer_append_string_len(o, CONST_STR_LEN("/"));
 211         if (!buffer_string_is_empty(con->uri.query)) {
 212                 buffer_append_string_len(o, CONST_STR_LEN("?"));
 213                 buffer_append_string_buffer(o, con->uri.query);
 214         }
 215
 216         response_header_insert(srv, con, CONST_STR_LEN("Location"), CONST_BUF_LEN(o));
 217
 218         con->http_status = 301;
 219         con->file_finished = 1;
 220
 221         buffer_free(o);
 222
 223         return 0;
 224 }
 225
 226 buffer * strftime_cache_get(server *srv, time_t last_mod) {
 227         struct tm *tm;
 228         size_t i;
 229
 230         for (i = 0; i < FILE_CACHE_MAX; i++) {
 231                 /* found cache-entry */
 232                 if (srv->mtime_cache[i].mtime == last_mod) return srv->mtime_cache[i].str;
 233
 234                 /* found empty slot */
 235                 if (srv->mtime_cache[i].mtime == 0) break;
 236         }
 237
 238         if (i == FILE_CACHE_MAX) {
 239                 i = 0;
 240         }
 241
 242         srv->mtime_cache[i].mtime = last_mod;
 243         buffer_string_prepare_copy(srv->mtime_cache[i].str, 1023);
 244         tm = gmtime(&(srv->mtime_cache[i].mtime));
 245         buffer_append_strftime(srv->mtime_cache[i].str, "%a, %d %b %Y %H:%M:%S GMT", tm);
 246
 247         return srv->mtime_cache[i].str;
 248 }
 249
 250
 251 int http_response_handle_cachable(server *srv, connection *con, buffer *mtime) {
 252         int head_or_get =
 253                 (  HTTP_METHOD_GET  == con->request.http_method
 254                 || HTTP_METHOD_HEAD == con->request.http_method);
 255         UNUSED(srv);
 256
 257         /*
 258          * 14.26 If-None-Match
 259          *    [...]
 260          *    If none of the entity tags match, then the server MAY perform the
 261          *    requested method as if the If-None-Match header field did not exist,
 262          *    but MUST also ignore any If-Modified-Since header field(s) in the
 263          *    request. That is, if no entity tags match, then the server MUST NOT
 264          *    return a 304 (Not Modified) response.
 265          */
 266
 267         if (con->request.http_if_none_match) {
 268                 /* use strong etag checking for now: weak comparison must not be used
 269                  * for ranged requests
 270                  */
 271                 if (etag_is_equal(con->physical.etag, con->request.http_if_none_match, 0)) {
 272                         if (head_or_get) {
 273                                 con->http_status = 304;
 274                                 return HANDLER_FINISHED;
 275                         } else {
 276                                 con->http_status = 412;
 277                                 con->mode = DIRECT;
 278                                 return HANDLER_FINISHED;
 279                         }
 280                 }
 281         } else if (con->request.http_if_modified_since && head_or_get) {
 282                 /* last-modified handling */
 283                 size_t used_len;
 284                 char *semicolon;
 285
 286                 if (NULL == (semicolon = strchr(con->request.http_if_modified_since, ';'))) {
 287                         used_len = strlen(con->request.http_if_modified_since);
 288                 } else {
 289                         used_len = semicolon - con->request.http_if_modified_since;
 290                 }
 291
 292                 if (0 == strncmp(con->request.http_if_modified_since, mtime->ptr, used_len)) {
 293                         if ('\0' == mtime->ptr[used_len]) con->http_status = 304;
 294                         return HANDLER_FINISHED;
 295                 } else {
 296                         char buf[sizeof("Sat, 23 Jul 2005 21:20:01 GMT")];
 297                         time_t t_header, t_file;
 298                         struct tm tm;
 299
 300                         /* convert to timestamp */
 301                         if (used_len >= sizeof(buf)) return HANDLER_GO_ON;
 302
 303                         strncpy(buf, con->request.http_if_modified_since, used_len);
 304                         buf[used_len] = '\0';
 305
 306                         if (NULL == strptime(buf, "%a, %d %b %Y %H:%M:%S GMT", &tm)) {
 307                                 /**
 308                                  * parsing failed, let's get out of here
 309                                  */
 310                                 return HANDLER_GO_ON;
 311                         }
 312                         tm.tm_isdst = 0;
 313                         t_header = mktime(&tm);
 314
 315                         strptime(mtime->ptr, "%a, %d %b %Y %H:%M:%S GMT", &tm);
 316                         tm.tm_isdst = 0;
 317                         t_file = mktime(&tm);
 318
 319                         if (t_file > t_header) return HANDLER_GO_ON;
 320
 321                         con->http_status = 304;
 322                         return HANDLER_FINISHED;
 323                 }
 324         }
 325
 326         return HANDLER_GO_ON;
 327 }
 328
 329
 330 static int http_response_parse_range(server *srv, connection *con, buffer *path, stat_cache_entry *sce) {
 331         int multipart = 0;
 332         int error;
 333         off_t start, end;
 334         const char *s, *minus;
 335         char *boundary = "fkj49sn38dcn3";
 336         data_string *ds;
 337         buffer *content_type = NULL;
 338
 339         start = 0;
 340         end = sce->st.st_size - 1;
 341
 342         con->response.content_length = 0;
 343
 344         if (NULL != (ds = (data_string *)array_get_element(con->response.headers, "Content-Type"))) {
 345                 content_type = ds->value;
 346         }
 347
 348         for (s = con->request.http_range, error = 0;
 349              !error && *s && NULL != (minus = strchr(s, '-')); ) {
 350                 char *err;
 351                 off_t la, le;
 352
 353                 if (s == minus) {
 354                         /* -<stop> */
 355
 356                         le = strtoll(s, &err, 10);
 357
 358                         if (le == 0) {
 359                                 /* RFC 2616 - 14.35.1 */
 360
 361                                 con->http_status = 416;
 362                                 error = 1;
 363                         } else if (*err == '\0') {
 364                                 /* end */
 365                                 s = err;
 366
 367                                 end = sce->st.st_size - 1;
 368                                 start = sce->st.st_size + le;
 369                         } else if (*err == ',') {
 370                                 multipart = 1;
 371                                 s = err + 1;
 372
 373                                 end = sce->st.st_size - 1;
 374                                 start = sce->st.st_size + le;
 375                         } else {
 376                                 error = 1;
 377                         }
 378
 379                 } else if (*(minus+1) == '\0' || *(minus+1) == ',') {
 380                         /* <start>- */
 381
 382                         la = strtoll(s, &err, 10);
 383
 384                         if (err == minus) {
 385                                 /* ok */
 386
 387                                 if (*(err + 1) == '\0') {
 388                                         s = err + 1;
 389
 390                                         end = sce->st.st_size - 1;
 391                                         start = la;
 392
 393                                 } else if (*(err + 1) == ',') {
 394                                         multipart = 1;
 395                                         s = err + 2;
 396
 397                                         end = sce->st.st_size - 1;
 398                                         start = la;
 399                                 } else {
 400                                         error = 1;
 401                                 }
 402                         } else {
 403                                 /* error */
 404                                 error = 1;
 405                         }
 406                 } else {
 407                         /* <start>-<stop> */
 408
 409                         la = strtoll(s, &err, 10);
 410
 411                         if (err == minus) {
 412                                 le = strtoll(minus+1, &err, 10);
 413
 414                                 /* RFC 2616 - 14.35.1 */
 415                                 if (la > le) {
 416                                         error = 1;
 417                                 }
 418
 419                                 if (*err == '\0') {
 420                                         /* ok, end*/
 421                                         s = err;
 422
 423                                         end = le;
 424                                         start = la;
 425                                 } else if (*err == ',') {
 426                                         multipart = 1;
 427                                         s = err + 1;
 428
 429                                         end = le;
 430                                         start = la;
 431                                 } else {
 432                                         /* error */
 433
 434                                         error = 1;
 435                                 }
 436                         } else {
 437                                 /* error */
 438
 439                                 error = 1;
 440                         }
 441                 }
 442
 443                 if (!error) {
 444                         if (start < 0) start = 0;
 445
 446                         /* RFC 2616 - 14.35.1 */
 447                         if (end > sce->st.st_size - 1) end = sce->st.st_size - 1;
 448
 449                         if (start > sce->st.st_size - 1) {
 450                                 error = 1;
 451
 452                                 con->http_status = 416;
 453                         }
 454                 }
 455
 456                 if (!error) {
 457                         if (multipart) {
 458                                 /* write boundary-header */
 459                                 buffer *b = buffer_init();
 460
 461                                 buffer_copy_string_len(b, CONST_STR_LEN("\r\n--"));
 462                                 buffer_append_string(b, boundary);
 463
 464                                 /* write Content-Range */
 465                                 buffer_append_string_len(b, CONST_STR_LEN("\r\nContent-Range: bytes "));
 466                                 buffer_append_int(b, start);
 467                                 buffer_append_string_len(b, CONST_STR_LEN("-"));
 468                                 buffer_append_int(b, end);
 469                                 buffer_append_string_len(b, CONST_STR_LEN("/"));
 470                                 buffer_append_int(b, sce->st.st_size);
 471
 472                                 buffer_append_string_len(b, CONST_STR_LEN("\r\nContent-Type: "));
 473                                 buffer_append_string_buffer(b, content_type);
 474
 475                                 /* write END-OF-HEADER */
 476                                 buffer_append_string_len(b, CONST_STR_LEN("\r\n\r\n"));
 477
 478                                 con->response.content_length += buffer_string_length(b);
 479                                 chunkqueue_append_buffer(con->write_queue, b);
 480                                 buffer_free(b);
 481                         }
 482
 483                         chunkqueue_append_file(con->write_queue, path, start, end - start + 1);
 484                         con->response.content_length += end - start + 1;
 485                 }
 486         }
 487
 488         /* something went wrong */
 489         if (error) return -1;
 490
 491         if (multipart) {
 492                 /* add boundary end */
 493                 buffer *b = buffer_init();
 494
 495                 buffer_copy_string_len(b, "\r\n--", 4);
 496                 buffer_append_string(b, boundary);
 497                 buffer_append_string_len(b, "--\r\n", 4);
 498
 499                 con->response.content_length += buffer_string_length(b);
 500                 chunkqueue_append_buffer(con->write_queue, b);
 501                 buffer_free(b);
 502
 503                 /* set header-fields */
 504
 505                 buffer_copy_string_len(srv->tmp_buf, CONST_STR_LEN("multipart/byteranges; boundary="));
 506                 buffer_append_string(srv->tmp_buf, boundary);
 507
 508                 /* overwrite content-type */
 509                 response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(srv->tmp_buf));
 510         } else {
 511                 /* add Content-Range-header */
 512
 513                 buffer_copy_string_len(srv->tmp_buf, CONST_STR_LEN("bytes "));
 514                 buffer_append_int(srv->tmp_buf, start);
 515                 buffer_append_string_len(srv->tmp_buf, CONST_STR_LEN("-"));
 516                 buffer_append_int(srv->tmp_buf, end);
 517                 buffer_append_string_len(srv->tmp_buf, CONST_STR_LEN("/"));
 518                 buffer_append_int(srv->tmp_buf, sce->st.st_size);
 519
 520                 response_header_insert(srv, con, CONST_STR_LEN("Content-Range"), CONST_BUF_LEN(srv->tmp_buf));
 521         }
 522
 523         /* ok, the file is set-up */
 524         return 0;
 525 }
 526
 527
 528 void http_response_send_file (server *srv, connection *con, buffer *path) {
 529         stat_cache_entry *sce = NULL;
 530         buffer *mtime = NULL;
 531         data_string *ds;
 532         int allow_caching = 1;
 533
 534         if (HANDLER_ERROR == stat_cache_get_entry(srv, con, path, &sce)) {
 535                 con->http_status = (errno == ENOENT) ? 404 : 403;
 536
 537                 log_error_write(srv, __FILE__, __LINE__, "sbsb",
 538                                 "not a regular file:", con->uri.path,
 539                                 "->", path);
 540
 541                 return;
 542         }
 543
 544         /* we only handline regular files */
 545 #ifdef HAVE_LSTAT
 546         if ((sce->is_symlink == 1) && !con->conf.follow_symlink) {
 547                 con->http_status = 403;
 548
 549                 if (con->conf.log_request_handling) {
 550                         log_error_write(srv, __FILE__, __LINE__,  "s",  "-- access denied due symlink restriction");
 551                         log_error_write(srv, __FILE__, __LINE__,  "sb", "Path         :", path);
 552                 }
 553
 554                 return;
 555         }
 556 #endif
 557         if (!S_ISREG(sce->st.st_mode)) {
 558                 con->http_status = 403;
 559
 560                 if (con->conf.log_file_not_found) {
 561                         log_error_write(srv, __FILE__, __LINE__, "sbsb",
 562                                         "not a regular file:", con->uri.path,
 563                                         "->", sce->name);
 564                 }
 565
 566                 return;
 567         }
 568
 569         /* mod_compress might set several data directly, don't overwrite them */
 570
 571         /* set response content-type, if not set already */
 572
 573         if (NULL == array_get_element(con->response.headers, "Content-Type")) {
 574                 if (buffer_string_is_empty(sce->content_type)) {
 575                         /* we are setting application/octet-stream, but also announce that
 576                          * this header field might change in the seconds few requests
 577                          *
 578                          * This should fix the aggressive caching of FF and the script download
 579                          * seen by the first installations
 580                          */
 581                         response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_STR_LEN("application/octet-stream"));
 582
 583                         allow_caching = 0;
 584                 } else {
 585                         response_header_overwrite(srv, con, CONST_STR_LEN("Content-Type"), CONST_BUF_LEN(sce->content_type));
 586                 }
 587         }
 588
 589         if (con->conf.range_requests) {
 590                 response_header_overwrite(srv, con, CONST_STR_LEN("Accept-Ranges"), CONST_STR_LEN("bytes"));
 591         }
 592
 593         if (allow_caching) {
 594                 if (con->etag_flags != 0 && !buffer_string_is_empty(sce->etag)) {
 595                         if (NULL == array_get_element(con->response.headers, "ETag")) {
 596                                 /* generate e-tag */
 597                                 etag_mutate(con->physical.etag, sce->etag);
 598
 599                                 response_header_overwrite(srv, con, CONST_STR_LEN("ETag"), CONST_BUF_LEN(con->physical.etag));
 600                         }
 601                 }
 602
 603                 /* prepare header */
 604                 if (NULL == (ds = (data_string *)array_get_element(con->response.headers, "Last-Modified"))) {
 605                         mtime = strftime_cache_get(srv, sce->st.st_mtime);
 606                         response_header_overwrite(srv, con, CONST_STR_LEN("Last-Modified"), CONST_BUF_LEN(mtime));
 607                 } else {
 608                         mtime = ds->value;
 609                 }
 610
 611                 if (HANDLER_FINISHED == http_response_handle_cachable(srv, con, mtime)) {
 612                         return;
 613                 }
 614         }
 615
 616         if (con->request.http_range && con->conf.range_requests && con->http_status < 300) {
 617                 int do_range_request = 1;
 618                 /* check if we have a conditional GET */
 619
 620                 if (NULL != (ds = (data_string *)array_get_element(con->request.headers, "If-Range"))) {
 621                         /* if the value is the same as our ETag, we do a Range-request,
 622                          * otherwise a full 200 */
 623
 624                         if (ds->value->ptr[0] == '"') {
 625                                 /**
 626                                  * client wants a ETag
 627                                  */
 628                                 if (!con->physical.etag) {
 629                                         do_range_request = 0;
 630                                 } else if (!buffer_is_equal(ds->value, con->physical.etag)) {
 631                                         do_range_request = 0;
 632                                 }
 633                         } else if (!mtime) {
 634                                 /**
 635                                  * we don't have a Last-Modified and can match the If-Range:
 636                                  *
 637                                  * sending all
 638                                  */
 639                                 do_range_request = 0;
 640                         } else if (!buffer_is_equal(ds->value, mtime)) {
 641                                 do_range_request = 0;
 642                         }
 643                 }
 644
 645                 if (do_range_request) {
 646                         /* content prepared, I'm done */
 647                         con->file_finished = 1;
 648
 649                         if (0 == http_response_parse_range(srv, con, path, sce)) {
 650                                 con->http_status = 206;
 651                         }
 652                         return;
 653                 }
 654         }
 655
 656         /* if we are still here, prepare body */
 657
 658         /* we add it here for all requests
 659          * the HEAD request will drop it afterwards again
 660          */
 661         if (0 == sce->st.st_size || 0 == http_chunk_append_file(srv, con, path)) {
 662                 con->http_status = 200;
 663                 con->file_finished = 1;
 664         } else {
 665                 con->http_status = 403;
 666         }
 667 }