| 1 |
#include "freehttpd.h" |
| 2 |
#include "http_error.h" |
| 3 |
#include "log.h" |
| 4 |
#include "protocol.h" |
| 5 |
#include "request.h" |
| 6 |
#include "response.h" |
| 7 |
|
| 8 |
#include <arpa/inet.h> |
| 9 |
#include <dirent.h> |
| 10 |
#include <errno.h> |
| 11 |
#include <magic.h> |
| 12 |
#include <stdarg.h> |
| 13 |
#include <stdbool.h> |
| 14 |
#include <stdint.h> |
| 15 |
#include <stdio.h> |
| 16 |
#include <stdlib.h> |
| 17 |
#include <string.h> |
| 18 |
#include <sys/socket.h> |
| 19 |
#include <sys/stat.h> |
| 20 |
#include <sys/types.h> |
| 21 |
#include <time.h> |
| 22 |
#include <unistd.h> |
| 23 |
|
| 24 |
struct freehttpd |
| 25 |
{ |
| 26 |
int sockfd; |
| 27 |
magic_t magic; |
| 28 |
freehttpd_config_t *config; |
| 29 |
freehttpd_errdoc_tbl_t *errdoc_tbl; |
| 30 |
}; |
| 31 |
|
| 32 |
static freehttpd_config_t * |
| 33 |
freehttpd_config_init () |
| 34 |
{ |
| 35 |
struct freehttpd_config *config = calloc (1, sizeof (freehttpd_config_t)); |
| 36 |
|
| 37 |
if (config == NULL) |
| 38 |
return NULL; |
| 39 |
|
| 40 |
config->port = 80; |
| 41 |
config->addr = NULL; |
| 42 |
config->max_listen_queue = 5; |
| 43 |
config->max_method_len = 16; |
| 44 |
config->max_uri_len = 8192; |
| 45 |
config->max_version_len = 16; |
| 46 |
config->docroot = NULL; |
| 47 |
|
| 48 |
return config; |
| 49 |
} |
| 50 |
|
| 51 |
static void |
| 52 |
freehttpd_config_free (freehttpd_config_t *config) |
| 53 |
{ |
| 54 |
if (config == NULL) |
| 55 |
return; |
| 56 |
|
| 57 |
free (config->docroot); |
| 58 |
free (config->addr); |
| 59 |
free (config); |
| 60 |
} |
| 61 |
|
| 62 |
freehttpd_t * |
| 63 |
freehttpd_init (magic_t magic) |
| 64 |
{ |
| 65 |
freehttpd_t *freehttpd = calloc (1, sizeof (freehttpd_t)); |
| 66 |
|
| 67 |
if (freehttpd == NULL) |
| 68 |
return NULL; |
| 69 |
|
| 70 |
freehttpd->sockfd = -1; |
| 71 |
freehttpd->magic = magic; |
| 72 |
freehttpd->config = freehttpd_config_init (); |
| 73 |
freehttpd->errdoc_tbl = freehttpd_error_document_tbl_init (); |
| 74 |
|
| 75 |
freehttpd_error_document_load_defaults (freehttpd->errdoc_tbl); |
| 76 |
return freehttpd; |
| 77 |
} |
| 78 |
|
| 79 |
ecode_t |
| 80 |
freehttpd_setopt (freehttpd_t *freehttpd, freehttpd_opt_t opt, void *value) |
| 81 |
{ |
| 82 |
switch (opt) |
| 83 |
{ |
| 84 |
case FREEHTTPD_CONFIG_PORT: |
| 85 |
freehttpd->config->port = *(unsigned int *) value; |
| 86 |
break; |
| 87 |
|
| 88 |
case FREEHTTPD_CONFIG_ADDR: |
| 89 |
freehttpd->config->addr |
| 90 |
= value == NULL ? NULL : strdup ((const char *) value); |
| 91 |
break; |
| 92 |
|
| 93 |
case FREEHTTPD_CONFIG_MAX_LISTEN_QUEUE: |
| 94 |
freehttpd->config->max_listen_queue = *(unsigned int *) value; |
| 95 |
break; |
| 96 |
|
| 97 |
case FREEHTTPD_CONFIG_MAX_METHOD_LEN: |
| 98 |
freehttpd->config->max_method_len = *(size_t *) value; |
| 99 |
break; |
| 100 |
|
| 101 |
case FREEHTTPD_CONFIG_MAX_URI_LEN: |
| 102 |
freehttpd->config->max_uri_len = *(size_t *) value; |
| 103 |
break; |
| 104 |
|
| 105 |
case FREEHTTPD_CONFIG_MAX_VERSION_LEN: |
| 106 |
freehttpd->config->max_version_len = *(size_t *) value; |
| 107 |
break; |
| 108 |
|
| 109 |
case FREEHTTPD_CONFIG_DOCROOT: |
| 110 |
freehttpd->config->docroot |
| 111 |
= value == NULL ? NULL : strdup ((const char *) value); |
| 112 |
|
| 113 |
if (value != NULL) |
| 114 |
freehttpd->config->_docroot_length |
| 115 |
= strlen (freehttpd->config->docroot); |
| 116 |
break; |
| 117 |
|
| 118 |
default: |
| 119 |
return E_UNKNOWN_OPT; |
| 120 |
} |
| 121 |
|
| 122 |
return E_OK; |
| 123 |
} |
| 124 |
|
| 125 |
void |
| 126 |
freehttpd_free (freehttpd_t *freehttpd) |
| 127 |
{ |
| 128 |
if (freehttpd == NULL) |
| 129 |
return; |
| 130 |
|
| 131 |
freehttpd_error_document_tbl_free (freehttpd->errdoc_tbl); |
| 132 |
freehttpd_config_free (freehttpd->config); |
| 133 |
free (freehttpd); |
| 134 |
} |
| 135 |
|
| 136 |
static ecode_t |
| 137 |
freehttpd_create_socket (freehttpd_t *freehttpd) |
| 138 |
{ |
| 139 |
int sockfd = socket (AF_INET, SOCK_STREAM, 0); |
| 140 |
|
| 141 |
if (sockfd < 0) |
| 142 |
return E_SYSCALL_SOCKET; |
| 143 |
|
| 144 |
int opt = 1; |
| 145 |
|
| 146 |
if (setsockopt (sockfd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof (opt)) < 0) |
| 147 |
return E_SYSCALL_SETSOCKOPT; |
| 148 |
|
| 149 |
freehttpd->sockfd = sockfd; |
| 150 |
return E_OK; |
| 151 |
} |
| 152 |
|
| 153 |
static struct sockaddr_in |
| 154 |
freehttpd_setup_addrinfo (freehttpd_t *freehttpd) |
| 155 |
{ |
| 156 |
struct sockaddr_in addr = { 0 }; |
| 157 |
const char *addr_host = freehttpd->config->addr; |
| 158 |
|
| 159 |
addr.sin_family = AF_INET; |
| 160 |
addr.sin_port = htons (freehttpd->config->port); |
| 161 |
addr.sin_addr.s_addr |
| 162 |
= addr_host == NULL ? INADDR_ANY : inet_addr (addr_host); |
| 163 |
|
| 164 |
return addr; |
| 165 |
} |
| 166 |
|
| 167 |
static ecode_t |
| 168 |
freehttpd_bind (freehttpd_t *freehttpd, struct sockaddr_in *addr_in) |
| 169 |
{ |
| 170 |
if (bind (freehttpd->sockfd, (struct sockaddr *) addr_in, sizeof (*addr_in)) |
| 171 |
< 0) |
| 172 |
return E_SYSCALL_BIND; |
| 173 |
|
| 174 |
return E_OK; |
| 175 |
} |
| 176 |
|
| 177 |
static ecode_t |
| 178 |
freehttpd_listen (freehttpd_t *freehttpd) |
| 179 |
{ |
| 180 |
unsigned int max_listen_queue = freehttpd->config->max_listen_queue; |
| 181 |
|
| 182 |
if (listen (freehttpd->sockfd, (int) max_listen_queue) < 0) |
| 183 |
return E_SYSCALL_LISTEN; |
| 184 |
|
| 185 |
return E_OK; |
| 186 |
} |
| 187 |
|
| 188 |
static ecode_t |
| 189 |
freehttpd_send_error (freehttpd_t *freehttpd, FILE *stream, int sockfd, |
| 190 |
freehttpd_status_t status, const char *version) |
| 191 |
{ |
| 192 |
freehttpd_response_t *response = freehttpd_response_init ( |
| 193 |
stream, version == NULL ? HTTP1_1 : version, 3, status); |
| 194 |
ecode_t ret = E_OK; |
| 195 |
|
| 196 |
if (response == NULL) |
| 197 |
return E_LIBC_MALLOC; |
| 198 |
|
| 199 |
if (stream == NULL) |
| 200 |
stream = fdopen (sockfd, "w"); |
| 201 |
|
| 202 |
if (stream == NULL) |
| 203 |
{ |
| 204 |
freehttpd_response_free (response); |
| 205 |
return E_LIBC_FDOPEN; |
| 206 |
} |
| 207 |
|
| 208 |
freehttpd_response_add_default_headers (response); |
| 209 |
|
| 210 |
const freehttpd_errdoc_t *doc |
| 211 |
= freehttpd_error_document_get (freehttpd->errdoc_tbl, status); |
| 212 |
|
| 213 |
if (doc == NULL) |
| 214 |
{ |
| 215 |
freehttpd_response_add_header (response, "Content-Length", 0, "0"); |
| 216 |
freehttpd_response_head_send (response); |
| 217 |
freehttpd_response_begin_end (response); |
| 218 |
return E_OK; |
| 219 |
} |
| 220 |
|
| 221 |
freehttpd_response_add_header (response, "Content-Type", 0, |
| 222 |
"text/html; charset=\"utf-8\""); |
| 223 |
freehttpd_response_add_header (response, "Content-Length", 0, "%lu", |
| 224 |
doc->document_length); |
| 225 |
|
| 226 |
ret = freehttpd_response_head_send (response); |
| 227 |
|
| 228 |
if (ret != E_OK) |
| 229 |
log_err (LOG_ERR "failed to send error response headers: %i\n", ret); |
| 230 |
|
| 231 |
ret = freehttpd_response_begin_body (response); |
| 232 |
|
| 233 |
if (ret != E_OK) |
| 234 |
log_err (LOG_ERR "failed to start sending response: %i\n", ret); |
| 235 |
|
| 236 |
if (freehttpd_response_write (response, doc->document, 1, |
| 237 |
doc->document_length) |
| 238 |
!= doc->document_length) |
| 239 |
log_err (LOG_ERR "failed to write error response: %i\n", ret); |
| 240 |
|
| 241 |
freehttpd_response_free (response); |
| 242 |
return ret; |
| 243 |
} |
| 244 |
|
| 245 |
static long |
| 246 |
fsize (FILE *file) |
| 247 |
{ |
| 248 |
long size; |
| 249 |
long pos = ftell (file); |
| 250 |
fseek (file, 0, SEEK_END); |
| 251 |
size = ftell (file); |
| 252 |
fseek (file, pos, SEEK_SET); |
| 253 |
return size; |
| 254 |
} |
| 255 |
|
| 256 |
static void |
| 257 |
iasprintf (char **strp, const char *fmt, ...) |
| 258 |
{ |
| 259 |
va_list ap; |
| 260 |
va_start (ap, fmt); |
| 261 |
(void) (vasprintf (strp, fmt, ap) + 1); |
| 262 |
va_end (ap); |
| 263 |
} |
| 264 |
|
| 265 |
/* |
| 266 |
static ecode_t |
| 267 |
freehttpd_respond_dindex (freehttpd_t *freehttpd, freehttpd_request_t *request, |
| 268 |
freehttpd_response_t *response, FILE *stream, |
| 269 |
const char *rpath) |
| 270 |
{ |
| 271 |
freehttpd_response_set_status (response, FREEHTTPD_STATUS_OK); |
| 272 |
ecode_t code = freehttpd_response_head_send (response); |
| 273 |
|
| 274 |
if (code != E_OK) |
| 275 |
return code; |
| 276 |
|
| 277 |
bool is_root = strcmp (freehttpd->config->docroot, rpath) == 0; |
| 278 |
bool http1_0 = strcmp (request->version, "1.0") == 0; |
| 279 |
|
| 280 |
fprintf (stream, "Content-Type: text/html; charset=\"utf-8\"\r\n"); |
| 281 |
|
| 282 |
if (http1_0) |
| 283 |
fprintf (stream, "Content-Length: -1\r\n"); |
| 284 |
else |
| 285 |
fprintf (stream, "Transfer-Encoding: chunked\r\n"); |
| 286 |
|
| 287 |
fprintf (stream, "\r\n"); |
| 288 |
|
| 289 |
DIR *dir = opendir (rpath); |
| 290 |
|
| 291 |
if (dir == NULL) |
| 292 |
return E_SYSCALL_READ; |
| 293 |
|
| 294 |
struct dirent *entry = NULL; |
| 295 |
char *out_buf = NULL; |
| 296 |
|
| 297 |
iasprintf ( |
| 298 |
&out_buf, |
| 299 |
"<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 3.2//EN\">\r\n" |
| 300 |
"<html>\r\n" |
| 301 |
"<head>\r\n" |
| 302 |
"<title>Index of %s</title>\r\n" |
| 303 |
"</head>\r\n" |
| 304 |
"<body>\r\n" |
| 305 |
"<h1>Index of %s</h1>\r\n" |
| 306 |
"<table>\r\n" |
| 307 |
"<tr>\r\n" |
| 308 |
" <th>\r\n" |
| 309 |
" <img\r\n" |
| 310 |
" src=\"https://httpd.apache.org/icons/blank.gif\"\r\n" |
| 311 |
" alt=\"[ICO]\"\r\n" |
| 312 |
" />\r\n" |
| 313 |
" </th>\r\n" |
| 314 |
" <th><a href=\"?C=N;O=D\">Name</a></th>\r\n" |
| 315 |
" <th><a href=\"?C=M;O=A\">Last modified</a></th>\r\n" |
| 316 |
" <th><a href=\"?C=S;O=A\">Size</a></th>\r\n" |
| 317 |
" <th><a href=\"?C=D;O=A\">Description</a></th>\r\n" |
| 318 |
"</tr>\r\n" |
| 319 |
"<tr>\r\n" |
| 320 |
" <th colspan=\"5\"><hr /></th>\r\n" |
| 321 |
"</tr>\r\n", |
| 322 |
request->uri, request->uri); |
| 323 |
|
| 324 |
fprintf (stream, "%lx\r\n%s\r\n", strlen (out_buf), out_buf); |
| 325 |
free (out_buf); |
| 326 |
|
| 327 |
if (!is_root) |
| 328 |
{ |
| 329 |
iasprintf (&out_buf, |
| 330 |
"<tr>\r\n" |
| 331 |
"<td valign=\"top\">\r\n" |
| 332 |
"<img\r\n" |
| 333 |
"src=\"https://httpd.apache.org/icons/back.gif\"\r\n" |
| 334 |
"alt=\"[DIR]\"\r\n" |
| 335 |
"/>\r\n" |
| 336 |
"</td>\r\n" |
| 337 |
"<td><a href=\"..\">Parent Directory</a></td>\r\n" |
| 338 |
"<td> </td>\r\n" |
| 339 |
"<td align=\"right\"> - </td>\r\n" |
| 340 |
"<td> </td>\r\n" |
| 341 |
"</tr>\r\n"); |
| 342 |
|
| 343 |
fprintf (stream, "%lx\r\n%s\r\n", strlen (out_buf), out_buf); |
| 344 |
free (out_buf); |
| 345 |
} |
| 346 |
|
| 347 |
while ((entry = readdir (dir)) != NULL) |
| 348 |
{ |
| 349 |
if (strcmp (entry->d_name, ".") == 0 |
| 350 |
|| strcmp (entry->d_name, "..") == 0) |
| 351 |
continue; |
| 352 |
|
| 353 |
struct stat st = { 0 }; |
| 354 |
char path[PATH_MAX] = { 0 }; |
| 355 |
char mtime_str[64] = { 0 }; |
| 356 |
|
| 357 |
strcpy (path, rpath); |
| 358 |
strcat (path, "/"); |
| 359 |
strcat (path, entry->d_name); |
| 360 |
|
| 361 |
if (lstat (path, &st) < 0) |
| 362 |
continue; |
| 363 |
|
| 364 |
struct tm *mtime = localtime (&st.st_mtime); |
| 365 |
strftime (mtime_str, sizeof (mtime_str), "%Y-%m-%d %H:%M", mtime); |
| 366 |
|
| 367 |
iasprintf (&out_buf, |
| 368 |
"<tr>\r\n" |
| 369 |
"<td valign=\"top\">\r\n" |
| 370 |
"<img\r\n" |
| 371 |
"src=\"https://httpd.apache.org/icons/%s.gif\"\r\n" |
| 372 |
"alt=\"[DIR]\"\r\n" |
| 373 |
"/>\r\n" |
| 374 |
"</td>\r\n", |
| 375 |
S_ISDIR (st.st_mode) ? "folder" : "unknown"); |
| 376 |
|
| 377 |
fprintf (stream, "%lx\r\n%s\r\n", strlen (out_buf), out_buf); |
| 378 |
free (out_buf); |
| 379 |
|
| 380 |
const char *leading_slash = S_ISDIR (st.st_mode) ? "/" : ""; |
| 381 |
iasprintf (&out_buf, |
| 382 |
"<td><a href=\"%s%s%s%s\">%s%s</a></td>\r\n" |
| 383 |
"<td align=\"right\">%s</td>\r\n" |
| 384 |
"<td align=\"right\"> - </td>\r\n" |
| 385 |
"</tr>\r\n", |
| 386 |
request->uri, |
| 387 |
request->uri[request->uri_length - 1] == '/' ? "" : "/", |
| 388 |
entry->d_name, leading_slash, entry->d_name, |
| 389 |
leading_slash, mtime_str); |
| 390 |
|
| 391 |
fprintf (stream, "%lx\r\n%s\r\n", strlen (out_buf), out_buf); |
| 392 |
free (out_buf); |
| 393 |
} |
| 394 |
|
| 395 |
iasprintf (&out_buf, |
| 396 |
"<tr>\r\n" |
| 397 |
" <th colspan=\"5\"><hr /></th>\r\n" |
| 398 |
"</tr>\r\n" |
| 399 |
"</table><address>freehttpd/1.0.0-beta.1 (Ubuntu 24.04 " |
| 400 |
"LTS) Server at localhost Port 8080</address>\r\n" |
| 401 |
"</body>\r\n" |
| 402 |
"</html>\r\n"); |
| 403 |
|
| 404 |
fprintf (stream, "%lx\r\n%s\r\n", strlen (out_buf), out_buf); |
| 405 |
free (out_buf); |
| 406 |
|
| 407 |
fprintf (stream, "0\r\n\r\n"); |
| 408 |
closedir (dir); |
| 409 |
return E_OK; |
| 410 |
} |
| 411 |
*/ |
| 412 |
|
| 413 |
static ecode_t |
| 414 |
freehttpd_respond_http1x (freehttpd_t *freehttpd, freehttpd_request_t *request, |
| 415 |
freehttpd_response_t *response) |
| 416 |
{ |
| 417 |
return freehttpd_send_error (freehttpd, response->stream, 0, |
| 418 |
FREEHTTPD_STATUS_NOT_IMPLEMENTED, |
| 419 |
request->version); |
| 420 |
// return E_OK; |
| 421 |
} |
| 422 |
|
| 423 |
/* |
| 424 |
static ecode_t |
| 425 |
freehttpd_respond (freehttpd_t *freehttpd, freehttpd_request_t *request, |
| 426 |
freehttpd_response_t *response, FILE *stream) |
| 427 |
{ |
| 428 |
freehttpd_response_add_default_headers (response); |
| 429 |
|
| 430 |
const char *docroot = freehttpd->config->docroot; |
| 431 |
char *rpath = NULL; |
| 432 |
freehttpd_status_t status = FREEHTTPD_STATUS_OK; |
| 433 |
|
| 434 |
if (docroot == NULL) |
| 435 |
{ |
| 436 |
status = FREEHTTPD_STATUS_INTERNAL_SERVER_ERROR; |
| 437 |
goto freehttpd_respond_error; |
| 438 |
} |
| 439 |
|
| 440 |
char *path = request->path; |
| 441 |
|
| 442 |
if (path == NULL) |
| 443 |
{ |
| 444 |
status = FREEHTTPD_STATUS_INTERNAL_SERVER_ERROR; |
| 445 |
goto freehttpd_respond_error; |
| 446 |
} |
| 447 |
|
| 448 |
char *fs_path = NULL; |
| 449 |
|
| 450 |
if (asprintf (&fs_path, "%s%s", docroot, path) < 0) |
| 451 |
{ |
| 452 |
status = FREEHTTPD_STATUS_INTERNAL_SERVER_ERROR; |
| 453 |
return E_LIBC_MALLOC; |
| 454 |
} |
| 455 |
|
| 456 |
rpath = realpath (fs_path, NULL); |
| 457 |
|
| 458 |
if (rpath == NULL) |
| 459 |
{ |
| 460 |
status = FREEHTTPD_STATUS_NOT_FOUND; |
| 461 |
goto freehttpd_respond_error; |
| 462 |
} |
| 463 |
|
| 464 |
if (strncmp (docroot, rpath, freehttpd->config->_docroot_length) != 0) |
| 465 |
{ |
| 466 |
status = FREEHTTPD_STATUS_FORBIDDEN; |
| 467 |
goto freehttpd_respond_error; |
| 468 |
} |
| 469 |
|
| 470 |
log_msg (LOG_DEBUG "rpath: %s\n", rpath); |
| 471 |
struct stat st = { 0 }; |
| 472 |
|
| 473 |
if (lstat (rpath, &st) < 0) |
| 474 |
{ |
| 475 |
status = FREEHTTPD_STATUS_INTERNAL_SERVER_ERROR; |
| 476 |
goto freehttpd_respond_error; |
| 477 |
} |
| 478 |
|
| 479 |
if (S_ISDIR (st.st_mode)) |
| 480 |
{ |
| 481 |
ecode_t code = freehttpd_respond_dindex (freehttpd, request, |
| 482 |
response, stream, rpath); |
| 483 |
|
| 484 |
free (rpath); |
| 485 |
free (fs_path); |
| 486 |
return code; |
| 487 |
} |
| 488 |
|
| 489 |
FILE *file = fopen (rpath, "r"); |
| 490 |
|
| 491 |
if (file == NULL) |
| 492 |
{ |
| 493 |
switch (errno) |
| 494 |
{ |
| 495 |
case EACCES: |
| 496 |
case EISDIR: |
| 497 |
status = FREEHTTPD_STATUS_FORBIDDEN; |
| 498 |
break; |
| 499 |
case ENOENT: |
| 500 |
status = FREEHTTPD_STATUS_NOT_FOUND; |
| 501 |
break; |
| 502 |
default: |
| 503 |
status = FREEHTTPD_STATUS_INTERNAL_SERVER_ERROR; |
| 504 |
break; |
| 505 |
} |
| 506 |
|
| 507 |
goto freehttpd_respond_error; |
| 508 |
} |
| 509 |
|
| 510 |
const char *content_type = NULL; |
| 511 |
size_t rpath_len = strlen (rpath); |
| 512 |
|
| 513 |
if (rpath_len > 4 && strcmp (rpath + rpath_len - 4, ".css") == 0) |
| 514 |
content_type = "text/css"; |
| 515 |
else if (rpath_len > 5 && strcmp (rpath + rpath_len - 5, ".html") == 0) |
| 516 |
content_type = "text/html"; |
| 517 |
else if (rpath_len > 4 && strcmp (rpath + rpath_len - 3, ".js") == 0) |
| 518 |
content_type = "application/javascript"; |
| 519 |
else |
| 520 |
{ |
| 521 |
content_type = magic_descriptor (freehttpd->magic, fileno (file)); |
| 522 |
|
| 523 |
if (content_type == NULL) |
| 524 |
content_type = "application/octet-stream"; |
| 525 |
} |
| 526 |
|
| 527 |
fseek (file, 0, SEEK_SET); |
| 528 |
|
| 529 |
long file_size = fsize (file); |
| 530 |
char buffer[1024] = { 0 }; |
| 531 |
|
| 532 |
if (file_size == -1) |
| 533 |
{ |
| 534 |
status = FREEHTTPD_STATUS_INTERNAL_SERVER_ERROR; |
| 535 |
goto freehttpd_respond_error; |
| 536 |
} |
| 537 |
|
| 538 |
freehttpd_response_set_status (response, status); |
| 539 |
ecode_t code = freehttpd_response_head_send (response); |
| 540 |
|
| 541 |
if (code != E_OK) |
| 542 |
{ |
| 543 |
free (rpath); |
| 544 |
free (fs_path); |
| 545 |
fclose (file); |
| 546 |
return code; |
| 547 |
} |
| 548 |
|
| 549 |
char etag[128] = { 0 }; |
| 550 |
bool http1_0 = strcmp (request->version, "1.0") == 0; |
| 551 |
snprintf (etag, sizeof (etag), "\"%lx-%lx\"", st.st_mtime, file_size); |
| 552 |
|
| 553 |
fprintf (stream, "Content-Type: %s\r\n", content_type); |
| 554 |
|
| 555 |
if (http1_0) |
| 556 |
fprintf (stream, "Content-Length: %ld\r\n", file_size); |
| 557 |
else |
| 558 |
fprintf (stream, "Transfer-Encoding: chunked\r\n"); |
| 559 |
|
| 560 |
fprintf (stream, "ETag: %s\r\n", etag); |
| 561 |
fprintf (stream, "\r\n"); |
| 562 |
|
| 563 |
while (file_size > 0) |
| 564 |
{ |
| 565 |
size_t read_size = 0; |
| 566 |
|
| 567 |
errno = 0; |
| 568 |
|
| 569 |
if ((read_size = fread (buffer, 1, sizeof (buffer), file)) == 0 |
| 570 |
&& errno != 0) |
| 571 |
{ |
| 572 |
freehttpd_response_set_status ( |
| 573 |
response, FREEHTTPD_STATUS_INTERNAL_SERVER_ERROR); |
| 574 |
free (rpath); |
| 575 |
free (fs_path); |
| 576 |
fclose (file); |
| 577 |
return E_SYSCALL_READ; |
| 578 |
} |
| 579 |
|
| 580 |
if (!http1_0) |
| 581 |
fprintf (stream, "%lx\r\n", read_size); |
| 582 |
|
| 583 |
if (fwrite (buffer, 1, read_size, stream) != read_size) |
| 584 |
{ |
| 585 |
free (rpath); |
| 586 |
free (fs_path); |
| 587 |
fclose (file); |
| 588 |
return E_SYSCALL_WRITE; |
| 589 |
} |
| 590 |
|
| 591 |
if (!http1_0) |
| 592 |
fprintf (stream, "\r\n"); |
| 593 |
|
| 594 |
if (file_size >= (long int) read_size) |
| 595 |
file_size -= (long int) read_size; |
| 596 |
else |
| 597 |
file_size = 0; |
| 598 |
} |
| 599 |
|
| 600 |
if (!http1_0) |
| 601 |
fprintf (stream, "0\r\n\r\n"); |
| 602 |
|
| 603 |
fclose (file); |
| 604 |
freehttpd_respond_error: |
| 605 |
freehttpd_response_set_status (response, status); |
| 606 |
|
| 607 |
if (status != FREEHTTPD_STATUS_OK) |
| 608 |
freehttpd_send_error (stream, 0, status, request->version); |
| 609 |
|
| 610 |
free (rpath); |
| 611 |
free (fs_path); |
| 612 |
return E_OK; |
| 613 |
} |
| 614 |
*/ |
| 615 |
|
| 616 |
static ecode_t |
| 617 |
freehttpd_loop (freehttpd_t *freehttpd) |
| 618 |
{ |
| 619 |
while (true) |
| 620 |
{ |
| 621 |
struct sockaddr_in client_addr = { 0 }; |
| 622 |
socklen_t client_addr_len = sizeof (client_addr); |
| 623 |
int client_sockfd |
| 624 |
= accept (freehttpd->sockfd, (struct sockaddr *) &client_addr, |
| 625 |
&client_addr_len); |
| 626 |
|
| 627 |
if (client_sockfd < 0) |
| 628 |
return E_SYSCALL_ACCEPT; |
| 629 |
|
| 630 |
ecode_t code = E_OK; |
| 631 |
freehttpd_request_t *request |
| 632 |
= freehttpd_request_parse (freehttpd, client_sockfd, &code); |
| 633 |
|
| 634 |
if (code != E_OK) |
| 635 |
{ |
| 636 |
log_err (LOG_ERR "failed to parse request: %i\n", code); |
| 637 |
freehttpd_send_error (freehttpd, NULL, client_sockfd, |
| 638 |
FREEHTTPD_STATUS_BAD_REQUEST, |
| 639 |
HTTP1_1); |
| 640 |
continue; |
| 641 |
} |
| 642 |
|
| 643 |
FILE *stream = fdopen (client_sockfd, "w"); |
| 644 |
|
| 645 |
if (stream == NULL) |
| 646 |
{ |
| 647 |
log_err (LOG_ERR "failed to open stream\n"); |
| 648 |
freehttpd_send_error ( |
| 649 |
freehttpd, NULL, client_sockfd, |
| 650 |
FREEHTTPD_STATUS_INTERNAL_SERVER_ERROR, |
| 651 |
request->version); |
| 652 |
freehttpd_request_free (request); |
| 653 |
close (client_sockfd); |
| 654 |
continue; |
| 655 |
} |
| 656 |
|
| 657 |
freehttpd_response_t *response = freehttpd_response_init ( |
| 658 |
stream, request->version, request->version_length, |
| 659 |
FREEHTTPD_STATUS_OK); |
| 660 |
|
| 661 |
if (response == NULL) |
| 662 |
{ |
| 663 |
log_err (LOG_ERR "failed to init response\n"); |
| 664 |
freehttpd_send_error ( |
| 665 |
freehttpd, NULL, client_sockfd, |
| 666 |
FREEHTTPD_STATUS_INTERNAL_SERVER_ERROR, |
| 667 |
request->version); |
| 668 |
freehttpd_request_free (request); |
| 669 |
close (client_sockfd); |
| 670 |
continue; |
| 671 |
} |
| 672 |
|
| 673 |
code = freehttpd_respond_http1x (freehttpd, request, response); |
| 674 |
|
| 675 |
log_msg (LOG_INFO "%s %s HTTP/%s - %d %s\n", request->method, |
| 676 |
request->uri, request->version, response->status.code, |
| 677 |
response->status.text); |
| 678 |
|
| 679 |
if (code != E_OK) |
| 680 |
log_err (LOG_ERR "failed to send response: %i\n", code); |
| 681 |
|
| 682 |
fclose (stream); |
| 683 |
freehttpd_response_free (response); |
| 684 |
freehttpd_request_free (request); |
| 685 |
} |
| 686 |
|
| 687 |
return E_OK; |
| 688 |
} |
| 689 |
|
| 690 |
ecode_t |
| 691 |
freehttpd_start (freehttpd_t *restrict freehttpd) |
| 692 |
{ |
| 693 |
ecode_t code = E_OK; |
| 694 |
struct sockaddr_in addr_in; |
| 695 |
|
| 696 |
if ((code = freehttpd_create_socket (freehttpd)) != E_OK) |
| 697 |
return code; |
| 698 |
|
| 699 |
addr_in = freehttpd_setup_addrinfo (freehttpd); |
| 700 |
|
| 701 |
if ((code = freehttpd_bind (freehttpd, &addr_in)) != E_OK) |
| 702 |
return code; |
| 703 |
|
| 704 |
if ((code = freehttpd_listen (freehttpd)) != E_OK) |
| 705 |
return code; |
| 706 |
|
| 707 |
return freehttpd_loop (freehttpd); |
| 708 |
} |
| 709 |
|
| 710 |
const freehttpd_config_t * |
| 711 |
freehttpd_get_config (freehttpd_t *freehttpd) |
| 712 |
{ |
| 713 |
return freehttpd->config; |
| 714 |
} |
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