int get_dir(request * req, struct stat *statbuf)
{
char pathname_with_index[MAX_PATH_LENGTH];
int data_fd;
if (directory_index) { /* look for index.html first?? */
strcpy(pathname_with_index, req->pathname);
strcat(pathname_with_index, directory_index);
/*
sprintf(pathname_with_index, "%s%s", req->pathname, directory_index);
*/
data_fd = open(pathname_with_index, O_RDONLY);
if (data_fd != -1) { /* user's index file */
strcpy(req->request_uri, directory_index); /* for mimetype */
fstat(data_fd, statbuf);
return data_fd;
}
if (errno == EACCES) {
send_r_forbidden(req);
return -1;
} else if (errno != ENOENT) {
/* if there is an error *other* than EACCES or ENOENT */
send_r_not_found(req);
return -1;
}
#ifdef GUNZIP
/* if we are here, trying index.html didn't work
* try index.html.gz
*/
strcat(pathname_with_index, ".gz");
data_fd = open(pathname_with_index, O_RDONLY);
if (data_fd != -1) { /* user's index file */
close(data_fd);
req->response_status = R_REQUEST_OK;
SQUASH_KA(req);
if (req->pathname)
free(req->pathname);
req->pathname = strdup(pathname_with_index);
if (!req->pathname) {
log_error_time();
perror("strdup");
send_r_error(req);
return 0;
}
if (!req->simple) {
req_write(req, "HTTP/1.0 200 OK-GUNZIP\r\n");
print_http_headers(req);
print_last_modified(req);
req_write(req, "Content-Type: ");
req_write(req, get_mime_type(directory_index));
req_write(req, "\r\n\r\n");
req_flush(req);
}
if (req->method == M_HEAD)
return 0;
return init_cgi(req);
}
#endif
}
/* only here if index.html, index.html.gz don't exist */
if (dirmaker != NULL) { /* don't look for index.html... maybe automake? */
req->response_status = R_REQUEST_OK;
SQUASH_KA(req);
/* the indexer should take care of all headers */
if (!req->simple) {
req_write(req, "HTTP/1.0 200 OK\r\n");
print_http_headers(req);
print_last_modified(req);
req_write(req, "Content-Type: text/html\r\n\r\n");
req_flush(req);
}
if (req->method == M_HEAD)
return 0;
return init_cgi(req);
/* in this case, 0 means success */
} else if (cachedir) {
return get_cachedir_file(req, statbuf);
} else { /* neither index.html nor autogenerate are allowed */
send_r_forbidden(req);
return -1; /* nothing worked */
}
}
int process_get(request * req)
{
off_t bytes_written;
volatile off_t bytes_to_write;
if (req->method == M_HEAD) {
return complete_response(req);
}
bytes_to_write = (req->ranges->stop - req->ranges->start) + 1;
if (bytes_to_write > system_bufsize)
bytes_to_write = system_bufsize;
if (setjmp(env) == 0) {
handle_sigbus = 1;
bytes_written = write(req->fd, req->data_mem + req->ranges->start,
bytes_to_write);
handle_sigbus = 0;
/* OK, SIGBUS **after** this point is very bad! */
} else {
/* sigbus! */
req->status = DEAD;
log_error_doc(req);
fprintf(stderr, "%sGot SIGBUS in write(2)!\n",
get_commonlog_time());
/* sending an error here is inappropriate
* if we are here, the file is mmapped, and thus,
* a content-length has been sent. If we send fewer bytes
* the client knows there has been a problem.
* We run the risk of accidentally sending the right number
* of bytes (or a few too many) and the client
* won't be the wiser.
*/
return 0;
}
if (bytes_written < 0) {
if (errno == EWOULDBLOCK || errno == EAGAIN)
return -1;
/* request blocked at the pipe level, but keep going */
else {
#ifdef QUIET_DISCONNECT
if (errno != EPIPE) {
#else
if (1) {
#endif
log_error_doc(req);
/* Can generate lots of log entries, */
perror("write");
/* OK to disable if your logs get too big */
}
req->status = DEAD;
return 0;
}
}
req->bytes_written += bytes_written;
req->ranges->start += bytes_written;
if ((req->ranges->stop + 1 - req->ranges->start) == 0) {
return complete_response(req);
}
return 1; /* more to do */
}
/*
* Name: get_dir
* Description: Called from process_get if the request is a directory.
* statbuf must describe directory on input, since we may need its
* device, inode, and mtime.
* statbuf is updated, since we may need to check mtimes of a cache.
* returns:
* -1 error
* 0 cgi (either gunzip or auto-generated)
* >0 file descriptor of file
*/
int get_dir(request * req, struct stat *statbuf)
{
char pathname_with_index[MAX_PATH_LENGTH];
int data_fd;
if (directory_index) { /* look for index.html first?? */
unsigned int l1, l2;
l1 = strlen(req->pathname);
l2 = strlen(directory_index);
#ifdef GUNZIP
if (l1 + l2 + 3 + 1 > sizeof(pathname_with_index)) { /* for .gz */
#else
if (l1 + l2 + 1 > sizeof(pathname_with_index)) {
#endif
errno = ENOMEM;
boa_perror(req, "pathname_with_index not large enough for pathname + index");
return -1;
}
memcpy(pathname_with_index, req->pathname, l1); /* doesn't copy NUL */
memcpy(pathname_with_index + l1, directory_index, l2 + 1); /* does */
data_fd = open(pathname_with_index, O_RDONLY|O_LARGEFILE);
if (data_fd != -1) { /* user's index file */
/* We have to assume that directory_index will fit, because
* if it doesn't, well, that's a huge configuration problem.
* this is only the 'index.html' pathname for mime type
*/
memcpy(req->request_uri, directory_index, l2 + 1); /* for mimetype */
fstat(data_fd, statbuf);
return data_fd;
}
if (errno == EACCES) {
send_r_forbidden(req);
return -1;
} else if (errno != ENOENT) {
/* if there is an error *other* than EACCES or ENOENT */
send_r_not_found(req);
return -1;
}
#ifdef GUNZIP
/* if we are here, trying index.html didn't work
* try index.html.gz
*/
strcat(pathname_with_index, ".gz");
data_fd = open(pathname_with_index, O_RDONLY|O_LARGEFILE);
if (data_fd != -1) { /* user's index file */
close(data_fd);
req->response_status = R_REQUEST_OK;
SQUASH_KA(req);
if (req->pathname)
free(req->pathname);
req->pathname = strdup(pathname_with_index);
if (!req->pathname) {
boa_perror(req, "strdup of pathname_with_index for .gz files " __FILE__ ":" STR(__LINE__));
return 0;
}
if (req->http_version != HTTP09) {
req_write(req, http_ver_string(req->http_version));
req_write(req, " 200 OK-GUNZIP" CRLF);
print_http_headers(req);
print_last_modified(req);
req_write(req, "Content-Type: ");
req_write(req, get_mime_type(directory_index));
req_write(req, CRLF CRLF);
req_flush(req);
}
if (req->method == M_HEAD)
return 0;
return init_cgi(req);
}
#endif
}
/* only here if index.html, index.html.gz don't exist */
if (dirmaker != NULL) { /* don't look for index.html... maybe automake? */
req->response_status = R_REQUEST_OK;
SQUASH_KA(req);
/* the indexer should take care of all headers */
if (req->http_version != HTTP09) {
req_write(req, http_ver_string(req->http_version));
req_write(req, " 200 OK" CRLF);
print_http_headers(req);
print_last_modified(req);
req_write(req, "Content-Type: text/html" CRLF CRLF);
req_flush(req);
}
if (req->method == M_HEAD)
return 0;
return init_cgi(req);
/* in this case, 0 means success */
} else if (cachedir) {
return get_cachedir_file(req, statbuf);
} else { /* neither index.html nor autogenerate are allowed */
send_r_forbidden(req);
return -1; /* nothing worked */
}
}
static int get_cachedir_file(request * req, struct stat *statbuf)
{
char pathname_with_index[MAX_PATH_LENGTH];
int data_fd;
time_t real_dir_mtime;
real_dir_mtime = statbuf->st_mtime;
/* the sizeof() doesn't need a -1 because snprintf will
* include the NUL when calculating if the size is enough
*/
snprintf(pathname_with_index, sizeof(pathname_with_index),
"%s/dir.%d." PRINTF_OFF_T_ARG, cachedir,
(int) statbuf->st_dev, statbuf->st_ino);
data_fd = open(pathname_with_index, O_RDONLY|O_LARGEFILE);
if (data_fd != -1) { /* index cache */
fstat(data_fd, statbuf);
if (statbuf->st_mtime > real_dir_mtime) {
statbuf->st_mtime = real_dir_mtime; /* lie */
strcpy(req->request_uri, directory_index); /* for mimetype */
return data_fd;
}
close(data_fd);
unlink(pathname_with_index); /* cache is stale, delete it */
}
if (index_directory(req, pathname_with_index) == -1)
return -1;
data_fd = open(pathname_with_index, O_RDONLY|O_LARGEFILE); /* Last chance */
if (data_fd != -1) {
strcpy(req->request_uri, directory_index); /* for mimetype */
fstat(data_fd, statbuf);
statbuf->st_mtime = real_dir_mtime; /* lie */
return data_fd;
}
boa_perror(req, "re-opening dircache");
return -1; /* Nothing worked. */
}
int get_dir(request * req, struct stat *statbuf)
{
char pathname_with_index[MAX_PATH_LENGTH];
int data_fd;
if (directory_index) {
strcpy(pathname_with_index, req->pathname);
strcat(pathname_with_index, directory_index);
/*
sprintf(pathname_with_index, "%s%s", req->pathname, directory_index);
*/
data_fd = open(pathname_with_index, O_RDONLY);
if (data_fd != -1) {
strcpy(req->request_uri, directory_index);
fstat(data_fd, statbuf);
return data_fd;
}
if (errno == EACCES) {
send_r_forbidden(req);
return -1;
} else if (errno != ENOENT) {
send_r_not_found(req);
return -1;
}
#ifdef GUNZIP
/* if we are here, trying index.html didn't work
* try index.html.gz
*/
strcat(pathname_with_index, ".gz");
data_fd = open(pathname_with_index, O_RDONLY);
if (data_fd != -1) {
close(data_fd);
req->response_status = R_REQUEST_OK;
SQUASH_KA(req);
if (req->pathname)
free(req->pathname);
req->pathname = strdup(pathname_with_index);
if (!req->pathname) {
log_error_time();
perror("strdup");
send_r_error(req);
return 0;
}
if (!req->simple) {
req_write(req, "HTTP/1.0 200 OK-GUNZIP\r\n");
print_http_headers(req);
print_last_modified(req);
req_write(req, "Content-Type: ");
req_write(req, get_mime_type(directory_index));
req_write(req, "\r\n\r\n");
req_flush(req);
}
if (req->method == M_HEAD)
return 0;
return init_cgi(req);
}
#endif
}
if (dirmaker != NULL) {
req->response_status = R_REQUEST_OK;
SQUASH_KA(req);
if (!req->simple) {
req_write(req, "HTTP/1.0 200 OK\r\n");
print_http_headers(req);
print_last_modified(req);
req_write(req, "Content-Type: text/html\r\n\r\n");
req_flush(req);
}
if (req->method == M_HEAD)
return 0;
return init_cgi(req);
} else if (cachedir) {
return get_cachedir_file(req, statbuf);
} else {
send_r_forbidden(req);
return -1;
}
}
