static int static_file_write_content(request_t *req, response_t *resp, handler_ctx_t *ctx) {
int fd;
size_t size, offset;
size = context_pop(ctx)->as_long;
offset = context_pop(ctx)->as_long;
fd = context_peek(ctx)->as_int;
debug("writing file");
if (response_send_file(resp, fd, offset, size, static_file_cleanup) < 0) {
error("Error sending file");
return response_send_status(resp, STATUS_NOT_FOUND);
}
return HANDLER_UNFISHED;
}
/*
* Here we send a disk file to the client, if the file exists.
* A few rules:
* a) The URI must be valid, no ..
* b) The documentroot will be prepended to the file. No empty
* documentroots allowed. Minimum docroot is 2 characters, and
* it cannot contain "..". The docroot must either be ./ or / or
* something longer.
*/
static int send_disk_file(
http_server s,
connection conn,
http_request req,
http_response response,
meta_error e)
{
size_t i;
const char *uri, *docroot;
char filename[CCH_URI_MAX + DOCUMENTROOT_MAX + 2];
struct stat st;
page_attribute a;
http_version v;
const char* content_type;
assert(s != NULL);
assert(conn != NULL);
assert(req != NULL);
assert(response != NULL);
assert(e != NULL);
(void)conn; /* TODO: Sjekk hvorfor funksjonen ikke sender fila??? */
/* We need a valid uri */
if( (uri = request_get_uri(req)) == NULL
|| strlen(uri) == 0
|| strstr(uri, ".."))
return set_http_error(e, HTTP_400_BAD_REQUEST);
/* We need a valid documentroot */
if( (docroot = http_server_get_documentroot(s)) == NULL)
return set_http_error(e, HTTP_400_BAD_REQUEST);
i = strlen(docroot);
if (i < 1
|| (i == 1 && *docroot != '/')
|| (i == 2 && strcmp(docroot, "./") != 0)
|| (docroot[0] == '.' && docroot[1] == '.')
|| strstr(docroot, "..") != NULL )
return set_http_error(e, HTTP_400_BAD_REQUEST);
/* We need space for the absolute path */
i += strlen(uri) + 2;
if(i >= sizeof(filename))
return set_http_error(e, HTTP_400_BAD_REQUEST);
/* Create the path */
sprintf(filename, "%s/%s", docroot, uri);
/* Does the file exist? */
if(stat(filename, &st))
return set_http_error(e, HTTP_404_NOT_FOUND);
else if(S_ISREG(st.st_mode))
;
else if(S_ISDIR(st.st_mode)) {
strcat(filename, "/index.html");
if(stat(filename, &st))
return set_http_error(e, HTTP_404_NOT_FOUND);
else if(!S_ISREG(st.st_mode))
return set_http_error(e, HTTP_400_BAD_REQUEST);
}
else
return set_http_error(e, HTTP_400_BAD_REQUEST);
/* We must check page_attributes even for files loaded from disk. */
/* NOTE: Trengs dette for HTTP 1.0 ?*/
v = request_get_version(req);
if( (a = http_server_get_default_attributes(s)) != NULL
&& !check_attributes(req, a)) {
response_set_status(response, HTTP_406_NOT_ACCEPTABLE);
return set_http_error(e, HTTP_406_NOT_ACCEPTABLE);
}
content_type = get_mime_type(filename);
/* This function does not actually send the file, just stats it
* and stores the path. The contents will be sent later when
* response_send_entity is called.
*/
if(!response_send_file(response, filename, content_type, e))
return 0;
else {
response_set_status(response, HTTP_200_OK);
return 1;
}
}
