static void handle_content_type(response_t *resp, const char *filepath) {
char *content_type = NULL, ext[20];
int dot_pos = -1;
int i;
size_t len = strlen(filepath);
ENTRY item, *ret;
for (i = len - 1; i > 0; i--) {
if (filepath[i] == '.') {
dot_pos = i;
break;
}
}
if (dot_pos < 0) {
// No '.' found in the file name (no extension part)
return;
}
strncpy(ext, filepath + 1 + dot_pos, 20);
strlowercase(ext, ext, 20);
debug("File extension: %s", ext);
item.key = ext;
if (hsearch_r(item, FIND, &ret, &std_mime_type_hash) == 0) {
return;
}
content_type = (char*) ret->data;
if (content_type != NULL) {
debug("Content type: %s", content_type);
response_set_header(resp, "Content-Type", content_type);
}
}
static int static_file_listdir(response_t *resp, const char *path,
const char *realpath) {
struct dirent **ent_list, *ent;
int ent_len;
char buf[2048];
int pos = 0, i;
debug("Opening dir: %s", realpath);
if ((ent_len = scandir(realpath, &ent_list, dir_filter, versionsort)) < 0) {
return static_file_handle_error(resp, -1);
}
resp->status = STATUS_OK;
resp->connection = CONN_CLOSE;
response_set_header(resp, "Content-Type", "text/html; charset=UTF-8");
response_send_headers(resp, NULL);
pos += snprintf(buf, 2048, listdir_header, path, path);
for (i = 0; i < ent_len; i++) {
ent = ent_list[i];
pos += snprintf(buf + pos, 2048 - pos,
ent->d_type == DT_DIR ? listdir_dir : listdir_file,
ent->d_name, ent->d_name);
if (2048 - pos < 255) {
response_write(resp, buf, pos, NULL);
pos = 0;
}
free(ent);
}
free(ent_list);
pos += snprintf(buf + pos, 2048 - pos, listdir_footer, _BREEZE_NAME);
response_write(resp, buf, pos, NULL);
return HANDLER_DONE;
}
static SLVAL
response_redirect(sl_vm_t* vm, SLVAL self, SLVAL url)
{
response(vm)->status = 302;
response_set_header(vm, self, sl_make_cstring(vm, "Location"), url);
sl_exit(vm, sl_make_int(vm, 0));
return self; /* never reached */
}
static int handle_cache(request_t *req, response_t *resp,
const struct stat *st, const mod_static_conf_t *conf) {
const char *if_mod_since, *if_none_match;
char *etag;
time_t mtime, req_mtime;
int not_modified = 0;
char *buf;
char *cache_control;
mtime = st->st_mtime;
if_mod_since = request_get_header(req, "if-modified-since");
if (if_mod_since != NULL &&
parse_http_date(if_mod_since, &req_mtime) == 0 &&
req_mtime == mtime) {
debug("Resource not modified");
not_modified = 1;
}
buf = response_alloc(resp, 32);
format_http_date(&mtime, buf, 32);
response_set_header(resp, "Last-Modified", buf);
if (conf->enable_etag) {
etag = generate_etag(st);
if (not_modified) {
if_none_match = request_get_header(req, "if-none-match");
if (if_none_match == NULL ||
strcmp(etag, if_none_match) != 0) {
not_modified = 0;
}
}
response_set_header(resp, "ETag", etag);
}
if (conf->expire_hours >= 0) {
buf = response_alloc(resp, 32);
mtime += conf->expire_hours * 3600;
format_http_date(&mtime, buf, 32);
response_set_header(resp, "Expires", buf);
cache_control = response_alloc(resp, 20);
snprintf(cache_control, 20, "max-age=%d", conf->expire_hours * 3600);
} else {
cache_control = "no-cache";
}
response_set_header(resp, "Cache-Control", cache_control);
return not_modified;
}
static SLVAL
response_set_cookie(sl_vm_t* vm, SLVAL self, SLVAL name, SLVAL value)
{
SLVAL header;
sl_expect(vm, name, vm->lib.String);
sl_expect(vm, value, vm->lib.String);
name = sl_string_url_encode(vm, name);
value = sl_string_url_encode(vm, value);
header = name;
header = sl_string_concat(vm, header, sl_make_cstring(vm, "="));
header = sl_string_concat(vm, header, value);
return response_set_header(vm, self, sl_make_cstring(vm, "Set-Cookie"), header);
}
int static_file_handle(request_t *req, response_t *resp,
handler_ctx_t *ctx) {
mod_static_conf_t *conf;
char path[2048];
int fd = -1, res, use_301;
struct stat st;
size_t len, pathlen, filesize, fileoffset;
ctx_state_t val;
conf = (mod_static_conf_t*) ctx->conf;
len = strlen(conf->root);
strncpy(path, conf->root, 2048);
if (path[len - 1] == '/') {
path[len - 1] = '\0';
}
if (req->path[0] != '/') {
return response_send_status(resp, STATUS_BAD_REQUEST);
}
strncat(path, req->path, 2048 - len);
debug("Request path: %s, real file path: %s", req->path, path);
res = try_open_file(path, &fd, &st);
if (res < 0) {
return static_file_handle_error(resp, fd);
} else if (res > 0) { // Is a directory, try index files.
pathlen = strlen(path);
use_301 = 0;
if (path[pathlen - 1] != '/') {
path[pathlen] = '/';
path[pathlen + 1] = '\0';
pathlen++;
use_301 = 1;
}
//for (i = 0; i < 10 && res != 0 && conf->index[i] != NULL; i++) {
// path[pathlen] = '\0';
// strncat(path, conf->index[i], 2048 - pathlen);
// res = try_open_file(path, &fd, &st);
//}
path[pathlen] = '\0';
strncat(path, conf->index, 2048 - pathlen);
res = try_open_file(path, &fd, &st);
path[pathlen] = '\0';
if (res != 0) {
if (conf->enable_list_dir) {
if (use_301) {
// TODO Support HTTPS
snprintf(path, 2048, "http://%s%s/", req->host, req->path);
response_set_header(resp, "Location", path);
resp->status = STATUS_MOVED;
resp->content_length = 0;
response_send_headers(resp, NULL);
return HANDLER_DONE;
}
show_hidden_file = conf->show_hidden_file;
return static_file_listdir(resp, req->path, path);
} else {
return static_file_handle_error(resp, fd);
}
}
}
fileoffset = 0;
filesize = st.st_size;
res = handle_range(req, resp, &fileoffset, &filesize);
if (res < 0) {
resp->status = STATUS_OK;
} else if (res == 0) {
resp->status = STATUS_PARTIAL_CONTENT;
} else {
return response_send_status(resp, STATUS_RANGE_NOT_SATISFIABLE);
}
resp->content_length = filesize;
handle_content_type(resp, path);
if (handle_cache(req, resp, &st, conf)) {
return response_send_status(resp, STATUS_NOT_MODIFIED);
}
val.as_int = fd;
context_push(ctx, val);
val.as_long = fileoffset;
context_push(ctx, val);
val.as_long = filesize;
context_push(ctx, val);
debug("sending headers");
response_send_headers(resp, static_file_write_content);
return HANDLER_UNFISHED;
}