//
// Returns it whether it is an object with need checking in detail.
// If this function returns true, the object is possible to be directory
// and is needed checking detail(searching sub object).
//
bool is_need_check_obj_detail(headers_t& meta)
{
headers_t::const_iterator iter;
// directory object is Content-Length as 0.
if(0 != get_size(meta)){
return false;
}
// if the object has x-amz-meta information, checking is no more.
if(meta.end() != meta.find("x-amz-meta-mode") ||
meta.end() != meta.find("x-amz-meta-mtime") ||
meta.end() != meta.find("x-amz-meta-uid") ||
meta.end() != meta.find("x-amz-meta-gid") ||
meta.end() != meta.find("x-amz-meta-owner") ||
meta.end() != meta.find("x-amz-meta-group") ||
meta.end() != meta.find("x-amz-meta-permissions") )
{
return false;
}
// if there is not Content-Type, or Content-Type is "x-directory",
// checking is no more.
if(meta.end() == (iter = find_content_type(meta))){
return false;
}
if("application/x-directory" == (*iter).second){
return false;
}
return true;
}
mode_t get_mode(headers_t& meta, const char* path, bool checkdir, bool forcedir)
{
mode_t mode = 0;
bool isS3sync = false;
headers_t::const_iterator iter;
if(meta.end() != (iter = meta.find("x-amz-meta-mode"))){
mode = get_mode((*iter).second.c_str());
}else{
if(meta.end() != (iter = meta.find("x-amz-meta-permissions"))){ // for s3sync
mode = get_mode((*iter).second.c_str());
isS3sync = true;
}
}
// Checking the bitmask, if the last 3 bits are all zero then process as a regular
// file type (S_IFDIR or S_IFREG), otherwise return mode unmodified so that S_IFIFO,
// S_IFSOCK, S_IFCHR, S_IFLNK and S_IFBLK devices can be processed properly by fuse.
if(!(mode & S_IFMT)){
if(!isS3sync){
if(checkdir){
if(forcedir){
mode |= S_IFDIR;
}else{
if(meta.end() != (iter = find_content_type(meta))){
string strConType = (*iter).second;
// Leave just the mime type, remove any optional parameters (eg charset)
string::size_type pos = strConType.find(";");
if(string::npos != pos){
strConType = strConType.substr(0, pos);
}
if(strConType == "application/x-directory"){
mode |= S_IFDIR;
}else if(path && 0 < strlen(path) && '/' == path[strlen(path) - 1]){
if(strConType == "binary/octet-stream" || strConType == "application/octet-stream"){
mode |= S_IFDIR;
}else{
mode |= S_IFREG;
}
}else{
mode |= S_IFREG;
}
}else{
mode |= S_IFREG;
}
}
}
}else{
if(!checkdir){
// cut dir/reg flag.
mode &= ~S_IFDIR;
mode &= ~S_IFREG;
}
}
}
return mode;
}
gid_t get_gid(headers_t& meta)
{
headers_t::const_iterator iter;
if(meta.end() == (iter = meta.find("x-amz-meta-gid"))){
if(meta.end() == (iter = meta.find("x-amz-meta-group"))){ // for s3sync
return 0;
}
}
return get_gid((*iter).second.c_str());
}
inline headers_t::const_iterator find_content_type(headers_t& meta)
{
headers_t::const_iterator iter;
if(meta.end() == (iter = meta.find("Content-Type"))){
if(meta.end() == (iter = meta.find("Content-type"))){
if(meta.end() == (iter = meta.find("content-type"))){
iter = meta.find("content-Type");
}
}
}
return iter;
}
time_t get_lastmodified(headers_t& meta)
{
headers_t::const_iterator iter;
if(meta.end() == (iter = meta.find("Last-Modified"))){
return 0;
}
return get_lastmodified((*iter).second.c_str());
}
off_t get_size(headers_t& meta)
{
headers_t::const_iterator iter;
if(meta.end() == (iter = meta.find("Content-Length"))){
return 0;
}
return get_size((*iter).second.c_str());
}
time_t get_mtime(headers_t& meta, bool overcheck)
{
headers_t::const_iterator iter;
if(meta.end() == (iter = meta.find("x-amz-meta-mtime"))){
if(overcheck){
return get_lastmodified(meta);
}
return 0;
}
return get_mtime((*iter).second.c_str());
}
