forked from jiuyuan/JYCache
366 lines
9.9 KiB
C++
366 lines
9.9 KiB
C++
/*
|
|
* s3fs - FUSE-based file system backed by Amazon S3
|
|
*
|
|
* Copyright(C) 2007 Randy Rizun <rrizun@gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef S3FS_TYPES_H_
|
|
#define S3FS_TYPES_H_
|
|
|
|
#include <cstdlib>
|
|
#include <cstring>
|
|
#include <string>
|
|
#include <map>
|
|
#include <list>
|
|
#include <vector>
|
|
|
|
//
|
|
// For extended attribute
|
|
// (HAVE_XXX symbols are defined in config.h)
|
|
//
|
|
#ifdef HAVE_SYS_EXTATTR_H
|
|
#include <sys/extattr.h>
|
|
#elif HAVE_ATTR_XATTR_H
|
|
#include <attr/xattr.h>
|
|
#elif HAVE_SYS_XATTR_H
|
|
#include <sys/xattr.h>
|
|
#endif
|
|
|
|
//-------------------------------------------------------------------
|
|
// xattrs_t
|
|
//-------------------------------------------------------------------
|
|
//
|
|
// Header "x-amz-meta-xattr" is for extended attributes.
|
|
// This header is url encoded string which is json formatted.
|
|
// x-amz-meta-xattr:urlencode({"xattr-1":"base64(value-1)","xattr-2":"base64(value-2)","xattr-3":"base64(value-3)"})
|
|
//
|
|
typedef std::map<std::string, std::string> xattrs_t;
|
|
|
|
//-------------------------------------------------------------------
|
|
// acl_t
|
|
//-------------------------------------------------------------------
|
|
enum class acl_t{
|
|
PRIVATE,
|
|
PUBLIC_READ,
|
|
PUBLIC_READ_WRITE,
|
|
AWS_EXEC_READ,
|
|
AUTHENTICATED_READ,
|
|
BUCKET_OWNER_READ,
|
|
BUCKET_OWNER_FULL_CONTROL,
|
|
LOG_DELIVERY_WRITE,
|
|
UNKNOWN
|
|
};
|
|
|
|
inline const char* str(acl_t value)
|
|
{
|
|
switch(value){
|
|
case acl_t::PRIVATE:
|
|
return "private";
|
|
case acl_t::PUBLIC_READ:
|
|
return "public-read";
|
|
case acl_t::PUBLIC_READ_WRITE:
|
|
return "public-read-write";
|
|
case acl_t::AWS_EXEC_READ:
|
|
return "aws-exec-read";
|
|
case acl_t::AUTHENTICATED_READ:
|
|
return "authenticated-read";
|
|
case acl_t::BUCKET_OWNER_READ:
|
|
return "bucket-owner-read";
|
|
case acl_t::BUCKET_OWNER_FULL_CONTROL:
|
|
return "bucket-owner-full-control";
|
|
case acl_t::LOG_DELIVERY_WRITE:
|
|
return "log-delivery-write";
|
|
case acl_t::UNKNOWN:
|
|
return nullptr;
|
|
}
|
|
abort();
|
|
}
|
|
|
|
inline acl_t to_acl(const char *acl)
|
|
{
|
|
if(0 == strcmp(acl, "private")){
|
|
return acl_t::PRIVATE;
|
|
}else if(0 == strcmp(acl, "public-read")){
|
|
return acl_t::PUBLIC_READ;
|
|
}else if(0 == strcmp(acl, "public-read-write")){
|
|
return acl_t::PUBLIC_READ_WRITE;
|
|
}else if(0 == strcmp(acl, "aws-exec-read")){
|
|
return acl_t::AWS_EXEC_READ;
|
|
}else if(0 == strcmp(acl, "authenticated-read")){
|
|
return acl_t::AUTHENTICATED_READ;
|
|
}else if(0 == strcmp(acl, "bucket-owner-read")){
|
|
return acl_t::BUCKET_OWNER_READ;
|
|
}else if(0 == strcmp(acl, "bucket-owner-full-control")){
|
|
return acl_t::BUCKET_OWNER_FULL_CONTROL;
|
|
}else if(0 == strcmp(acl, "log-delivery-write")){
|
|
return acl_t::LOG_DELIVERY_WRITE;
|
|
}else{
|
|
return acl_t::UNKNOWN;
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------
|
|
// sse_type_t
|
|
//-------------------------------------------------------------------
|
|
enum class sse_type_t{
|
|
SSE_DISABLE = 0, // not use server side encrypting
|
|
SSE_S3, // server side encrypting by S3 key
|
|
SSE_C, // server side encrypting by custom key
|
|
SSE_KMS // server side encrypting by kms id
|
|
};
|
|
|
|
enum class signature_type_t {
|
|
V2_ONLY,
|
|
V4_ONLY,
|
|
V2_OR_V4
|
|
};
|
|
|
|
//----------------------------------------------
|
|
// etaglist_t / filepart / untreatedpart
|
|
//----------------------------------------------
|
|
//
|
|
// Etag string and part number pair
|
|
//
|
|
struct etagpair
|
|
{
|
|
std::string etag; // expected etag value
|
|
int part_num; // part number
|
|
|
|
explicit etagpair(const char* petag = nullptr, int part = -1) : etag(petag ? petag : ""), part_num(part) {}
|
|
|
|
~etagpair()
|
|
{
|
|
clear();
|
|
}
|
|
|
|
void clear()
|
|
{
|
|
etag.erase();
|
|
part_num = -1;
|
|
}
|
|
};
|
|
|
|
// Requires pointer stability and thus must be a list not a vector
|
|
typedef std::list<etagpair> etaglist_t;
|
|
|
|
struct petagpool
|
|
{
|
|
// Requires pointer stability and thus must be a list not a vector
|
|
std::list<etagpair> petaglist;
|
|
|
|
~petagpool()
|
|
{
|
|
clear();
|
|
}
|
|
|
|
void clear()
|
|
{
|
|
petaglist.clear();
|
|
}
|
|
|
|
etagpair* add(const etagpair& etag_entity)
|
|
{
|
|
petaglist.push_back(etag_entity);
|
|
return &petaglist.back();
|
|
}
|
|
};
|
|
|
|
//
|
|
// Each part information for Multipart upload
|
|
//
|
|
struct filepart
|
|
{
|
|
bool uploaded; // does finish uploading
|
|
std::string etag; // expected etag value
|
|
int fd; // base file(temporary full file) descriptor
|
|
off_t startpos; // seek fd point for uploading
|
|
off_t size; // uploading size
|
|
bool is_copy; // whether is copy multipart
|
|
etagpair* petag; // use only parallel upload
|
|
char* buf; // user buf. if this not null, it will not write to the file
|
|
|
|
explicit filepart(bool is_uploaded = false, int _fd = -1, off_t part_start = 0, off_t part_size = -1, bool is_copy_part = false, etagpair* petagpair = nullptr, char* userBuf = nullptr) : uploaded(false), fd(_fd), startpos(part_start), size(part_size), is_copy(is_copy_part), petag(petagpair), buf(userBuf) {}
|
|
|
|
~filepart()
|
|
{
|
|
clear();
|
|
}
|
|
|
|
void clear()
|
|
{
|
|
uploaded = false;
|
|
etag = "";
|
|
fd = -1;
|
|
startpos = 0;
|
|
size = -1;
|
|
is_copy = false;
|
|
petag = nullptr;
|
|
buf = nullptr;
|
|
}
|
|
|
|
void add_etag_list(etaglist_t& list, int partnum = -1)
|
|
{
|
|
if(-1 == partnum){
|
|
partnum = static_cast<int>(list.size()) + 1;
|
|
}
|
|
list.push_back(etagpair(nullptr, partnum));
|
|
petag = &list.back();
|
|
}
|
|
|
|
void set_etag(etagpair* petagobj)
|
|
{
|
|
petag = petagobj;
|
|
}
|
|
|
|
int get_part_number() const
|
|
{
|
|
if(!petag){
|
|
return -1;
|
|
}
|
|
return petag->part_num;
|
|
}
|
|
};
|
|
|
|
typedef std::vector<filepart> filepart_list_t;
|
|
|
|
//
|
|
// Each part information for Untreated parts
|
|
//
|
|
struct untreatedpart
|
|
{
|
|
off_t start; // untreated start position
|
|
off_t size; // number of untreated bytes
|
|
long untreated_tag; // untreated part tag
|
|
|
|
explicit untreatedpart(off_t part_start = 0, off_t part_size = 0, long part_untreated_tag = 0) : start(part_start), size(part_size), untreated_tag(part_untreated_tag)
|
|
{
|
|
if(part_start < 0 || part_size <= 0){
|
|
clear(); // wrong parameter, so clear value.
|
|
}
|
|
}
|
|
|
|
~untreatedpart()
|
|
{
|
|
clear();
|
|
}
|
|
|
|
void clear()
|
|
{
|
|
start = 0;
|
|
size = 0;
|
|
untreated_tag = 0;
|
|
}
|
|
|
|
// [NOTE]
|
|
// Check if the areas overlap
|
|
// However, even if the areas do not overlap, this method returns true if areas are adjacent.
|
|
//
|
|
bool check_overlap(off_t chk_start, off_t chk_size)
|
|
{
|
|
if(chk_start < 0 || chk_size <= 0 || start < 0 || size <= 0 || (chk_start + chk_size) < start || (start + size) < chk_start){
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool stretch(off_t add_start, off_t add_size, long tag)
|
|
{
|
|
if(!check_overlap(add_start, add_size)){
|
|
return false;
|
|
}
|
|
off_t new_start = std::min(start, add_start);
|
|
off_t new_next_start = std::max((start + size), (add_start + add_size));
|
|
|
|
start = new_start;
|
|
size = new_next_start - new_start;
|
|
untreated_tag = tag;
|
|
|
|
return true;
|
|
}
|
|
};
|
|
|
|
typedef std::vector<untreatedpart> untreated_list_t;
|
|
|
|
//
|
|
// Information on each part of multipart upload
|
|
//
|
|
struct mp_part
|
|
{
|
|
off_t start;
|
|
off_t size;
|
|
int part_num; // Set only for information to upload
|
|
|
|
explicit mp_part(off_t set_start = 0, off_t set_size = 0, int part = 0) : start(set_start), size(set_size), part_num(part) {}
|
|
};
|
|
|
|
typedef std::vector<struct mp_part> mp_part_list_t;
|
|
|
|
inline off_t total_mp_part_list(const mp_part_list_t& mplist)
|
|
{
|
|
off_t size = 0;
|
|
for(mp_part_list_t::const_iterator iter = mplist.begin(); iter != mplist.end(); ++iter){
|
|
size += iter->size;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
//
|
|
// Rename directory struct
|
|
//
|
|
struct mvnode
|
|
{
|
|
mvnode(std::string old_path, std::string new_path, bool is_dir, bool is_normdir)
|
|
: old_path(std::move(old_path))
|
|
, new_path(std::move(new_path))
|
|
, is_dir(is_dir)
|
|
, is_normdir(is_normdir)
|
|
{}
|
|
std::string old_path;
|
|
std::string new_path;
|
|
bool is_dir;
|
|
bool is_normdir;
|
|
};
|
|
|
|
//-------------------------------------------------------------------
|
|
// mimes_t
|
|
//-------------------------------------------------------------------
|
|
struct case_insensitive_compare_func
|
|
{
|
|
bool operator()(const std::string& a, const std::string& b) const {
|
|
return strcasecmp(a.c_str(), b.c_str()) < 0;
|
|
}
|
|
};
|
|
typedef std::map<std::string, std::string, case_insensitive_compare_func> mimes_t;
|
|
|
|
//-------------------------------------------------------------------
|
|
// Typedefs specialized for use
|
|
//-------------------------------------------------------------------
|
|
typedef std::vector<std::string> readline_t;
|
|
typedef std::map<std::string, std::string> kvmap_t;
|
|
typedef std::map<std::string, kvmap_t> bucketkvmap_t;
|
|
|
|
#endif // S3FS_TYPES_H_
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* End:
|
|
* vim600: expandtab sw=4 ts=4 fdm=marker
|
|
* vim<600: expandtab sw=4 ts=4
|
|
*/
|