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s3fs-fuse/src/curl.cpp

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/*
* 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.
*/
#include <cstdio>
#include <cstdlib>
#include <ctime>
#include <errno.h>
#include <unistd.h>
#include <fstream>
#include <sstream>
#include <algorithm>
#include "common.h"
#include "s3fs.h"
#include "s3fs_logger.h"
#include "curl.h"
#include "curl_multi.h"
#include "curl_util.h"
#include "s3fs_auth.h"
#include "autolock.h"
#include "curl_handlerpool.h"
#include "s3fs_cred.h"
#include "s3fs_util.h"
#include "string_util.h"
#include "addhead.h"
//-------------------------------------------------------------------
// Symbols
//-------------------------------------------------------------------
static const char EMPTY_PAYLOAD_HASH[] = "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855";
static const char EMPTY_MD5_BASE64_HASH[] = "1B2M2Y8AsgTpgAmY7PhCfg==";
//-------------------------------------------------------------------
// Class S3fsCurl
//-------------------------------------------------------------------
static const int MULTIPART_SIZE = 10 * 1024 * 1024;
static const int GET_OBJECT_RESPONSE_LIMIT = 1024;
// [NOTE] about default mime.types file
// If no mime.types file is specified in the mime option, s3fs
// will look for /etc/mime.types on all operating systems and
// load mime information.
// However, in the case of macOS, when this file does not exist,
// it tries to detect the /etc/apache2/mime.types file.
// The reason for this is that apache2 is preinstalled on macOS,
// and the mime.types file is expected to exist in this path.
// If the mime.types file is not found, s3fs will exit with an
// error.
//
static const char DEFAULT_MIME_FILE[] = "/etc/mime.types";
static const char SPECIAL_DARWIN_MIME_FILE[] = "/etc/apache2/mime.types";
// [NOTICE]
// This symbol is for libcurl under 7.23.0
#ifndef CURLSHE_NOT_BUILT_IN
#define CURLSHE_NOT_BUILT_IN 5
#endif
//-------------------------------------------------------------------
// Class S3fsCurl
//-------------------------------------------------------------------
const long S3fsCurl::S3FSCURL_RESPONSECODE_NOTSET;
const long S3fsCurl::S3FSCURL_RESPONSECODE_FATAL_ERROR;
const int S3fsCurl::S3FSCURL_PERFORM_RESULT_NOTSET;
pthread_mutex_t S3fsCurl::curl_warnings_lock;
pthread_mutex_t S3fsCurl::curl_handles_lock;
S3fsCurl::callback_locks_t S3fsCurl::callback_locks;
bool S3fsCurl::is_initglobal_done = false;
CurlHandlerPool* S3fsCurl::sCurlPool = NULL;
int S3fsCurl::sCurlPoolSize = 32;
CURLSH* S3fsCurl::hCurlShare = NULL;
bool S3fsCurl::is_cert_check = true; // default
bool S3fsCurl::is_dns_cache = true; // default
bool S3fsCurl::is_ssl_session_cache= true; // default
long S3fsCurl::connect_timeout = 300; // default
time_t S3fsCurl::readwrite_timeout = 120; // default
int S3fsCurl::retries = 5; // default
bool S3fsCurl::is_public_bucket = false;
acl_t S3fsCurl::default_acl = acl_t::PRIVATE;
std::string S3fsCurl::storage_class = "STANDARD";
sseckeylist_t S3fsCurl::sseckeys;
std::string S3fsCurl::ssekmsid;
sse_type_t S3fsCurl::ssetype = sse_type_t::SSE_DISABLE;
bool S3fsCurl::is_content_md5 = false;
bool S3fsCurl::is_verbose = false;
bool S3fsCurl::is_dump_body = false;
S3fsCred* S3fsCurl::ps3fscred = NULL;
long S3fsCurl::ssl_verify_hostname = 1; // default(original code...)
// protected by curl_warnings_lock
bool S3fsCurl::curl_warnings_once = false;
// protected by curl_handles_lock
curltime_t S3fsCurl::curl_times;
curlprogress_t S3fsCurl::curl_progress;
std::string S3fsCurl::curl_ca_bundle;
mimes_t S3fsCurl::mimeTypes;
std::string S3fsCurl::userAgent;
int S3fsCurl::max_parallel_cnt = 5; // default
int S3fsCurl::max_multireq = 20; // default
off_t S3fsCurl::multipart_size = MULTIPART_SIZE; // default
off_t S3fsCurl::multipart_copy_size = 512 * 1024 * 1024; // default
signature_type_t S3fsCurl::signature_type = V2_OR_V4; // default
bool S3fsCurl::is_unsigned_payload = false; // default
bool S3fsCurl::is_ua = true; // default
bool S3fsCurl::listobjectsv2 = false; // default
bool S3fsCurl::requester_pays = false; // default
std::string S3fsCurl::proxy_url;
bool S3fsCurl::proxy_http = false;
std::string S3fsCurl::proxy_userpwd;
//-------------------------------------------------------------------
// Class methods for S3fsCurl
//-------------------------------------------------------------------
bool S3fsCurl::InitS3fsCurl()
{
pthread_mutexattr_t attr;
pthread_mutexattr_init(&attr);
#if S3FS_PTHREAD_ERRORCHECK
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
#endif
if(0 != pthread_mutex_init(&S3fsCurl::curl_warnings_lock, &attr)){
return false;
}
if(0 != pthread_mutex_init(&S3fsCurl::curl_handles_lock, &attr)){
return false;
}
if(0 != pthread_mutex_init(&S3fsCurl::callback_locks.dns, &attr)){
return false;
}
if(0 != pthread_mutex_init(&S3fsCurl::callback_locks.ssl_session, &attr)){
return false;
}
if(!S3fsCurl::InitGlobalCurl()){
return false;
}
if(!S3fsCurl::InitShareCurl()){
return false;
}
if(!S3fsCurl::InitCryptMutex()){
return false;
}
// [NOTE]
// sCurlPoolSize must be over parallel(or multireq) count.
//
if(sCurlPoolSize < std::max(GetMaxParallelCount(), GetMaxMultiRequest())){
sCurlPoolSize = std::max(GetMaxParallelCount(), GetMaxMultiRequest());
}
sCurlPool = new CurlHandlerPool(sCurlPoolSize);
if (!sCurlPool->Init()) {
return false;
}
return true;
}
bool S3fsCurl::DestroyS3fsCurl()
{
bool result = true;
if(!S3fsCurl::DestroyCryptMutex()){
result = false;
}
if(!sCurlPool->Destroy()){
result = false;
}
delete sCurlPool;
sCurlPool = NULL;
if(!S3fsCurl::DestroyShareCurl()){
result = false;
}
if(!S3fsCurl::DestroyGlobalCurl()){
result = false;
}
if(0 != pthread_mutex_destroy(&S3fsCurl::callback_locks.dns)){
result = false;
}
if(0 != pthread_mutex_destroy(&S3fsCurl::callback_locks.ssl_session)){
result = false;
}
if(0 != pthread_mutex_destroy(&S3fsCurl::curl_handles_lock)){
result = false;
}
if(0 != pthread_mutex_destroy(&S3fsCurl::curl_warnings_lock)){
result = false;
}
return result;
}
bool S3fsCurl::InitGlobalCurl()
{
if(S3fsCurl::is_initglobal_done){
return false;
}
if(CURLE_OK != curl_global_init(CURL_GLOBAL_ALL)){
S3FS_PRN_ERR("init_curl_global_all returns error.");
return false;
}
S3fsCurl::is_initglobal_done = true;
return true;
}
bool S3fsCurl::DestroyGlobalCurl()
{
if(!S3fsCurl::is_initglobal_done){
return false;
}
curl_global_cleanup();
S3fsCurl::is_initglobal_done = false;
return true;
}
bool S3fsCurl::InitShareCurl()
{
CURLSHcode nSHCode;
if(!S3fsCurl::is_dns_cache && !S3fsCurl::is_ssl_session_cache){
S3FS_PRN_INFO("Curl does not share DNS data.");
return true;
}
if(S3fsCurl::hCurlShare){
S3FS_PRN_WARN("already initiated.");
return false;
}
if(NULL == (S3fsCurl::hCurlShare = curl_share_init())){
S3FS_PRN_ERR("curl_share_init failed");
return false;
}
if(CURLSHE_OK != (nSHCode = curl_share_setopt(S3fsCurl::hCurlShare, CURLSHOPT_LOCKFUNC, S3fsCurl::LockCurlShare))){
S3FS_PRN_ERR("curl_share_setopt(LOCKFUNC) returns %d(%s)", nSHCode, curl_share_strerror(nSHCode));
return false;
}
if(CURLSHE_OK != (nSHCode = curl_share_setopt(S3fsCurl::hCurlShare, CURLSHOPT_UNLOCKFUNC, S3fsCurl::UnlockCurlShare))){
S3FS_PRN_ERR("curl_share_setopt(UNLOCKFUNC) returns %d(%s)", nSHCode, curl_share_strerror(nSHCode));
return false;
}
if(S3fsCurl::is_dns_cache){
nSHCode = curl_share_setopt(S3fsCurl::hCurlShare, CURLSHOPT_SHARE, CURL_LOCK_DATA_DNS);
if(CURLSHE_OK != nSHCode && CURLSHE_BAD_OPTION != nSHCode && CURLSHE_NOT_BUILT_IN != nSHCode){
S3FS_PRN_ERR("curl_share_setopt(DNS) returns %d(%s)", nSHCode, curl_share_strerror(nSHCode));
return false;
}else if(CURLSHE_BAD_OPTION == nSHCode || CURLSHE_NOT_BUILT_IN == nSHCode){
S3FS_PRN_WARN("curl_share_setopt(DNS) returns %d(%s), but continue without shared dns data.", nSHCode, curl_share_strerror(nSHCode));
}
}
if(S3fsCurl::is_ssl_session_cache){
nSHCode = curl_share_setopt(S3fsCurl::hCurlShare, CURLSHOPT_SHARE, CURL_LOCK_DATA_SSL_SESSION);
if(CURLSHE_OK != nSHCode && CURLSHE_BAD_OPTION != nSHCode && CURLSHE_NOT_BUILT_IN != nSHCode){
S3FS_PRN_ERR("curl_share_setopt(SSL SESSION) returns %d(%s)", nSHCode, curl_share_strerror(nSHCode));
return false;
}else if(CURLSHE_BAD_OPTION == nSHCode || CURLSHE_NOT_BUILT_IN == nSHCode){
S3FS_PRN_WARN("curl_share_setopt(SSL SESSION) returns %d(%s), but continue without shared ssl session data.", nSHCode, curl_share_strerror(nSHCode));
}
}
if(CURLSHE_OK != (nSHCode = curl_share_setopt(S3fsCurl::hCurlShare, CURLSHOPT_USERDATA, &S3fsCurl::callback_locks))){
S3FS_PRN_ERR("curl_share_setopt(USERDATA) returns %d(%s)", nSHCode, curl_share_strerror(nSHCode));
return false;
}
return true;
}
bool S3fsCurl::DestroyShareCurl()
{
if(!S3fsCurl::hCurlShare){
if(!S3fsCurl::is_dns_cache && !S3fsCurl::is_ssl_session_cache){
return true;
}
S3FS_PRN_WARN("already destroy share curl.");
return false;
}
if(CURLSHE_OK != curl_share_cleanup(S3fsCurl::hCurlShare)){
return false;
}
S3fsCurl::hCurlShare = NULL;
return true;
}
void S3fsCurl::LockCurlShare(CURL* handle, curl_lock_data nLockData, curl_lock_access laccess, void* useptr)
{
if(!hCurlShare){
return;
}
S3fsCurl::callback_locks_t* locks = static_cast<S3fsCurl::callback_locks_t*>(useptr);
int result;
if(CURL_LOCK_DATA_DNS == nLockData){
if(0 != (result = pthread_mutex_lock(&locks->dns))){
S3FS_PRN_CRIT("pthread_mutex_lock returned: %d", result);
abort();
}
}else if(CURL_LOCK_DATA_SSL_SESSION == nLockData){
if(0 != (result = pthread_mutex_lock(&locks->ssl_session))){
S3FS_PRN_CRIT("pthread_mutex_lock returned: %d", result);
abort();
}
}
}
void S3fsCurl::UnlockCurlShare(CURL* handle, curl_lock_data nLockData, void* useptr)
{
if(!hCurlShare){
return;
}
S3fsCurl::callback_locks_t* locks = static_cast<S3fsCurl::callback_locks_t*>(useptr);
int result;
if(CURL_LOCK_DATA_DNS == nLockData){
if(0 != (result = pthread_mutex_unlock(&locks->dns))){
S3FS_PRN_CRIT("pthread_mutex_unlock returned: %d", result);
abort();
}
}else if(CURL_LOCK_DATA_SSL_SESSION == nLockData){
if(0 != (result = pthread_mutex_unlock(&locks->ssl_session))){
S3FS_PRN_CRIT("pthread_mutex_unlock returned: %d", result);
abort();
}
}
}
bool S3fsCurl::InitCryptMutex()
{
return s3fs_init_crypt_mutex();
}
bool S3fsCurl::DestroyCryptMutex()
{
return s3fs_destroy_crypt_mutex();
}
// homegrown timeout mechanism
int S3fsCurl::CurlProgress(void *clientp, double dltotal, double dlnow, double ultotal, double ulnow)
{
CURL* curl = static_cast<CURL*>(clientp);
time_t now = time(0);
progress_t p(dlnow, ulnow);
AutoLock lock(&S3fsCurl::curl_handles_lock);
// any progress?
if(p != S3fsCurl::curl_progress[curl]){
// yes!
S3fsCurl::curl_times[curl] = now;
S3fsCurl::curl_progress[curl] = p;
}else{
// timeout?
if(now - S3fsCurl::curl_times[curl] > readwrite_timeout){
S3FS_PRN_ERR("timeout now: %lld, curl_times[curl]: %lld, readwrite_timeout: %lld",
static_cast<long long>(now), static_cast<long long>((S3fsCurl::curl_times[curl])), static_cast<long long>(readwrite_timeout));
return CURLE_ABORTED_BY_CALLBACK;
}
}
return 0;
}
bool S3fsCurl::InitCredentialObject(S3fsCred* pcredobj)
{
// Set the only Credential object
if(!pcredobj || S3fsCurl::ps3fscred){
S3FS_PRN_ERR("Unable to set the only Credential object.");
return false;
}
S3fsCurl::ps3fscred = pcredobj;
return true;
}
bool S3fsCurl::InitMimeType(const std::string& strFile)
{
std::string MimeFile;
if(!strFile.empty()){
MimeFile = strFile;
}else{
// search default mime.types
std::string errPaths = DEFAULT_MIME_FILE;
struct stat st;
if(0 == stat(DEFAULT_MIME_FILE, &st)){
MimeFile = DEFAULT_MIME_FILE;
}else if(compare_sysname("Darwin")){
// for macOS, search another default file.
if(0 == stat(SPECIAL_DARWIN_MIME_FILE, &st)){
MimeFile = SPECIAL_DARWIN_MIME_FILE;
}else{
errPaths += " and ";
errPaths += SPECIAL_DARWIN_MIME_FILE;
}
}
if(MimeFile.empty()){
S3FS_PRN_WARN("Could not find mime.types files, you have to create file(%s) or specify mime option for existing mime.types file.", errPaths.c_str());
return false;
}
}
S3FS_PRN_DBG("Try to load mime types from %s file.", MimeFile.c_str());
std::ifstream MT(MimeFile.c_str());
if(MT.good()){
S3FS_PRN_DBG("The old mime types are cleared to load new mime types.");
S3fsCurl::mimeTypes.clear();
std::string line;
while(getline(MT, line)){
if(line.empty()){
continue;
}
if(line[0]=='#'){
continue;
}
std::istringstream tmp(line);
std::string mimeType;
tmp >> mimeType;
std::string ext;
while(tmp >> ext){
S3fsCurl::mimeTypes[ext] = mimeType;
}
}
S3FS_PRN_INIT_INFO("Loaded mime information from %s", MimeFile.c_str());
}else{
S3FS_PRN_WARN("Could not load mime types from %s, please check the existence and permissions of this file.", MimeFile.c_str());
return false;
}
return true;
}
void S3fsCurl::InitUserAgent()
{
if(S3fsCurl::userAgent.empty()){
S3fsCurl::userAgent = "s3fs/";
S3fsCurl::userAgent += VERSION;
S3fsCurl::userAgent += " (commit hash ";
S3fsCurl::userAgent += COMMIT_HASH_VAL;
S3fsCurl::userAgent += "; ";
S3fsCurl::userAgent += s3fs_crypt_lib_name();
S3fsCurl::userAgent += ")";
S3fsCurl::userAgent += instance_name;
}
}
//
// @param s e.g., "index.html"
// @return e.g., "text/html"
//
std::string S3fsCurl::LookupMimeType(const std::string& name)
{
if(!name.empty() && name[name.size() - 1] == '/'){
return "application/x-directory";
}
std::string result("application/octet-stream");
std::string::size_type last_pos = name.find_last_of('.');
std::string::size_type first_pos = name.find_first_of('.');
std::string prefix, ext, ext2;
// No dots in name, just return
if(last_pos == std::string::npos){
return result;
}
// extract the last extension
ext = name.substr(1+last_pos, std::string::npos);
if (last_pos != std::string::npos) {
// one dot was found, now look for another
if (first_pos != std::string::npos && first_pos < last_pos) {
prefix = name.substr(0, last_pos);
// Now get the second to last file extension
std::string::size_type next_pos = prefix.find_last_of('.');
if (next_pos != std::string::npos) {
ext2 = prefix.substr(1+next_pos, std::string::npos);
}
}
}
// if we get here, then we have an extension (ext)
mimes_t::const_iterator iter = S3fsCurl::mimeTypes.find(ext);
// if the last extension matches a mimeType, then return
// that mime type
if (iter != S3fsCurl::mimeTypes.end()) {
result = (*iter).second;
return result;
}
// return with the default result if there isn't a second extension
if(first_pos == last_pos){
return result;
}
// Didn't find a mime-type for the first extension
// Look for second extension in mimeTypes, return if found
iter = S3fsCurl::mimeTypes.find(ext2);
if (iter != S3fsCurl::mimeTypes.end()) {
result = (*iter).second;
return result;
}
// neither the last extension nor the second-to-last extension
// matched a mimeType, return the default mime type
return result;
}
bool S3fsCurl::LocateBundle()
{
// See if environment variable CURL_CA_BUNDLE is set
// if so, check it, if it is a good path, then set the
// curl_ca_bundle variable to it
if(S3fsCurl::curl_ca_bundle.empty()){
char* CURL_CA_BUNDLE = getenv("CURL_CA_BUNDLE");
if(CURL_CA_BUNDLE != NULL) {
// check for existence and readability of the file
std::ifstream BF(CURL_CA_BUNDLE);
if(!BF.good()){
S3FS_PRN_ERR("%s: file specified by CURL_CA_BUNDLE environment variable is not readable", program_name.c_str());
return false;
}
BF.close();
S3fsCurl::curl_ca_bundle = CURL_CA_BUNDLE;
return true;
}
}else{
// Already set ca bundle variable
return true;
}
// not set via environment variable, look in likely locations
///////////////////////////////////////////
// following comment from curl's (7.21.2) acinclude.m4 file
///////////////////////////////////////////
// dnl CURL_CHECK_CA_BUNDLE
// dnl -------------------------------------------------
// dnl Check if a default ca-bundle should be used
// dnl
// dnl regarding the paths this will scan:
// dnl /etc/ssl/certs/ca-certificates.crt Debian systems
// dnl /etc/pki/tls/certs/ca-bundle.crt Redhat and Mandriva
// dnl /usr/share/ssl/certs/ca-bundle.crt old(er) Redhat
// dnl /usr/local/share/certs/ca-root.crt FreeBSD
// dnl /etc/ssl/cert.pem OpenBSD
// dnl /etc/ssl/certs/ (ca path) SUSE
///////////////////////////////////////////
// Within CURL the above path should have been checked
// according to the OS. Thus, although we do not need
// to check files here, we will only examine some files.
//
std::ifstream BF("/etc/pki/tls/certs/ca-bundle.crt");
if(BF.good()){
BF.close();
S3fsCurl::curl_ca_bundle = "/etc/pki/tls/certs/ca-bundle.crt";
}else{
BF.open("/etc/ssl/certs/ca-certificates.crt");
if(BF.good()){
BF.close();
S3fsCurl::curl_ca_bundle = "/etc/ssl/certs/ca-certificates.crt";
}else{
BF.open("/usr/share/ssl/certs/ca-bundle.crt");
if(BF.good()){
BF.close();
S3fsCurl::curl_ca_bundle = "/usr/share/ssl/certs/ca-bundle.crt";
}else{
BF.open("/usr/local/share/certs/ca-root.crt");
if(BF.good()){
BF.close();
S3fsCurl::curl_ca_bundle = "/usr/share/ssl/certs/ca-bundle.crt";
}else{
S3FS_PRN_ERR("%s: /.../ca-bundle.crt is not readable", program_name.c_str());
return false;
}
}
}
}
return true;
}
size_t S3fsCurl::WriteMemoryCallback(void* ptr, size_t blockSize, size_t numBlocks, void* data)
{
BodyData* body = static_cast<BodyData*>(data);
if(!body->Append(ptr, blockSize, numBlocks)){
S3FS_PRN_CRIT("BodyData.Append() returned false.");
S3FS_FUSE_EXIT();
return -1;
}
return (blockSize * numBlocks);
}
size_t S3fsCurl::ReadCallback(void* ptr, size_t size, size_t nmemb, void* userp)
{
S3fsCurl* pCurl = static_cast<S3fsCurl*>(userp);
if(1 > (size * nmemb)){
return 0;
}
if(0 >= pCurl->postdata_remaining){
return 0;
}
size_t copysize = std::min(static_cast<off_t>(size * nmemb), pCurl->postdata_remaining);
memcpy(ptr, pCurl->postdata, copysize);
pCurl->postdata_remaining = (pCurl->postdata_remaining > static_cast<off_t>(copysize) ? (pCurl->postdata_remaining - copysize) : 0);
pCurl->postdata += static_cast<size_t>(copysize);
return copysize;
}
size_t S3fsCurl::HeaderCallback(void* data, size_t blockSize, size_t numBlocks, void* userPtr)
{
headers_t* headers = static_cast<headers_t*>(userPtr);
std::string header(static_cast<char*>(data), blockSize * numBlocks);
std::string key;
std::istringstream ss(header);
if(getline(ss, key, ':')){
// Force to lower, only "x-amz"
std::string lkey = key;
transform(lkey.begin(), lkey.end(), lkey.begin(), static_cast<int (*)(int)>(std::tolower));
if(is_prefix(lkey.c_str(), "x-amz")){
key = lkey;
}
std::string value;
getline(ss, value);
(*headers)[key] = trim(value);
}
return blockSize * numBlocks;
}
size_t S3fsCurl::UploadReadCallback(void* ptr, size_t size, size_t nmemb, void* userp)
{
S3fsCurl* pCurl = static_cast<S3fsCurl*>(userp);
if(1 > (size * nmemb)){
return 0;
}
if(-1 == pCurl->partdata.fd || 0 >= pCurl->partdata.size){
return 0;
}
// read size
ssize_t copysize = (size * nmemb) < (size_t)pCurl->partdata.size ? (size * nmemb) : (size_t)pCurl->partdata.size;
ssize_t readbytes;
ssize_t totalread;
// read and set
for(totalread = 0, readbytes = 0; totalread < copysize; totalread += readbytes){
readbytes = pread(pCurl->partdata.fd, &(static_cast<char*>(ptr))[totalread], (copysize - totalread), pCurl->partdata.startpos + totalread);
if(0 == readbytes){
// eof
break;
}else if(-1 == readbytes){
// error
S3FS_PRN_ERR("read file error(%d).", errno);
return 0;
}
}
pCurl->partdata.startpos += totalread;
pCurl->partdata.size -= totalread;
return totalread;
}
size_t S3fsCurl::DownloadWriteCallback(void* ptr, size_t size, size_t nmemb, void* userp)
{
S3fsCurl* pCurl = static_cast<S3fsCurl*>(userp);
if(1 > (size * nmemb)){
return 0;
}
if(-1 == pCurl->partdata.fd || 0 >= pCurl->partdata.size){
return 0;
}
// Buffer initial bytes in case it is an XML error response.
if(pCurl->bodydata.size() < GET_OBJECT_RESPONSE_LIMIT){
pCurl->bodydata.Append(ptr, std::min(size * nmemb, GET_OBJECT_RESPONSE_LIMIT - pCurl->bodydata.size()));
}
// write size
ssize_t copysize = (size * nmemb) < (size_t)pCurl->partdata.size ? (size * nmemb) : (size_t)pCurl->partdata.size;
ssize_t writebytes;
ssize_t totalwrite;
// write
for(totalwrite = 0, writebytes = 0; totalwrite < copysize; totalwrite += writebytes){
writebytes = pwrite(pCurl->partdata.fd, &(static_cast<char*>(ptr))[totalwrite], (copysize - totalwrite), pCurl->partdata.startpos + totalwrite);
if(0 == writebytes){
// eof?
break;
}else if(-1 == writebytes){
// error
S3FS_PRN_ERR("write file error(%d).", errno);
return 0;
}
}
pCurl->partdata.startpos += totalwrite;
pCurl->partdata.size -= totalwrite;
return totalwrite;
}
bool S3fsCurl::SetCheckCertificate(bool isCertCheck)
{
bool old = S3fsCurl::is_cert_check;
S3fsCurl::is_cert_check = isCertCheck;
return old;
}
bool S3fsCurl::SetDnsCache(bool isCache)
{
bool old = S3fsCurl::is_dns_cache;
S3fsCurl::is_dns_cache = isCache;
return old;
}
void S3fsCurl::ResetOffset(S3fsCurl* pCurl)
{
pCurl->partdata.startpos = pCurl->b_partdata_startpos;
pCurl->partdata.size = pCurl->b_partdata_size;
}
bool S3fsCurl::SetSslSessionCache(bool isCache)
{
bool old = S3fsCurl::is_ssl_session_cache;
S3fsCurl::is_ssl_session_cache = isCache;
return old;
}
long S3fsCurl::SetConnectTimeout(long timeout)
{
long old = S3fsCurl::connect_timeout;
S3fsCurl::connect_timeout = timeout;
return old;
}
time_t S3fsCurl::SetReadwriteTimeout(time_t timeout)
{
time_t old = S3fsCurl::readwrite_timeout;
S3fsCurl::readwrite_timeout = timeout;
return old;
}
int S3fsCurl::SetRetries(int count)
{
int old = S3fsCurl::retries;
S3fsCurl::retries = count;
return old;
}
bool S3fsCurl::SetPublicBucket(bool flag)
{
bool old = S3fsCurl::is_public_bucket;
S3fsCurl::is_public_bucket = flag;
return old;
}
acl_t S3fsCurl::SetDefaultAcl(acl_t acl)
{
acl_t old = S3fsCurl::default_acl;
S3fsCurl::default_acl = acl;
return old;
}
acl_t S3fsCurl::GetDefaultAcl()
{
return S3fsCurl::default_acl;
}
std::string S3fsCurl::SetStorageClass(const std::string& storage_class)
{
std::string old = S3fsCurl::storage_class;
S3fsCurl::storage_class = storage_class;
// AWS requires uppercase storage class values
transform(S3fsCurl::storage_class.begin(), S3fsCurl::storage_class.end(), S3fsCurl::storage_class.begin(), ::toupper);
return old;
}
bool S3fsCurl::PushbackSseKeys(const std::string& input)
{
std::string onekey = trim(input);
if(onekey.empty()){
return false;
}
if('#' == onekey[0]){
return false;
}
// make base64 if the key is short enough, otherwise assume it is already so
std::string base64_key;
std::string raw_key;
if(onekey.length() > 256 / 8){
char* p_key;
size_t keylength;
if(NULL != (p_key = reinterpret_cast<char*>(s3fs_decode64(onekey.c_str(), onekey.size(), &keylength)))) {
raw_key = std::string(p_key, keylength);
base64_key = onekey;
delete[] p_key;
} else {
S3FS_PRN_ERR("Failed to convert base64 to SSE-C key %s", onekey.c_str());
return false;
}
} else {
char* pbase64_key;
if(NULL != (pbase64_key = s3fs_base64(reinterpret_cast<const unsigned char*>(onekey.c_str()), onekey.length()))) {
raw_key = onekey;
base64_key = pbase64_key;
delete[] pbase64_key;
} else {
S3FS_PRN_ERR("Failed to convert base64 from SSE-C key %s", onekey.c_str());
return false;
}
}
// make MD5
std::string strMd5;
if(!make_md5_from_binary(raw_key.c_str(), raw_key.length(), strMd5)){
S3FS_PRN_ERR("Could not make MD5 from SSE-C keys(%s).", raw_key.c_str());
return false;
}
// mapped MD5 = SSE Key
sseckeymap_t md5map;
md5map.clear();
md5map[strMd5] = base64_key;
S3fsCurl::sseckeys.push_back(md5map);
return true;
}
sse_type_t S3fsCurl::SetSseType(sse_type_t type)
{
sse_type_t old = S3fsCurl::ssetype;
S3fsCurl::ssetype = type;
return old;
}
bool S3fsCurl::SetSseCKeys(const char* filepath)
{
if(!filepath){
S3FS_PRN_ERR("SSE-C keys filepath is empty.");
return false;
}
struct stat st;
if(0 != stat(filepath, &st)){
S3FS_PRN_ERR("could not open use_sse keys file(%s).", filepath);
return false;
}
if(st.st_mode & (S_IXUSR | S_IRWXG | S_IRWXO)){
S3FS_PRN_ERR("use_sse keys file %s should be 0600 permissions.", filepath);
return false;
}
S3fsCurl::sseckeys.clear();
std::ifstream ssefs(filepath);
if(!ssefs.good()){
S3FS_PRN_ERR("Could not open SSE-C keys file(%s).", filepath);
return false;
}
std::string line;
while(getline(ssefs, line)){
S3fsCurl::PushbackSseKeys(line);
}
if(S3fsCurl::sseckeys.empty()){
S3FS_PRN_ERR("There is no SSE Key in file(%s).", filepath);
return false;
}
return true;
}
bool S3fsCurl::SetSseKmsid(const char* kmsid)
{
if(!kmsid || '\0' == kmsid[0]){
S3FS_PRN_ERR("SSE-KMS kms id is empty.");
return false;
}
S3fsCurl::ssekmsid = kmsid;
return true;
}
// [NOTE]
// Because SSE is set by some options and environment,
// this function check the integrity of the SSE data finally.
bool S3fsCurl::FinalCheckSse()
{
switch(S3fsCurl::ssetype){
case sse_type_t::SSE_DISABLE:
S3fsCurl::ssekmsid.erase();
return true;
case sse_type_t::SSE_S3:
S3fsCurl::ssekmsid.erase();
return true;
case sse_type_t::SSE_C:
if(S3fsCurl::sseckeys.empty()){
S3FS_PRN_ERR("sse type is SSE-C, but there is no custom key.");
return false;
}
S3fsCurl::ssekmsid.erase();
return true;
case sse_type_t::SSE_KMS:
if(S3fsCurl::ssekmsid.empty()){
S3FS_PRN_ERR("sse type is SSE-KMS, but there is no specified kms id.");
return false;
}
if(S3fsCurl::GetSignatureType() == V2_ONLY){
S3FS_PRN_ERR("sse type is SSE-KMS, but signature type is not v4. SSE-KMS require signature v4.");
return false;
}
return true;
}
S3FS_PRN_ERR("sse type is unknown(%d).", static_cast<int>(S3fsCurl::ssetype));
return false;
}
bool S3fsCurl::LoadEnvSseCKeys()
{
char* envkeys = getenv("AWSSSECKEYS");
if(NULL == envkeys){
// nothing to do
return true;
}
S3fsCurl::sseckeys.clear();
std::istringstream fullkeys(envkeys);
std::string onekey;
while(getline(fullkeys, onekey, ':')){
S3fsCurl::PushbackSseKeys(onekey);
}
// cppcheck-suppress unmatchedSuppression
// cppcheck-suppress knownConditionTrueFalse
if(S3fsCurl::sseckeys.empty()){
S3FS_PRN_ERR("There is no SSE Key in environment(AWSSSECKEYS=%s).", envkeys);
return false;
}
return true;
}
bool S3fsCurl::LoadEnvSseKmsid()
{
char* envkmsid = getenv("AWSSSEKMSID");
if(NULL == envkmsid){
// nothing to do
return true;
}
return S3fsCurl::SetSseKmsid(envkmsid);
}
//
// If md5 is empty, returns first(current) sse key.
//
bool S3fsCurl::GetSseKey(std::string& md5, std::string& ssekey)
{
for(sseckeylist_t::const_iterator iter = S3fsCurl::sseckeys.begin(); iter != S3fsCurl::sseckeys.end(); ++iter){
if(md5.empty() || md5 == (*iter).begin()->first){
md5 = iter->begin()->first;
ssekey = iter->begin()->second;
return true;
}
}
return false;
}
bool S3fsCurl::GetSseKeyMd5(size_t pos, std::string& md5)
{
if(S3fsCurl::sseckeys.size() <= static_cast<size_t>(pos)){
return false;
}
size_t cnt = 0;
for(sseckeylist_t::const_iterator iter = S3fsCurl::sseckeys.begin(); iter != S3fsCurl::sseckeys.end(); ++iter, ++cnt){
if(pos == cnt){
md5 = iter->begin()->first;
return true;
}
}
return false;
}
size_t S3fsCurl::GetSseKeyCount()
{
return S3fsCurl::sseckeys.size();
}
bool S3fsCurl::SetContentMd5(bool flag)
{
bool old = S3fsCurl::is_content_md5;
S3fsCurl::is_content_md5 = flag;
return old;
}
bool S3fsCurl::SetVerbose(bool flag)
{
bool old = S3fsCurl::is_verbose;
S3fsCurl::is_verbose = flag;
return old;
}
bool S3fsCurl::SetDumpBody(bool flag)
{
bool old = S3fsCurl::is_dump_body;
S3fsCurl::is_dump_body = flag;
return old;
}
long S3fsCurl::SetSslVerifyHostname(long value)
{
if(0 != value && 1 != value){
return -1;
}
long old = S3fsCurl::ssl_verify_hostname;
S3fsCurl::ssl_verify_hostname = value;
return old;
}
bool S3fsCurl::SetMultipartSize(off_t size)
{
size = size * 1024 * 1024;
if(size < MIN_MULTIPART_SIZE){
return false;
}
S3fsCurl::multipart_size = size;
return true;
}
bool S3fsCurl::SetMultipartCopySize(off_t size)
{
size = size * 1024 * 1024;
if(size < MIN_MULTIPART_SIZE){
return false;
}
S3fsCurl::multipart_copy_size = size;
return true;
}
int S3fsCurl::SetMaxParallelCount(int value)
{
int old = S3fsCurl::max_parallel_cnt;
S3fsCurl::max_parallel_cnt = value;
return old;
}
int S3fsCurl::SetMaxMultiRequest(int max)
{
int old = S3fsCurl::max_multireq;
S3fsCurl::max_multireq = max;
return old;
}
// [NOTE]
// This proxy setting is as same as the "--proxy" option of the curl command,
// and equivalent to the "CURLOPT_PROXY" option of the curl_easy_setopt()
// function.
// However, currently s3fs does not provide another option to set the schema
// and port, so you need to specify these it in this function. (Other than
// this function, there is no means of specifying the schema and port.)
// Therefore, it should be specified "url" as "[<schema>://]<fqdn>[:<port>]".
// s3fs passes this string to curl_easy_setopt() function with "CURLOPT_PROXY".
// If no "schema" is specified, "http" will be used as default, and if no port
// is specified, "443" will be used for "HTTPS" and "1080" otherwise.
// (See the description of "CURLOPT_PROXY" in libcurl document.)
//
bool S3fsCurl::SetProxy(const char* url)
{
if(!url || '\0' == url[0]){
return false;
}
std::string tmpurl = url;
// check schema
bool is_http = true;
size_t pos = 0;
if(std::string::npos != (pos = tmpurl.find("://", pos))){
if(0 == pos){
// no schema string before "://"
return false;
}
pos += strlen("://");
// Check if it is other than "http://"
if(0 != tmpurl.find("http://", 0)){
is_http = false;
}
}else{
// not have schema string
pos = 0;
}
// check fqdn and port number string
if(std::string::npos != (pos = tmpurl.find(":", pos))){
// specify port
if(0 == pos){
// no fqdn(hostname) string before ":"
return false;
}
pos += strlen(":");
if(std::string::npos != tmpurl.find(":", pos)){
// found wrong separator
return false;
}
}
S3fsCurl::proxy_url = tmpurl;
S3fsCurl::proxy_http = is_http;
return true;
}
// [NOTE]
// This function loads proxy credentials(username and passphrase)
// from a file.
// The loaded values is set to "CURLOPT_PROXYUSERPWD" in the
// curl_easy_setopt() function. (But only used if the proxy is HTTP
// schema.)
//
// The file is expected to contain only one valid line:
// ------------------------
// # comment line
// <username>:<passphrase>
// ------------------------
// Lines starting with a '#' character are treated as comments.
// Lines with only space characters and blank lines are ignored.
// If the user name contains spaces, it must be url encoded(ex. %20).
//
bool S3fsCurl::SetProxyUserPwd(const char* file)
{
if(!file || '\0' == file[0]){
return false;
}
if(!S3fsCurl::proxy_userpwd.empty()){
S3FS_PRN_WARN("Already set username and passphrase for proxy.");
return false;
}
std::ifstream credFileStream(file);
if(!credFileStream.good()){
S3FS_PRN_WARN("Could not load username and passphrase for proxy from %s.", file);
return false;
}
std::string userpwd;
std::string line;
while(getline(credFileStream, line)){
line = trim(line);
if(line.empty()){
continue;
}
if(line[0]=='#'){
continue;
}
if(!userpwd.empty()){
S3FS_PRN_WARN("Multiple valid username and passphrase found in %s file. Should specify only one pair.", file);
return false;
}
// check separator for username and passphrase
size_t pos = 0;
if(std::string::npos == (pos = line.find(':', pos))){
S3FS_PRN_WARN("Found string for username and passphrase in %s file does not have separator ':'.", file);
return false;
}
if(0 == pos || (pos + 1) == line.length()){
S3FS_PRN_WARN("Found string for username or passphrase in %s file is empty.", file);
return false;
}
if(std::string::npos != line.find(':', ++pos)){
S3FS_PRN_WARN("Found string for username and passphrase in %s file has multiple separator ':'.", file);
return false;
}
userpwd = line;
}
if(userpwd.empty()){
S3FS_PRN_WARN("No valid username and passphrase found in %s.", file);
return false;
}
S3fsCurl::proxy_userpwd = userpwd;
return true;
}
// cppcheck-suppress unmatchedSuppression
// cppcheck-suppress constParameter
bool S3fsCurl::UploadMultipartPostCallback(S3fsCurl* s3fscurl, void* param)
{
if(!s3fscurl || param){ // this callback does not need a parameter
return false;
}
return s3fscurl->UploadMultipartPostComplete();
}
// cppcheck-suppress unmatchedSuppression
// cppcheck-suppress constParameter
bool S3fsCurl::MixMultipartPostCallback(S3fsCurl* s3fscurl, void* param)
{
if(!s3fscurl || param){ // this callback does not need a parameter
return false;
}
return s3fscurl->MixMultipartPostComplete();
}
S3fsCurl* S3fsCurl::UploadMultipartPostRetryCallback(S3fsCurl* s3fscurl)
{
if(!s3fscurl){
return NULL;
}
// parse and get part_num, upload_id.
std::string upload_id;
std::string part_num_str;
int part_num;
off_t tmp_part_num = 0;
if(!get_keyword_value(s3fscurl->url, "uploadId", upload_id)){
return NULL;
}
upload_id = urlDecode(upload_id); // decode
if(!get_keyword_value(s3fscurl->url, "partNumber", part_num_str)){
return NULL;
}
if(!s3fs_strtoofft(&tmp_part_num, part_num_str.c_str(), /*base=*/ 10)){
return NULL;
}
part_num = static_cast<int>(tmp_part_num);
if(s3fscurl->retry_count >= S3fsCurl::retries){
S3FS_PRN_ERR("Over retry count(%d) limit(%s:%d).", s3fscurl->retry_count, s3fscurl->path.c_str(), part_num);
return NULL;
}
// duplicate request
S3fsCurl* newcurl = new S3fsCurl(s3fscurl->IsUseAhbe());
newcurl->partdata.petag = s3fscurl->partdata.petag;
newcurl->partdata.fd = s3fscurl->partdata.fd;
newcurl->partdata.startpos = s3fscurl->b_partdata_startpos;
newcurl->partdata.size = s3fscurl->b_partdata_size;
newcurl->b_partdata_startpos = s3fscurl->b_partdata_startpos;
newcurl->b_partdata_size = s3fscurl->b_partdata_size;
newcurl->retry_count = s3fscurl->retry_count + 1;
newcurl->op = s3fscurl->op;
newcurl->type = s3fscurl->type;
// setup new curl object
if(0 != newcurl->UploadMultipartPostSetup(s3fscurl->path.c_str(), part_num, upload_id)){
S3FS_PRN_ERR("Could not duplicate curl object(%s:%d).", s3fscurl->path.c_str(), part_num);
delete newcurl;
return NULL;
}
return newcurl;
}
S3fsCurl* S3fsCurl::CopyMultipartPostRetryCallback(S3fsCurl* s3fscurl)
{
if(!s3fscurl){
return NULL;
}
// parse and get part_num, upload_id.
std::string upload_id;
std::string part_num_str;
int part_num;
off_t tmp_part_num = 0;
if(!get_keyword_value(s3fscurl->url, "uploadId", upload_id)){
return NULL;
}
upload_id = urlDecode(upload_id); // decode
if(!get_keyword_value(s3fscurl->url, "partNumber", part_num_str)){
return NULL;
}
if(!s3fs_strtoofft(&tmp_part_num, part_num_str.c_str(), /*base=*/ 10)){
return NULL;
}
part_num = static_cast<int>(tmp_part_num);
if(s3fscurl->retry_count >= S3fsCurl::retries){
S3FS_PRN_ERR("Over retry count(%d) limit(%s:%d).", s3fscurl->retry_count, s3fscurl->path.c_str(), part_num);
return NULL;
}
// duplicate request
S3fsCurl* newcurl = new S3fsCurl(s3fscurl->IsUseAhbe());
newcurl->partdata.petag = s3fscurl->partdata.petag;
newcurl->b_from = s3fscurl->b_from;
newcurl->b_meta = s3fscurl->b_meta;
newcurl->retry_count = s3fscurl->retry_count + 1;
newcurl->op = s3fscurl->op;
newcurl->type = s3fscurl->type;
// setup new curl object
if(0 != newcurl->CopyMultipartPostSetup(s3fscurl->b_from.c_str(), s3fscurl->path.c_str(), part_num, upload_id, s3fscurl->b_meta)){
S3FS_PRN_ERR("Could not duplicate curl object(%s:%d).", s3fscurl->path.c_str(), part_num);
delete newcurl;
return NULL;
}
return newcurl;
}
S3fsCurl* S3fsCurl::MixMultipartPostRetryCallback(S3fsCurl* s3fscurl)
{
if(!s3fscurl){
return NULL;
}
S3fsCurl* pcurl;
if(-1 == s3fscurl->partdata.fd){
pcurl = S3fsCurl::CopyMultipartPostRetryCallback(s3fscurl);
}else{
pcurl = S3fsCurl::UploadMultipartPostRetryCallback(s3fscurl);
}
return pcurl;
}
int S3fsCurl::MapPutErrorResponse(int result)
{
if(result != 0){
return result;
}
// PUT returns 200 status code with something error, thus
// we need to check body.
//
// example error body:
// <?xml version="1.0" encoding="UTF-8"?>
// <Error>
// <Code>AccessDenied</Code>
// <Message>Access Denied</Message>
// <RequestId>E4CA6F6767D6685C</RequestId>
// <HostId>BHzLOATeDuvN8Es1wI8IcERq4kl4dc2A9tOB8Yqr39Ys6fl7N4EJ8sjGiVvu6wLP</HostId>
// </Error>
//
const char* pstrbody = bodydata.str();
std::string code;
if(!pstrbody || simple_parse_xml(pstrbody, bodydata.size(), "Code", code)){
S3FS_PRN_ERR("Put request get 200 status response, but it included error body(or NULL). The request failed during copying the object in S3. Code: %s", code.c_str());
// TODO: parse more specific error from <Code>
result = -EIO;
}
return result;
}
// [NOTE]
// It is a factory method as utility because it requires an S3fsCurl object
// initialized for multipart upload from outside this class.
//
S3fsCurl* S3fsCurl::CreateParallelS3fsCurl(const char* tpath, int fd, off_t start, off_t size, int part_num, bool is_copy, etagpair* petag, const std::string& upload_id, int& result)
{
// duplicate fd
if(!tpath || -1 == fd || start < 0 || size <= 0 || !petag){
S3FS_PRN_ERR("Parameters are wrong: tpath(%s), fd(%d), start(%lld), size(%lld), petag(%s)", SAFESTRPTR(tpath), fd, static_cast<long long int>(start), static_cast<long long int>(size), (petag ? "not null" : "null"));
result = -EIO;
return NULL;
}
result = 0;
S3fsCurl* s3fscurl = new S3fsCurl(true);
if(!is_copy){
s3fscurl->partdata.fd = fd;
s3fscurl->partdata.startpos = start;
s3fscurl->partdata.size = size;
s3fscurl->partdata.is_copy = is_copy;
s3fscurl->partdata.petag = petag; // [NOTE] be careful, the value is set directly
s3fscurl->b_partdata_startpos = s3fscurl->partdata.startpos;
s3fscurl->b_partdata_size = s3fscurl->partdata.size;
S3FS_PRN_INFO3("Upload Part [tpath=%s][start=%lld][size=%lld][part=%d]", SAFESTRPTR(tpath), static_cast<long long>(start), static_cast<long long>(size), part_num);
if(0 != (result = s3fscurl->UploadMultipartPostSetup(tpath, part_num, upload_id))){
S3FS_PRN_ERR("failed uploading part setup(%d)", result);
delete s3fscurl;
return NULL;
}
}else{
headers_t meta;
std::string srcresource;
std::string srcurl;
MakeUrlResource(get_realpath(tpath).c_str(), srcresource, srcurl);
meta["x-amz-copy-source"] = srcresource;
std::ostringstream strrange;
strrange << "bytes=" << start << "-" << (start + size - 1);
meta["x-amz-copy-source-range"] = strrange.str();
s3fscurl->b_from = SAFESTRPTR(tpath);
s3fscurl->b_meta = meta;
s3fscurl->partdata.petag = petag; // [NOTE] be careful, the value is set directly
S3FS_PRN_INFO3("Copy Part [tpath=%s][start=%lld][size=%lld][part=%d]", SAFESTRPTR(tpath), static_cast<long long>(start), static_cast<long long>(size), part_num);
if(0 != (result = s3fscurl->CopyMultipartPostSetup(tpath, tpath, part_num, upload_id, meta))){
S3FS_PRN_ERR("failed uploading part setup(%d)", result);
delete s3fscurl;
return NULL;
}
}
// Call lazy function
if(!s3fscurl->fpLazySetup || !s3fscurl->fpLazySetup(s3fscurl)){
S3FS_PRN_ERR("failed lazy function setup for uploading part");
result = -EIO;
delete s3fscurl;
return NULL;
}
return s3fscurl;
}
int S3fsCurl::ParallelMultipartUploadRequest(const char* tpath, headers_t& meta, int fd)
{
int result;
std::string upload_id;
struct stat st;
etaglist_t list;
off_t remaining_bytes;
S3fsCurl s3fscurl(true);
S3FS_PRN_INFO3("[tpath=%s][fd=%d]", SAFESTRPTR(tpath), fd);
if(-1 == fstat(fd, &st)){
S3FS_PRN_ERR("Invalid file descriptor(errno=%d)", errno);
return -errno;
}
if(0 != (result = s3fscurl.PreMultipartPostRequest(tpath, meta, upload_id, false))){
return result;
}
s3fscurl.DestroyCurlHandle();
// Initialize S3fsMultiCurl
S3fsMultiCurl curlmulti(GetMaxParallelCount());
curlmulti.SetSuccessCallback(S3fsCurl::UploadMultipartPostCallback);
curlmulti.SetRetryCallback(S3fsCurl::UploadMultipartPostRetryCallback);
// cycle through open fd, pulling off 10MB chunks at a time
for(remaining_bytes = st.st_size; 0 < remaining_bytes; ){
off_t chunk = remaining_bytes > S3fsCurl::multipart_size ? S3fsCurl::multipart_size : remaining_bytes;
// s3fscurl sub object
S3fsCurl* s3fscurl_para = new S3fsCurl(true);
s3fscurl_para->partdata.fd = fd;
s3fscurl_para->partdata.startpos = st.st_size - remaining_bytes;
s3fscurl_para->partdata.size = chunk;
s3fscurl_para->b_partdata_startpos = s3fscurl_para->partdata.startpos;
s3fscurl_para->b_partdata_size = s3fscurl_para->partdata.size;
s3fscurl_para->partdata.add_etag_list(list);
// initiate upload part for parallel
if(0 != (result = s3fscurl_para->UploadMultipartPostSetup(tpath, s3fscurl_para->partdata.get_part_number(), upload_id))){
S3FS_PRN_ERR("failed uploading part setup(%d)", result);
delete s3fscurl_para;
return result;
}
// set into parallel object
if(!curlmulti.SetS3fsCurlObject(s3fscurl_para)){
S3FS_PRN_ERR("Could not make curl object into multi curl(%s).", tpath);
delete s3fscurl_para;
return -EIO;
}
remaining_bytes -= chunk;
}
// Multi request
if(0 != (result = curlmulti.Request())){
S3FS_PRN_ERR("error occurred in multi request(errno=%d).", result);
S3fsCurl s3fscurl_abort(true);
int result2 = s3fscurl_abort.AbortMultipartUpload(tpath, upload_id);
s3fscurl_abort.DestroyCurlHandle();
if(result2 != 0){
S3FS_PRN_ERR("error aborting multipart upload(errno=%d).", result2);
}
return result;
}
if(0 != (result = s3fscurl.CompleteMultipartPostRequest(tpath, upload_id, list))){
return result;
}
return 0;
}
int S3fsCurl::ParallelMixMultipartUploadRequest(const char* tpath, headers_t& meta, int fd, const fdpage_list_t& mixuppages)
{
int result;
std::string upload_id;
struct stat st;
etaglist_t list;
S3fsCurl s3fscurl(true);
S3FS_PRN_INFO3("[tpath=%s][fd=%d]", SAFESTRPTR(tpath), fd);
if(-1 == fstat(fd, &st)){
S3FS_PRN_ERR("Invalid file descriptor(errno=%d)", errno);
return -errno;
}
if(0 != (result = s3fscurl.PreMultipartPostRequest(tpath, meta, upload_id, true))){
return result;
}
s3fscurl.DestroyCurlHandle();
// for copy multipart
std::string srcresource;
std::string srcurl;
MakeUrlResource(get_realpath(tpath).c_str(), srcresource, srcurl);
meta["Content-Type"] = S3fsCurl::LookupMimeType(std::string(tpath));
meta["x-amz-copy-source"] = srcresource;
// Initialize S3fsMultiCurl
S3fsMultiCurl curlmulti(GetMaxParallelCount());
curlmulti.SetSuccessCallback(S3fsCurl::MixMultipartPostCallback);
curlmulti.SetRetryCallback(S3fsCurl::MixMultipartPostRetryCallback);
for(fdpage_list_t::const_iterator iter = mixuppages.begin(); iter != mixuppages.end(); ++iter){
if(iter->modified){
// Multipart upload
S3fsCurl* s3fscurl_para = new S3fsCurl(true);
s3fscurl_para->partdata.fd = fd;
s3fscurl_para->partdata.startpos = iter->offset;
s3fscurl_para->partdata.size = iter->bytes;
s3fscurl_para->b_partdata_startpos = s3fscurl_para->partdata.startpos;
s3fscurl_para->b_partdata_size = s3fscurl_para->partdata.size;
s3fscurl_para->partdata.add_etag_list(list);
S3FS_PRN_INFO3("Upload Part [tpath=%s][start=%lld][size=%lld][part=%d]", SAFESTRPTR(tpath), static_cast<long long>(iter->offset), static_cast<long long>(iter->bytes), s3fscurl_para->partdata.get_part_number());
// initiate upload part for parallel
if(0 != (result = s3fscurl_para->UploadMultipartPostSetup(tpath, s3fscurl_para->partdata.get_part_number(), upload_id))){
S3FS_PRN_ERR("failed uploading part setup(%d)", result);
delete s3fscurl_para;
return result;
}
// set into parallel object
if(!curlmulti.SetS3fsCurlObject(s3fscurl_para)){
S3FS_PRN_ERR("Could not make curl object into multi curl(%s).", tpath);
delete s3fscurl_para;
return -EIO;
}
}else{
// Multipart copy
for(off_t i = 0, bytes = 0; i < iter->bytes; i += bytes){
S3fsCurl* s3fscurl_para = new S3fsCurl(true);
bytes = std::min(static_cast<off_t>(GetMultipartCopySize()), iter->bytes - i);
/* every part should be larger than MIN_MULTIPART_SIZE and smaller than FIVE_GB */
off_t remain_bytes = iter->bytes - i - bytes;
if ((MIN_MULTIPART_SIZE > remain_bytes) && (0 < remain_bytes)){
if(FIVE_GB < (bytes + remain_bytes)){
bytes = (bytes + remain_bytes)/2;
} else{
bytes += remain_bytes;
}
}
std::ostringstream strrange;
strrange << "bytes=" << (iter->offset + i) << "-" << (iter->offset + i + bytes - 1);
meta["x-amz-copy-source-range"] = strrange.str();
s3fscurl_para->b_from = SAFESTRPTR(tpath);
s3fscurl_para->b_meta = meta;
s3fscurl_para->partdata.add_etag_list(list);
S3FS_PRN_INFO3("Copy Part [tpath=%s][start=%lld][size=%lld][part=%d]", SAFESTRPTR(tpath), static_cast<long long>(iter->offset + i), static_cast<long long>(bytes), s3fscurl_para->partdata.get_part_number());
// initiate upload part for parallel
if(0 != (result = s3fscurl_para->CopyMultipartPostSetup(tpath, tpath, s3fscurl_para->partdata.get_part_number(), upload_id, meta))){
S3FS_PRN_ERR("failed uploading part setup(%d)", result);
delete s3fscurl_para;
return result;
}
// set into parallel object
if(!curlmulti.SetS3fsCurlObject(s3fscurl_para)){
S3FS_PRN_ERR("Could not make curl object into multi curl(%s).", tpath);
delete s3fscurl_para;
return -EIO;
}
}
}
}
// Multi request
if(0 != (result = curlmulti.Request())){
S3FS_PRN_ERR("error occurred in multi request(errno=%d).", result);
S3fsCurl s3fscurl_abort(true);
int result2 = s3fscurl_abort.AbortMultipartUpload(tpath, upload_id);
s3fscurl_abort.DestroyCurlHandle();
if(result2 != 0){
S3FS_PRN_ERR("error aborting multipart upload(errno=%d).", result2);
}
return result;
}
if(0 != (result = s3fscurl.CompleteMultipartPostRequest(tpath, upload_id, list))){
return result;
}
return 0;
}
S3fsCurl* S3fsCurl::ParallelGetObjectRetryCallback(S3fsCurl* s3fscurl)
{
int result;
if(!s3fscurl){
return NULL;
}
if(s3fscurl->retry_count >= S3fsCurl::retries){
S3FS_PRN_ERR("Over retry count(%d) limit(%s).", s3fscurl->retry_count, s3fscurl->path.c_str());
return NULL;
}
// duplicate request(setup new curl object)
S3fsCurl* newcurl = new S3fsCurl(s3fscurl->IsUseAhbe());
if(0 != (result = newcurl->PreGetObjectRequest(s3fscurl->path.c_str(), s3fscurl->partdata.fd, s3fscurl->partdata.startpos, s3fscurl->partdata.size, s3fscurl->b_ssetype, s3fscurl->b_ssevalue))){
S3FS_PRN_ERR("failed downloading part setup(%d)", result);
delete newcurl;
return NULL;;
}
newcurl->retry_count = s3fscurl->retry_count + 1;
return newcurl;
}
int S3fsCurl::ParallelGetObjectRequest(const char* tpath, int fd, off_t start, off_t size)
{
S3FS_PRN_INFO3("[tpath=%s][fd=%d]", SAFESTRPTR(tpath), fd);
sse_type_t ssetype = sse_type_t::SSE_DISABLE;
std::string ssevalue;
if(!get_object_sse_type(tpath, ssetype, ssevalue)){
S3FS_PRN_WARN("Failed to get SSE type for file(%s).", SAFESTRPTR(tpath));
}
int result = 0;
off_t remaining_bytes;
// cycle through open fd, pulling off 10MB chunks at a time
for(remaining_bytes = size; 0 < remaining_bytes; ){
S3fsMultiCurl curlmulti(GetMaxParallelCount());
int para_cnt;
off_t chunk;
// Initialize S3fsMultiCurl
//curlmulti.SetSuccessCallback(NULL); // not need to set success callback
curlmulti.SetRetryCallback(S3fsCurl::ParallelGetObjectRetryCallback);
// Loop for setup parallel upload(multipart) request.
for(para_cnt = 0; para_cnt < S3fsCurl::max_parallel_cnt && 0 < remaining_bytes; para_cnt++, remaining_bytes -= chunk){
// chunk size
chunk = remaining_bytes > S3fsCurl::multipart_size ? S3fsCurl::multipart_size : remaining_bytes;
// s3fscurl sub object
S3fsCurl* s3fscurl_para = new S3fsCurl();
if(0 != (result = s3fscurl_para->PreGetObjectRequest(tpath, fd, (start + size - remaining_bytes), chunk, ssetype, ssevalue))){
S3FS_PRN_ERR("failed downloading part setup(%d)", result);
delete s3fscurl_para;
return result;
}
// set into parallel object
if(!curlmulti.SetS3fsCurlObject(s3fscurl_para)){
S3FS_PRN_ERR("Could not make curl object into multi curl(%s).", tpath);
delete s3fscurl_para;
return -EIO;
}
}
// Multi request
if(0 != (result = curlmulti.Request())){
S3FS_PRN_ERR("error occurred in multi request(errno=%d).", result);
break;
}
// reinit for loop.
curlmulti.Clear();
}
return result;
}
bool S3fsCurl::UploadMultipartPostSetCurlOpts(S3fsCurl* s3fscurl)
{
if(!s3fscurl){
return false;
}
if(!s3fscurl->CreateCurlHandle()){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_URL, s3fscurl->url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_UPLOAD, true)){ // HTTP PUT
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_WRITEDATA, (void*)(&s3fscurl->bodydata))){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_HEADERDATA, (void*)&(s3fscurl->responseHeaders))){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_HEADERFUNCTION, HeaderCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_INFILESIZE_LARGE, static_cast<curl_off_t>(s3fscurl->partdata.size))){ // Content-Length
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_READFUNCTION, UploadReadCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_READDATA, reinterpret_cast<void*>(s3fscurl))){
return false;
}
if(!S3fsCurl::AddUserAgent(s3fscurl->hCurl)){ // put User-Agent
return false;
}
return true;
}
bool S3fsCurl::CopyMultipartPostSetCurlOpts(S3fsCurl* s3fscurl)
{
if(!s3fscurl){
return false;
}
if(!s3fscurl->CreateCurlHandle()){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_URL, s3fscurl->url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_UPLOAD, true)){ // HTTP PUT
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_WRITEDATA, (void*)(&s3fscurl->bodydata))){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_HEADERDATA, (void*)(&s3fscurl->headdata))){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_HEADERFUNCTION, WriteMemoryCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_INFILESIZE, 0)){ // Content-Length
return false;
}
if(!S3fsCurl::AddUserAgent(s3fscurl->hCurl)){ // put User-Agent
return false;
}
return true;
}
bool S3fsCurl::PreGetObjectRequestSetCurlOpts(S3fsCurl* s3fscurl)
{
if(!s3fscurl){
return false;
}
if(!s3fscurl->CreateCurlHandle()){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_URL, s3fscurl->url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_WRITEFUNCTION, DownloadWriteCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_WRITEDATA, reinterpret_cast<void*>(s3fscurl))){
return false;
}
if(!S3fsCurl::AddUserAgent(s3fscurl->hCurl)){ // put User-Agent
return false;
}
return true;
}
bool S3fsCurl::PreHeadRequestSetCurlOpts(S3fsCurl* s3fscurl)
{
if(!s3fscurl){
return false;
}
if(!s3fscurl->CreateCurlHandle()){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_URL, s3fscurl->url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_NOBODY, true)){ // HEAD
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_FILETIME, true)){ // Last-Modified
return false;
}
// responseHeaders
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_HEADERDATA, (void*)&(s3fscurl->responseHeaders))){
return false;
}
if(CURLE_OK != curl_easy_setopt(s3fscurl->hCurl, CURLOPT_HEADERFUNCTION, HeaderCallback)){
return false;
}
if(!S3fsCurl::AddUserAgent(s3fscurl->hCurl)){ // put User-Agent
return false;
}
return true;
}
bool S3fsCurl::AddUserAgent(CURL* hCurl)
{
if(!hCurl){
return false;
}
if(S3fsCurl::IsUserAgentFlag()){
curl_easy_setopt(hCurl, CURLOPT_USERAGENT, S3fsCurl::userAgent.c_str());
}
return true;
}
int S3fsCurl::CurlDebugFunc(const CURL* hcurl, curl_infotype type, char* data, size_t size, void* userptr)
{
return S3fsCurl::RawCurlDebugFunc(hcurl, type, data, size, userptr, CURLINFO_END);
}
int S3fsCurl::CurlDebugBodyInFunc(const CURL* hcurl, curl_infotype type, char* data, size_t size, void* userptr)
{
return S3fsCurl::RawCurlDebugFunc(hcurl, type, data, size, userptr, CURLINFO_DATA_IN);
}
int S3fsCurl::CurlDebugBodyOutFunc(const CURL* hcurl, curl_infotype type, char* data, size_t size, void* userptr)
{
return S3fsCurl::RawCurlDebugFunc(hcurl, type, data, size, userptr, CURLINFO_DATA_OUT);
}
int S3fsCurl::RawCurlDebugFunc(const CURL* hcurl, curl_infotype type, char* data, size_t size, void* userptr, curl_infotype datatype)
{
if(!hcurl){
// something wrong...
return 0;
}
switch(type){
case CURLINFO_TEXT:
// Swap tab indentation with spaces so it stays pretty in syslog
int indent;
indent = 0;
while (*data == '\t' && size > 0) {
indent += 4;
size--;
data++;
}
if(foreground && 0 < size && '\n' == data[size - 1]){
size--;
}
S3FS_PRN_CURL("* %*s%.*s", indent, "", (int)size, data);
break;
case CURLINFO_DATA_IN:
case CURLINFO_DATA_OUT:
if(type != datatype || !S3fsCurl::is_dump_body){
// not put
break;
}
case CURLINFO_HEADER_IN:
case CURLINFO_HEADER_OUT:
size_t remaining;
char* p;
// Print each line individually for tidy output
remaining = size;
p = data;
do {
char* eol = reinterpret_cast<char*>(memchr(p, '\n', remaining));
int newline = 0;
if (eol == NULL) {
eol = reinterpret_cast<char*>(memchr(p, '\r', remaining));
} else {
if (eol > p && *(eol - 1) == '\r') {
newline++;
}
newline++;
eol++;
}
size_t length = eol - p;
S3FS_PRN_CURL("%s %.*s", getCurlDebugHead(type), (int)length - newline, p);
remaining -= length;
p = eol;
} while (p != NULL && remaining > 0);
break;
case CURLINFO_SSL_DATA_IN:
case CURLINFO_SSL_DATA_OUT:
// not put
break;
default:
// why
break;
}
return 0;
}
//-------------------------------------------------------------------
// Methods for S3fsCurl
//-------------------------------------------------------------------
S3fsCurl::S3fsCurl(bool ahbe) :
hCurl(NULL), type(REQTYPE_UNSET), requestHeaders(NULL),
LastResponseCode(S3FSCURL_RESPONSECODE_NOTSET), postdata(NULL), postdata_remaining(0), is_use_ahbe(ahbe),
retry_count(0), b_infile(NULL), b_postdata(NULL), b_postdata_remaining(0), b_partdata_startpos(0), b_partdata_size(0),
b_ssekey_pos(-1), b_ssetype(sse_type_t::SSE_DISABLE),
sem(NULL), completed_tids_lock(NULL), completed_tids(NULL), fpLazySetup(NULL), curlCode(CURLE_OK)
{
if(!S3fsCurl::ps3fscred){
S3FS_PRN_CRIT("The object of S3fs Credential class is not initialized.");
abort();
}
}
S3fsCurl::~S3fsCurl()
{
DestroyCurlHandle();
}
bool S3fsCurl::ResetHandle(AutoLock::Type locktype)
{
bool run_once;
{
AutoLock lock(&S3fsCurl::curl_warnings_lock);
run_once = curl_warnings_once;
curl_warnings_once = true;
}
curl_easy_reset(hCurl);
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_NOSIGNAL, 1)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_FOLLOWLOCATION, true)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_CONNECTTIMEOUT, S3fsCurl::connect_timeout)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_NOPROGRESS, 0)){
return false;
}
// [NOTE]
// CURLOPT_PROGRESSFUNCTION should be changed to CURLOPT_XFERINFOFUNCTION,
// but CnetOS7's curl version is old, so it haven't been changed yet.
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_PROGRESSFUNCTION, S3fsCurl::CurlProgress)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_PROGRESSDATA, hCurl)){
return false;
}
// curl_easy_setopt(hCurl, CURLOPT_FORBID_REUSE, 1);
if(CURLE_OK != curl_easy_setopt(hCurl, S3FS_CURLOPT_TCP_KEEPALIVE, 1) && !run_once){
S3FS_PRN_WARN("The CURLOPT_TCP_KEEPALIVE option could not be set. For maximize performance you need to enable this option and you should use libcurl 7.25.0 or later.");
}
if(CURLE_OK != curl_easy_setopt(hCurl, S3FS_CURLOPT_SSL_ENABLE_ALPN, 0) && !run_once){
S3FS_PRN_WARN("The CURLOPT_SSL_ENABLE_ALPN option could not be unset. S3 server does not support ALPN, then this option should be disabled to maximize performance. you need to use libcurl 7.36.0 or later.");
}
if(CURLE_OK != curl_easy_setopt(hCurl, S3FS_CURLOPT_KEEP_SENDING_ON_ERROR, 1) && !run_once){
S3FS_PRN_WARN("The S3FS_CURLOPT_KEEP_SENDING_ON_ERROR option could not be set. For maximize performance you need to enable this option and you should use libcurl 7.51.0 or later.");
}
if(type != REQTYPE_IAMCRED && type != REQTYPE_IAMROLE){
// REQTYPE_IAMCRED and REQTYPE_IAMROLE are always HTTP
if(0 == S3fsCurl::ssl_verify_hostname){
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_SSL_VERIFYHOST, 0)){
return false;
}
}
if(!S3fsCurl::curl_ca_bundle.empty()){
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_CAINFO, S3fsCurl::curl_ca_bundle.c_str())){
return false;
}
}
}
if((S3fsCurl::is_dns_cache || S3fsCurl::is_ssl_session_cache) && S3fsCurl::hCurlShare){
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_SHARE, S3fsCurl::hCurlShare)){
return false;
}
}
if(!S3fsCurl::is_cert_check) {
S3FS_PRN_DBG("'no_check_certificate' option in effect.");
S3FS_PRN_DBG("The server certificate won't be checked against the available certificate authorities.");
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_SSL_VERIFYPEER, false)){
return false;
}
}
if(S3fsCurl::is_verbose){
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_VERBOSE, true)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_DEBUGFUNCTION, S3fsCurl::CurlDebugFunc)){
return false;
}
}
if(!cipher_suites.empty()) {
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_SSL_CIPHER_LIST, cipher_suites.c_str())){
return false;
}
}
if(!S3fsCurl::proxy_url.empty()){
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_PROXY, S3fsCurl::proxy_url.c_str())){
return false;
}
if(S3fsCurl::proxy_http){
if(!S3fsCurl::proxy_userpwd.empty()){
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_PROXYUSERPWD, S3fsCurl::proxy_userpwd.c_str())){
return false;
}
}
}else if(!S3fsCurl::proxy_userpwd.empty()){
S3FS_PRN_DBG("Username and passphrase are specified even though proxy is not 'http' scheme, so skip to set those.");
}
}
AutoLock lock(&S3fsCurl::curl_handles_lock, locktype);
S3fsCurl::curl_times[hCurl] = time(0);
S3fsCurl::curl_progress[hCurl] = progress_t(-1, -1);
return true;
}
bool S3fsCurl::CreateCurlHandle(bool only_pool, bool remake)
{
AutoLock lock(&S3fsCurl::curl_handles_lock);
if(hCurl && remake){
if(!DestroyCurlHandle(false, true, AutoLock::ALREADY_LOCKED)){
S3FS_PRN_ERR("could not destroy handle.");
return false;
}
S3FS_PRN_INFO3("already has handle, so destroyed it or restored it to pool.");
}
if(!hCurl){
if(NULL == (hCurl = sCurlPool->GetHandler(only_pool))){
if(!only_pool){
S3FS_PRN_ERR("Failed to create handle.");
return false;
}else{
// [NOTE]
// Further initialization processing is left to lazy processing to be executed later.
// (Currently we do not use only_pool=true, but this code is remained for the future)
return true;
}
}
}
ResetHandle(AutoLock::ALREADY_LOCKED);
return true;
}
bool S3fsCurl::DestroyCurlHandle(bool restore_pool, bool clear_internal_data, AutoLock::Type locktype)
{
// [NOTE]
// If type is REQTYPE_IAMCRED or REQTYPE_IAMROLE, do not clear type.
// Because that type only uses HTTP protocol, then the special
// logic in ResetHandle function.
//
if(type != REQTYPE_IAMCRED && type != REQTYPE_IAMROLE){
type = REQTYPE_UNSET;
}
if(clear_internal_data){
ClearInternalData();
}
if(hCurl){
AutoLock lock(&S3fsCurl::curl_handles_lock, locktype);
S3fsCurl::curl_times.erase(hCurl);
S3fsCurl::curl_progress.erase(hCurl);
sCurlPool->ReturnHandler(hCurl, restore_pool);
hCurl = NULL;
}else{
return false;
}
return true;
}
bool S3fsCurl::ClearInternalData()
{
// Always clear internal data
//
type = REQTYPE_UNSET;
path = "";
base_path = "";
saved_path = "";
url = "";
op = "";
query_string= "";
if(requestHeaders){
curl_slist_free_all(requestHeaders);
requestHeaders = NULL;
}
responseHeaders.clear();
bodydata.Clear();
headdata.Clear();
LastResponseCode = S3FSCURL_RESPONSECODE_NOTSET;
postdata = NULL;
postdata_remaining = 0;
retry_count = 0;
b_infile = NULL;
b_postdata = NULL;
b_postdata_remaining = 0;
b_partdata_startpos = 0;
b_partdata_size = 0;
partdata.clear();
fpLazySetup = NULL;
S3FS_MALLOCTRIM(0);
return true;
}
bool S3fsCurl::SetUseAhbe(bool ahbe)
{
bool old = is_use_ahbe;
is_use_ahbe = ahbe;
return old;
}
bool S3fsCurl::GetResponseCode(long& responseCode, bool from_curl_handle) const
{
responseCode = -1;
if(!from_curl_handle){
responseCode = LastResponseCode;
}else{
if(!hCurl){
return false;
}
if(CURLE_OK != curl_easy_getinfo(hCurl, CURLINFO_RESPONSE_CODE, &LastResponseCode)){
return false;
}
responseCode = LastResponseCode;
}
return true;
}
//
// Reset all options for retrying
//
bool S3fsCurl::RemakeHandle()
{
S3FS_PRN_INFO3("Retry request. [type=%d][url=%s][path=%s]", type, url.c_str(), path.c_str());
if(REQTYPE_UNSET == type){
return false;
}
// rewind file
struct stat st;
if(b_infile){
rewind(b_infile);
if(-1 == fstat(fileno(b_infile), &st)){
S3FS_PRN_WARN("Could not get file stat(fd=%d)", fileno(b_infile));
return false;
}
}
// reinitialize internal data
requestHeaders = curl_slist_remove(requestHeaders, "Authorization");
responseHeaders.clear();
bodydata.Clear();
headdata.Clear();
LastResponseCode = S3FSCURL_RESPONSECODE_NOTSET;
// count up(only use for multipart)
retry_count++;
// set from backup
postdata = b_postdata;
postdata_remaining = b_postdata_remaining;
partdata.startpos = b_partdata_startpos;
partdata.size = b_partdata_size;
// reset handle
ResetHandle();
// set options
switch(type){
case REQTYPE_DELETE:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_CUSTOMREQUEST, "DELETE")){
return false;
}
break;
case REQTYPE_HEAD:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_NOBODY, true)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_FILETIME, true)){
return false;
}
// responseHeaders
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_HEADERDATA, (void*)&responseHeaders)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_HEADERFUNCTION, HeaderCallback)){
return false;
}
break;
case REQTYPE_PUTHEAD:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_UPLOAD, true)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILESIZE, 0)){
return false;
}
break;
case REQTYPE_PUT:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_UPLOAD, true)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
if(b_infile){
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILESIZE_LARGE, static_cast<curl_off_t>(st.st_size))){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILE, b_infile)){
return false;
}
}else{
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILESIZE, 0)){
return false;
}
}
break;
case REQTYPE_GET:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, S3fsCurl::DownloadWriteCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, reinterpret_cast<void*>(this))){
return false;
}
break;
case REQTYPE_CHKBUCKET:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
break;
case REQTYPE_LISTBUCKET:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
break;
case REQTYPE_PREMULTIPOST:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POST, true)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POSTFIELDSIZE, 0)){
return false;
}
break;
case REQTYPE_COMPLETEMULTIPOST:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POST, true)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POSTFIELDSIZE, static_cast<curl_off_t>(postdata_remaining))){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_READDATA, reinterpret_cast<void*>(this))){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_READFUNCTION, S3fsCurl::ReadCallback)){
return false;
}
break;
case REQTYPE_UPLOADMULTIPOST:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_UPLOAD, true)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_HEADERDATA, (void*)&responseHeaders)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_HEADERFUNCTION, HeaderCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILESIZE_LARGE, static_cast<curl_off_t>(partdata.size))){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_READFUNCTION, S3fsCurl::UploadReadCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_READDATA, reinterpret_cast<void*>(this))){
return false;
}
break;
case REQTYPE_COPYMULTIPOST:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_UPLOAD, true)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_HEADERDATA, (void*)&headdata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_HEADERFUNCTION, WriteMemoryCallback)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILESIZE, 0)){
return false;
}
break;
case REQTYPE_MULTILIST:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
break;
case REQTYPE_IAMCRED:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
if(S3fsCurl::ps3fscred->IsIBMIAMAuth()){
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POST, true)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POSTFIELDSIZE, static_cast<curl_off_t>(postdata_remaining))){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_READDATA, reinterpret_cast<void*>(this))){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_READFUNCTION, S3fsCurl::ReadCallback)){
return false;
}
}
break;
case REQTYPE_ABORTMULTIUPLOAD:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_CUSTOMREQUEST, "DELETE")){
return false;
}
break;
case REQTYPE_IAMROLE:
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
break;
default:
S3FS_PRN_ERR("request type is unknown(%d)", type);
return false;
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return false;
}
return true;
}
//
// returns curl return code
//
int S3fsCurl::RequestPerform(bool dontAddAuthHeaders /*=false*/)
{
if(S3fsLog::IsS3fsLogDbg()){
char* ptr_url = NULL;
curl_easy_getinfo(hCurl, CURLINFO_EFFECTIVE_URL , &ptr_url);
S3FS_PRN_DBG("connecting to URL %s", SAFESTRPTR(ptr_url));
}
LastResponseCode = S3FSCURL_RESPONSECODE_NOTSET;
long responseCode = S3FSCURL_RESPONSECODE_NOTSET;
int result = S3FSCURL_PERFORM_RESULT_NOTSET;
// 1 attempt + retries...
for(int retrycnt = 0; S3FSCURL_PERFORM_RESULT_NOTSET == result && retrycnt < S3fsCurl::retries; ++retrycnt){
// Reset response code
responseCode = S3FSCURL_RESPONSECODE_NOTSET;
// Insert headers
if(!dontAddAuthHeaders) {
insertAuthHeaders();
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_HTTPHEADER, requestHeaders)){
return false;
}
// Requests
curlCode = curl_easy_perform(hCurl);
// Check result
switch(curlCode){
case CURLE_OK:
// Need to look at the HTTP response code
if(0 != curl_easy_getinfo(hCurl, CURLINFO_RESPONSE_CODE, &responseCode)){
S3FS_PRN_ERR("curl_easy_getinfo failed while trying to retrieve HTTP response code");
responseCode = S3FSCURL_RESPONSECODE_FATAL_ERROR;
result = -EIO;
break;
}
if(responseCode >= 200 && responseCode < 300){
S3FS_PRN_INFO3("HTTP response code %ld", responseCode);
result = 0;
break;
}
{
// Try to parse more specific AWS error code otherwise fall back to HTTP error code.
std::string value;
if(simple_parse_xml(bodydata.str(), bodydata.size(), "Code", value)){
// TODO: other error codes
if(value == "EntityTooLarge"){
result = -EFBIG;
break;
}else if(value == "InvalidObjectState"){
result = -EREMOTE;
break;
}else if(value == "KeyTooLongError"){
result = -ENAMETOOLONG;
break;
}
}
}
// Service response codes which are >= 300 && < 500
switch(responseCode){
case 301:
case 307:
S3FS_PRN_ERR("HTTP response code 301(Moved Permanently: also happens when bucket's region is incorrect), returning EIO. Body Text: %s", bodydata.str());
S3FS_PRN_ERR("The options of url and endpoint may be useful for solving, please try to use both options.");
result = -EIO;
break;
case 400:
if(op == "HEAD"){
if(path.size() > 1024){
S3FS_PRN_ERR("HEAD HTTP response code %ld with path longer than 1024, returning ENAMETOOLONG.", responseCode);
return -ENAMETOOLONG;
}
S3FS_PRN_ERR("HEAD HTTP response code %ld, returning EPERM.", responseCode);
result = -EPERM;
}else{
S3FS_PRN_ERR("HTTP response code %ld, returning EIO. Body Text: %s", responseCode, bodydata.str());
result = -EIO;
}
break;
case 403:
S3FS_PRN_ERR("HTTP response code %ld, returning EPERM. Body Text: %s", responseCode, bodydata.str());
result = -EPERM;
break;
case 404:
S3FS_PRN_INFO3("HTTP response code 404 was returned, returning ENOENT");
S3FS_PRN_DBG("Body Text: %s", bodydata.str());
result = -ENOENT;
break;
case 416:
S3FS_PRN_INFO3("HTTP response code 416 was returned, returning EIO");
result = -EIO;
break;
case 501:
S3FS_PRN_INFO3("HTTP response code 501 was returned, returning ENOTSUP");
S3FS_PRN_DBG("Body Text: %s", bodydata.str());
result = -ENOTSUP;
break;
case 500:
case 503: {
S3FS_PRN_INFO3("HTTP response code %ld was returned, slowing down", responseCode);
S3FS_PRN_DBG("Body Text: %s", bodydata.str());
// Add jitter to avoid thundering herd.
unsigned int sleep_time = 2 << retry_count;
sleep(sleep_time + static_cast<unsigned int>(random()) % sleep_time);
break;
}
default:
S3FS_PRN_ERR("HTTP response code %ld, returning EIO. Body Text: %s", responseCode, bodydata.str());
result = -EIO;
break;
}
break;
case CURLE_WRITE_ERROR:
S3FS_PRN_ERR("### CURLE_WRITE_ERROR");
sleep(2);
break;
case CURLE_OPERATION_TIMEDOUT:
S3FS_PRN_ERR("### CURLE_OPERATION_TIMEDOUT");
sleep(2);
break;
case CURLE_COULDNT_RESOLVE_HOST:
S3FS_PRN_ERR("### CURLE_COULDNT_RESOLVE_HOST");
sleep(2);
break;
case CURLE_COULDNT_CONNECT:
S3FS_PRN_ERR("### CURLE_COULDNT_CONNECT");
sleep(4);
break;
case CURLE_GOT_NOTHING:
S3FS_PRN_ERR("### CURLE_GOT_NOTHING");
sleep(4);
break;
case CURLE_ABORTED_BY_CALLBACK:
S3FS_PRN_ERR("### CURLE_ABORTED_BY_CALLBACK");
sleep(4);
{
AutoLock lock(&S3fsCurl::curl_handles_lock);
S3fsCurl::curl_times[hCurl] = time(0);
}
break;
case CURLE_PARTIAL_FILE:
S3FS_PRN_ERR("### CURLE_PARTIAL_FILE");
sleep(4);
break;
case CURLE_SEND_ERROR:
S3FS_PRN_ERR("### CURLE_SEND_ERROR");
sleep(2);
break;
case CURLE_RECV_ERROR:
S3FS_PRN_ERR("### CURLE_RECV_ERROR");
sleep(2);
break;
case CURLE_SSL_CONNECT_ERROR:
S3FS_PRN_ERR("### CURLE_SSL_CONNECT_ERROR");
sleep(2);
break;
case CURLE_SSL_CACERT:
S3FS_PRN_ERR("### CURLE_SSL_CACERT");
// try to locate cert, if successful, then set the
// option and continue
if(S3fsCurl::curl_ca_bundle.empty()){
if(!S3fsCurl::LocateBundle()){
S3FS_PRN_ERR("could not get CURL_CA_BUNDLE.");
result = -EIO;
}
// retry with CAINFO
}else{
S3FS_PRN_ERR("curlCode: %d msg: %s", curlCode, curl_easy_strerror(curlCode));
result = -EIO;
}
break;
#ifdef CURLE_PEER_FAILED_VERIFICATION
case CURLE_PEER_FAILED_VERIFICATION:
S3FS_PRN_ERR("### CURLE_PEER_FAILED_VERIFICATION");
first_pos = S3fsCred::GetBucket().find_first_of('.');
if(first_pos != std::string::npos){
S3FS_PRN_INFO("curl returned a CURL_PEER_FAILED_VERIFICATION error");
S3FS_PRN_INFO("security issue found: buckets with periods in their name are incompatible with http");
S3FS_PRN_INFO("This check can be over-ridden by using the -o ssl_verify_hostname=0");
S3FS_PRN_INFO("The certificate will still be checked but the hostname will not be verified.");
S3FS_PRN_INFO("A more secure method would be to use a bucket name without periods.");
}else{
S3FS_PRN_INFO("my_curl_easy_perform: curlCode: %d -- %s", curlCode, curl_easy_strerror(curlCode));
}
result = -EIO;
break;
#endif
// This should be invalid since curl option HTTP FAILONERROR is now off
case CURLE_HTTP_RETURNED_ERROR:
S3FS_PRN_ERR("### CURLE_HTTP_RETURNED_ERROR");
if(0 != curl_easy_getinfo(hCurl, CURLINFO_RESPONSE_CODE, &responseCode)){
result = -EIO;
}else{
S3FS_PRN_INFO3("HTTP response code =%ld", responseCode);
// Let's try to retrieve the
if(404 == responseCode){
result = -ENOENT;
}else if(500 > responseCode){
result = -EIO;
}
}
break;
// Unknown CURL return code
default:
S3FS_PRN_ERR("###curlCode: %d msg: %s", curlCode, curl_easy_strerror(curlCode));
result = -EIO;
break;
} // switch
if(S3FSCURL_PERFORM_RESULT_NOTSET == result){
S3FS_PRN_INFO("### retrying...");
if(!RemakeHandle()){
S3FS_PRN_INFO("Failed to reset handle and internal data for retrying.");
result = -EIO;
break;
}
}
} // for
// set last response code
if(S3FSCURL_RESPONSECODE_NOTSET == responseCode){
LastResponseCode = S3FSCURL_RESPONSECODE_FATAL_ERROR;
}else{
LastResponseCode = responseCode;
}
if(S3FSCURL_PERFORM_RESULT_NOTSET == result){
S3FS_PRN_ERR("### giving up");
result = -EIO;
}
return result;
}
//
// Returns the Amazon AWS signature for the given parameters.
//
// @param method e.g., "GET"
// @param content_type e.g., "application/x-directory"
// @param date e.g., get_date_rfc850()
// @param resource e.g., "/pub"
//
std::string S3fsCurl::CalcSignatureV2(const std::string& method, const std::string& strMD5, const std::string& content_type, const std::string& date, const std::string& resource, const std::string& secret_access_key, const std::string& access_token)
{
std::string Signature;
std::string StringToSign;
if(!access_token.empty()){
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-security-token", access_token.c_str());
}
StringToSign += method + "\n";
StringToSign += strMD5 + "\n"; // md5
StringToSign += content_type + "\n";
StringToSign += date + "\n";
StringToSign += get_canonical_headers(requestHeaders, true);
StringToSign += resource;
const void* key = secret_access_key.data();
size_t key_len = secret_access_key.size();
const unsigned char* sdata = reinterpret_cast<const unsigned char*>(StringToSign.data());
size_t sdata_len = StringToSign.size();
unsigned char* md = NULL;
unsigned int md_len = 0;;
s3fs_HMAC(key, key_len, sdata, sdata_len, &md, &md_len);
char* base64;
if(NULL == (base64 = s3fs_base64(md, md_len))){
delete[] md;
return std::string(""); // ENOMEM
}
delete[] md;
Signature = base64;
delete[] base64;
return Signature;
}
std::string S3fsCurl::CalcSignature(const std::string& method, const std::string& canonical_uri, const std::string& query_string, const std::string& strdate, const std::string& payload_hash, const std::string& date8601, const std::string& secret_access_key, const std::string& access_token)
{
std::string Signature, StringCQ, StringToSign;
std::string uriencode;
if(!access_token.empty()){
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-security-token", access_token.c_str());
}
uriencode = urlEncodePath(canonical_uri);
StringCQ = method + "\n";
if(method == "HEAD" || method == "PUT" || method == "DELETE"){
StringCQ += uriencode + "\n";
}else if(method == "GET" && uriencode.empty()){
StringCQ +="/\n";
}else if(method == "GET" && is_prefix(uriencode.c_str(), "/")){
StringCQ += uriencode +"\n";
}else if(method == "GET" && !is_prefix(uriencode.c_str(), "/")){
StringCQ += "/\n" + urlEncodeQuery(canonical_uri) +"\n";
}else if(method == "POST"){
StringCQ += uriencode + "\n";
}
StringCQ += urlEncodeQuery(query_string) + "\n";
StringCQ += get_canonical_headers(requestHeaders) + "\n";
StringCQ += get_sorted_header_keys(requestHeaders) + "\n";
StringCQ += payload_hash;
std::string kSecret = "AWS4" + secret_access_key;
unsigned char *kDate, *kRegion, *kService, *kSigning, *sRequest = NULL;
unsigned int kDate_len,kRegion_len, kService_len, kSigning_len, sRequest_len = 0;
s3fs_HMAC256(kSecret.c_str(), kSecret.size(), reinterpret_cast<const unsigned char*>(strdate.data()), strdate.size(), &kDate, &kDate_len);
s3fs_HMAC256(kDate, kDate_len, reinterpret_cast<const unsigned char*>(endpoint.c_str()), endpoint.size(), &kRegion, &kRegion_len);
s3fs_HMAC256(kRegion, kRegion_len, reinterpret_cast<const unsigned char*>("s3"), sizeof("s3") - 1, &kService, &kService_len);
s3fs_HMAC256(kService, kService_len, reinterpret_cast<const unsigned char*>("aws4_request"), sizeof("aws4_request") - 1, &kSigning, &kSigning_len);
delete[] kDate;
delete[] kRegion;
delete[] kService;
const unsigned char* cRequest = reinterpret_cast<const unsigned char*>(StringCQ.c_str());
size_t cRequest_len = StringCQ.size();
s3fs_sha256(cRequest, cRequest_len, &sRequest, &sRequest_len);
StringToSign = "AWS4-HMAC-SHA256\n";
StringToSign += date8601 + "\n";
StringToSign += strdate + "/" + endpoint + "/s3/aws4_request\n";
StringToSign += s3fs_hex_lower(sRequest, sRequest_len);
delete[] sRequest;
const unsigned char* cscope = reinterpret_cast<const unsigned char*>(StringToSign.c_str());
size_t cscope_len = StringToSign.size();
unsigned char* md = NULL;
unsigned int md_len = 0;
s3fs_HMAC256(kSigning, kSigning_len, cscope, cscope_len, &md, &md_len);
delete[] kSigning;
Signature = s3fs_hex_lower(md, md_len);
delete[] md;
return Signature;
}
void S3fsCurl::insertV4Headers(const std::string& access_key_id, const std::string& secret_access_key, const std::string& access_token)
{
std::string server_path = type == REQTYPE_LISTBUCKET ? "/" : path;
std::string payload_hash;
switch (type) {
case REQTYPE_PUT:
if(GetUnsignedPayload()){
payload_hash = "UNSIGNED-PAYLOAD";
}else{
payload_hash = s3fs_sha256_hex_fd(b_infile == NULL ? -1 : fileno(b_infile), 0, -1);
}
break;
case REQTYPE_COMPLETEMULTIPOST:
{
size_t cRequest_len = strlen(reinterpret_cast<const char *>(b_postdata));
unsigned char* sRequest = NULL;
unsigned int sRequest_len = 0;
s3fs_sha256(b_postdata, cRequest_len, &sRequest, &sRequest_len);
payload_hash = s3fs_hex_lower(sRequest, sRequest_len);
delete[] sRequest;
break;
}
case REQTYPE_UPLOADMULTIPOST:
if(GetUnsignedPayload()){
payload_hash = "UNSIGNED-PAYLOAD";
}else{
payload_hash = s3fs_sha256_hex_fd(partdata.fd, partdata.startpos, partdata.size);
}
break;
default:
break;
}
if(b_infile != NULL && payload_hash.empty()){
S3FS_PRN_ERR("Failed to make SHA256.");
// TODO: propagate error
}
S3FS_PRN_INFO3("computing signature [%s] [%s] [%s] [%s]", op.c_str(), server_path.c_str(), query_string.c_str(), payload_hash.c_str());
std::string strdate;
std::string date8601;
get_date_sigv3(strdate, date8601);
std::string contentSHA256 = payload_hash.empty() ? EMPTY_PAYLOAD_HASH : payload_hash;
const std::string realpath = pathrequeststyle ? "/" + S3fsCred::GetBucket() + server_path : server_path;
//string canonical_headers, signed_headers;
requestHeaders = curl_slist_sort_insert(requestHeaders, "host", get_bucket_host().c_str());
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-content-sha256", contentSHA256.c_str());
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-date", date8601.c_str());
if (S3fsCurl::IsRequesterPays()) {
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-request-payer", "requester");
}
if(!S3fsCurl::IsPublicBucket()){
std::string Signature = CalcSignature(op, realpath, query_string + (type == REQTYPE_PREMULTIPOST || type == REQTYPE_MULTILIST ? "=" : ""), strdate, contentSHA256, date8601, secret_access_key, access_token);
std::string auth = "AWS4-HMAC-SHA256 Credential=" + access_key_id + "/" + strdate + "/" + endpoint + "/s3/aws4_request, SignedHeaders=" + get_sorted_header_keys(requestHeaders) + ", Signature=" + Signature;
requestHeaders = curl_slist_sort_insert(requestHeaders, "Authorization", auth.c_str());
}
}
void S3fsCurl::insertV2Headers(const std::string& access_key_id, const std::string& secret_access_key, const std::string& access_token)
{
std::string resource;
std::string turl;
std::string server_path = type == REQTYPE_LISTBUCKET ? "/" : path;
MakeUrlResource(server_path.c_str(), resource, turl);
if(!query_string.empty() && type != REQTYPE_CHKBUCKET && type != REQTYPE_LISTBUCKET){
resource += "?" + query_string;
}
std::string date = get_date_rfc850();
requestHeaders = curl_slist_sort_insert(requestHeaders, "Date", date.c_str());
if(op != "PUT" && op != "POST"){
requestHeaders = curl_slist_sort_insert(requestHeaders, "Content-Type", NULL);
}
if(!S3fsCurl::IsPublicBucket()){
std::string Signature = CalcSignatureV2(op, get_header_value(requestHeaders, "Content-MD5"), get_header_value(requestHeaders, "Content-Type"), date, resource, secret_access_key, access_token);
requestHeaders = curl_slist_sort_insert(requestHeaders, "Authorization", std::string("AWS " + access_key_id + ":" + Signature).c_str());
}
}
void S3fsCurl::insertIBMIAMHeaders(const std::string& access_key_id, const std::string& access_token)
{
requestHeaders = curl_slist_sort_insert(requestHeaders, "Authorization", ("Bearer " + access_token).c_str());
if(op == "PUT" && path == mount_prefix + "/"){
// ibm-service-instance-id header is required for bucket creation requests
requestHeaders = curl_slist_sort_insert(requestHeaders, "ibm-service-instance-id", access_key_id.c_str());
}
}
void S3fsCurl::insertAuthHeaders()
{
std::string access_key_id;
std::string secret_access_key;
std::string access_token;
// check and get credential variables
if(!S3fsCurl::ps3fscred->CheckIAMCredentialUpdate(&access_key_id, &secret_access_key, &access_token)){
S3FS_PRN_ERR("An error occurred in checking IAM credential.");
return; // do not insert auth headers on error
}
if(S3fsCurl::ps3fscred->IsIBMIAMAuth()){
insertIBMIAMHeaders(access_key_id, access_token);
}else if(S3fsCurl::signature_type == V2_ONLY){
insertV2Headers(access_key_id, secret_access_key, access_token);
}else{
insertV4Headers(access_key_id, secret_access_key, access_token);
}
}
int S3fsCurl::DeleteRequest(const char* tpath)
{
S3FS_PRN_INFO3("[tpath=%s]", SAFESTRPTR(tpath));
if(!tpath){
return -EINVAL;
}
if(!CreateCurlHandle()){
return -EIO;
}
std::string resource;
std::string turl;
MakeUrlResource(get_realpath(tpath).c_str(), resource, turl);
url = prepare_url(turl.c_str());
path = get_realpath(tpath);
requestHeaders = NULL;
responseHeaders.clear();
op = "DELETE";
type = REQTYPE_DELETE;
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_CUSTOMREQUEST, "DELETE")){
return -EIO;
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return -EIO;
}
return RequestPerform();
}
int S3fsCurl::GetIAMv2ApiToken(const char* token_url, int token_ttl, const char* token_ttl_hdr, std::string& response)
{
if(!token_url || !token_ttl_hdr){
S3FS_PRN_ERR("IAMv2 token url(%s) or ttl_hdr(%s) parameter are wrong.", token_url ? token_url : "null", token_ttl_hdr ? token_ttl_hdr : "null");
return -EIO;
}
response.erase();
url = std::string(token_url);
if(!CreateCurlHandle()){
return -EIO;
}
requestHeaders = NULL;
responseHeaders.clear();
bodydata.Clear();
std::string ttlstr = str(token_ttl);
requestHeaders = curl_slist_sort_insert(requestHeaders, token_ttl_hdr, ttlstr.c_str());
// Curl appends an "Expect: 100-continue" header to the token request,
// and aws responds with a 417 Expectation Failed. This ensures the
// Expect header is empty before the request is sent.
requestHeaders = curl_slist_sort_insert(requestHeaders, "Expect", "");
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_UPLOAD, true)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILESIZE, 0)){
return false;
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return -EIO;
}
// [NOTE]
// Be sure to give "dontAddAuthHeaders=true".
// If set to false(default), it will deadlock in S3fsCred.
//
int result = RequestPerform(true);
if(0 == result){
response = bodydata.str();
}else{
S3FS_PRN_ERR("Error(%d) occurred, could not get IAMv2 api token.", result);
}
bodydata.Clear();
return result;
}
//
// Get AccessKeyId/SecretAccessKey/AccessToken/Expiration by IAM role,
// and Set these value to class variable.
//
bool S3fsCurl::GetIAMCredentials(const char* cred_url, const char* iam_v2_token, const char* ibm_secret_access_key, std::string& response)
{
if(!cred_url){
S3FS_PRN_ERR("url is null.");
return false;
}
url = cred_url;
response.erase();
// at first set type for handle
type = REQTYPE_IAMCRED;
if(!CreateCurlHandle()){
return false;
}
requestHeaders = NULL;
responseHeaders.clear();
bodydata.Clear();
std::string postContent;
if(ibm_secret_access_key){
// make contents
postContent += "grant_type=urn:ibm:params:oauth:grant-type:apikey";
postContent += "&response_type=cloud_iam";
postContent += "&apikey=" + std::string(ibm_secret_access_key);
// set postdata
postdata = reinterpret_cast<const unsigned char*>(postContent.c_str());
b_postdata = postdata;
postdata_remaining = postContent.size(); // without null
b_postdata_remaining = postdata_remaining;
requestHeaders = curl_slist_sort_insert(requestHeaders, "Authorization", "Basic Yng6Yng=");
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POST, true)){ // POST
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POSTFIELDSIZE, static_cast<curl_off_t>(postdata_remaining))){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_READDATA, reinterpret_cast<void*>(this))){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_READFUNCTION, S3fsCurl::ReadCallback)){
return false;
}
}
if(iam_v2_token){
requestHeaders = curl_slist_sort_insert(requestHeaders, S3fsCred::IAMv2_token_hdr, iam_v2_token);
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return false;
}
// [NOTE]
// Be sure to give "dontAddAuthHeaders=true".
// If set to false(default), it will deadlock in S3fsCred.
//
int result = RequestPerform(true);
// analyzing response
if(0 == result){
response = bodydata.str();
}else{
S3FS_PRN_ERR("Error(%d) occurred, could not get IAM role name.", result);
}
bodydata.Clear();
return (0 == result);
}
//
// Get IAM role name automatically.
//
bool S3fsCurl::GetIAMRoleFromMetaData(const char* cred_url, const char* iam_v2_token, std::string& token)
{
if(!cred_url){
S3FS_PRN_ERR("url is null.");
return false;
}
url = cred_url;
token.erase();
S3FS_PRN_INFO3("Get IAM Role name");
// at first set type for handle
type = REQTYPE_IAMROLE;
if(!CreateCurlHandle()){
return false;
}
requestHeaders = NULL;
responseHeaders.clear();
bodydata.Clear();
if(iam_v2_token){
requestHeaders = curl_slist_sort_insert(requestHeaders, S3fsCred::IAMv2_token_hdr, iam_v2_token);
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return false;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return false;
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return false;
}
// [NOTE]
// Be sure to give "dontAddAuthHeaders=true".
// If set to false(default), it will deadlock in S3fsCred.
//
int result = RequestPerform(true);
// analyzing response
if(0 == result){
token = bodydata.str();
}else{
S3FS_PRN_ERR("Error(%d) occurred, could not get IAM role name from meta data.", result);
}
bodydata.Clear();
return (0 == result);
}
bool S3fsCurl::AddSseRequestHead(sse_type_t ssetype, const std::string& input, bool is_copy)
{
std::string ssevalue = input;
switch(ssetype){
case sse_type_t::SSE_DISABLE:
return true;
case sse_type_t::SSE_S3:
if(!is_copy){
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-server-side-encryption", "AES256");
}
return true;
case sse_type_t::SSE_C:
{
std::string sseckey;
if(S3fsCurl::GetSseKey(ssevalue, sseckey)){
if(is_copy){
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-copy-source-server-side-encryption-customer-algorithm", "AES256");
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-copy-source-server-side-encryption-customer-key", sseckey.c_str());
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-copy-source-server-side-encryption-customer-key-md5", ssevalue.c_str());
}else{
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-server-side-encryption-customer-algorithm", "AES256");
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-server-side-encryption-customer-key", sseckey.c_str());
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-server-side-encryption-customer-key-md5", ssevalue.c_str());
}
}else{
S3FS_PRN_WARN("Failed to insert SSE-C header.");
}
return true;
}
case sse_type_t::SSE_KMS:
if(!is_copy){
if(ssevalue.empty()){
ssevalue = S3fsCurl::GetSseKmsId();
}
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-server-side-encryption", "aws:kms");
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-server-side-encryption-aws-kms-key-id", ssevalue.c_str());
}
return true;
}
S3FS_PRN_ERR("sse type is unknown(%d).", static_cast<int>(S3fsCurl::ssetype));
return false;
}
//
// tpath : target path for head request
// bpath : saved into base_path
// savedpath : saved into saved_path
// ssekey_pos : -1 means "not" SSE-C type
// 0 - X means SSE-C type and position for SSE-C key(0 is latest key)
//
bool S3fsCurl::PreHeadRequest(const char* tpath, const char* bpath, const char* savedpath, size_t ssekey_pos)
{
S3FS_PRN_INFO3("[tpath=%s][bpath=%s][save=%s][sseckeypos=%zu]", SAFESTRPTR(tpath), SAFESTRPTR(bpath), SAFESTRPTR(savedpath), ssekey_pos);
if(!tpath){
return false;
}
std::string resource;
std::string turl;
MakeUrlResource(get_realpath(tpath).c_str(), resource, turl);
// libcurl 7.17 does deep copy of url, deep copy "stable" url
url = prepare_url(turl.c_str());
path = get_realpath(tpath);
base_path = SAFESTRPTR(bpath);
saved_path = SAFESTRPTR(savedpath);
requestHeaders = NULL;
responseHeaders.clear();
// requestHeaders(SSE-C)
if(0 <= static_cast<ssize_t>(ssekey_pos) && ssekey_pos < S3fsCurl::sseckeys.size()){
std::string md5;
if(!S3fsCurl::GetSseKeyMd5(ssekey_pos, md5) || !AddSseRequestHead(sse_type_t::SSE_C, md5, false)){
S3FS_PRN_ERR("Failed to set SSE-C headers for sse-c key pos(%zu)(=md5(%s)).", ssekey_pos, md5.c_str());
return false;
}
}
b_ssekey_pos = ssekey_pos;
op = "HEAD";
type = REQTYPE_HEAD;
// set lazy function
fpLazySetup = PreHeadRequestSetCurlOpts;
return true;
}
int S3fsCurl::HeadRequest(const char* tpath, headers_t& meta)
{
int result = -1;
S3FS_PRN_INFO3("[tpath=%s]", SAFESTRPTR(tpath));
// At first, try to get without SSE-C headers
if(!PreHeadRequest(tpath) || !fpLazySetup || !fpLazySetup(this) || 0 != (result = RequestPerform())){
// If has SSE-C keys, try to get with all SSE-C keys.
for(size_t pos = 0; pos < S3fsCurl::sseckeys.size(); pos++){
if(!DestroyCurlHandle()){
break;
}
if(!PreHeadRequest(tpath, NULL, NULL, pos)){
break;
}
if(!fpLazySetup || !fpLazySetup(this)){
S3FS_PRN_ERR("Failed to lazy setup in single head request.");
break;
}
if(0 == (result = RequestPerform())){
break;
}
}
if(0 != result){
DestroyCurlHandle(); // not check result.
return result;
}
}
// file exists in s3
// fixme: clean this up.
meta.clear();
for(headers_t::iterator iter = responseHeaders.begin(); iter != responseHeaders.end(); ++iter){
std::string key = lower(iter->first);
std::string value = iter->second;
if(key == "content-type"){
meta[iter->first] = value;
}else if(key == "content-length"){
meta[iter->first] = value;
}else if(key == "etag"){
meta[iter->first] = value;
}else if(key == "last-modified"){
meta[iter->first] = value;
}else if(is_prefix(key.c_str(), "x-amz")){
meta[key] = value; // key is lower case for "x-amz"
}
}
return 0;
}
int S3fsCurl::PutHeadRequest(const char* tpath, headers_t& meta, bool is_copy)
{
S3FS_PRN_INFO3("[tpath=%s]", SAFESTRPTR(tpath));
if(!tpath){
return -EINVAL;
}
if(!CreateCurlHandle()){
return -EIO;
}
std::string resource;
std::string turl;
MakeUrlResource(get_realpath(tpath).c_str(), resource, turl);
url = prepare_url(turl.c_str());
path = get_realpath(tpath);
requestHeaders = NULL;
responseHeaders.clear();
bodydata.Clear();
std::string contype = S3fsCurl::LookupMimeType(std::string(tpath));
requestHeaders = curl_slist_sort_insert(requestHeaders, "Content-Type", contype.c_str());
// Make request headers
for(headers_t::iterator iter = meta.begin(); iter != meta.end(); ++iter){
std::string key = lower(iter->first);
std::string value = iter->second;
if(is_prefix(key.c_str(), "x-amz-acl")){
// not set value, but after set it.
}else if(is_prefix(key.c_str(), "x-amz-meta")){
requestHeaders = curl_slist_sort_insert(requestHeaders, iter->first.c_str(), value.c_str());
}else if(key == "x-amz-copy-source"){
requestHeaders = curl_slist_sort_insert(requestHeaders, iter->first.c_str(), value.c_str());
}else if(key == "x-amz-server-side-encryption" && value != "aws:kms"){
// skip this header, because this header is specified after logic.
}else if(key == "x-amz-server-side-encryption-aws-kms-key-id"){
// skip this header, because this header is specified after logic.
}else if(key == "x-amz-server-side-encryption-customer-key-md5"){
// Only copy mode.
if(is_copy){
if(!AddSseRequestHead(sse_type_t::SSE_C, value, true)){
S3FS_PRN_WARN("Failed to insert SSE-C header.");
}
}
}
}
// "x-amz-acl", storage class, sse
if(S3fsCurl::default_acl != acl_t::PRIVATE){
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-acl", S3fsCurl::default_acl.str());
}
if(strcasecmp(GetStorageClass().c_str(), "STANDARD") != 0){
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", GetStorageClass().c_str());
}
// SSE
if(S3fsCurl::GetSseType() != sse_type_t::SSE_DISABLE){
std::string ssevalue;
if(!AddSseRequestHead(S3fsCurl::GetSseType(), ssevalue, false)){
S3FS_PRN_WARN("Failed to set SSE header, but continue...");
}
}
if(is_use_ahbe){
// set additional header by ahbe conf
requestHeaders = AdditionalHeader::get()->AddHeader(requestHeaders, tpath);
}
op = "PUT";
type = REQTYPE_PUTHEAD;
// setopt
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_UPLOAD, true)){ // HTTP PUT
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILESIZE, 0)){ // Content-Length
return -EIO;
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return -EIO;
}
S3FS_PRN_INFO3("copying... [path=%s]", tpath);
int result = RequestPerform();
result = MapPutErrorResponse(result);
bodydata.Clear();
return result;
}
int S3fsCurl::PutRequest(const char* tpath, headers_t& meta, int fd)
{
struct stat st;
FILE* file = NULL;
S3FS_PRN_INFO3("[tpath=%s]", SAFESTRPTR(tpath));
if(!tpath){
return -EINVAL;
}
if(-1 != fd){
// duplicate fd
//
// [NOTE]
// This process requires FILE*, then it is linked to fd with fdopen.
// After processing, the FILE* is closed with fclose, and fd is closed together.
// The fd should not be closed here, so call dup here to duplicate it.
//
int fd2;
if(-1 == (fd2 = dup(fd)) || -1 == fstat(fd2, &st) || 0 != lseek(fd2, 0, SEEK_SET) || NULL == (file = fdopen(fd2, "rb"))){
S3FS_PRN_ERR("Could not duplicate file descriptor(errno=%d)", errno);
if(-1 != fd2){
close(fd2);
}
return -errno;
}
b_infile = file;
}else{
// This case is creating zero byte object.(calling by create_file_object())
S3FS_PRN_INFO3("create zero byte file object.");
}
if(!CreateCurlHandle()){
if(file){
fclose(file);
}
return -EIO;
}
std::string resource;
std::string turl;
MakeUrlResource(get_realpath(tpath).c_str(), resource, turl);
url = prepare_url(turl.c_str());
path = get_realpath(tpath);
requestHeaders = NULL;
responseHeaders.clear();
bodydata.Clear();
// Make request headers
if(S3fsCurl::is_content_md5){
std::string strMD5;
if(-1 != fd){
strMD5 = s3fs_get_content_md5(fd);
if(0 == strMD5.length()){
S3FS_PRN_ERR("Failed to make MD5.");
return -EIO;
}
}else{
strMD5 = EMPTY_MD5_BASE64_HASH;
}
requestHeaders = curl_slist_sort_insert(requestHeaders, "Content-MD5", strMD5.c_str());
}
std::string contype = S3fsCurl::LookupMimeType(std::string(tpath));
requestHeaders = curl_slist_sort_insert(requestHeaders, "Content-Type", contype.c_str());
for(headers_t::iterator iter = meta.begin(); iter != meta.end(); ++iter){
std::string key = lower(iter->first);
std::string value = iter->second;
if(is_prefix(key.c_str(), "x-amz-acl")){
// not set value, but after set it.
}else if(is_prefix(key.c_str(), "x-amz-meta")){
requestHeaders = curl_slist_sort_insert(requestHeaders, iter->first.c_str(), value.c_str());
}else if(key == "x-amz-server-side-encryption" && value != "aws:kms"){
// skip this header, because this header is specified after logic.
}else if(key == "x-amz-server-side-encryption-aws-kms-key-id"){
// skip this header, because this header is specified after logic.
}else if(key == "x-amz-server-side-encryption-customer-key-md5"){
// skip this header, because this header is specified after logic.
}
}
// "x-amz-acl", storage class, sse
if(S3fsCurl::default_acl != acl_t::PRIVATE){
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-acl", S3fsCurl::default_acl.str());
}
if(strcasecmp(GetStorageClass().c_str(), "STANDARD") != 0){
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", GetStorageClass().c_str());
}
// SSE
// do not add SSE for create bucket
if(0 != strcmp(tpath, "/")){
std::string ssevalue;
if(!AddSseRequestHead(S3fsCurl::GetSseType(), ssevalue, false)){
S3FS_PRN_WARN("Failed to set SSE header, but continue...");
}
}
if(is_use_ahbe){
// set additional header by ahbe conf
requestHeaders = AdditionalHeader::get()->AddHeader(requestHeaders, tpath);
}
op = "PUT";
type = REQTYPE_PUT;
// setopt
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_UPLOAD, true)){ // HTTP PUT
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return -EIO;
}
if(file){
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILESIZE_LARGE, static_cast<curl_off_t>(st.st_size))){ // Content-Length
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILE, file)){
return -EIO;
}
}else{
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILESIZE, 0)){ // Content-Length: 0
return -EIO;
}
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return -EIO;
}
S3FS_PRN_INFO3("uploading... [path=%s][fd=%d][size=%lld]", tpath, fd, static_cast<long long int>(-1 != fd ? st.st_size : 0));
int result = RequestPerform();
result = MapPutErrorResponse(result);
bodydata.Clear();
if(file){
fclose(file);
}
return result;
}
int S3fsCurl::PreGetObjectRequest(const char* tpath, int fd, off_t start, off_t size, sse_type_t ssetype, const std::string& ssevalue)
{
S3FS_PRN_INFO3("[tpath=%s][start=%lld][size=%lld]", SAFESTRPTR(tpath), static_cast<long long>(start), static_cast<long long>(size));
if(!tpath || -1 == fd || 0 > start || 0 > size){
return -EINVAL;
}
std::string resource;
std::string turl;
MakeUrlResource(get_realpath(tpath).c_str(), resource, turl);
url = prepare_url(turl.c_str());
path = get_realpath(tpath);
requestHeaders = NULL;
responseHeaders.clear();
if(0 < size){
std::string range = "bytes=";
range += str(start);
range += "-";
range += str(start + size - 1);
requestHeaders = curl_slist_sort_insert(requestHeaders, "Range", range.c_str());
}
// SSE-C
if(sse_type_t::SSE_C == ssetype){
if(!AddSseRequestHead(ssetype, ssevalue, false)){
S3FS_PRN_WARN("Failed to set SSE header, but continue...");
}
}
op = "GET";
type = REQTYPE_GET;
// set lazy function
fpLazySetup = PreGetObjectRequestSetCurlOpts;
// set info for callback func.
// (use only fd, startpos and size, other member is not used.)
partdata.clear();
partdata.fd = fd;
partdata.startpos = start;
partdata.size = size;
b_partdata_startpos = start;
b_partdata_size = size;
b_ssetype = ssetype;
b_ssevalue = ssevalue;
b_ssekey_pos = -1; // not use this value for get object.
return 0;
}
int S3fsCurl::GetObjectRequest(const char* tpath, int fd, off_t start, off_t size)
{
int result;
S3FS_PRN_INFO3("[tpath=%s][start=%lld][size=%lld]", SAFESTRPTR(tpath), static_cast<long long>(start), static_cast<long long>(size));
if(!tpath){
return -EINVAL;
}
sse_type_t local_ssetype = sse_type_t::SSE_DISABLE;
std::string ssevalue;
if(!get_object_sse_type(tpath, local_ssetype, ssevalue)){
S3FS_PRN_WARN("Failed to get SSE type for file(%s).", SAFESTRPTR(tpath));
}
if(0 != (result = PreGetObjectRequest(tpath, fd, start, size, local_ssetype, ssevalue))){
return result;
}
if(!fpLazySetup || !fpLazySetup(this)){
S3FS_PRN_ERR("Failed to lazy setup in single get object request.");
return -EIO;
}
S3FS_PRN_INFO3("downloading... [path=%s][fd=%d]", tpath, fd);
result = RequestPerform();
partdata.clear();
return result;
}
int S3fsCurl::CheckBucket(const char* check_path)
{
S3FS_PRN_INFO3("check a bucket.");
if(!check_path || 0 == strlen(check_path)){
return -EIO;
}
if(!CreateCurlHandle()){
return -EIO;
}
std::string urlargs;
if(S3fsCurl::IsListObjectsV2()){
query_string = "list-type=2";
urlargs = "?" + query_string;
}
std::string resource;
std::string turl;
MakeUrlResource(check_path, resource, turl);
turl += urlargs;
url = prepare_url(turl.c_str());
path = check_path;
requestHeaders = NULL;
responseHeaders.clear();
bodydata.Clear();
op = "GET";
type = REQTYPE_CHKBUCKET;
// setopt
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_UNRESTRICTED_AUTH, 1L)){
return -EIO;
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return -EIO;
}
int result = RequestPerform();
if (result != 0) {
S3FS_PRN_ERR("Check bucket failed, S3 response: %s", bodydata.str());
}
return result;
}
int S3fsCurl::ListBucketRequest(const char* tpath, const char* query)
{
S3FS_PRN_INFO3("[tpath=%s]", SAFESTRPTR(tpath));
if(!tpath){
return -EINVAL;
}
if(!CreateCurlHandle()){
return -EIO;
}
std::string resource;
std::string turl;
MakeUrlResource("", resource, turl); // NOTICE: path is "".
if(query){
turl += "?";
turl += query;
query_string = query;
}
url = prepare_url(turl.c_str());
path = get_realpath(tpath);
requestHeaders = NULL;
responseHeaders.clear();
bodydata.Clear();
op = "GET";
type = REQTYPE_LISTBUCKET;
// setopt
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return -EIO;
}
if(S3fsCurl::is_verbose){
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_DEBUGFUNCTION, S3fsCurl::CurlDebugBodyInFunc)){ // replace debug function
return -EIO;
}
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return -EIO;
}
return RequestPerform();
}
//
// Initialize multipart upload
//
// Example :
// POST /example-object?uploads HTTP/1.1
// Host: example-bucket.s3.amazonaws.com
// Date: Mon, 1 Nov 2010 20:34:56 GMT
// Authorization: AWS VGhpcyBtZXNzYWdlIHNpZ25lZCBieSBlbHZpbmc=
//
int S3fsCurl::PreMultipartPostRequest(const char* tpath, headers_t& meta, std::string& upload_id, bool is_copy)
{
S3FS_PRN_INFO3("[tpath=%s]", SAFESTRPTR(tpath));
if(!tpath){
return -EINVAL;
}
if(!CreateCurlHandle()){
return -EIO;
}
std::string resource;
std::string turl;
MakeUrlResource(get_realpath(tpath).c_str(), resource, turl);
query_string = "uploads";
turl += "?" + query_string;
url = prepare_url(turl.c_str());
path = get_realpath(tpath);
requestHeaders = NULL;
bodydata.Clear();
responseHeaders.clear();
std::string contype = S3fsCurl::LookupMimeType(std::string(tpath));
for(headers_t::iterator iter = meta.begin(); iter != meta.end(); ++iter){
std::string key = lower(iter->first);
std::string value = iter->second;
if(is_prefix(key.c_str(), "x-amz-acl")){
// not set value, but after set it.
}else if(is_prefix(key.c_str(), "x-amz-meta")){
requestHeaders = curl_slist_sort_insert(requestHeaders, iter->first.c_str(), value.c_str());
}else if(key == "x-amz-server-side-encryption" && value != "aws:kms"){
// skip this header, because this header is specified after logic.
}else if(key == "x-amz-server-side-encryption-aws-kms-key-id"){
// skip this header, because this header is specified after logic.
}else if(key == "x-amz-server-side-encryption-customer-key-md5"){
// Only copy mode.
if(is_copy){
if(!AddSseRequestHead(sse_type_t::SSE_C, value, true)){
S3FS_PRN_WARN("Failed to insert SSE-C header.");
}
}
}
}
// "x-amz-acl", storage class, sse
if(S3fsCurl::default_acl != acl_t::PRIVATE){
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-acl", S3fsCurl::default_acl.str());
}
if(strcasecmp(GetStorageClass().c_str(), "STANDARD") != 0){
requestHeaders = curl_slist_sort_insert(requestHeaders, "x-amz-storage-class", GetStorageClass().c_str());
}
// SSE
if(S3fsCurl::GetSseType() != sse_type_t::SSE_DISABLE){
std::string ssevalue;
if(!AddSseRequestHead(S3fsCurl::GetSseType(), ssevalue, false)){
S3FS_PRN_WARN("Failed to set SSE header, but continue...");
}
}
if(is_use_ahbe){
// set additional header by ahbe conf
requestHeaders = AdditionalHeader::get()->AddHeader(requestHeaders, tpath);
}
requestHeaders = curl_slist_sort_insert(requestHeaders, "Accept", NULL);
requestHeaders = curl_slist_sort_insert(requestHeaders, "Content-Type", contype.c_str());
op = "POST";
type = REQTYPE_PREMULTIPOST;
// setopt
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POST, true)){ // POST
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POSTFIELDSIZE, 0)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_INFILESIZE, 0)){ // Content-Length
return -EIO;
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return -EIO;
}
// request
int result;
if(0 != (result = RequestPerform())){
bodydata.Clear();
return result;
}
if(!simple_parse_xml(bodydata.str(), bodydata.size(), "UploadId", upload_id)){
bodydata.Clear();
return -EIO;
}
bodydata.Clear();
return 0;
}
int S3fsCurl::CompleteMultipartPostRequest(const char* tpath, const std::string& upload_id, etaglist_t& parts)
{
S3FS_PRN_INFO3("[tpath=%s][parts=%zu]", SAFESTRPTR(tpath), parts.size());
if(!tpath){
return -EINVAL;
}
// make contents
std::string postContent;
postContent += "<CompleteMultipartUpload>\n";
for(etaglist_t::iterator it = parts.begin(); it != parts.end(); ++it){
if(it->etag.empty()){
S3FS_PRN_ERR("%d file part is not finished uploading.", it->part_num);
return -EIO;
}
postContent += "<Part>\n";
postContent += " <PartNumber>" + str(it->part_num) + "</PartNumber>\n";
postContent += " <ETag>" + it->etag + "</ETag>\n";
postContent += "</Part>\n";
}
postContent += "</CompleteMultipartUpload>\n";
// set postdata
postdata = reinterpret_cast<const unsigned char*>(postContent.c_str());
b_postdata = postdata;
postdata_remaining = postContent.size(); // without null
b_postdata_remaining = postdata_remaining;
if(!CreateCurlHandle()){
postdata = NULL;
b_postdata = NULL;
return -EIO;
}
std::string resource;
std::string turl;
MakeUrlResource(get_realpath(tpath).c_str(), resource, turl);
// [NOTE]
// Encode the upload_id here.
// In compatible S3 servers(Cloudflare, etc), there are cases where characters that require URL encoding are included.
//
query_string = "uploadId=" + urlEncodeGeneral(upload_id);
turl += "?" + query_string;
url = prepare_url(turl.c_str());
path = get_realpath(tpath);
requestHeaders = NULL;
bodydata.Clear();
responseHeaders.clear();
std::string contype = "application/xml";
requestHeaders = curl_slist_sort_insert(requestHeaders, "Accept", NULL);
requestHeaders = curl_slist_sort_insert(requestHeaders, "Content-Type", contype.c_str());
op = "POST";
type = REQTYPE_COMPLETEMULTIPOST;
// setopt
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POST, true)){ // POST
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_POSTFIELDSIZE, static_cast<curl_off_t>(postdata_remaining))){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_READDATA, reinterpret_cast<void*>(this))){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_READFUNCTION, S3fsCurl::ReadCallback)){
return -EIO;
}
if(S3fsCurl::is_verbose){
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_DEBUGFUNCTION, S3fsCurl::CurlDebugBodyOutFunc)){ // replace debug function
return -EIO;
}
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return -EIO;
}
// request
int result = RequestPerform();
bodydata.Clear();
postdata = NULL;
b_postdata = NULL;
return result;
}
int S3fsCurl::MultipartListRequest(std::string& body)
{
S3FS_PRN_INFO3("list request(multipart)");
if(!CreateCurlHandle()){
return -EIO;
}
std::string resource;
std::string turl;
path = get_realpath("/");
MakeUrlResource(path.c_str(), resource, turl);
query_string = "uploads";
turl += "?" + query_string;
url = prepare_url(turl.c_str());
requestHeaders = NULL;
responseHeaders.clear();
bodydata.Clear();
requestHeaders = curl_slist_sort_insert(requestHeaders, "Accept", NULL);
op = "GET";
type = REQTYPE_MULTILIST;
// setopt
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEDATA, (void*)&bodydata)){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback)){
return -EIO;
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return -EIO;
}
int result;
if(0 == (result = RequestPerform()) && 0 < bodydata.size()){
body = bodydata.str();
}else{
body = "";
}
bodydata.Clear();
return result;
}
int S3fsCurl::AbortMultipartUpload(const char* tpath, const std::string& upload_id)
{
S3FS_PRN_INFO3("[tpath=%s]", SAFESTRPTR(tpath));
if(!tpath){
return -EINVAL;
}
if(!CreateCurlHandle()){
return -EIO;
}
std::string resource;
std::string turl;
MakeUrlResource(get_realpath(tpath).c_str(), resource, turl);
// [NOTE]
// Encode the upload_id here.
// In compatible S3 servers(Cloudflare, etc), there are cases where characters that require URL encoding are included.
//
query_string = "uploadId=" + urlEncodeGeneral(upload_id);
turl += "?" + query_string;
url = prepare_url(turl.c_str());
path = get_realpath(tpath);
requestHeaders = NULL;
responseHeaders.clear();
op = "DELETE";
type = REQTYPE_ABORTMULTIUPLOAD;
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_URL, url.c_str())){
return -EIO;
}
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_CUSTOMREQUEST, "DELETE")){
return -EIO;
}
if(!S3fsCurl::AddUserAgent(hCurl)){ // put User-Agent
return -EIO;
}
return RequestPerform();
}
//
// PUT /ObjectName?partNumber=PartNumber&uploadId=UploadId HTTP/1.1
// Host: BucketName.s3.amazonaws.com
// Date: date
// Content-Length: Size
// Authorization: Signature
//
// PUT /my-movie.m2ts?partNumber=1&uploadId=VCVsb2FkIElEIGZvciBlbZZpbmcncyBteS1tb3ZpZS5tMnRzIHVwbG9hZR HTTP/1.1
// Host: example-bucket.s3.amazonaws.com
// Date: Mon, 1 Nov 2010 20:34:56 GMT
// Content-Length: 10485760
// Content-MD5: pUNXr/BjKK5G2UKvaRRrOA==
// Authorization: AWS VGhpcyBtZXNzYWdlIHNpZ25lZGGieSRlbHZpbmc=
//
int S3fsCurl::UploadMultipartPostSetup(const char* tpath, int part_num, const std::string& upload_id)
{
S3FS_PRN_INFO3("[tpath=%s][start=%lld][size=%lld][part=%d]", SAFESTRPTR(tpath), static_cast<long long int>(partdata.startpos), static_cast<long long int>(partdata.size), part_num);
if(-1 == partdata.fd || -1 == partdata.startpos || -1 == partdata.size){
return -EINVAL;
}
requestHeaders = NULL;
// make md5 and file pointer
if(S3fsCurl::is_content_md5){
unsigned char *md5raw = s3fs_md5_fd(partdata.fd, partdata.startpos, partdata.size);
if(md5raw == NULL){
S3FS_PRN_ERR("Could not make md5 for file(part %d)", part_num);
return -EIO;
}
partdata.etag = s3fs_hex_lower(md5raw, get_md5_digest_length());
char* md5base64p = s3fs_base64(md5raw, get_md5_digest_length());
requestHeaders = curl_slist_sort_insert(requestHeaders, "Content-MD5", md5base64p);
delete[] md5base64p;
delete[] md5raw;
}
// make request
//
// [NOTE]
// Encode the upload_id here.
// In compatible S3 servers(Cloudflare, etc), there are cases where characters that require URL encoding are included.
//
query_string = "partNumber=" + str(part_num) + "&uploadId=" + urlEncodeGeneral(upload_id);
std::string urlargs = "?" + query_string;
std::string resource;
std::string turl;
MakeUrlResource(get_realpath(tpath).c_str(), resource, turl);
turl += urlargs;
url = prepare_url(turl.c_str());
path = get_realpath(tpath);
bodydata.Clear();
headdata.Clear();
responseHeaders.clear();
// SSE-C
if(sse_type_t::SSE_C == S3fsCurl::GetSseType()){
std::string ssevalue;
if(!AddSseRequestHead(S3fsCurl::GetSseType(), ssevalue, false)){
S3FS_PRN_WARN("Failed to set SSE header, but continue...");
}
}
requestHeaders = curl_slist_sort_insert(requestHeaders, "Accept", NULL);
op = "PUT";
type = REQTYPE_UPLOADMULTIPOST;
// set lazy function
fpLazySetup = UploadMultipartPostSetCurlOpts;
return 0;
}
int S3fsCurl::UploadMultipartPostRequest(const char* tpath, int part_num, const std::string& upload_id)
{
int result;
S3FS_PRN_INFO3("[tpath=%s][start=%lld][size=%lld][part=%d]", SAFESTRPTR(tpath), static_cast<long long int>(partdata.startpos), static_cast<long long int>(partdata.size), part_num);
// setup
if(0 != (result = S3fsCurl::UploadMultipartPostSetup(tpath, part_num, upload_id))){
return result;
}
if(!fpLazySetup || !fpLazySetup(this)){
S3FS_PRN_ERR("Failed to lazy setup in multipart upload post request.");
return -EIO;
}
// request
if(0 == (result = RequestPerform())){
// UploadMultipartPostComplete returns true on success -> convert to 0
result = !UploadMultipartPostComplete();
}
// closing
bodydata.Clear();
headdata.Clear();
return result;
}
int S3fsCurl::CopyMultipartPostSetup(const char* from, const char* to, int part_num, const std::string& upload_id, headers_t& meta)
{
S3FS_PRN_INFO3("[from=%s][to=%s][part=%d]", SAFESTRPTR(from), SAFESTRPTR(to), part_num);
if(!from || !to){
return -EINVAL;
}
// [NOTE]
// Encode the upload_id here.
// In compatible S3 servers(Cloudflare, etc), there are cases where characters that require URL encoding are included.
//
query_string = "partNumber=" + str(part_num) + "&uploadId=" + urlEncodeGeneral(upload_id);
std::string urlargs = "?" + query_string;
std::string resource;
std::string turl;
MakeUrlResource(get_realpath(to).c_str(), resource, turl);
turl += urlargs;
url = prepare_url(turl.c_str());
path = get_realpath(to);
requestHeaders = NULL;
responseHeaders.clear();
bodydata.Clear();
headdata.Clear();
std::string contype = S3fsCurl::LookupMimeType(std::string(to));
requestHeaders = curl_slist_sort_insert(requestHeaders, "Content-Type", contype.c_str());
// Make request headers
for(headers_t::iterator iter = meta.begin(); iter != meta.end(); ++iter){
std::string key = lower(iter->first);
std::string value = iter->second;
if(key == "x-amz-copy-source"){
requestHeaders = curl_slist_sort_insert(requestHeaders, iter->first.c_str(), value.c_str());
}else if(key == "x-amz-copy-source-range"){
requestHeaders = curl_slist_sort_insert(requestHeaders, iter->first.c_str(), value.c_str());
}else if(key == "x-amz-server-side-encryption" && value != "aws:kms"){
// skip this header
}else if(key == "x-amz-server-side-encryption-aws-kms-key-id"){
// skip this header
}else if(key == "x-amz-server-side-encryption-customer-key-md5"){
if(!AddSseRequestHead(sse_type_t::SSE_C, value, true)){
S3FS_PRN_WARN("Failed to insert SSE-C header.");
}
}
}
// SSE-C
if(sse_type_t::SSE_C == S3fsCurl::GetSseType()){
std::string ssevalue;
if(!AddSseRequestHead(S3fsCurl::GetSseType(), ssevalue, false)){
S3FS_PRN_WARN("Failed to set SSE header, but continue...");
}
}
op = "PUT";
type = REQTYPE_COPYMULTIPOST;
// set lazy function
fpLazySetup = CopyMultipartPostSetCurlOpts;
// request
S3FS_PRN_INFO3("copying... [from=%s][to=%s][part=%d]", from, to, part_num);
return 0;
}
bool S3fsCurl::UploadMultipartPostComplete()
{
headers_t::iterator it = responseHeaders.find("ETag");
if (it == responseHeaders.end()) {
return false;
}
// check etag(md5);
//
// The ETAG when using SSE_C and SSE_KMS does not reflect the MD5 we sent
// SSE_C: https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectPUT.html
// SSE_KMS is ignored in the above, but in the following it states the same in the highlights:
// https://docs.aws.amazon.com/AmazonS3/latest/dev/UsingKMSEncryption.html
//
if(S3fsCurl::is_content_md5 && sse_type_t::SSE_C != S3fsCurl::GetSseType() && sse_type_t::SSE_KMS != S3fsCurl::GetSseType()){
if(!etag_equals(it->second, partdata.etag)){
return false;
}
}
partdata.petag->etag = it->second;
partdata.uploaded = true;
return true;
}
// cppcheck-suppress unmatchedSuppression
// cppcheck-suppress constParameter
bool S3fsCurl::CopyMultipartPostCallback(S3fsCurl* s3fscurl, void* param)
{
if(!s3fscurl || param){ // this callback does not need a parameter
return false;
}
return s3fscurl->CopyMultipartPostComplete();
}
bool S3fsCurl::CopyMultipartPostComplete()
{
std::string etag;
partdata.uploaded = simple_parse_xml(bodydata.str(), bodydata.size(), "ETag", etag);
if(etag.size() >= 2 && *etag.begin() == '"' && *etag.rbegin() == '"'){
etag.erase(etag.size() - 1);
etag.erase(0, 1);
}
partdata.petag->etag = etag;
bodydata.Clear();
headdata.Clear();
return true;
}
bool S3fsCurl::MixMultipartPostComplete()
{
bool result;
if(-1 == partdata.fd){
result = CopyMultipartPostComplete();
}else{
result = UploadMultipartPostComplete();
}
return result;
}
int S3fsCurl::MultipartHeadRequest(const char* tpath, off_t size, headers_t& meta, bool is_copy)
{
int result;
std::string upload_id;
off_t chunk;
off_t bytes_remaining;
etaglist_t list;
S3FS_PRN_INFO3("[tpath=%s]", SAFESTRPTR(tpath));
if(0 != (result = PreMultipartPostRequest(tpath, meta, upload_id, is_copy))){
return result;
}
DestroyCurlHandle();
// Initialize S3fsMultiCurl
S3fsMultiCurl curlmulti(GetMaxParallelCount());
curlmulti.SetSuccessCallback(S3fsCurl::CopyMultipartPostCallback);
curlmulti.SetRetryCallback(S3fsCurl::CopyMultipartPostRetryCallback);
for(bytes_remaining = size, chunk = 0; 0 < bytes_remaining; bytes_remaining -= chunk){
chunk = bytes_remaining > GetMultipartCopySize() ? GetMultipartCopySize() : bytes_remaining;
std::ostringstream strrange;
strrange << "bytes=" << (size - bytes_remaining) << "-" << (size - bytes_remaining + chunk - 1);
meta["x-amz-copy-source-range"] = strrange.str();
// s3fscurl sub object
S3fsCurl* s3fscurl_para = new S3fsCurl(true);
s3fscurl_para->b_from = SAFESTRPTR(tpath);
s3fscurl_para->b_meta = meta;
s3fscurl_para->partdata.add_etag_list(list);
// initiate upload part for parallel
if(0 != (result = s3fscurl_para->CopyMultipartPostSetup(tpath, tpath, s3fscurl_para->partdata.get_part_number(), upload_id, meta))){
S3FS_PRN_ERR("failed uploading part setup(%d)", result);
delete s3fscurl_para;
return result;
}
// set into parallel object
if(!curlmulti.SetS3fsCurlObject(s3fscurl_para)){
S3FS_PRN_ERR("Could not make curl object into multi curl(%s).", tpath);
delete s3fscurl_para;
return -EIO;
}
}
// Multi request
if(0 != (result = curlmulti.Request())){
S3FS_PRN_ERR("error occurred in multi request(errno=%d).", result);
S3fsCurl s3fscurl_abort(true);
int result2 = s3fscurl_abort.AbortMultipartUpload(tpath, upload_id);
s3fscurl_abort.DestroyCurlHandle();
if(result2 != 0){
S3FS_PRN_ERR("error aborting multipart upload(errno=%d).", result2);
}
return result;
}
if(0 != (result = CompleteMultipartPostRequest(tpath, upload_id, list))){
return result;
}
return 0;
}
int S3fsCurl::MultipartUploadRequest(const std::string& upload_id, const char* tpath, int fd, off_t offset, off_t size, etagpair* petagpair)
{
S3FS_PRN_INFO3("[upload_id=%s][tpath=%s][fd=%d][offset=%lld][size=%lld]", upload_id.c_str(), SAFESTRPTR(tpath), fd, static_cast<long long int>(offset), static_cast<long long int>(size));
// set
partdata.fd = fd;
partdata.startpos = offset;
partdata.size = size;
b_partdata_startpos = partdata.startpos;
b_partdata_size = partdata.size;
partdata.set_etag(petagpair);
// upload part
int result;
if(0 != (result = UploadMultipartPostRequest(tpath, petagpair->part_num, upload_id))){
S3FS_PRN_ERR("failed uploading %d part by error(%d)", petagpair->part_num, result);
return result;
}
DestroyCurlHandle();
return 0;
}
int S3fsCurl::MultipartRenameRequest(const char* from, const char* to, headers_t& meta, off_t size)
{
int result;
std::string upload_id;
off_t chunk;
off_t bytes_remaining;
etaglist_t list;
S3FS_PRN_INFO3("[from=%s][to=%s]", SAFESTRPTR(from), SAFESTRPTR(to));
std::string srcresource;
std::string srcurl;
MakeUrlResource(get_realpath(from).c_str(), srcresource, srcurl);
meta["Content-Type"] = S3fsCurl::LookupMimeType(std::string(to));
meta["x-amz-copy-source"] = srcresource;
if(0 != (result = PreMultipartPostRequest(to, meta, upload_id, true))){
return result;
}
DestroyCurlHandle();
// Initialize S3fsMultiCurl
S3fsMultiCurl curlmulti(GetMaxParallelCount());
curlmulti.SetSuccessCallback(S3fsCurl::CopyMultipartPostCallback);
curlmulti.SetRetryCallback(S3fsCurl::CopyMultipartPostRetryCallback);
for(bytes_remaining = size, chunk = 0; 0 < bytes_remaining; bytes_remaining -= chunk){
chunk = bytes_remaining > GetMultipartCopySize() ? GetMultipartCopySize() : bytes_remaining;
std::ostringstream strrange;
strrange << "bytes=" << (size - bytes_remaining) << "-" << (size - bytes_remaining + chunk - 1);
meta["x-amz-copy-source-range"] = strrange.str();
// s3fscurl sub object
S3fsCurl* s3fscurl_para = new S3fsCurl(true);
s3fscurl_para->b_from = SAFESTRPTR(from);
s3fscurl_para->b_meta = meta;
s3fscurl_para->partdata.add_etag_list(list);
// initiate upload part for parallel
if(0 != (result = s3fscurl_para->CopyMultipartPostSetup(from, to, s3fscurl_para->partdata.get_part_number(), upload_id, meta))){
S3FS_PRN_ERR("failed uploading part setup(%d)", result);
delete s3fscurl_para;
return result;
}
// set into parallel object
if(!curlmulti.SetS3fsCurlObject(s3fscurl_para)){
S3FS_PRN_ERR("Could not make curl object into multi curl(%s).", to);
delete s3fscurl_para;
return -EIO;
}
}
// Multi request
if(0 != (result = curlmulti.Request())){
S3FS_PRN_ERR("error occurred in multi request(errno=%d).", result);
S3fsCurl s3fscurl_abort(true);
int result2 = s3fscurl_abort.AbortMultipartUpload(to, upload_id);
s3fscurl_abort.DestroyCurlHandle();
if(result2 != 0){
S3FS_PRN_ERR("error aborting multipart upload(errno=%d).", result2);
}
return result;
}
if(0 != (result = CompleteMultipartPostRequest(to, upload_id, list))){
return result;
}
return 0;
}
/*
* 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
*/
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