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git-svn-id: http://s3fs.googlecode.com/svn/trunk@2 df820570-a93a-0410-bd06-b72b767a4274
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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all:
g++ -Wall $(shell pkg-config fuse --cflags --libs) -lcurl $(shell xml2-config --cflags --libs) -ggdb s3fs.cpp -o s3fs
@echo ok!
clean:
rm -f s3fs s3fs.o

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/*
* s3fs - FUSE filesystem backed by Amazon S3
*
* Copyright 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.
*/
#define FUSE_USE_VERSION 26
#include <fuse.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <dirent.h>
#include <errno.h>
#include <sys/time.h>
#include <libgen.h>
#include <pthread.h>
#include <curl/curl.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <fstream>
#include <iostream>
#include <map>
#include <sstream>
#include <stack>
#include <string>
#include <vector>
using namespace std;
class auto_lock {
pthread_mutex_t& lock;
public:
auto_lock(pthread_mutex_t& lock): lock(lock) {
pthread_mutex_lock(&lock);
}
~auto_lock() {
pthread_mutex_unlock(&lock);
}
};
stack<CURL*> curl_handles;
static pthread_mutex_t curl_handles_lock;
class auto_curl {
CURL* curl;
public:
auto_curl() {
auto_lock lock(curl_handles_lock);
if (curl_handles.size() == 0)
curl = curl_easy_init();
else {
curl = curl_handles.top();
curl_handles.pop();
}
curl_easy_reset(curl);
long seconds = 10;
curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, seconds);
}
~auto_curl() {
auto_lock lock(curl_handles_lock);
curl_handles.push(curl);
}
CURL* get() const {
return curl;
}
operator CURL*() const {
return curl;
}
};
class auto_curl_slist {
struct curl_slist* slist;
public:
auto_curl_slist(): slist(0) {
}
~auto_curl_slist() {
curl_slist_free_all(slist);
}
struct curl_slist* get() const {
return slist;
}
void append(const string& s) {
slist = curl_slist_append(slist, s.c_str());
}
};
static string bucket;
static string AWSAccessKeyId;
static string AWSSecretAccessKey;
static const string host = "http://s3.amazonaws.com";
// key=path
typedef map<string, struct stat> stat_cache_t;
static stat_cache_t stat_cache;
static pthread_mutex_t stat_cache_lock;
static const char hexAlphabet[] = "0123456789ABCDEF";
/**
* urlEncode a fuse path,
* taking into special consideration "/",
* otherwise regular urlEncode.
*/
string
urlEncode(const string &s) {
string result;
for (unsigned i = 0; i < s.length(); ++i) {
if (s[i] == '/') // Note- special case for fuse paths...
result += s[i];
else if (isalnum(s[i]))
result += s[i];
else if (s[i] == '.' || s[i] == '-' || s[i] == '*' || s[i] == '_')
result += s[i];
else if (s[i] == ' ')
result += '+';
else {
result += "%";
result += hexAlphabet[static_cast<unsigned char>(s[i]) / 16];
result += hexAlphabet[static_cast<unsigned char>(s[i]) % 16];
}
}
return result;
}
#include <openssl/bio.h>
#include <openssl/buffer.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
static const EVP_MD* evp_md = EVP_sha1();
/**
* Returns the current date
* in a format suitable for a HTTP request header.
*/
string
get_date() {
char buf[100];
time_t t = time(NULL);
strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S +0000", gmtime(&t));
return buf;
}
/**
* 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()
* @param resource e.g., "/pub"
*/
string
calc_signature(string method, string content_type, string date, string resource) {
string Signature;
string StringToSign;
StringToSign += method + "\n";
StringToSign += "\n";
StringToSign += content_type + "\n";
StringToSign += date + "\n";
StringToSign += resource;
const void* key = AWSSecretAccessKey.data();
int key_len = AWSSecretAccessKey.size();
const unsigned char* d = reinterpret_cast<const unsigned char*>(StringToSign.data());
int n = StringToSign.size();
unsigned int md_len;
unsigned char md[EVP_MAX_MD_SIZE];
HMAC(evp_md, key, key_len, d, n, md, &md_len);
BIO* b64 = BIO_new(BIO_f_base64());
BIO* bmem = BIO_new(BIO_s_mem());
b64 = BIO_push(b64, bmem);
BIO_write(b64, md, md_len);
BIO_flush(b64);
BUF_MEM *bptr;
BIO_get_mem_ptr(b64, &bptr);
Signature.resize(bptr->length - 1);
memcpy(&Signature[0], bptr->data, bptr->length-1);
BIO_free_all(b64);
return Signature;
}
// libcurl callback
static size_t
readCallback(void *data, size_t blockSize, size_t numBlocks, void *userPtr) {
string *userString = static_cast<string *>(userPtr);
size_t count = min((*userString).size(), blockSize*numBlocks);
memcpy(data, (*userString).data(), count);
(*userString).erase(0, count);
return count;
}
// libcurl callback
static size_t
writeCallback(void* data, size_t blockSize, size_t numBlocks, void* userPtr) {
string* userString = static_cast<string*>(userPtr);
(*userString).append(reinterpret_cast<const char*>(data), blockSize*numBlocks);
return blockSize*numBlocks;
}
static int
s3fs_getattr(const char *path, struct stat *stbuf) {
memset(stbuf, 0, sizeof(struct stat));
if (strcmp(path, "/") == 0) {
stbuf->st_nlink = 1; // see fuse faq
stbuf->st_mode = S_IFDIR | 0755;
return 0;
}
{
auto_lock lock(stat_cache_lock);
stat_cache_t::iterator iter = stat_cache.find(path);
if (iter != stat_cache.end()) {
*stbuf = (*iter).second;
stat_cache.erase(path);
return 0;
}
}
string host = "http://s3.amazonaws.com";
string resource = urlEncode("/"+bucket + path);
string url = host + resource;
auto_curl curl;
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl, CURLOPT_NOBODY, true); // HEAD
curl_easy_setopt(curl, CURLOPT_FILETIME, true); // Last-Modified
auto_curl_slist headers;
string date = get_date();
headers.append("Date: "+date);
headers.append("Authorization: AWS "+AWSAccessKeyId+":"+calc_signature("HEAD", "", date, resource));
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers.get());
if (curl_easy_perform(curl) != 0) {
long responseCode;
if (curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &responseCode) != 0)
return -EIO;
if (responseCode == 404)
return -ENOENT;
return -EIO;
}
stbuf->st_nlink = 1; // see fuse faq
long LastModified;
if (curl_easy_getinfo(curl, CURLINFO_FILETIME, &LastModified) == 0)
stbuf->st_mtime = LastModified;
char* ContentType;
if (curl_easy_getinfo(curl, CURLINFO_CONTENT_TYPE, &ContentType) == 0)
stbuf->st_mode = strcmp(ContentType, "application/x-directory")== 0 ? S_IFDIR | 0755 : S_IFREG | 0755;
double ContentLength;
if (curl_easy_getinfo(curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &ContentLength) == 0)
stbuf->st_size = static_cast<__off_t>(ContentLength);
if (strcmp(ContentType, "application/x-directory") != 0)
stbuf->st_blocks = stbuf->st_size / 512 + 1;
return 0;
}
static int
s3fs_readlink(const char *path, char *buf, size_t size) {
cout << "###readlink: path=" << path << endl;
return -ENOENT;
}
static int
s3fs_mknod(const char *path, mode_t mode, dev_t rdev) {
cout << "mknod: path="<< path << endl;
string host = "http://s3.amazonaws.com";
string resource = urlEncode("/"+bucket + path);
string url = host + resource;
auto_curl curl;
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl, CURLOPT_UPLOAD, true); // HTTP PUT
curl_easy_setopt(curl, CURLOPT_INFILESIZE, 0); // Content-Length: 0
auto_curl_slist headers;
string date = get_date();
headers.append("Date: "+date);
headers.append("Authorization: AWS "+AWSAccessKeyId+":"+calc_signature("PUT", "application/octet-stream", date, resource));
headers.append("Content-Type: application/octet-stream");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers.get());
if (curl_easy_perform(curl) != 0)
return -EIO;
return 0;
}
static int
s3fs_mkdir(const char *path, mode_t mode) {
cout << "mkdir: path=" << path << endl;
string host = "http://s3.amazonaws.com";
string resource = urlEncode("/"+bucket + path);
string url = host + resource;
auto_curl curl;
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl, CURLOPT_UPLOAD, true); // HTTP PUT
curl_easy_setopt(curl, CURLOPT_INFILESIZE, 0); // Content-Length: 0
auto_curl_slist headers;
string date = get_date();
headers.append("Date: "+date);
headers.append("Authorization: AWS "+AWSAccessKeyId+":"+calc_signature("PUT", "application/x-directory", date, resource));
headers.append("Content-Type: application/x-directory");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers.get());
if (curl_easy_perform(curl) != 0)
return -EIO;
return 0;
}
// aka rm
static int
s3fs_unlink(const char *path) {
cout << "unlink: path=" << path << endl;
string host = "http://s3.amazonaws.com";
string resource = urlEncode("/"+bucket + path);
string url = host + resource;
auto_curl curl;
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
auto_curl_slist headers;
string date = get_date();
headers.append("Date: "+date);
headers.append("Authorization: AWS "+AWSAccessKeyId+":"+calc_signature("DELETE", "", date, resource));
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers.get());
if (curl_easy_perform(curl) != 0)
return -EIO;
return 0;
}
static int
s3fs_rmdir(const char *path) {
cout << "unlink: path=" << path << endl;
string host = "http://s3.amazonaws.com";
string resource = urlEncode("/"+bucket + path);
string url = host + resource;
auto_curl curl;
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
auto_curl_slist headers;
string date = get_date();
headers.append("Date: "+date);
headers.append("Authorization: AWS "+AWSAccessKeyId+":"+calc_signature("DELETE", "", date, resource));
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers.get());
if (curl_easy_perform(curl) != 0)
return -EIO;
return 0;
}
static int
s3fs_symlink(const char *from, const char *to) {
cout << "symlink:" << " from=" << from << " to=" << to << endl;
return -EPERM;
}
static int
s3fs_rename(const char *from, const char *to) {
cout << "rename:" << " from=" << from << " to=" << to << endl;
return -EXDEV;
}
static int
s3fs_link(const char *from, const char *to) {
cout << "link:" << " from=" << from << " to=" << to << endl;
return -EPERM;
}
static int
s3fs_chmod(const char *path, mode_t mode) {
cout << "###chmod: path=" << path << endl;
return 0;
}
static int
s3fs_chown(const char *path, uid_t uid, gid_t gid) {
cout << "###chown: path=" << path << endl;
return 0;
}
static int
s3fs_truncate(const char *path, off_t size) {
//###TODO honor size?!?
cout << "truncate:" << " path=" << path << " size=" << size << endl;
string host = "http://s3.amazonaws.com";
string resource = urlEncode("/"+bucket + path);
string url = host + resource;
auto_curl curl;
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl, CURLOPT_UPLOAD, true); // HTTP PUT
curl_easy_setopt(curl, CURLOPT_INFILESIZE, 0); // Content-Length: 0
auto_curl_slist headers;
string date = get_date();
headers.append("Date: "+date);
headers.append("Authorization: AWS "+AWSAccessKeyId+":"+calc_signature("PUT", "application/octet-stream", date, resource));
headers.append("Content-Type: application/octet-stream");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers.get());
if (curl_easy_perform(curl) != 0)
return -EIO;
return 0;
}
static int
s3fs_open(const char *path, struct fuse_file_info *fi) {
cout << "open:" << " path="<< path << endl;
fi->fh = reinterpret_cast<uint64_t>(new string);
return 0;
}
static int
s3fs_read(const char *path, char *buf, size_t size, off_t offset, struct fuse_file_info *fi) {
cout << "read:"<< " path="<< path << " size="<< size << " offset="<< offset << endl;
string responseText;
string host = "http://s3.amazonaws.com";
string resource = urlEncode("/"+bucket + path);
string url = host + resource;
auto_curl curl;
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &responseText);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writeCallback);
auto_curl_slist headers;
string date = get_date();
headers.append("Date: "+date);
headers.append("Authorization: AWS "+AWSAccessKeyId+":"+calc_signature("GET", "", date, resource));
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers.get());
// tricky...
char range[100];
size_t x = offset;
size_t y = offset + size - 1;
sprintf(range, "%u-%u", x, y);
curl_easy_setopt(curl, CURLOPT_RANGE, range);
if (curl_easy_perform(curl) != 0) {
long responseCode;
if (curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &responseCode) != 0)
return -EIO;
if (responseCode == 404)
return -ENOENT;
return -EIO;
}
size_t count = min(size, responseText.size());
memcpy(buf, responseText.data(), count);
return count;
}
static int
s3fs_write(const char *path, const char *buf, size_t size, off_t offset, struct fuse_file_info *fi) {
cout << "write:"<< " path="<< path << " size="<< size << " offset="<< offset << endl;
// ### TODO lock?!?
// ### TODO some sort of scheme to detect a partial write and then do a complete read and then a complete write...
size_t off = offset;
string* str = reinterpret_cast<string*>(fi->fh);
if ((*str).size() < off+size)
(*str).resize(off+size);
memcpy(&(*str)[off], buf, size);
return size;
}
static int
s3fs_statfs(const char *path, struct statvfs *stbuf) {
// 256T
stbuf->f_bsize = 0X1000000;
stbuf->f_blocks = 0X1000000;
stbuf->f_bfree = 0x1000000;
stbuf->f_bavail = 0x1000000;
return 0;
}
static int
s3fs_flush(const char *path, struct fuse_file_info *fi) {
cout << "flush: path=" << path << endl;
if (fi->fh != 0) {
string* requestText = reinterpret_cast<string*>(fi->fh);
if ((*requestText).size() > 0) {
string host = "http://s3.amazonaws.com";
string resource = urlEncode("/"+bucket + path);
string url = host + resource;
auto_curl curl;
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl, CURLOPT_UPLOAD, true); // HTTP PUT
curl_easy_setopt(curl, CURLOPT_INFILESIZE, (*requestText).size()); // Content-Length
curl_easy_setopt(curl, CURLOPT_READDATA, requestText);
curl_easy_setopt(curl, CURLOPT_READFUNCTION, readCallback);
auto_curl_slist headers;
string date = get_date();
headers.append("Date: "+date);
headers.append("Authorization: AWS "+AWSAccessKeyId+":"+calc_signature("PUT", "application/octet-stream", date, resource));
headers.append("Content-Type: application/octet-stream");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers.get());
if (curl_easy_perform(curl) != 0)
return -EIO;
return 0;
}
}
return 0;
}
static int
s3fs_release(const char *path, struct fuse_file_info *fi) {
cout << "release:" << " path=" << path << endl;
string* requestText = reinterpret_cast<string*>(fi->fh);
delete requestText;
return 0;
}
static int
s3fs_readdir(const char *path, void *buf, fuse_fill_dir_t filler, off_t offset, struct fuse_file_info *fi) {
cout << "readdir:"<< " path="<< path << endl;
string NextMarker;
string IsTruncated("true");
while (IsTruncated == "true") {
string responseText;
string resource = urlEncode("/"+bucket); // this is what gets signed
string query = "delimiter=/&prefix=";
if (strcmp(path, "/") != 0)
query += urlEncode(string(path).substr(1) + "/");
if (NextMarker.size() > 0)
query += "&marker=" + urlEncode(NextMarker);
string url = host + resource + "?"+ query;
auto_curl curl;
curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, true);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &responseText);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, writeCallback);
auto_curl_slist headers;
string date = get_date();
headers.append("Date: "+date);
headers.append("Authorization: AWS "+AWSAccessKeyId+":"+calc_signature("GET", "", date, resource));
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers.get());
if (curl_easy_perform(curl) != 0) {
long responseCode;
if (curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &responseCode) != 0)
return -EIO;
// ### TODO need to differentiate between no such bucket a little bit better here...
// need to parse response document and return -EIO if <Error><Code>NoSuchBucket</Code>
if (responseCode == 404) {
if (strcmp(path, "/") == 0)
return -EIO;
return -ENOENT;
}
return -EIO;
}
{
xmlDocPtr doc = xmlReadMemory(responseText.c_str(), responseText.size(), "", NULL, 0);
if (doc != NULL&& doc->children != NULL) {
for (xmlNodePtr cur_node = doc->children->children; cur_node != NULL; cur_node = cur_node->next) {
string cur_node_name(reinterpret_cast<const char *>(cur_node->name));
if (cur_node_name == "IsTruncated")
IsTruncated = reinterpret_cast<const char *>(cur_node->children->content);
if (cur_node_name == "NextMarker")
NextMarker = reinterpret_cast<const char *>(cur_node->children->content);
if (cur_node_name == "Contents") {
if (cur_node->children != NULL) {
string Key;
string LastModified;
string Size;
for (xmlNodePtr sub_node = cur_node->children; sub_node != NULL; sub_node = sub_node->next) {
if (sub_node->type == XML_ELEMENT_NODE) {
string elementName = reinterpret_cast<const char*>(sub_node->name);
if (sub_node->children != NULL) {
if (sub_node->children->type == XML_TEXT_NODE) {
if (elementName == "Key")
Key = reinterpret_cast<const char *>(sub_node->children->content);
if (elementName == "LastModified")
LastModified = reinterpret_cast<const char *>(sub_node->children->content);
if (elementName == "Size")
Size = reinterpret_cast<const char *>(sub_node->children->content);
}
}
}
}
if (Key.size() > 0) {
struct stat st;
memset(&st, 0, sizeof(st));
st.st_nlink = 1; // see fuse faq
// mode
st.st_mode = S_IFREG | 0755;
// size
stringstream tmp(Size);
tmp >> st.st_size;
// modified... something like "2005-12-31T23:59:59Z"
struct tm gmt;
strptime(LastModified.c_str(), "%Y-%m-%dT%H:%M:%SZ", &gmt);
st.st_mtime = timegm(&gmt);
// blocks
st.st_blocks = st.st_size / 512 + 1;
// if size is 0 then we don't know whether its a file or a directory...
// defer to getattr() to determine whether its a file or a directory from Content-Type
if (st.st_size > 0) {
auto_lock lock(stat_cache_lock);
stat_cache["/"+Key] = st;
}
if (filler(buf, basename((char*)Key.c_str()), 0, 0))
break;
}
}
}
}
}
xmlFreeDoc(doc);
}
}
return 0;
}
static void*
s3fs_init(struct fuse_conn_info *conn) {
printf("init\n");
pthread_mutex_init(&stat_cache_lock, NULL);
pthread_mutex_init(&curl_handles_lock, NULL);
return 0;
}
static void
s3fs_destroy(void*) {
printf("destroy\n");
pthread_mutex_destroy(&stat_cache_lock);
pthread_mutex_destroy(&curl_handles_lock);
}
static int
s3fs_access(const char *path, int mask) {
cout << "###access:" << " path=" << path << endl;
return 0;
}
// aka touch
static int
s3fs_utimens(const char *path, const struct timespec ts[2]) {
cout << "###utimens: path=" << path << endl;
return -EPERM;
}
static int
my_fuse_opt_proc(void *data, const char *arg, int key, struct fuse_args *outargs) {
if (key == FUSE_OPT_KEY_NONOPT) {
if (bucket.size() == 0) {
bucket = arg;
return 0;
}
}
if (key == FUSE_OPT_KEY_OPT) {
if (strstr(arg, "accessKeyId=") != 0) {
AWSAccessKeyId = strchr(arg, '=') + 1;
return 0;
}
if (strstr(arg, "secretAccessKey=") != 0) {
AWSSecretAccessKey = strchr(arg, '=') + 1;
return 0;
}
}
return 1;
}
static struct fuse_operations s3fs_oper;
int
main(int argc, char *argv[]) {
memset(&s3fs_oper, sizeof(s3fs_oper), 0);
struct fuse_args custom_args = FUSE_ARGS_INIT(argc, argv);
fuse_opt_parse(&custom_args, NULL, NULL, my_fuse_opt_proc);
if (bucket.size() == 0) {
cout << argv[0] << ": " << "missing bucket" << endl;
exit(1);
}
if (AWSSecretAccessKey.size() == 0) {
string line;
ifstream passwd("/etc/passwd-s3fs");
while (getline(passwd, line)) {
if (line[0]=='#')
continue;
size_t pos = line.find(':');
if (pos != string::npos) {
// is accessKeyId missing?
if (AWSAccessKeyId.size() == 0)
AWSAccessKeyId = line.substr(0, pos);
// is secretAccessKey missing?
if (AWSSecretAccessKey.size() == 0) {
if (line.substr(0, pos) == AWSAccessKeyId)
AWSSecretAccessKey = line.substr(pos + 1, string::npos);
}
}
}
}
if (AWSAccessKeyId.size() == 0) {
cout << argv[0] << ": " << "missing accessKeyId.. see /etc/passwd-s3fs or use, e.g., -o accessKeyId=10QO29WI38EU47RY56T" << endl;
exit(1);
}
if (AWSSecretAccessKey.size() == 0) {
cout << argv[0] << ": " << "missing secretAccessKey... see /etc/passwd-s3fs" << endl;
exit(1);
}
s3fs_oper.getattr = s3fs_getattr;
s3fs_oper.readlink = s3fs_readlink;
s3fs_oper.mknod = s3fs_mknod;
s3fs_oper.mkdir = s3fs_mkdir;
s3fs_oper.unlink = s3fs_unlink;
s3fs_oper.rmdir = s3fs_rmdir;
s3fs_oper.symlink = s3fs_symlink;
s3fs_oper.rename = s3fs_rename;
s3fs_oper.link = s3fs_link;
s3fs_oper.chmod = s3fs_chmod;
s3fs_oper.chown = s3fs_chown;
s3fs_oper.truncate = s3fs_truncate;
s3fs_oper.open = s3fs_open;
s3fs_oper.read = s3fs_read;
s3fs_oper.write = s3fs_write;
s3fs_oper.statfs = s3fs_statfs;
s3fs_oper.flush = s3fs_flush;
s3fs_oper.release = s3fs_release;
s3fs_oper.readdir = s3fs_readdir;
s3fs_oper.init = s3fs_init;
s3fs_oper.destroy = s3fs_destroy;
s3fs_oper.access = s3fs_access;
s3fs_oper.utimens = s3fs_utimens;
return fuse_main(custom_args.argc, custom_args.argv, &s3fs_oper, NULL);
}