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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/ftp/ftp_util.h"
#include <vector>
#include "base/logging.h"
#include "base/string_tokenizer.h"
#include "base/string_util.h"
// For examples of Unix<->VMS path conversions, see the unit test file. On VMS
// a path looks differently depending on whether it's a file or directory.
namespace net {
// static
std::string FtpUtil::UnixFilePathToVMS(const std::string& unix_path) {
if (unix_path.empty())
return std::string();
StringTokenizer tokenizer(unix_path, "/");
std::vector<std::string> tokens;
while (tokenizer.GetNext())
tokens.push_back(tokenizer.token());
if (unix_path[0] == '/') {
// It's an absolute path.
if (tokens.empty()) {
DCHECK_EQ(1U, unix_path.length());
return "[]";
}
if (tokens.size() == 1)
return unix_path.substr(1); // Drop the leading slash.
std::string result(tokens[0] + ":[");
if (tokens.size() == 2) {
// Don't ask why, it just works that way on VMS.
result.append("000000");
} else {
result.append(tokens[1]);
for (size_t i = 2; i < tokens.size() - 1; i++)
result.append("." + tokens[i]);
}
result.append("]" + tokens[tokens.size() - 1]);
return result;
}
if (tokens.size() == 1)
return unix_path;
std::string result("[");
for (size_t i = 0; i < tokens.size() - 1; i++)
result.append("." + tokens[i]);
result.append("]" + tokens[tokens.size() - 1]);
return result;
}
// static
std::string FtpUtil::UnixDirectoryPathToVMS(const std::string& unix_path) {
if (unix_path.empty())
return std::string();
std::string path(unix_path);
if (path[path.length() - 1] != '/')
path.append("/");
// Reuse logic from UnixFilePathToVMS by appending a fake file name to the
// real path and removing it after conversion.
path.append("x");
path = UnixFilePathToVMS(path);
return path.substr(0, path.length() - 1);
}
// static
std::string FtpUtil::VMSPathToUnix(const std::string& vms_path) {
if (vms_path.empty())
return ".";
if (vms_path == "[]")
return "/";
std::string result(vms_path);
if (vms_path[0] == '[') {
// It's a relative path.
ReplaceFirstSubstringAfterOffset(&result, 0, "[.", "");
} else {
// It's an absolute path.
result.insert(0, "/");
ReplaceSubstringsAfterOffset(&result, 0, ":[000000]", "/");
ReplaceSubstringsAfterOffset(&result, 0, ":[", "/");
}
std::replace(result.begin(), result.end(), '.', '/');
std::replace(result.begin(), result.end(), ']', '/');
// Make sure the result doesn't end with a slash.
if (result[result.length() - 1] == '/')
result = result.substr(0, result.length() - 1);
return result;
}
} // namespace
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