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// Copyright (c) 2011 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_directory_listing_parser.h"
#include "base/i18n/icu_encoding_detection.h"
#include "base/i18n/icu_string_conversions.h"
#include "base/stl_util-inl.h"
#include "base/string_split.h"
#include "base/string_util.h"
#include "net/base/net_errors.h"
#include "net/ftp/ftp_directory_listing_parser_ls.h"
#include "net/ftp/ftp_directory_listing_parser_netware.h"
#include "net/ftp/ftp_directory_listing_parser_vms.h"
#include "net/ftp/ftp_directory_listing_parser_windows.h"
#include "net/ftp/ftp_server_type_histograms.h"
namespace {
// Converts a string with unknown character encoding to UTF-16. On success
// fills in |converted_text| and |encoding|. Returns network error code.
int ConvertStringToUTF16(const std::string& text,
string16* converted_text,
std::string* encoding) {
std::vector<std::string> encodings;
if (!base::DetectAllEncodings(text, &encodings))
return net::ERR_ENCODING_DETECTION_FAILED;
// Use first encoding that can be used to decode the text.
for (size_t i = 0; i < encodings.size(); i++) {
if (base::CodepageToUTF16(text,
encodings[i].c_str(),
base::OnStringConversionError::FAIL,
converted_text)) {
*encoding = encodings[i];
return net::OK;
}
}
return net::ERR_ENCODING_DETECTION_FAILED;
}
int FillInRawName(const std::string& encoding,
std::vector<net::FtpDirectoryListingEntry>* entries) {
for (size_t i = 0; i < entries->size(); i++) {
if (!base::UTF16ToCodepage(entries->at(i).name, encoding.c_str(),
base::OnStringConversionError::FAIL,
&entries->at(i).raw_name)) {
return net::ERR_ENCODING_CONVERSION_FAILED;
}
}
return net::OK;
}
} // namespace
namespace net {
FtpDirectoryListingEntry::FtpDirectoryListingEntry() {
}
int ParseFtpDirectoryListing(const std::string& text,
const base::Time& current_time,
std::vector<FtpDirectoryListingEntry>* entries) {
std::string encoding;
string16 converted_text;
int rv = ConvertStringToUTF16(text, &converted_text, &encoding);
if (rv != OK)
return rv;
std::vector<string16> lines;
base::SplitString(converted_text, '\n', &lines);
// TODO(phajdan.jr): Use a table of callbacks instead of repeating code.
entries->clear();
if (ParseFtpDirectoryListingLs(lines, current_time, entries)) {
UpdateFtpServerTypeHistograms(SERVER_LS);
return FillInRawName(encoding, entries);
}
entries->clear();
if (ParseFtpDirectoryListingWindows(lines, entries)) {
UpdateFtpServerTypeHistograms(SERVER_WINDOWS);
return FillInRawName(encoding, entries);
}
entries->clear();
if (ParseFtpDirectoryListingVms(lines, entries)) {
UpdateFtpServerTypeHistograms(SERVER_VMS);
return FillInRawName(encoding, entries);
}
entries->clear();
if (ParseFtpDirectoryListingNetware(lines, current_time, entries)) {
UpdateFtpServerTypeHistograms(SERVER_NETWARE);
return FillInRawName(encoding, entries);
}
entries->clear();
UpdateFtpServerTypeHistograms(SERVER_UNKNOWN);
return ERR_UNRECOGNIZED_FTP_DIRECTORY_LISTING_FORMAT;
}
} // namespace
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