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/*
* Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* @file SignatureFinder.cpp
* @author Bartlomiej Grzelewski (b.grzelewski@samsung.com)
* @version 1.0
* @brief Search for author-signature.xml and signatureN.xml files.
*/
#include <vcore/SignatureFinder.h>
#include <dirent.h>
#include <errno.h>
#include <istream>
#include <pcrecpp.h>
#include <dpl/log/log.h>
namespace ValidationCore {
static const char *SIGNATURE_AUTHOR = "author-signature.xml";
static const char *REGEXP_DISTRIBUTOR_SIGNATURE =
"^(signature)([1-9][0-9]*)(\\.xml)";
class SignatureFinder::Impl {
public:
Impl(const std::string& dir)
: m_dir(dir)
, m_signatureRegexp(REGEXP_DISTRIBUTOR_SIGNATURE)
{}
virtual ~Impl(){}
Result find(SignatureFileInfoSet &set);
private:
std::string m_dir;
pcrecpp::RE m_signatureRegexp;
};
SignatureFinder::Result SignatureFinder::Impl::find(SignatureFileInfoSet &set)
{
DIR *dp;
struct dirent *dirp;
/*
* find a dir
*/
if ((dp = opendir(m_dir.c_str())) == NULL) {
LogError("Error opening directory:" << m_dir);
return ERROR_OPENING_DIR;
}
for (errno = 0; (dirp = readdir(dp)) != NULL; errno = 0) {
/**
* check if it's author signature
*/
if (!strcmp(dirp->d_name, SIGNATURE_AUTHOR)) {
set.insert(SignatureFileInfo(std::string(dirp->d_name), -1));
continue;
}
std::string sig, num, xml;
if (m_signatureRegexp.FullMatch(dirp->d_name, &sig, &num, &xml)) {
std::istringstream stream(num);
int number;
stream >> number;
if (stream.fail()) {
closedir(dp);
return ERROR_ISTREAM;
}
set.insert(SignatureFileInfo(std::string(dirp->d_name), number));
}
}
if (errno != 0) {
LogError("Error in readdir");
closedir(dp);
return ERROR_READING_DIR;
}
closedir(dp);
return NO_ERROR;
}
SignatureFinder::SignatureFinder(const std::string& dir)
: m_impl(new Impl(dir))
{}
SignatureFinder::~SignatureFinder(){
delete m_impl;
}
SignatureFinder::Result SignatureFinder::find(SignatureFileInfoSet &set) {
return m_impl->find(set);
}
} // namespace ValidationCore
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