xref: /developtools/hapsigner/hapsigntool_cpp/utils/src/string_utils.cpp

/*
 * Copyright (c) 2024-2024 Huawei Device Co., Ltd.
 * 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.
 */
#include "string_utils.h"
#include <cstring>
#include <algorithm>

#include "securec.h"

namespace OHOS {
namespace SignatureTools {

bool StringUtils::IsEmpty(const std::string& cs)
{
    return cs.empty();
}

bool StringUtils::ContainsCase(const std::vector<std::string> &strs, const std::string& str)
{
    std::string fileSuffix = str;
    std::transform(fileSuffix.begin(), fileSuffix.end(), fileSuffix.begin(),
                   [](unsigned char c) { return std::tolower(c); });

    for (const std::string& val : strs) {
        if (val == fileSuffix)
            return true;
    }
    return false;
}

bool StringUtils::CaseCompare(const std::string& str1, const std::string& str2)
{
    return str1 == str2;
}
std::vector<std::string> StringUtils::SplitString(const std::string& str, char delimiter)
{
    std::vector<std::string> tokens;
    std::istringstream tokenStream(str);
    std::string token;
    while (std::getline(tokenStream, token, delimiter)) {
        tokens.push_back(token);
    }
    return tokens;
}
std::string StringUtils::Trim(const std::string& str)
{
    size_t startpos = str.find_first_not_of(" \n\r\f\v");
    if (std::string::npos == startpos) {
        return "";
    }
    size_t endpos = str.find_last_not_of(" \n\r\f\v");
    return str.substr(startpos, endpos - startpos + 1);
}
std::string StringUtils::FormatLoading(std::string& dealStr)
{
    char comma = ',';
    char slash = '/';
    std::string del = dealStr.substr(dealStr.find_first_of("/") + 1, dealStr.size());
    int position = 0;
    while ((position = del.find(slash, position)) != std::string::npos) {
        del.insert(position + 1, " ");
        position++;
    }
    for (auto& ch : del) {
        if (ch == slash) {
            ch = comma;
        }
    }
    return del.append("\n");
}
std::string StringUtils::Pkcs7ToString(PKCS7* p7)
{
    unsigned char* out = NULL;
    int outSize = i2d_PKCS7(p7, &out);
    if (out == NULL || outSize <= 0) {
        SIGNATURE_TOOLS_LOGE("pkcs7 to string failed");
        return "";
    }
    std::string ret;
    ret.clear();
    ret.resize(outSize);
    std::copy(out, out + outSize, &ret[0]);
    OPENSSL_free(out);
    return ret;
}
std::string StringUtils::x509CertToString(X509* cert)
{
    VerifyHapOpensslUtils::GetOpensslErrorMessage();
    BIO* bio = BIO_new(BIO_s_mem());
    PEM_write_bio_X509(bio, cert);
    char* buffer;
    long length = BIO_get_mem_data(bio, &buffer);
    std::string certStr(buffer, length);
    BIO_free(bio);
    return certStr;
}
std::string StringUtils::SubjectToString(X509* cert)
{
    VerifyHapOpensslUtils::GetOpensslErrorMessage();
    X509_NAME* subjectName = X509_get_subject_name(cert);
    if (!subjectName) {
        SIGNATURE_TOOLS_LOGE("Error getting subject name");
        return "";
    }
    VerifyHapOpensslUtils::GetOpensslErrorMessage();
    char* subjectStr = X509_NAME_oneline(subjectName, NULL, 0);
    if (!subjectStr) {
        SIGNATURE_TOOLS_LOGE("Error create subject string");
        return "";
    }
    std::string subjectString(subjectStr);
    std::string result = FormatLoading(subjectString);
    OPENSSL_free(subjectStr);
    return result;
}
bool StringUtils::CheckStringToint(const std::string& in, int& out)
{
    std::istringstream iss(in);
    if ((iss >> out) && iss.eof()) {
        return true;
    }
    SIGNATURE_TOOLS_LOGE("Cannot convert string:%s to integer", in.c_str());
    return false;
}
} // namespace SignatureTools
} // namespace OHOS