HRESULT IISConfigUtil::BuildAppCmdCommand()

in src/ServiceMonitor/IISConfigUtil.cpp [146:199]
40 lines of code
5 McCabe index (conditional complexity)

HRESULT IISConfigUtil::BuildAppCmdCommand(const vector<pair<wstring, wstring>>& vecSet, vector<pair<wstring, wstring>>::iterator& envVecIter, WCHAR* pstrAppPoolName, wstring& pStrCmd, APPCMD_CMD_TYPE appCmdType)
{
    HRESULT hr = S_OK;
    _ASSERT(pstrAppPoolName != NULL);

    pStrCmd.append(m_pstrSysDirPath);
    pStrCmd.append(L"\\inetsrv\\appcmd.exe set config -section:system.applicationHost/applicationPools ");

    for (; envVecIter != vecSet.end(); envVecIter++)
    {
        wstring strEnvName  = envVecIter->first;
        wstring strEnvValue = envVecIter->second;

        //
        // Handle values that have single and double quotes
        //
        Replace(strEnvName, L"'", L"''");
        Replace(strEnvName, L"\"", L"\"\"\"");
        Replace(strEnvValue, L"'", L"''");
        Replace(strEnvValue, L"\"", L"\"\"\"");

        if ((pStrCmd.length() + strEnvName.length() + strEnvValue.length()) > APPCMD_MAX_SIZE)
        {
            //
            // caller need to call again
            //

            hr = ERROR_MORE_DATA;
            break;
        }

        if (appCmdType == APPCMD_ADD)
        {
            pStrCmd.append(L"/+\"[name='");
        }
        else
        {
            pStrCmd.append(L"/-\"[name='");
        }
        pStrCmd.append(pstrAppPoolName);
        pStrCmd.append(L"'].environmentVariables.[name='");
        pStrCmd.append(strEnvName);
        if (appCmdType == APPCMD_ADD)
        {
            pStrCmd.append(L"',value='");
            pStrCmd.append(strEnvValue);
        }
        pStrCmd.append(L"']\" ");
    }

    pStrCmd.append(L" /commit:apphost");

    return hr;
}