icinga2/lib/remote/configfileshandler.cpp

101 lines
4.0 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2016 Icinga Development Team (https://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "remote/configfileshandler.hpp"
#include "remote/configpackageutility.hpp"
#include "remote/httputility.hpp"
#include "remote/filterutility.hpp"
#include "base/exception.hpp"
#include <boost/algorithm/string/join.hpp>
#include <fstream>
using namespace icinga;
REGISTER_URLHANDLER("/v1/config/files", ConfigFilesHandler);
bool ConfigFilesHandler::HandleRequest(const ApiUser::Ptr& user, HttpRequest& request, HttpResponse& response)
{
if (request.RequestMethod != "GET")
return false;
Dictionary::Ptr params = HttpUtility::FetchRequestParameters(request);
const std::vector<String>& urlPath = request.RequestUrl->GetPath();
if (urlPath.size() >= 4)
params->Set("package", urlPath[3]);
if (urlPath.size() >= 5)
params->Set("stage", urlPath[4]);
if (urlPath.size() >= 6) {
std::vector<String> tmpPath(urlPath.begin() + 5, urlPath.end());
params->Set("path", boost::algorithm::join(tmpPath, "/"));
}
if (request.Headers->Get("accept") == "application/json") {
HttpUtility::SendJsonError(response, 400, "Invalid Accept header. Either remove the Accept header or set it to 'application/octet-stream'.");
return true;
}
FilterUtility::CheckPermission(user, "config/query");
String packageName = HttpUtility::GetLastParameter(params, "package");
String stageName = HttpUtility::GetLastParameter(params, "stage");
if (!ConfigPackageUtility::ValidateName(packageName)) {
HttpUtility::SendJsonError(response, 400, "Invalid package name.");
return true;
}
if (!ConfigPackageUtility::ValidateName(stageName)) {
HttpUtility::SendJsonError(response, 400, "Invalid stage name.");
return true;
}
String relativePath = HttpUtility::GetLastParameter(params, "path");
if (ConfigPackageUtility::ContainsDotDot(relativePath)) {
HttpUtility::SendJsonError(response, 400, "Path contains '..' (not allowed).");
return true;
}
String path = ConfigPackageUtility::GetPackageDir() + "/" + packageName + "/" + stageName + "/" + relativePath;
if (!Utility::PathExists(path)) {
HttpUtility::SendJsonError(response, 404, "Path not found.");
return true;
}
try {
std::ifstream fp(path.CStr(), std::ifstream::in | std::ifstream::binary);
fp.exceptions(std::ifstream::badbit);
String content((std::istreambuf_iterator<char>(fp)), std::istreambuf_iterator<char>());
response.SetStatus(200, "OK");
response.AddHeader("Content-Type", "application/octet-stream");
response.WriteBody(content.CStr(), content.GetLength());
} catch (const std::exception& ex) {
HttpUtility::SendJsonError(response, 500, "Could not read file.",
HttpUtility::GetLastParameter(params, "verboseErrors") ? DiagnosticInformation(ex) : "");
}
return true;
}