icinga2/lib/remote/httputility.cpp

136 lines
3.9 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2018 Icinga Development Team (https://www.icinga.com/) *
* *
* 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/httputility.hpp"
#include "base/json.hpp"
#include "base/logger.hpp"
using namespace icinga;
Dictionary::Ptr HttpUtility::FetchRequestParameters(HttpRequest& request)
{
Dictionary::Ptr result;
String body;
char buffer[1024];
size_t count;
while ((count = request.ReadBody(buffer, sizeof(buffer))) > 0)
body += String(buffer, buffer + count);
if (!body.IsEmpty()) {
#ifdef I2_DEBUG
Log(LogDebug, "HttpUtility")
<< "Request body: '" << body << "'";
#endif /* I2_DEBUG */
result = JsonDecode(body);
}
if (!result)
result = new Dictionary();
typedef std::pair<String, std::vector<String> > kv_pair;
for (const kv_pair& kv : request.RequestUrl->GetQuery()) {
result->Set(kv.first, Array::FromVector(kv.second));
}
return result;
}
void HttpUtility::SendJsonBody(HttpResponse& response, const Dictionary::Ptr& params, const Value& val)
{
response.AddHeader("Content-Type", "application/json");
bool prettyPrint = false;
if (params)
prettyPrint = GetLastParameter(params, "pretty");
String body = JsonEncode(val, prettyPrint);
response.WriteBody(body.CStr(), body.GetLength());
}
Value HttpUtility::GetLastParameter(const Dictionary::Ptr& params, const String& key)
{
Value varr = params->Get(key);
if (!varr.IsObjectType<Array>())
return varr;
Array::Ptr arr = varr;
if (arr->GetLength() == 0)
return Empty;
else
return arr->Get(arr->GetLength() - 1);
}
void HttpUtility::SendJsonError(HttpResponse& response, const Dictionary::Ptr& params,
int code, const String& info, const String& diagnosticInformation)
{
Dictionary::Ptr result = new Dictionary();
response.SetStatus(code, HttpUtility::GetErrorNameByCode(code));
result->Set("error", code);
bool verbose = false;
if (params)
verbose = HttpUtility::GetLastParameter(params, "verbose");
if (!info.IsEmpty())
result->Set("status", info);
if (verbose) {
if (!diagnosticInformation.IsEmpty())
result->Set("diagnostic_information", diagnosticInformation);
}
HttpUtility::SendJsonBody(response, params, result);
}
String HttpUtility::GetErrorNameByCode(const int code)
{
switch(code) {
case 200:
return "OK";
case 201:
return "Created";
case 204:
return "No Content";
case 304:
return "Not Modified";
case 400:
return "Bad Request";
case 401:
return "Unauthorized";
case 403:
return "Forbidden";
case 404:
return "Not Found";
case 409:
return "Conflict";
case 500:
return "Internal Server Error";
default:
return "Unknown Error Code";
}
}