icinga2/lib/remote/apiclient.cpp

369 lines
12 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2017 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/apiclient.hpp"
#include "base/base64.hpp"
#include "base/json.hpp"
#include "base/logger.hpp"
#include "base/exception.hpp"
#include "base/convert.hpp"
using namespace icinga;
ApiClient::ApiClient(const String& host, const String& port,
const String& user, const String& password)
: m_Connection(new HttpClientConnection(host, port, true)), m_User(user), m_Password(password)
{
m_Connection->Start();
}
void ApiClient::GetTypes(const TypesCompletionCallback& callback) const
{
Url::Ptr url = new Url();
url->SetScheme("https");
url->SetHost(m_Connection->GetHost());
url->SetPort(m_Connection->GetPort());
url->SetPath({ "v1", "types" });
try {
std::shared_ptr<HttpRequest> req = m_Connection->NewRequest();
req->RequestMethod = "GET";
req->RequestUrl = url;
req->AddHeader("Authorization", "Basic " + Base64::Encode(m_User + ":" + m_Password));
req->AddHeader("Accept", "application/json");
m_Connection->SubmitRequest(req, std::bind(TypesHttpCompletionCallback, _1, _2, callback));
} catch (const std::exception&) {
callback(boost::current_exception(), std::vector<ApiType::Ptr>());
}
}
void ApiClient::TypesHttpCompletionCallback(HttpRequest& request, HttpResponse& response,
const TypesCompletionCallback& callback)
{
Dictionary::Ptr result;
String body;
char buffer[1024];
size_t count;
while ((count = response.ReadBody(buffer, sizeof(buffer))) > 0)
body += String(buffer, buffer + count);
try {
if (response.StatusCode < 200 || response.StatusCode > 299) {
std::string message = "HTTP request failed; Code: " + Convert::ToString(response.StatusCode) + "; Body: " + body;
BOOST_THROW_EXCEPTION(ScriptError(message));
}
std::vector<ApiType::Ptr> types;
result = JsonDecode(body);
Array::Ptr results = result->Get("results");
ObjectLock olock(results);
for (const Dictionary::Ptr typeInfo : results)
{
ApiType::Ptr type = new ApiType();;
type->Abstract = typeInfo->Get("abstract");
type->BaseName = typeInfo->Get("base");
type->Name = typeInfo->Get("name");
type->PluralName = typeInfo->Get("plural_name");
// TODO: attributes
types.emplace_back(std::move(type));
}
callback(boost::exception_ptr(), types);
} catch (const std::exception& ex) {
Log(LogCritical, "ApiClient")
<< "Error while decoding response: " << DiagnosticInformation(ex);
callback(boost::current_exception(), std::vector<ApiType::Ptr>());
}
}
void ApiClient::GetObjects(const String& pluralType, const ObjectsCompletionCallback& callback,
const std::vector<String>& names, const std::vector<String>& attrs, const std::vector<String>& joins, bool all_joins) const
{
Url::Ptr url = new Url();
url->SetScheme("https");
url->SetHost(m_Connection->GetHost());
url->SetPort(m_Connection->GetPort());
url->SetPath({ "v1", "objects", pluralType });
std::map<String, std::vector<String> > params;
for (const String& name : names) {
params[pluralType.ToLower()].push_back(name);
}
for (const String& attr : attrs) {
params["attrs"].push_back(attr);
}
for (const String& join : joins) {
params["joins"].push_back(join);
}
params["all_joins"].push_back(all_joins ? "1" : "0");
url->SetQuery(params);
try {
std::shared_ptr<HttpRequest> req = m_Connection->NewRequest();
req->RequestMethod = "GET";
req->RequestUrl = url;
req->AddHeader("Authorization", "Basic " + Base64::Encode(m_User + ":" + m_Password));
req->AddHeader("Accept", "application/json");
m_Connection->SubmitRequest(req, std::bind(ObjectsHttpCompletionCallback, _1, _2, callback));
} catch (const std::exception&) {
callback(boost::current_exception(), std::vector<ApiObject::Ptr>());
}
}
void ApiClient::ObjectsHttpCompletionCallback(HttpRequest& request,
HttpResponse& response, const ObjectsCompletionCallback& callback)
{
Dictionary::Ptr result;
String body;
char buffer[1024];
size_t count;
while ((count = response.ReadBody(buffer, sizeof(buffer))) > 0)
body += String(buffer, buffer + count);
try {
if (response.StatusCode < 200 || response.StatusCode > 299) {
std::string message = "HTTP request failed; Code: " + Convert::ToString(response.StatusCode) + "; Body: " + body;
BOOST_THROW_EXCEPTION(ScriptError(message));
}
std::vector<ApiObject::Ptr> objects;
result = JsonDecode(body);
Array::Ptr results = result->Get("results");
if (results) {
ObjectLock olock(results);
for (const Dictionary::Ptr objectInfo : results) {
ApiObject::Ptr object = new ApiObject();
object->Name = objectInfo->Get("name");
object->Type = objectInfo->Get("type");
Dictionary::Ptr attrs = objectInfo->Get("attrs");
if (attrs) {
ObjectLock olock(attrs);
for (const Dictionary::Pair& kv : attrs) {
object->Attrs[object->Type.ToLower() + "." + kv.first] = kv.second;
}
}
Dictionary::Ptr joins = objectInfo->Get("joins");
if (joins) {
ObjectLock olock(joins);
for (const Dictionary::Pair& kv : joins) {
Dictionary::Ptr attrs = kv.second;
if (attrs) {
ObjectLock olock(attrs);
for (const Dictionary::Pair& kv2 : attrs) {
object->Attrs[kv.first + "." + kv2.first] = kv2.second;
}
}
}
}
Array::Ptr used_by = objectInfo->Get("used_by");
if (used_by) {
ObjectLock olock(used_by);
for (const Dictionary::Ptr& refInfo : used_by) {
ApiObjectReference ref;
ref.Name = refInfo->Get("name");
ref.Type = refInfo->Get("type");
object->UsedBy.emplace_back(std::move(ref));
}
}
objects.push_back(object);
}
}
callback(boost::exception_ptr(), objects);
} catch (const std::exception& ex) {
Log(LogCritical, "ApiClient")
<< "Error while decoding response: " << DiagnosticInformation(ex);
callback(boost::current_exception(), std::vector<ApiObject::Ptr>());
}
}
void ApiClient::ExecuteScript(const String& session, const String& command, bool sandboxed,
const ExecuteScriptCompletionCallback& callback) const
{
Url::Ptr url = new Url();
url->SetScheme("https");
url->SetHost(m_Connection->GetHost());
url->SetPort(m_Connection->GetPort());
url->SetPath({ "v1", "console", "execute-script" });
std::map<String, std::vector<String> > params;
params["session"].push_back(session);
params["command"].push_back(command);
params["sandboxed"].push_back(sandboxed ? "1" : "0");
url->SetQuery(params);
try {
std::shared_ptr<HttpRequest> req = m_Connection->NewRequest();
req->RequestMethod = "POST";
req->RequestUrl = url;
req->AddHeader("Authorization", "Basic " + Base64::Encode(m_User + ":" + m_Password));
req->AddHeader("Accept", "application/json");
m_Connection->SubmitRequest(req, std::bind(ExecuteScriptHttpCompletionCallback, _1, _2, callback));
} catch (const std::exception&) {
callback(boost::current_exception(), Empty);
}
}
void ApiClient::ExecuteScriptHttpCompletionCallback(HttpRequest& request,
HttpResponse& response, const ExecuteScriptCompletionCallback& callback)
{
Dictionary::Ptr result;
String body;
char buffer[1024];
size_t count;
while ((count = response.ReadBody(buffer, sizeof(buffer))) > 0)
body += String(buffer, buffer + count);
try {
if (response.StatusCode < 200 || response.StatusCode > 299) {
std::string message = "HTTP request failed; Code: " + Convert::ToString(response.StatusCode) + "; Body: " + body;
BOOST_THROW_EXCEPTION(ScriptError(message));
}
result = JsonDecode(body);
Array::Ptr results = result->Get("results");
Value result;
String errorMessage = "Unexpected result from API.";
if (results && results->GetLength() > 0) {
Dictionary::Ptr resultInfo = results->Get(0);
errorMessage = resultInfo->Get("status");
if (resultInfo->Get("code") >= 200 && resultInfo->Get("code") <= 299) {
result = resultInfo->Get("result");
} else {
DebugInfo di;
Dictionary::Ptr debugInfo = resultInfo->Get("debug_info");
if (debugInfo) {
di.Path = debugInfo->Get("path");
di.FirstLine = debugInfo->Get("first_line");
di.FirstColumn = debugInfo->Get("first_column");
di.LastLine = debugInfo->Get("last_line");
di.LastColumn = debugInfo->Get("last_column");
}
bool incompleteExpression = resultInfo->Get("incomplete_expression");
BOOST_THROW_EXCEPTION(ScriptError(errorMessage, di, incompleteExpression));
}
}
callback(boost::exception_ptr(), result);
} catch (const std::exception&) {
callback(boost::current_exception(), Empty);
}
}
void ApiClient::AutocompleteScript(const String& session, const String& command, bool sandboxed,
const AutocompleteScriptCompletionCallback& callback) const
{
Url::Ptr url = new Url();
url->SetScheme("https");
url->SetHost(m_Connection->GetHost());
url->SetPort(m_Connection->GetPort());
url->SetPath({ "v1", "console", "auto-complete-script" });
std::map<String, std::vector<String> > params;
params["session"].push_back(session);
params["command"].push_back(command);
params["sandboxed"].push_back(sandboxed ? "1" : "0");
url->SetQuery(params);
try {
std::shared_ptr<HttpRequest> req = m_Connection->NewRequest();
req->RequestMethod = "POST";
req->RequestUrl = url;
req->AddHeader("Authorization", "Basic " + Base64::Encode(m_User + ":" + m_Password));
req->AddHeader("Accept", "application/json");
m_Connection->SubmitRequest(req, std::bind(AutocompleteScriptHttpCompletionCallback, _1, _2, callback));
} catch (const std::exception&) {
callback(boost::current_exception(), nullptr);
}
}
void ApiClient::AutocompleteScriptHttpCompletionCallback(HttpRequest& request,
HttpResponse& response, const AutocompleteScriptCompletionCallback& callback)
{
Dictionary::Ptr result;
String body;
char buffer[1024];
size_t count;
while ((count = response.ReadBody(buffer, sizeof(buffer))) > 0)
body += String(buffer, buffer + count);
try {
if (response.StatusCode < 200 || response.StatusCode > 299) {
std::string message = "HTTP request failed; Code: " + Convert::ToString(response.StatusCode) + "; Body: " + body;
BOOST_THROW_EXCEPTION(ScriptError(message));
}
result = JsonDecode(body);
Array::Ptr results = result->Get("results");
Array::Ptr suggestions;
String errorMessage = "Unexpected result from API.";
if (results && results->GetLength() > 0) {
Dictionary::Ptr resultInfo = results->Get(0);
errorMessage = resultInfo->Get("status");
if (resultInfo->Get("code") >= 200 && resultInfo->Get("code") <= 299)
suggestions = resultInfo->Get("suggestions");
else
BOOST_THROW_EXCEPTION(ScriptError(errorMessage));
}
callback(boost::exception_ptr(), suggestions);
} catch (const std::exception&) {
callback(boost::current_exception(), nullptr);
}
}