2015-11-02 16:35:21 +01:00
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/******************************************************************************
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* Icinga 2 *
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2017-01-10 15:54:22 +01:00
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* Copyright (C) 2012-2017 Icinga Development Team (https://www.icinga.com/) *
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2015-11-02 16:35:21 +01:00
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "remote/consolehandler.hpp"
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#include "remote/httputility.hpp"
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#include "remote/filterutility.hpp"
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#include "config/configcompiler.hpp"
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#include "base/configtype.hpp"
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#include "base/configwriter.hpp"
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#include "base/scriptglobal.hpp"
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#include "base/logger.hpp"
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#include "base/serializer.hpp"
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#include "base/timer.hpp"
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#include "base/initialize.hpp"
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#include <boost/algorithm/string.hpp>
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#include <set>
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using namespace icinga;
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REGISTER_URLHANDLER("/v1/console", ConsoleHandler);
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static boost::mutex l_QueryMutex;
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static std::map<String, ApiScriptFrame> l_ApiScriptFrames;
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static Timer::Ptr l_FrameCleanupTimer;
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static boost::mutex l_ApiScriptMutex;
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static void ScriptFrameCleanupHandler(void)
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{
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boost::mutex::scoped_lock lock(l_ApiScriptMutex);
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std::vector<String> cleanup_keys;
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typedef std::pair<String, ApiScriptFrame> KVPair;
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2016-08-25 06:19:44 +02:00
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for (const KVPair& kv : l_ApiScriptFrames) {
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2015-11-02 16:35:21 +01:00
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if (kv.second.Seen < Utility::GetTime() - 1800)
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cleanup_keys.push_back(kv.first);
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}
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2016-08-25 06:19:44 +02:00
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for (const String& key : cleanup_keys)
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2015-11-02 16:35:21 +01:00
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l_ApiScriptFrames.erase(key);
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}
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2016-08-27 09:35:08 +02:00
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INITIALIZE_ONCE([]() {
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2015-11-02 16:35:21 +01:00
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l_FrameCleanupTimer = new Timer();
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l_FrameCleanupTimer->OnTimerExpired.connect(boost::bind(ScriptFrameCleanupHandler));
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l_FrameCleanupTimer->SetInterval(30);
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l_FrameCleanupTimer->Start();
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2016-08-27 09:35:08 +02:00
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});
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2015-11-02 16:35:21 +01:00
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2016-05-10 15:16:35 +02:00
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bool ConsoleHandler::HandleRequest(const ApiUser::Ptr& user, HttpRequest& request, HttpResponse& response, const Dictionary::Ptr& params)
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2015-11-02 16:35:21 +01:00
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{
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if (request.RequestUrl->GetPath().size() > 3)
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return false;
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if (request.RequestMethod != "POST")
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return false;
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QueryDescription qd;
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String methodName = request.RequestUrl->GetPath()[2];
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2016-05-10 15:16:35 +02:00
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2015-11-08 17:53:22 +01:00
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FilterUtility::CheckPermission(user, "console");
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2015-11-02 16:35:21 +01:00
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String session = HttpUtility::GetLastParameter(params, "session");
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if (session.IsEmpty())
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session = Utility::NewUniqueID();
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String command = HttpUtility::GetLastParameter(params, "command");
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bool sandboxed = HttpUtility::GetLastParameter(params, "sandboxed");
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2015-11-07 09:11:16 +01:00
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if (methodName == "execute-script")
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2015-11-02 16:35:21 +01:00
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return ExecuteScriptHelper(request, response, command, session, sandboxed);
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2015-11-07 09:11:16 +01:00
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else if (methodName == "auto-complete-script")
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2015-11-02 16:35:21 +01:00
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return AutocompleteScriptHelper(request, response, command, session, sandboxed);
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2015-11-07 09:11:16 +01:00
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HttpUtility::SendJsonError(response, 400, "Invalid method specified: " + methodName);
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2015-11-02 16:35:21 +01:00
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return true;
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}
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bool ConsoleHandler::ExecuteScriptHelper(HttpRequest& request, HttpResponse& response,
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const String& command, const String& session, bool sandboxed)
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{
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2016-12-08 00:59:24 +01:00
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Log(LogNotice, "Console")
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2015-11-02 16:35:21 +01:00
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<< "Executing expression: " << command;
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ApiScriptFrame& lsf = l_ApiScriptFrames[session];
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lsf.Seen = Utility::GetTime();
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if (!lsf.Locals)
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lsf.Locals = new Dictionary();
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String fileName = "<" + Convert::ToString(lsf.NextLine) + ">";
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lsf.NextLine++;
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lsf.Lines[fileName] = command;
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Array::Ptr results = new Array();
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Dictionary::Ptr resultInfo = new Dictionary();
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Expression *expr = NULL;
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Value exprResult;
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try {
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expr = ConfigCompiler::CompileText(fileName, command);
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ScriptFrame frame;
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frame.Locals = lsf.Locals;
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frame.Self = lsf.Locals;
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frame.Sandboxed = sandboxed;
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exprResult = expr->Evaluate(frame);
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resultInfo->Set("code", 200);
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resultInfo->Set("status", "Executed successfully.");
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resultInfo->Set("result", Serialize(exprResult, 0));
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} catch (const ScriptError& ex) {
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DebugInfo di = ex.GetDebugInfo();
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std::ostringstream msgbuf;
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msgbuf << di.Path << ": " << lsf.Lines[di.Path] << "\n"
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<< String(di.Path.GetLength() + 2, ' ')
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<< String(di.FirstColumn, ' ') << String(di.LastColumn - di.FirstColumn + 1, '^') << "\n"
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<< ex.what() << "\n";
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resultInfo->Set("code", 500);
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resultInfo->Set("status", String(msgbuf.str()));
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resultInfo->Set("incomplete_expression", ex.IsIncompleteExpression());
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Dictionary::Ptr debugInfo = new Dictionary();
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debugInfo->Set("path", di.Path);
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debugInfo->Set("first_line", di.FirstLine);
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debugInfo->Set("first_column", di.FirstColumn);
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debugInfo->Set("last_line", di.LastLine);
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debugInfo->Set("last_column", di.LastColumn);
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resultInfo->Set("debug_info", debugInfo);
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} catch (...) {
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delete expr;
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throw;
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}
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delete expr;
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results->Add(resultInfo);
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Dictionary::Ptr result = new Dictionary();
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result->Set("results", results);
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response.SetStatus(200, "OK");
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HttpUtility::SendJsonBody(response, result);
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return true;
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}
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bool ConsoleHandler::AutocompleteScriptHelper(HttpRequest& request, HttpResponse& response,
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const String& command, const String& session, bool sandboxed)
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{
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Log(LogInformation, "Console")
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<< "Auto-completing expression: " << command;
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ApiScriptFrame& lsf = l_ApiScriptFrames[session];
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lsf.Seen = Utility::GetTime();
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if (!lsf.Locals)
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lsf.Locals = new Dictionary();
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Array::Ptr results = new Array();
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Dictionary::Ptr resultInfo = new Dictionary();
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ScriptFrame frame;
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frame.Locals = lsf.Locals;
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frame.Self = lsf.Locals;
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frame.Sandboxed = sandboxed;
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resultInfo->Set("code", 200);
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resultInfo->Set("status", "Auto-completed successfully.");
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resultInfo->Set("suggestions", Array::FromVector(GetAutocompletionSuggestions(command, frame)));
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results->Add(resultInfo);
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Dictionary::Ptr result = new Dictionary();
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result->Set("results", results);
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response.SetStatus(200, "OK");
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HttpUtility::SendJsonBody(response, result);
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return true;
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}
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static void AddSuggestion(std::vector<String>& matches, const String& word, const String& suggestion)
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{
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if (suggestion.Find(word) != 0)
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return;
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matches.push_back(suggestion);
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}
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2016-08-12 15:36:47 +02:00
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static void AddSuggestions(std::vector<String>& matches, const String& word, const String& pword, bool withFields, const Value& value)
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2016-08-12 11:25:36 +02:00
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{
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String prefix;
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if (!pword.IsEmpty())
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prefix = pword + ".";
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if (value.IsObjectType<Dictionary>()) {
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Dictionary::Ptr dict = value;
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ObjectLock olock(dict);
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2016-08-25 06:19:44 +02:00
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for (const Dictionary::Pair& kv : dict) {
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2016-08-12 11:25:36 +02:00
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AddSuggestion(matches, word, prefix + kv.first);
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}
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}
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2016-08-12 15:36:47 +02:00
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if (withFields) {
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Type::Ptr type = value.GetReflectionType();
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2016-08-12 11:25:36 +02:00
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2016-08-12 15:36:47 +02:00
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for (int i = 0; i < type->GetFieldCount(); i++) {
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Field field = type->GetFieldInfo(i);
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2016-08-12 11:25:36 +02:00
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2016-08-12 15:36:47 +02:00
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AddSuggestion(matches, word, prefix + field.Name);
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}
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2016-08-12 11:25:36 +02:00
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2016-08-12 13:13:01 +02:00
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while (type) {
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Object::Ptr prototype = type->GetPrototype();
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Dictionary::Ptr dict = dynamic_pointer_cast<Dictionary>(prototype);
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2016-08-12 11:25:36 +02:00
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2016-08-12 13:13:01 +02:00
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if (dict) {
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ObjectLock olock(dict);
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2016-08-25 06:19:44 +02:00
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for (const Dictionary::Pair& kv : dict) {
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2016-08-12 13:13:01 +02:00
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AddSuggestion(matches, word, prefix + kv.first);
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}
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2016-08-12 11:25:36 +02:00
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}
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2016-08-12 13:13:01 +02:00
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type = type->GetBaseType();
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}
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2016-08-12 11:25:36 +02:00
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}
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}
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2015-11-02 16:35:21 +01:00
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std::vector<String> ConsoleHandler::GetAutocompletionSuggestions(const String& word, ScriptFrame& frame)
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{
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std::vector<String> matches;
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2016-08-25 06:19:44 +02:00
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for (const String& keyword : ConfigWriter::GetKeywords()) {
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2015-11-02 16:35:21 +01:00
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AddSuggestion(matches, word, keyword);
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}
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{
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ObjectLock olock(frame.Locals);
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2016-08-25 06:19:44 +02:00
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for (const Dictionary::Pair& kv : frame.Locals) {
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2015-11-02 16:35:21 +01:00
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AddSuggestion(matches, word, kv.first);
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}
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}
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{
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ObjectLock olock(ScriptGlobal::GetGlobals());
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2016-08-25 06:19:44 +02:00
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for (const Dictionary::Pair& kv : ScriptGlobal::GetGlobals()) {
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2015-11-02 16:35:21 +01:00
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AddSuggestion(matches, word, kv.first);
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}
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}
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2016-08-12 13:13:01 +02:00
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{
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Array::Ptr imports = ScriptFrame::GetImports();
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ObjectLock olock(imports);
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2016-08-25 06:19:44 +02:00
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for (const Value& import : imports) {
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2016-08-12 13:13:01 +02:00
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AddSuggestions(matches, word, "", false, import);
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2016-08-12 11:25:36 +02:00
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}
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}
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2015-11-02 16:35:21 +01:00
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String::SizeType cperiod = word.RFind(".");
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2016-02-08 17:10:12 +01:00
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if (cperiod != String::NPos) {
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2015-11-02 16:35:21 +01:00
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String pword = word.SubStr(0, cperiod);
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Value value;
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try {
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Expression *expr = ConfigCompiler::CompileText("temp", pword);
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if (expr)
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value = expr->Evaluate(frame);
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2016-08-12 13:13:01 +02:00
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AddSuggestions(matches, word, pword, true, value);
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2015-11-02 16:35:21 +01:00
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} catch (...) { /* Ignore the exception */ }
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}
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return matches;
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}
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