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libreoffice-online/loolwsd/ChildProcessSession.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <sys/prctl.h>
#include <iostream>
#include <Poco/Exception.h>
#include <Poco/File.h>
#include <Poco/JSON/Object.h>
#include <Poco/JSON/Parser.h>
#include <Poco/Net/WebSocket.h>
#include <Poco/Notification.h>
#include <Poco/NotificationQueue.h>
#include <Poco/Path.h>
#include <Poco/Process.h>
#include <Poco/String.h>
#include <Poco/StringTokenizer.h>
#include <Poco/URI.h>
#include "Common.hpp"
#include "ChildProcessSession.hpp"
#include "LOKitHelper.hpp"
#include "LOOLProtocol.hpp"
#include "Util.hpp"
#include "Rectangle.hpp"
using namespace LOOLProtocol;
using Poco::Exception;
using Poco::File;
using Poco::IOException;
using Poco::JSON::Object;
using Poco::JSON::Parser;
using Poco::Notification;
using Poco::NotificationQueue;
using Poco::Net::WebSocket;
using Poco::Path;
using Poco::Process;
using Poco::ProcessHandle;
using Poco::StringTokenizer;
using Poco::URI;
class CallbackNotification: public Poco::Notification
{
public:
typedef Poco::AutoPtr<CallbackNotification> Ptr;
CallbackNotification(const int nType, const std::string& rPayload)
: _nType(nType),
_aPayload(rPayload)
{
}
const int _nType;
const std::string _aPayload;
};
/// This thread handles callbacks from the lokit instance.
class CallbackWorker: public Poco::Runnable
{
public:
CallbackWorker(NotificationQueue& queue, ChildProcessSession& session):
_queue(queue),
_session(session),
_stop(false)
{
}
void callback(const int nType, const std::string& rPayload)
{
auto lock = _session.getLock();
Log::trace() << "CallbackWorker::callback [" << _session.getViewId() << "] "
<< LOKitHelper::kitCallbackTypeToString(nType)
<< " [" << rPayload << "]." << Log::end;
if (_session.isDisconnected())
{
Log::trace("Skipping callback on disconnected session " + _session.getName());
return;
}
else if (_session.isInactive())
{
Log::trace("Skipping callback on inactive session " + _session.getName());
return;
}
switch (nType)
{
case LOK_CALLBACK_INVALIDATE_TILES:
{
int curPart = _session.getLoKitDocument()->pClass->getPart(_session.getLoKitDocument());
_session.sendTextFrame("curpart: part=" + std::to_string(curPart));
if (_session.getDocType() == "text")
{
curPart = 0;
}
StringTokenizer tokens(rPayload, " ", StringTokenizer::TOK_IGNORE_EMPTY | StringTokenizer::TOK_TRIM);
if (tokens.count() == 4)
{
int x, y, width, height;
try
{
x = std::stoi(tokens[0]);
y = std::stoi(tokens[1]);
width = std::stoi(tokens[2]);
height = std::stoi(tokens[3]);
}
catch (const std::out_of_range&)
{
// something went wrong, invalidate everything
Log::warn("Ignoring integer values out of range: " + rPayload);
x = 0;
y = 0;
width = INT_MAX;
height = INT_MAX;
}
_session.sendTextFrame("invalidatetiles:"
" part=" + std::to_string(curPart) +
" x=" + std::to_string(x) +
" y=" + std::to_string(y) +
" width=" + std::to_string(width) +
" height=" + std::to_string(height));
}
else
{
_session.sendTextFrame("invalidatetiles: " + rPayload);
}
}
break;
case LOK_CALLBACK_INVALIDATE_VISIBLE_CURSOR:
_session.sendTextFrame("invalidatecursor: " + rPayload);
break;
case LOK_CALLBACK_TEXT_SELECTION:
_session.sendTextFrame("textselection: " + rPayload);
break;
case LOK_CALLBACK_TEXT_SELECTION_START:
_session.sendTextFrame("textselectionstart: " + rPayload);
break;
case LOK_CALLBACK_TEXT_SELECTION_END:
_session.sendTextFrame("textselectionend: " + rPayload);
break;
case LOK_CALLBACK_CURSOR_VISIBLE:
_session.sendTextFrame("cursorvisible: " + rPayload);
break;
case LOK_CALLBACK_GRAPHIC_SELECTION:
_session.sendTextFrame("graphicselection: " + rPayload);
break;
case LOK_CALLBACK_CELL_CURSOR:
_session.sendTextFrame("cellcursor: " + rPayload);
break;
case LOK_CALLBACK_CELL_FORMULA:
_session.sendTextFrame("cellformula: " + rPayload);
break;
case LOK_CALLBACK_MOUSE_POINTER:
_session.sendTextFrame("mousepointer: " + rPayload);
break;
case LOK_CALLBACK_HYPERLINK_CLICKED:
_session.sendTextFrame("hyperlinkclicked: " + rPayload);
break;
case LOK_CALLBACK_STATE_CHANGED:
_session.sendTextFrame("statechanged: " + rPayload);
break;
case LOK_CALLBACK_SEARCH_NOT_FOUND:
_session.sendTextFrame("searchnotfound: " + rPayload);
break;
case LOK_CALLBACK_SEARCH_RESULT_SELECTION:
_session.sendTextFrame("searchresultselection: " + rPayload);
break;
case LOK_CALLBACK_DOCUMENT_SIZE_CHANGED:
_session.getStatus("", 0);
_session.getPartPageRectangles("", 0);
break;
case LOK_CALLBACK_SET_PART:
_session.sendTextFrame("setpart: " + rPayload);
break;
case LOK_CALLBACK_UNO_COMMAND_RESULT:
_session.sendTextFrame("unocommandresult: " + rPayload);
break;
case LOK_CALLBACK_ERROR:
{
Parser parser;
Poco::Dynamic::Var var = parser.parse(rPayload);
Object::Ptr object = var.extract<Object::Ptr>();
_session.sendTextFrame("error: cmd=" + object->get("cmd").toString() +
" kind=" + object->get("kind").toString() + " code=" + object->get("code").toString());
}
break;
}
}
void run()
{
static const std::string thread_name = "kit_callback";
if (prctl(PR_SET_NAME, reinterpret_cast<unsigned long>(thread_name.c_str()), 0, 0, 0) != 0)
Log::error("Cannot set thread name to " + thread_name + ".");
Log::debug("Thread [" + thread_name + "] started.");
while (!_stop && !TerminationFlag)
{
Notification::Ptr aNotification(_queue.waitDequeueNotification());
if (!_stop && !TerminationFlag && aNotification)
{
CallbackNotification::Ptr aCallbackNotification = aNotification.cast<CallbackNotification>();
assert(aCallbackNotification);
const auto nType = aCallbackNotification->_nType;
try
{
callback(nType, aCallbackNotification->_aPayload);
}
catch (const Exception& exc)
{
Log::error() << "Error while handling callback [" << LOKitHelper::kitCallbackTypeToString(nType) << "]. "
<< exc.displayText()
<< (exc.nested() ? " (" + exc.nested()->displayText() + ")" : "")
<< Log::end;
}
catch (const std::exception& exc)
{
Log::error("Error while handling callback [" + LOKitHelper::kitCallbackTypeToString(nType) + "]. " +
std::string("Exception: ") + exc.what());
}
}
else
break;
}
Log::debug("Thread [" + thread_name + "] finished.");
}
void stop()
{
_stop = true;
_queue.wakeUpAll();
}
private:
NotificationQueue& _queue;
ChildProcessSession& _session;
volatile bool _stop;
};
std::recursive_mutex ChildProcessSession::Mutex;
ChildProcessSession::ChildProcessSession(const std::string& id,
std::shared_ptr<Poco::Net::WebSocket> ws,
LibreOfficeKitDocument * loKitDocument,
const std::string& jailId,
std::function<LibreOfficeKitDocument*(const std::string&, const std::string&, const std::string&, bool)> onLoad,
std::function<void(const std::string&)> onUnload) :
LOOLSession(id, Kind::ToMaster, ws),
_loKitDocument(loKitDocument),
_multiView(std::getenv("LOK_VIEW_CALLBACK")),
_jailId(jailId),
_viewId(0),
_clientPart(0),
_onLoad(onLoad),
_onUnload(onUnload),
_callbackWorker(new CallbackWorker(_callbackQueue, *this))
{
Log::info("ChildProcessSession ctor [" + getName() + "].");
_callbackThread.start(*_callbackWorker);
}
ChildProcessSession::~ChildProcessSession()
{
Log::info("~ChildProcessSession dtor [" + getName() + "].");
disconnect();
// Wait for the callback worker to finish.
_callbackWorker->stop();
_callbackThread.join();
}
void ChildProcessSession::disconnect(const std::string& reason)
{
if (!isDisconnected())
{
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
//TODO: Handle saving to temp etc.
_onUnload(getId());
LOOLSession::disconnect(reason);
}
}
bool ChildProcessSession::handleDisconnect(Poco::StringTokenizer& tokens)
{
return LOOLSession::handleDisconnect(tokens);
}
bool ChildProcessSession::_handleInput(const char *buffer, int length)
{
if (isInactive() && _loKitDocument != nullptr)
{
Log::debug("Handling message after inactivity of " + std::to_string(_stats.getInactivityMS()) + "ms.");
// Client is getting active again.
// Send invalidation and other sync-up messages.
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
int curPart = _loKitDocument->pClass->getPart(_loKitDocument);
sendTextFrame("curpart: part=" + std::to_string(curPart));
if (getDocType() == "text")
{
curPart = 0;
}
sendTextFrame("invalidatetiles:"
" part=" + std::to_string(curPart) +
" x=0 y=0"
" width=" + std::to_string(INT_MAX) +
" height=" + std::to_string(INT_MAX));
//TODO: Sync cursor.
}
_stats.updateLastActivityTime();
const std::string firstLine = getFirstLine(buffer, length);
StringTokenizer tokens(firstLine, " ", StringTokenizer::TOK_IGNORE_EMPTY | StringTokenizer::TOK_TRIM);
if (tokens[0] == "canceltiles")
{
// this command makes sense only on the command queue level, nothing
// to do here
return true;
}
else if (tokens[0] == "commandvalues")
{
return getCommandValues(buffer, length, tokens);
}
else if (tokens[0] == "partpagerectangles")
{
return getPartPageRectangles(buffer, length);
}
else if (tokens[0] == "load")
{
if (_isDocLoaded)
{
sendTextFrame("error: cmd=load kind=docalreadyloaded");
return false;
}
_isDocLoaded = loadDocument(buffer, length, tokens);
return _isDocLoaded;
}
else if (!_isDocLoaded)
{
sendTextFrame("error: cmd=" + tokens[0] + " kind=nodocloaded");
return false;
}
else if (tokens[0] == "renderfont")
{
sendFontRendering(buffer, length, tokens);
}
else if (tokens[0] == "setclientpart")
{
return setClientPart(buffer, length, tokens);
}
else if (tokens[0] == "setpage")
{
return setPage(buffer, length, tokens);
}
else if (tokens[0] == "status")
{
return getStatus(buffer, length);
}
else if (tokens[0] == "tile")
{
sendTile(buffer, length, tokens);
}
else if (tokens[0] == "tilecombine")
{
sendCombinedTiles(buffer, length, tokens);
}
else
{
// All other commands are such that they always require a LibreOfficeKitDocument session,
// i.e. need to be handled in a child process.
assert(tokens[0] == "clientzoom" ||
tokens[0] == "clientvisiblearea" ||
tokens[0] == "disconnect" ||
tokens[0] == "downloadas" ||
tokens[0] == "getchildid" ||
tokens[0] == "gettextselection" ||
tokens[0] == "paste" ||
tokens[0] == "insertfile" ||
tokens[0] == "key" ||
tokens[0] == "mouse" ||
tokens[0] == "uno" ||
tokens[0] == "selecttext" ||
tokens[0] == "selectgraphic" ||
tokens[0] == "resetselection" ||
tokens[0] == "saveas" ||
tokens[0] == "unload");
{
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
if (_docType != "text" && _loKitDocument->pClass->getPart(_loKitDocument) != _clientPart)
{
_loKitDocument->pClass->setPart(_loKitDocument, _clientPart);
}
}
if (tokens[0] == "clientzoom")
{
return clientZoom(buffer, length, tokens);
}
else if (tokens[0] == "clientvisiblearea")
{
return clientVisibleArea(buffer, length, tokens);
}
else if (tokens[0] == "disconnect")
{
// This was the last we would hear from the client on this socket.
return handleDisconnect(tokens);
}
else if (tokens[0] == "downloadas")
{
return downloadAs(buffer, length, tokens);
}
else if (tokens[0] == "getchildid")
{
return getChildId();
}
else if (tokens[0] == "gettextselection")
{
return getTextSelection(buffer, length, tokens);
}
else if (tokens[0] == "paste")
{
return paste(buffer, length, tokens);
}
else if (tokens[0] == "insertfile")
{
return insertFile(buffer, length, tokens);
}
else if (tokens[0] == "key")
{
return keyEvent(buffer, length, tokens);
}
else if (tokens[0] == "mouse")
{
return mouseEvent(buffer, length, tokens);
}
else if (tokens[0] == "uno")
{
return unoCommand(buffer, length, tokens);
}
else if (tokens[0] == "selecttext")
{
return selectText(buffer, length, tokens);
}
else if (tokens[0] == "selectgraphic")
{
return selectGraphic(buffer, length, tokens);
}
else if (tokens[0] == "resetselection")
{
return resetSelection(buffer, length, tokens);
}
else if (tokens[0] == "saveas")
{
return saveAs(buffer, length, tokens);
}
else if (tokens[0] == "unload")
{
//FIXME: Implement.
assert(!"Not implemented");
}
else
{
assert(false);
}
}
return true;
}
bool ChildProcessSession::loadDocument(const char * /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
int part = -1;
if (tokens.count() < 2)
{
sendTextFrame("error: cmd=load kind=syntax");
return false;
}
std::string timestamp;
parseDocOptions(tokens, part, timestamp);
assert(!_docURL.empty());
assert(!_jailedFilePath.empty());
_loKitDocument = _onLoad(getId(), _jailedFilePath, _docPassword, _isDocPasswordProvided);
if (!_loKitDocument)
return false;
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_viewId = _loKitDocument->pClass->getView(_loKitDocument);
std::string renderingOptions;
if (!_docOptions.empty())
{
Parser parser;
Poco::Dynamic::Var var = parser.parse(_docOptions);
Object::Ptr object = var.extract<Object::Ptr>();
renderingOptions = object->get("rendering").toString();
}
_loKitDocument->pClass->initializeForRendering(_loKitDocument, (renderingOptions.empty() ? nullptr : renderingOptions.c_str()));
if (_docType != "text" && part != -1)
{
_clientPart = part;
_loKitDocument->pClass->setPart(_loKitDocument, part);
}
// Respond by the document status, which has no arguments.
if (!getStatus(nullptr, 0))
return false;
Log::info("Loaded session " + getId());
return true;
}
void ChildProcessSession::sendFontRendering(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
std::string font, decodedFont;
if (tokens.count() < 2 ||
!getTokenString(tokens[1], "font", font))
{
sendTextFrame("error: cmd=renderfont kind=syntax");
return;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
URI::decode(font, decodedFont);
std::string response = "renderfont: " + Poco::cat(std::string(" "), tokens.begin() + 1, tokens.end()) + "\n";
std::vector<char> output;
output.resize(response.size());
std::memcpy(output.data(), response.data(), response.size());
Poco::Timestamp timestamp;
int width, height;
unsigned char *pixmap = _loKitDocument->pClass->renderFont(_loKitDocument, decodedFont.c_str(), &width, &height);
Log::trace("renderFont [" + font + "] rendered in " + std::to_string(timestamp.elapsed()/1000.) + "ms");
if (pixmap != nullptr)
{
if (!Util::encodeBufferToPNG(pixmap, width, height, output, LOK_TILEMODE_RGBA))
{
sendTextFrame("error: cmd=renderfont kind=failure");
delete[] pixmap;
return;
}
delete[] pixmap;
}
sendBinaryFrame(output.data(), output.size());
}
bool ChildProcessSession::getStatus(const char* /*buffer*/, int /*length*/)
{
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
const std::string status = "status: " + LOKitHelper::documentStatus(_loKitDocument);
StringTokenizer tokens(status, " ", StringTokenizer::TOK_IGNORE_EMPTY | StringTokenizer::TOK_TRIM);
if (!getTokenString(tokens[1], "type", _docType))
{
Log::error("failed to get document type from status [" + status + "].");
return false;
}
sendTextFrame(status);
return true;
}
bool ChildProcessSession::getCommandValues(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
std::string command;
if (tokens.count() != 2 || !getTokenString(tokens[1], "command", command))
{
sendTextFrame("error: cmd=commandvalues kind=syntax");
return false;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
sendTextFrame("commandvalues: " + std::string(_loKitDocument->pClass->getCommandValues(_loKitDocument, command.c_str())));
return true;
}
bool ChildProcessSession::getPartPageRectangles(const char* /*buffer*/, int /*length*/)
{
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
sendTextFrame("partpagerectangles: " + std::string(_loKitDocument->pClass->getPartPageRectangles(_loKitDocument)));
return true;
}
void ChildProcessSession::sendTile(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
int part, width, height, tilePosX, tilePosY, tileWidth, tileHeight;
if (tokens.count() < 8 ||
!getTokenInteger(tokens[1], "part", part) ||
!getTokenInteger(tokens[2], "width", width) ||
!getTokenInteger(tokens[3], "height", height) ||
!getTokenInteger(tokens[4], "tileposx", tilePosX) ||
!getTokenInteger(tokens[5], "tileposy", tilePosY) ||
!getTokenInteger(tokens[6], "tilewidth", tileWidth) ||
!getTokenInteger(tokens[7], "tileheight", tileHeight))
{
sendTextFrame("error: cmd=tile kind=syntax");
return;
}
if (part < 0 ||
width <= 0 ||
height <= 0 ||
tilePosX < 0 ||
tilePosY < 0 ||
tileWidth <= 0 ||
tileHeight <= 0)
{
sendTextFrame("error: cmd=tile kind=invalid");
return;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
const std::string response = "tile: " + Poco::cat(std::string(" "), tokens.begin() + 1, tokens.end()) + "\n";
std::vector<char> output;
output.reserve(response.size() + (4 * width * height));
output.resize(response.size());
std::memcpy(output.data(), response.data(), response.size());
std::vector<unsigned char> pixmap;
pixmap.resize(4 * width * height);
if (_docType != "text" && part != _loKitDocument->pClass->getPart(_loKitDocument))
{
_loKitDocument->pClass->setPart(_loKitDocument, part);
}
Poco::Timestamp timestamp;
_loKitDocument->pClass->paintTile(_loKitDocument, pixmap.data(), width, height, tilePosX, tilePosY, tileWidth, tileHeight);
Log::trace() << "paintTile at [" << tilePosX << ", " << tilePosY
<< "] rendered in " << (timestamp.elapsed()/1000.) << " ms" << Log::end;
LibreOfficeKitTileMode mode = static_cast<LibreOfficeKitTileMode>(_loKitDocument->pClass->getTileMode(_loKitDocument));
if (!Util::encodeBufferToPNG(pixmap.data(), width, height, output, mode))
{
sendTextFrame("error: cmd=tile kind=failure");
return;
}
sendBinaryFrame(output.data(), output.size());
}
void ChildProcessSession::sendCombinedTiles(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
int part, pixelWidth, pixelHeight, tileWidth, tileHeight;
std::string tilePositionsX, tilePositionsY;
std::string reqTimestamp;
if (tokens.count() < 8 ||
!getTokenInteger(tokens[1], "part", part) ||
!getTokenInteger(tokens[2], "width", pixelWidth) ||
!getTokenInteger(tokens[3], "height", pixelHeight) ||
!getTokenString (tokens[4], "tileposx", tilePositionsX) ||
!getTokenString (tokens[5], "tileposy", tilePositionsY) ||
!getTokenInteger(tokens[6], "tilewidth", tileWidth) ||
!getTokenInteger(tokens[7], "tileheight", tileHeight))
{
sendTextFrame("error: cmd=tilecombine kind=syntax");
return;
}
if (part < 0 || pixelWidth <= 0 || pixelHeight <= 0
|| tileWidth <= 0 || tileHeight <= 0
|| tilePositionsX.empty() || tilePositionsY.empty())
{
sendTextFrame("error: cmd=tilecombine kind=invalid");
return;
}
if (tokens.count() > 8)
getTokenString(tokens[8], "timestamp", reqTimestamp);
Util::Rectangle renderArea;
StringTokenizer positionXtokens(tilePositionsX, ",", StringTokenizer::TOK_IGNORE_EMPTY | StringTokenizer::TOK_TRIM);
StringTokenizer positionYtokens(tilePositionsY, ",", StringTokenizer::TOK_IGNORE_EMPTY | StringTokenizer::TOK_TRIM);
size_t numberOfPositions = positionYtokens.count();
// check that number of positions for X and Y is the same
if (numberOfPositions != positionYtokens.count())
{
sendTextFrame("error: cmd=tilecombine kind=invalid");
return;
}
std::vector<Util::Rectangle> tiles;
tiles.reserve(numberOfPositions);
for (size_t i = 0; i < numberOfPositions; i++)
{
int x, y;
if (!stringToInteger(positionXtokens[i], x))
{
sendTextFrame("error: cmd=tilecombine kind=syntax");
return;
}
if (!stringToInteger(positionYtokens[i], y))
{
sendTextFrame("error: cmd=tilecombine kind=syntax");
return;
}
Util::Rectangle rectangle(x, y, tileWidth, tileHeight);
if (tiles.empty())
{
renderArea = rectangle;
}
else
{
renderArea.extend(rectangle);
}
tiles.push_back(rectangle);
}
if (_docType != "text" && part != _loKitDocument->pClass->getPart(_loKitDocument))
{
_loKitDocument->pClass->setPart(_loKitDocument, part);
}
LibreOfficeKitTileMode mode = static_cast<LibreOfficeKitTileMode>(_loKitDocument->pClass->getTileMode(_loKitDocument));
int tilesByX = renderArea.getWidth() / tileWidth;
int tilesByY = renderArea.getHeight() / tileHeight;
int pixmapWidth = tilesByX * pixelWidth;
int pixmapHeight = tilesByY * pixelHeight;
const size_t pixmapSize = 4 * pixmapWidth * pixmapHeight;
std::vector<unsigned char> pixmap(pixmapSize, 0);
Poco::Timestamp timestamp;
_loKitDocument->pClass->paintTile(_loKitDocument, pixmap.data(), pixmapWidth, pixmapHeight,
renderArea.getLeft(), renderArea.getTop(),
renderArea.getWidth(), renderArea.getHeight());
Log::debug() << "paintTile (Multiple) called, tile at [" << renderArea.getLeft() << ", " << renderArea.getTop() << "]"
<< " (" << renderArea.getWidth() << ", " << renderArea.getHeight() << ") rendered in "
<< double(timestamp.elapsed())/1000 << "ms" << Log::end;
for (Util::Rectangle& tileRect : tiles)
{
std::string response = "tile: part=" + std::to_string(part) +
" width=" + std::to_string(pixelWidth) +
" height=" + std::to_string(pixelHeight) +
" tileposx=" + std::to_string(tileRect.getLeft()) +
" tileposy=" + std::to_string(tileRect.getTop()) +
" tilewidth=" + std::to_string(tileWidth) +
" tileheight=" + std::to_string(tileHeight);
if (reqTimestamp != "")
response += " timestamp=" + reqTimestamp;
response += "\n";
std::vector<char> output;
output.reserve(pixelWidth * pixelHeight * 4 + response.size());
output.resize(response.size());
std::copy(response.begin(), response.end(), output.begin());
int positionX = (tileRect.getLeft() - renderArea.getLeft()) / tileWidth;
int positionY = (tileRect.getTop() - renderArea.getTop()) / tileHeight;
if (!Util::encodeSubBufferToPNG(pixmap.data(), positionX * pixelWidth, positionY * pixelHeight, pixelWidth, pixelHeight, pixmapWidth, pixmapHeight, output, mode))
{
sendTextFrame("error: cmd=tile kind=failure");
return;
}
sendBinaryFrame(output.data(), output.size());
}
}
bool ChildProcessSession::clientZoom(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
int tilePixelWidth, tilePixelHeight, tileTwipWidth, tileTwipHeight;
if (tokens.count() != 5 ||
!getTokenInteger(tokens[1], "tilepixelwidth", tilePixelWidth) ||
!getTokenInteger(tokens[2], "tilepixelheight", tilePixelHeight) ||
!getTokenInteger(tokens[3], "tiletwipwidth", tileTwipWidth) ||
!getTokenInteger(tokens[4], "tiletwipheight", tileTwipHeight))
{
sendTextFrame("error: cmd=clientzoom kind=syntax");
return false;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
_loKitDocument->pClass->setClientZoom(_loKitDocument, tilePixelWidth, tilePixelHeight, tileTwipWidth, tileTwipHeight);
return true;
}
bool ChildProcessSession::clientVisibleArea(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
int x;
int y;
int width;
int height;
if (tokens.count() != 5 ||
!getTokenInteger(tokens[1], "x", x) ||
!getTokenInteger(tokens[2], "y", y) ||
!getTokenInteger(tokens[3], "width", width) ||
!getTokenInteger(tokens[4], "height", height))
{
sendTextFrame("error: cmd=clientvisiblearea kind=syntax");
return false;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
_loKitDocument->pClass->setClientVisibleArea(_loKitDocument, x, y, width, height);
return true;
}
bool ChildProcessSession::downloadAs(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
std::string name, id, format, filterOptions;
if (tokens.count() < 5 ||
!getTokenString(tokens[1], "name", name) ||
!getTokenString(tokens[2], "id", id))
{
sendTextFrame("error: cmd=downloadas kind=syntax");
return false;
}
getTokenString(tokens[3], "format", format);
if (getTokenString(tokens[4], "options", filterOptions))
{
if (tokens.count() > 5)
{
filterOptions += Poco::cat(std::string(" "), tokens.begin() + 5, tokens.end());
}
}
const auto tmpDir = Util::createRandomDir(JailedDocumentRoot);
const auto url = JailedDocumentRoot + tmpDir + "/" + name;
std::unique_lock<std::recursive_mutex> lock(Mutex);
//TODO: Cleanup the file after downloading.
_loKitDocument->pClass->saveAs(_loKitDocument, url.c_str(),
format.size() == 0 ? nullptr :format.c_str(),
filterOptions.size() == 0 ? nullptr : filterOptions.c_str());
sendTextFrame("downloadas: jail=" + _jailId + " dir=" + tmpDir + " name=" + name +
" port=" + std::to_string(ClientPortNumber) + " id=" + id);
return true;
}
bool ChildProcessSession::getChildId()
{
sendTextFrame("getchildid: id=" + _jailId);
return true;
}
bool ChildProcessSession::getTextSelection(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
std::string mimeType;
if (tokens.count() != 2 ||
!getTokenString(tokens[1], "mimetype", mimeType))
{
sendTextFrame("error: cmd=gettextselection kind=syntax");
return false;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
char *textSelection = _loKitDocument->pClass->getTextSelection(_loKitDocument, mimeType.c_str(), nullptr);
sendTextFrame("textselectioncontent: " + std::string(textSelection));
return true;
}
bool ChildProcessSession::paste(const char* buffer, int length, StringTokenizer& tokens)
{
std::string mimeType;
if (tokens.count() < 2 || !getTokenString(tokens[1], "mimetype", mimeType))
{
sendTextFrame("error: cmd=paste kind=syntax");
return false;
}
const std::string firstLine = getFirstLine(buffer, length);
const char* data = buffer + firstLine.size() + 1;
size_t size = length - firstLine.size() - 1;
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
_loKitDocument->pClass->paste(_loKitDocument, mimeType.c_str(), data, size);
return true;
}
bool ChildProcessSession::insertFile(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
std::string name, type;
if (tokens.count() != 3 ||
!getTokenString(tokens[1], "name", name) ||
!getTokenString(tokens[2], "type", type))
{
sendTextFrame("error: cmd=insertfile kind=syntax");
return false;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (type == "graphic")
{
std::string fileName = "file://" + JailedDocumentRoot + "insertfile/" + name;
std::string command = ".uno:InsertGraphic";
std::string arguments = "{"
"\"FileName\":{"
"\"type\":\"string\","
"\"value\":\"" + fileName + "\""
"}}";
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
_loKitDocument->pClass->postUnoCommand(_loKitDocument, command.c_str(), arguments.c_str(), false);
}
return true;
}
bool ChildProcessSession::keyEvent(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
int type, charcode, keycode;
if (tokens.count() != 4 ||
!getTokenKeyword(tokens[1], "type",
{{"input", LOK_KEYEVENT_KEYINPUT}, {"up", LOK_KEYEVENT_KEYUP}},
type) ||
!getTokenInteger(tokens[2], "char", charcode) ||
!getTokenInteger(tokens[3], "key", keycode))
{
sendTextFrame("error: cmd=key kind=syntax");
return false;
}
// Don't close LO window!
constexpr auto KEY_CTRL = 0x2000;
constexpr auto KEY_W = 0x0216;
if (keycode == (KEY_CTRL | KEY_W))
return true;
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
_loKitDocument->pClass->postKeyEvent(_loKitDocument, type, charcode, keycode);
return true;
}
bool ChildProcessSession::mouseEvent(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
int type, x, y, count;
bool success = true;
// default values for compatibility reasons with older loleaflets
int buttons = 1; // left button
int modifier = 0;
if (tokens.count() < 5 ||
!getTokenKeyword(tokens[1], "type",
{{"buttondown", LOK_MOUSEEVENT_MOUSEBUTTONDOWN},
{"buttonup", LOK_MOUSEEVENT_MOUSEBUTTONUP},
{"move", LOK_MOUSEEVENT_MOUSEMOVE}},
type) ||
!getTokenInteger(tokens[2], "x", x) ||
!getTokenInteger(tokens[3], "y", y) ||
!getTokenInteger(tokens[4], "count", count))
{
success = false;
}
// compatibility with older loleaflets
if (success && tokens.count() > 5 && !getTokenInteger(tokens[5], "buttons", buttons))
success = false;
// compatibility with older loleaflets
if (success && tokens.count() > 6 && !getTokenInteger(tokens[6], "modifier", modifier))
success = false;
if (!success)
{
sendTextFrame("error: cmd=mouse kind=syntax");
return false;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
_loKitDocument->pClass->postMouseEvent(_loKitDocument, type, x, y, count, buttons, modifier);
return true;
}
bool ChildProcessSession::unoCommand(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
if (tokens.count() == 1)
{
sendTextFrame("error: cmd=uno kind=syntax");
return false;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
// we need to get LOK_CALLBACK_UNO_COMMAND_RESULT callback when saving
const bool bNotify = (tokens[1] == ".uno:Save");
if (tokens.count() == 2)
{
_loKitDocument->pClass->postUnoCommand(_loKitDocument, tokens[1].c_str(), nullptr, bNotify);
}
else
{
_loKitDocument->pClass->postUnoCommand(_loKitDocument, tokens[1].c_str(),
Poco::cat(std::string(" "), tokens.begin() + 2, tokens.end()).c_str(),
bNotify);
}
return true;
}
bool ChildProcessSession::selectText(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
int type, x, y;
if (tokens.count() != 4 ||
!getTokenKeyword(tokens[1], "type",
{{"start", LOK_SETTEXTSELECTION_START},
{"end", LOK_SETTEXTSELECTION_END},
{"reset", LOK_SETTEXTSELECTION_RESET}},
type) ||
!getTokenInteger(tokens[2], "x", x) ||
!getTokenInteger(tokens[3], "y", y))
{
sendTextFrame("error: cmd=selecttext kind=syntax");
return false;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
_loKitDocument->pClass->setTextSelection(_loKitDocument, type, x, y);
return true;
}
bool ChildProcessSession::selectGraphic(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
int type, x, y;
if (tokens.count() != 4 ||
!getTokenKeyword(tokens[1], "type",
{{"start", LOK_SETGRAPHICSELECTION_START},
{"end", LOK_SETGRAPHICSELECTION_END}},
type) ||
!getTokenInteger(tokens[2], "x", x) ||
!getTokenInteger(tokens[3], "y", y))
{
sendTextFrame("error: cmd=selectgraphic kind=syntax");
return false;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
_loKitDocument->pClass->setGraphicSelection(_loKitDocument, type, x, y);
return true;
}
bool ChildProcessSession::resetSelection(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
if (tokens.count() != 1)
{
sendTextFrame("error: cmd=resetselection kind=syntax");
return false;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
_loKitDocument->pClass->resetSelection(_loKitDocument);
return true;
}
bool ChildProcessSession::saveAs(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
std::string url, format, filterOptions;
if (tokens.count() < 4 ||
!getTokenString(tokens[1], "url", url))
{
sendTextFrame("error: cmd=saveas kind=syntax");
return false;
}
getTokenString(tokens[2], "format", format);
if (getTokenString(tokens[3], "options", filterOptions))
{
if (tokens.count() > 4)
{
filterOptions += Poco::cat(std::string(" "), tokens.begin() + 4, tokens.end());
}
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
bool success = _loKitDocument->pClass->saveAs(_loKitDocument, url.c_str(),
format.size() == 0 ? nullptr :format.c_str(),
filterOptions.size() == 0 ? nullptr : filterOptions.c_str());
sendTextFrame("saveas: url=" + url);
std::string successStr = success ? "true" : "false";
sendTextFrame("unocommandresult: {"
"\"commandName\":\"saveas\","
"\"success\":\"" + successStr + "\"}");
return true;
}
bool ChildProcessSession::setClientPart(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
if (tokens.count() < 2 ||
!getTokenInteger(tokens[1], "part", _clientPart))
{
return false;
}
return true;
}
bool ChildProcessSession::setPage(const char* /*buffer*/, int /*length*/, StringTokenizer& tokens)
{
int page;
if (tokens.count() < 2 ||
!getTokenInteger(tokens[1], "page", page))
{
sendTextFrame("error: cmd=setpage kind=invalid");
return false;
}
std::unique_lock<std::recursive_mutex> lock(Mutex);
if (_multiView)
_loKitDocument->pClass->setView(_loKitDocument, _viewId);
_loKitDocument->pClass->setPart(_loKitDocument, page);
return true;
}
void ChildProcessSession::loKitCallback(const int nType, const char *pPayload)
{
auto pNotif = new CallbackNotification(nType, pPayload ? pPayload : "(nil)");
_callbackQueue.enqueueNotification(pNotif);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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