/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * 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/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
void Reader::execute() { try {
bridge_->sendRequestChangeRequest();
css::uno::Reference< css::connection::XConnection > con(
bridge_->getConnection()); for (;;) {
css::uno::Sequence< sal_Int8 > s(read(con, 8, true)); if (!s.hasElements()) { break;
}
Unmarshal header(bridge_, state_, s);
sal_uInt32 size = header.read32();
sal_uInt32 count = header.read32();
header.done(); if (count == 0) { throw css::io::IOException(
u"binaryurp::Reader: block with zero message count received"_ustr);
}
Unmarshal block(bridge_, state_, read(con, size, false)); for (sal_uInt32 i = 0; i != count; ++i) {
readMessage(block);
}
block.done();
}
} catch (const css::uno::Exception & e) {
SAL_WARN("binaryurp", "caught UNO exception '" << e << '\'');
} catch (const std::exception & e) {
SAL_WARN("binaryurp", "caught C++ exception '" << e.what() << '\'');
}
bridge_->terminate(false);
bridge_.clear();
}
void Reader::readMessage(Unmarshal & unmarshal) {
sal_uInt8 flags1 = unmarshal.read8(); bool newType; bool newOid; bool newTid; bool forceSynchronous;
sal_uInt16 functionId; if ((flags1 & 0x80) != 0) { // bit 7: LONGHEADER if ((flags1 & 0x40) == 0) { // bit 6: REQUEST
readReplyMessage(unmarshal, flags1); return;
}
newType = (flags1 & 0x20) != 0; // bit 5: NEWTYPE
newOid = (flags1 & 0x10) != 0; // bit 4: NEWOID
newTid = (flags1 & 0x08) != 0; // bit 3: NEWTID if ((flags1 & 0x01) != 0) { // bit 0: MOREFLAGSS
sal_uInt8 flags2 = unmarshal.read8();
forceSynchronous = (flags2 & 0x80) != 0; // bit 7: MUSTREPLY if (((flags2 & 0x40) != 0) != forceSynchronous) { // bit 6: SYNCHRONOUS throw css::uno::RuntimeException(
u"URP: request message with MUSTREPLY != SYNCHRONOUS" " received"_ustr);
}
} else {
forceSynchronous = false;
}
functionId = ((flags1 & 0x04) != 0) // bit 2: FUNCTIONID16
? unmarshal.read16() : unmarshal.read8();
} else {
newType = false;
newOid = false;
newTid = false;
forceSynchronous = false;
functionId = ((flags1 & 0x40) != 0) // bit 6: FUNCTIONID14
? ((flags1 & 0x3F) << 8) | unmarshal.read8() : flags1 & 0x3F;
}
css::uno::TypeDescription type; if (newType) {
type = unmarshal.readType();
lastType_ = type;
} else { if (!lastType_.is()) { throw css::uno::RuntimeException(
u"URP: request message with NEWTYPE received when last" " interface type has not yet been set"_ustr);
}
type = lastType_;
}
OUString oid; if (newOid) {
oid = unmarshal.readOid(); if (oid.isEmpty()) { throw css::io::IOException(
u"binaryurp::Unmarshal: empty OID"_ustr);
}
lastOid_ = oid;
} else { if (lastOid_.isEmpty()) { throw css::uno::RuntimeException(
u"URP: request message with NEWOID received when last OID has" " not yet been set"_ustr);
}
oid = lastOid_;
}
rtl::ByteSequence tid(getTid(unmarshal, newTid));
lastTid_ = tid;
type.makeComplete(); if (type.get()->eTypeClass != typelib_TypeClass_INTERFACE) { throw css::uno::RuntimeException(
u"URP: request message with non-interface interface type received"_ustr);
}
typelib_InterfaceTypeDescription * itd = reinterpret_cast< typelib_InterfaceTypeDescription * >(type.get()); if (functionId >= itd->nMapFunctionIndexToMemberIndex) { throw css::uno::RuntimeException(
u"URP: request message with unknown function ID received"_ustr);
}
sal_Int32 memberId = itd->pMapFunctionIndexToMemberIndex[functionId];
css::uno::TypeDescription memberTd(itd->ppAllMembers[memberId]);
memberTd.makeComplete();
assert(memberTd.is()); bool protProps = bridge_->isProtocolPropertiesRequest(oid, type); bool ccMode = !protProps && functionId != SPECIAL_FUNCTION_ID_RELEASE &&
bridge_->isCurrentContextMode();
css::uno::UnoInterfaceReference cc; if (ccMode) {
css::uno::TypeDescription t(
cppu::UnoType<css::uno::XCurrentContext>::get());
cc.set(
*static_cast< uno_Interface ** >(
unmarshal.readValue(t).getValue(t)));
} bool oneWay =
memberTd.get()->eTypeClass == typelib_TypeClass_INTERFACE_METHOD &&
(reinterpret_cast< typelib_InterfaceMethodTypeDescription * >(
memberTd.get())->
bOneWay);
SAL_INFO_IF(
!oneWay && forceSynchronous, "binaryurp",
("superfluous MUSTREPLY/SYNCHRONOUS ignored in request message with" " non-oneway function ID")); bool synchronous = !oneWay || forceSynchronous; bool bSetter = false;
std::vector< BinaryAny > inArgs; switch (memberTd.get()->eTypeClass) { case typelib_TypeClass_INTERFACE_ATTRIBUTE:
bSetter = itd->pMapMemberIndexToFunctionIndex[memberId] != functionId; // pMapMemberIndexToFunctionIndex contains function index of // attribute getter if (bSetter) {
inArgs.push_back(
unmarshal.readValue(
css::uno::TypeDescription( reinterpret_cast<
typelib_InterfaceAttributeTypeDescription * >(
memberTd.get())->
pAttributeTypeRef)));
} break; case typelib_TypeClass_INTERFACE_METHOD:
{
typelib_InterfaceMethodTypeDescription * mtd = reinterpret_cast< typelib_InterfaceMethodTypeDescription * >(
memberTd.get()); for (sal_Int32 i = 0; i != mtd->nParams; ++i) { if (mtd->pParams[i].bIn) {
inArgs.push_back(
unmarshal.readValue(
css::uno::TypeDescription(
mtd->pParams[i].pTypeRef)));
}
} break;
} default:
assert(false); // this cannot happen break;
}
bridge_->incrementCalls(
!protProps && functionId != SPECIAL_FUNCTION_ID_RELEASE); if (protProps) { switch (functionId) { case SPECIAL_FUNCTION_ID_REQUEST_CHANGE:
bridge_->handleRequestChangeRequest(tid, inArgs); break; case SPECIAL_FUNCTION_ID_COMMIT_CHANGE:
bridge_->handleCommitChangeRequest(tid, inArgs); break; default: throw css::uno::RuntimeException(
u"URP: request message with UrpProtocolProperties OID and" " unknown function ID received"_ustr);
}
} else {
css::uno::UnoInterfaceReference obj; switch (functionId) { case SPECIAL_FUNCTION_ID_QUERY_INTERFACE:
obj = bridge_->findStub(oid, type); if (!obj.is()) {
assert(
inArgs.size() == 1
&& inArgs[0].getType().equals(
css::uno::TypeDescription(
cppu::UnoType< css::uno::Type >::get()))); if (!(type.equals(
css::uno::TypeDescription(
cppu::UnoType<
css::uno::Reference<
css::uno::XInterface > >::get()))
&& (css::uno::TypeDescription(
*static_cast<
typelib_TypeDescriptionReference ** >(
inArgs[0].getValue(inArgs[0].getType()))).
equals(
css::uno::TypeDescription(
cppu::UnoType<
css::uno::Reference<
css::uno::XInterface > >::get())))))
{ throw css::uno::RuntimeException( "URP: queryInterface request message with unknown OID '"
+ oid + "' received");
}
} break; case SPECIAL_FUNCTION_ID_RESERVED: throw css::uno::RuntimeException(
u"URP: request message with unknown function ID 1 received"_ustr); case SPECIAL_FUNCTION_ID_RELEASE: break; default:
obj = bridge_->findStub(oid, type); if (!obj.is()) { throw css::uno::RuntimeException(
u"URP: request message with unknown OID received"_ustr);
} break;
}
std::unique_ptr< IncomingRequest > req( new IncomingRequest(
bridge_, tid, oid, std::move(obj), std::move(type), functionId, synchronous,
memberTd, bSetter, std::move(inArgs), ccMode, std::move(cc))); if (synchronous) {
bridge_->incrementActiveCalls();
}
uno_threadpool_putJob(
bridge_->getThreadPool(), tid.getHandle(), req.get(), &request,
!synchronous); // coverity[leaked_storage] - "request" destroys req when executed
req.release();
}
}
void Reader::readReplyMessage(Unmarshal & unmarshal, sal_uInt8 flags1) {
rtl::ByteSequence tid(getTid(unmarshal, (flags1 & 0x08) != 0)); // bit 3: NEWTID
lastTid_ = tid;
OutgoingRequest req(bridge_->lastOutgoingRequest(tid)); bool exc = (flags1 & 0x20) != 0; // bit 5: EXCEPTION
BinaryAny ret;
std::vector< BinaryAny > outArgs; if (exc) {
ret = unmarshal.readValue(
css::uno::TypeDescription(cppu::UnoType< css::uno::Any >::get())); if (!typelib_typedescription_isAssignableFrom(
(css::uno::TypeDescription(
cppu::UnoType< css::uno::RuntimeException >::get()).
get()),
ret.getType().get()))
{
sal_Int32 n = 0;
typelib_TypeDescriptionReference ** p = nullptr; switch (req.member.get()->eTypeClass) { case typelib_TypeClass_INTERFACE_ATTRIBUTE:
{
typelib_InterfaceAttributeTypeDescription * atd = reinterpret_cast<
typelib_InterfaceAttributeTypeDescription * >(
req.member.get());
n = req.setter ? atd->nSetExceptions : atd->nGetExceptions;
p = req.setter
? atd->ppSetExceptions : atd->ppGetExceptions; break;
} case typelib_TypeClass_INTERFACE_METHOD:
{
typelib_InterfaceMethodTypeDescription * mtd = reinterpret_cast<
typelib_InterfaceMethodTypeDescription * >(
req.member.get());
n = mtd->nExceptions;
p = mtd->ppExceptions; break;
} default:
assert(false); // this cannot happen break;
} bool bOk = false; for (sal_Int32 i = 0; i != n; ++i) { if (typelib_typedescriptionreference_isAssignableFrom(
p[i], reinterpret_cast< typelib_TypeDescriptionReference * >(
ret.getType().get())))
{
bOk = true; break;
}
} if (!bOk) { throw css::uno::RuntimeException(
u"URP: reply message with bad exception type received"_ustr);
}
}
} else { switch (req.member.get()->eTypeClass) { case typelib_TypeClass_INTERFACE_ATTRIBUTE: if (!req.setter) {
ret = unmarshal.readValue(
css::uno::TypeDescription( reinterpret_cast<
typelib_InterfaceAttributeTypeDescription * >(
req.member.get())->
pAttributeTypeRef));
} break; case typelib_TypeClass_INTERFACE_METHOD:
{
typelib_InterfaceMethodTypeDescription * mtd = reinterpret_cast<
typelib_InterfaceMethodTypeDescription * >(
req.member.get());
ret = unmarshal.readValue(
css::uno::TypeDescription(mtd->pReturnTypeRef)); for (sal_Int32 i = 0; i != mtd->nParams; ++i) { if (mtd->pParams[i].bOut) {
outArgs.push_back(
unmarshal.readValue(
css::uno::TypeDescription(
mtd->pParams[i].pTypeRef)));
}
} break;
} default:
assert(false); // this cannot happen break;
}
} switch (req.kind) { case OutgoingRequest::KIND_NORMAL:
{
std::unique_ptr< IncomingReply > resp( new IncomingReply(exc, ret, std::move(outArgs)));
uno_threadpool_putJob(
bridge_->getThreadPool(), tid.getHandle(), resp.get(), nullptr, false); // coverity[leaked_storage] - "Bridge::makeCall" destroys resp when received
resp.release(); break;
} case OutgoingRequest::KIND_REQUEST_CHANGE:
assert(outArgs.empty());
bridge_->handleRequestChangeReply(exc, ret); break; case OutgoingRequest::KIND_COMMIT_CHANGE:
assert(outArgs.empty());
bridge_->handleCommitChangeReply(exc, ret); break; default:
assert(false); // this cannot happen break;
}
}
rtl::ByteSequence Reader::getTid(Unmarshal & unmarshal, bool newTid) const { if (newTid) { return unmarshal.readTid();
} if (lastTid_.getLength() == 0) { throw css::uno::RuntimeException(
u"URP: message with NEWTID received when last TID has not yet been" " set"_ustr);
} return lastTid_;
}
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