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-rw-r--r--binaryurp/source/reader.cxx479
1 files changed, 479 insertions, 0 deletions
diff --git a/binaryurp/source/reader.cxx b/binaryurp/source/reader.cxx
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+/* -*- 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 .
+ */
+
+#include <sal/config.h>
+
+#include <cassert>
+#include <exception>
+#include <memory>
+#include <vector>
+
+#include <com/sun/star/connection/XConnection.hpp>
+#include <com/sun/star/io/IOException.hpp>
+#include <com/sun/star/uno/Any.hxx>
+#include <com/sun/star/uno/Exception.hpp>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/uno/RuntimeException.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/uno/Type.hxx>
+#include <com/sun/star/uno/XCurrentContext.hpp>
+#include <com/sun/star/uno/XInterface.hpp>
+#include <cppu/unotype.hxx>
+#include <rtl/byteseq.h>
+#include <rtl/ustring.hxx>
+#include <sal/log.hxx>
+#include <sal/types.h>
+#include <typelib/typeclass.h>
+#include <typelib/typedescription.h>
+#include <typelib/typedescription.hxx>
+
+#include "binaryany.hxx"
+#include "bridge.hxx"
+#include "incomingreply.hxx"
+#include "incomingrequest.hxx"
+#include "outgoingrequest.hxx"
+#include "reader.hxx"
+#include "specialfunctionids.hxx"
+#include "unmarshal.hxx"
+
+namespace binaryurp {
+
+namespace {
+
+css::uno::Sequence< sal_Int8 > read(
+ css::uno::Reference< css::connection::XConnection > const & connection,
+ sal_uInt32 size, bool eofOk)
+{
+ assert(connection.is());
+ if (size > SAL_MAX_INT32) {
+ throw css::uno::RuntimeException(
+ "binaryurp::Reader: block size too large");
+ }
+ css::uno::Sequence< sal_Int8 > buf;
+ sal_Int32 n = connection->read(buf, static_cast< sal_Int32 >(size));
+ if (n == 0 && eofOk) {
+ return css::uno::Sequence< sal_Int8 >();
+ }
+ if (n != static_cast< sal_Int32 >(size)) {
+ throw css::io::IOException(
+ "binaryurp::Reader: premature end of input");
+ }
+ assert(buf.getLength() == static_cast< sal_Int32 >(size));
+ return buf;
+}
+
+extern "C" void request(void * pThreadSpecificData) {
+ assert(pThreadSpecificData != nullptr);
+ std::unique_ptr< IncomingRequest >(
+ static_cast< IncomingRequest * >(pThreadSpecificData))->
+ execute();
+}
+
+}
+
+Reader::Reader(rtl::Reference< Bridge > const & bridge):
+ Thread("binaryurpReader"), bridge_(bridge)
+{
+ assert(bridge.is());
+}
+
+Reader::~Reader() {}
+
+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(
+ "binaryurp::Reader: block with zero message count received");
+ }
+ 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(
+ "URP: request message with MUSTREPLY != SYNCHRONOUS"
+ " received");
+ }
+ } 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(
+ "URP: request message with NEWTYPE received when last"
+ " interface type has not yet been set");
+ }
+ type = lastType_;
+ }
+ OUString oid;
+ if (newOid) {
+ oid = unmarshal.readOid();
+ if (oid.isEmpty()) {
+ throw css::io::IOException(
+ "binaryurp::Unmarshal: empty OID");
+ }
+ lastOid_ = oid;
+ } else {
+ if (lastOid_.isEmpty()) {
+ throw css::uno::RuntimeException(
+ "URP: request message with NEWOID received when last OID has"
+ " not yet been set");
+ }
+ oid = lastOid_;
+ }
+ rtl::ByteSequence tid(getTid(unmarshal, newTid));
+ lastTid_ = tid;
+ type.makeComplete();
+ if (type.get()->eTypeClass != typelib_TypeClass_INTERFACE) {
+ throw css::uno::RuntimeException(
+ "URP: request message with non-interface interface type received");
+ }
+ typelib_InterfaceTypeDescription * itd =
+ reinterpret_cast< typelib_InterfaceTypeDescription * >(type.get());
+ if (functionId >= itd->nMapFunctionIndexToMemberIndex) {
+ throw css::uno::RuntimeException(
+ "URP: request message with unknown function ID received");
+ }
+ 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(
+ "URP: request message with UrpProtocolProperties OID and"
+ " unknown function ID received");
+ }
+ } 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(
+ "URP: request message with unknown function ID 1 received");
+ case SPECIAL_FUNCTION_ID_RELEASE:
+ break;
+ default:
+ obj = bridge_->findStub(oid, type);
+ if (!obj.is()) {
+ throw css::uno::RuntimeException(
+ "URP: request message with unknown OID received");
+ }
+ break;
+ }
+ std::unique_ptr< IncomingRequest > req(
+ new IncomingRequest(
+ bridge_, tid, oid, obj, type, functionId, synchronous, memberTd,
+ bSetter, inArgs, ccMode, cc));
+ if (synchronous) {
+ bridge_->incrementActiveCalls();
+ }
+ uno_threadpool_putJob(
+ bridge_->getThreadPool(), tid.getHandle(), req.get(), &request,
+ !synchronous);
+ 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(
+ "URP: reply message with bad exception type received");
+ }
+ }
+ } 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, outArgs));
+ uno_threadpool_putJob(
+ bridge_->getThreadPool(), tid.getHandle(), resp.get(), nullptr,
+ false);
+ 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(
+ "URP: message with NEWTID received when last TID has not yet been"
+ " set");
+ }
+ return lastTid_;
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 23:28:17 +0000