Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 480 insertions, 0 deletions

diff --git a/binaryurp/source/reader.cxx b/binaryurp/source/reader.cxx
new file mode 100644
index 000000000..cbd18f1d8
--- /dev/null
+++ b/binaryurp/source/reader.cxx
@@ -0,0 +1,480 @@
+/* -*- 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 <o3tl/safeint.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 (o3tl::make_unsigned(n) != size) {
+        throw css::io::IOException(
+            "binaryurp::Reader: premature end of input");
+    }
+    assert(o3tl::make_unsigned(buf.getLength()) == 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, std::move(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, std::move(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: */