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, 296 insertions, 0 deletions

diff --git a/tools/source/inet/inetstrm.cxx b/tools/source/inet/inetstrm.cxx
new file mode 100644
index 000000000..c68b232d9
--- /dev/null
+++ b/tools/source/inet/inetstrm.cxx
@@ -0,0 +1,296 @@
+/* -*- 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 <sal/types.h>
+#include <tools/inetmsg.hxx>
+#include <tools/inetstrm.hxx>
+
+int INetMIMEMessageStream::GetHeaderLine(char* pData, sal_uInt32 nSize)
+{
+    char* pWBuf = pData;
+
+    sal_uInt32 i, n;
+
+    if (maMsgBuffer.Tell() == 0)
+    {
+        // Insert formatted header into buffer.
+        n = pSourceMsg->GetHeaderCount();
+        for (i = 0; i < n; i++)
+        {
+            INetMessageHeader aHeader (pSourceMsg->GetHeaderField(i));
+            if (aHeader.GetValue().getLength())
+            {
+                // NYI: Folding long lines.
+                maMsgBuffer.WriteOString( aHeader.GetName() );
+                maMsgBuffer.WriteCharPtr( ": " );
+                maMsgBuffer.WriteOString( aHeader.GetValue() );
+                maMsgBuffer.WriteCharPtr( "\r\n" );
+            }
+        }
+
+        pMsgWrite = const_cast<char *>(static_cast<char const *>(maMsgBuffer.GetData()));
+        pMsgRead  = pMsgWrite + maMsgBuffer.Tell();
+    }
+
+    n = pMsgRead - pMsgWrite;
+    if (n > 0)
+    {
+        // Move to caller.
+        if (nSize < n) n = nSize;
+        for (i = 0; i < n; i++) *pWBuf++ = *pMsgWrite++;
+    }
+    else
+    {
+        // Reset buffer.
+        maMsgBuffer.Seek(STREAM_SEEK_TO_BEGIN);
+    }
+
+    return (pWBuf - pData);
+}
+
+int INetMIMEMessageStream::GetBodyLine(char* pData, sal_uInt32 nSize)
+{
+    char* pWBuf = pData;
+    char* pWEnd = pData + nSize;
+
+    if (pSourceMsg->GetDocumentLB())
+    {
+        if (pMsgStrm == nullptr)
+            pMsgStrm.reset(new SvStream (pSourceMsg->GetDocumentLB()));
+
+        sal_uInt32 nRead = pMsgStrm->ReadBytes(pWBuf, (pWEnd - pWBuf));
+        pWBuf += nRead;
+    }
+
+    return (pWBuf - pData);
+}
+
+int INetMIMEMessageStream::GetMsgLine(char* pData, sal_uInt32 nSize)
+{
+    // Check for header or body.
+    if (!bHeaderGenerated)
+    {
+        if (!done)
+        {
+            // Prepare special header fields.
+            if (pSourceMsg->GetParent())
+            {
+                OUString aPCT(pSourceMsg->GetParent()->GetContentType());
+                if (aPCT.startsWithIgnoreAsciiCase("message/rfc822"))
+                    pSourceMsg->SetMIMEVersion("1.0");
+                else
+                    pSourceMsg->SetMIMEVersion(OUString());
+            }
+            else
+            {
+                pSourceMsg->SetMIMEVersion("1.0");
+            }
+
+            // Check ContentType.
+            OUString aContentType(pSourceMsg->GetContentType());
+            if (!aContentType.isEmpty())
+            {
+                // Determine default Content-Type.
+                OUString aDefaultType = pSourceMsg->GetDefaultContentType();
+
+                if (aDefaultType.equalsIgnoreAsciiCase(aContentType))
+                {
+                    // No need to specify default.
+                    pSourceMsg->SetContentType(OUString());
+                }
+            }
+
+            // No need to specify default.
+            pSourceMsg->SetContentTransferEncoding(OUString());
+
+            // Mark we're done.
+            done = true;
+        }
+
+        // Generate the message header.
+        int nRead = GetHeaderLine(pData, nSize);
+        if (nRead <= 0)
+        {
+            // Reset state.
+            done = false;
+        }
+        return nRead;
+    }
+    else
+    {
+        // Generate the message body.
+        if (pSourceMsg->IsContainer())
+        {
+            // Encapsulated message body.
+            while (!done)
+            {
+                if (pChildStrm == nullptr)
+                {
+                    INetMIMEMessage *pChild = pSourceMsg->GetChild(nChildIndex);
+                    if (pChild)
+                    {
+                        // Increment child index.
+                        nChildIndex++;
+
+                        // Create child stream.
+                        pChildStrm.reset(new INetMIMEMessageStream(pChild, false));
+
+                        if (pSourceMsg->IsMultipart())
+                        {
+                            // Insert multipart delimiter.
+                            OString aDelim = "--" +
+                                pSourceMsg->GetMultipartBoundary() +
+                                "\r\n";
+
+                            memcpy(pData, aDelim.getStr(),
+                                aDelim.getLength());
+                            return aDelim.getLength();
+                        }
+                    }
+                    else
+                    {
+                        // No more parts. Mark we're done.
+                        done = true;
+                        nChildIndex = 0;
+
+                        if (pSourceMsg->IsMultipart())
+                        {
+                            // Insert close delimiter.
+                            OString aDelim = "--" +
+                                pSourceMsg->GetMultipartBoundary() +
+                                "--\r\n";
+
+                            memcpy(pData, aDelim.getStr(),
+                                aDelim.getLength());
+                            return aDelim.getLength();
+                        }
+                    }
+                }
+                else
+                {
+                    // Read current child stream.
+                    int nRead = pChildStrm->Read(pData, nSize);
+                    if (nRead > 0)
+                    {
+                        return nRead;
+                    }
+                    else
+                    {
+                        // Cleanup exhausted child stream.
+                        pChildStrm.reset();
+                    }
+                }
+            }
+            return 0;
+        }
+        else
+        {
+            // Single part message body.
+            if (pSourceMsg->GetDocumentLB() == nullptr)
+            {
+                // Empty message body.
+                return 0;
+            }
+
+            // No Encoding.
+            return GetBodyLine(pData, nSize);
+        }
+    }
+}
+
+namespace
+{
+
+const int BUFFER_SIZE = 2048;
+
+}
+
+INetMIMEMessageStream::INetMIMEMessageStream(
+    INetMIMEMessage *pMsg, bool headerGenerated):
+    pSourceMsg(pMsg),
+    bHeaderGenerated(headerGenerated),
+    mvBuffer(BUFFER_SIZE),
+    pMsgRead(nullptr),
+    pMsgWrite(nullptr),
+    done(false),
+    nChildIndex(0)
+{
+    assert(pMsg != nullptr);
+    maMsgBuffer.SetStreamCharSet(RTL_TEXTENCODING_ASCII_US);
+    pRead = pWrite = mvBuffer.data();
+}
+
+INetMIMEMessageStream::~INetMIMEMessageStream()
+{
+    pChildStrm.reset();
+}
+
+int INetMIMEMessageStream::Read(char* pData, sal_uInt32 nSize)
+{
+    char* pWBuf = pData;
+    char* pWEnd = pData + nSize;
+
+    while (pWBuf < pWEnd)
+    {
+        // Caller's buffer not yet filled.
+        sal_uInt32 n = pRead - pWrite;
+        if (n > 0)
+        {
+            // Bytes still in buffer.
+            sal_uInt32 m = pWEnd - pWBuf;
+            if (m < n) n = m;
+            for (sal_uInt32 i = 0; i < n; i++) *pWBuf++ = *pWrite++;
+        }
+        else
+        {
+            // Buffer empty. Reset to <Begin-of-Buffer>.
+            pRead = pWrite = mvBuffer.data();
+
+            // Read next message line.
+            int nRead = GetMsgLine(mvBuffer.data(), mvBuffer.size());
+            if (nRead > 0)
+            {
+                // Set read pointer.
+                pRead = mvBuffer.data() + nRead;
+            }
+            else
+            {
+                if (!bHeaderGenerated)
+                {
+                    // Header generated. Insert empty line.
+                    bHeaderGenerated = true;
+                    *pRead++ = '\r';
+                    *pRead++ = '\n';
+                }
+                else
+                {
+                    // Body generated.
+                    return (pWBuf - pData);
+                }
+            }
+        }
+    }
+    return (pWBuf - pData);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */