зеркало из https://github.com/mozilla/gecko-dev.git
Fix for #89235. Rewrote main portion of ImportMailbox() to use global util function EscapeFromSpaceLine() to handle "From " lines. r=ducarroz, sr=bienvenu.
This commit is contained in:
cavin%netscape.com
Родитель
49c1fea165
Коммит
ace4ee4d27
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@ -57,6 +57,7 @@ CPP_OBJS=\
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LLIBS=\
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$(DIST)\lib\xpcom.lib \
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$(DIST)\lib\msgbsutl.lib \
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$(LIBNSPR) \
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$(NULL)
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@ -38,6 +38,7 @@
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#include "nsOE5File.h"
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#include "nsCRT.h"
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#include "OEDebugLog.h"
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#include "nsMsgUtils.h"
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#define kIndexGrowBy 100
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@ -276,165 +277,156 @@ nsresult nsOE5File::ImportMailbox( PRUint32 *pBytesDone, PRBool *pAbort, nsStrin
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text length in block
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pointer to next block. (0 if end)
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Each message is made up of a linked list of block data.
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So what we do for each message is:
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Read the first block
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Write out the From message separator if the message doesn't already
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start with one.
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Write out all subsequent blocks of text keeping track of the last
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2 bytes written of the message.
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if the last 2 bytes aren't and end of line then write one out before
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proceeding to the next message.
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1. Read the first block data.
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2. Write out the From message separator if the message doesn't already
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start with one.
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3. If the block of data doesn't end with CRLF then a line is broken into two blocks,
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so save the incomplete line for later process when we read the next block. Then
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write out the block excluding the partial line at the end of the block (if exists).
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4. If there's next block of data then read next data block. Otherwise we're done.
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If we found a partial line in step #3 then find the rest of the line from the
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current block and write out this line separately.
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5. Reset some of the control variables and repeat step #3.
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*/
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PRUint32 didBytes = 0;
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char last2[2] = {0, 0};
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PRUint32 next;
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PRUint32 next, size;
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char *pStart, *pEnd, *partialLineStart;
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nsCAutoString partialLine, tempLine;
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rv = NS_OK;
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for (PRUint32 i = 0; (i < indexSize) && !(*pAbort); i++) {
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if (pIndex[i]) {
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if (ReadBytes( inFile, block, pIndex[i], 16) &&
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(block[0] == pIndex[i]) &&
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(block[2] < kMailboxBufferSize) &&
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(ReadBytes( inFile, pBuffer, kDontSeek, block[2]))) {
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// write out the from separator.
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if (!IsFromLine( pBuffer, block[2])) {
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rv = pDestination->Write( m_pFromLineSep, sepLen, &written);
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// FIXME: Do I need to check the return value of written???
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if (NS_FAILED( rv))
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break;
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last2[0] = 13;
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last2[1] = 10;
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}
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else {
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last2[0] = 0;
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last2[1] = 0;
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}
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rv = WriteMessageBuffer( pDestination, pBuffer, block[2], last2);
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didBytes += block[2];
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for (PRUint32 i = 0; (i < indexSize) && !(*pAbort); i++)
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{
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if (! pIndex[i])
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continue;
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if (ReadBytes( inFile, block, pIndex[i], 16) && (block[0] == pIndex[i]) &&
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(block[2] < kMailboxBufferSize) && (ReadBytes( inFile, pBuffer, kDontSeek, block[2])))
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{
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// write out the from separator.
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if (!IsFromLine( pBuffer, block[2]))
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{
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rv = pDestination->Write( m_pFromLineSep, sepLen, &written);
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// FIXME: Do I need to check the return value of written???
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if (NS_FAILED( rv))
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break;
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next = block[3];
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while (next && !(*pAbort)) {
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if (ReadBytes( inFile, block, next, 16) &&
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(block[0] == next) &&
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(block[2] < kMailboxBufferSize) &&
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(ReadBytes( inFile, pBuffer, kDontSeek, block[2]))) {
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if (block[2])
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rv = WriteMessageBuffer( pDestination, pBuffer, block[2], last2);
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didBytes += block[2];
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if (NS_FAILED( rv))
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break;
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next = block[3];
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}
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else {
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IMPORT_LOG2( "Error reading message from %S at 0x%lx\n", name.get(), pIndex[i]);
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pDestination->Write( "\x0D\x0A", 2, &written);
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next = 0;
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last2[0] = 13;
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last2[1] = 10;
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}
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}
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if (NS_FAILED( rv) || (*pAbort))
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break;
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if ((last2[0] != 13) || (last2[1] != 10)) {
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pDestination->Write( "\x0D\x0A", 2, &written);
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last2[0] = 13;
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last2[1] = 10;
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}
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msgCount++;
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if (pCount)
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*pCount = msgCount;
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if (pBytesDone)
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*pBytesDone = didBytes;
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}
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else {
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// Error reading message, should this be logged???
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IMPORT_LOG2( "Error reading message from %S at 0x%lx\n", name.get(), pIndex[i]);
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}
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}
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}
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delete [] pBuffer;
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inFile->CloseStream();
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pDestination->CloseStream();
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// block[2] contains the chars in the buffer (ie, buf content size).
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// block[3] contains offset to the next block of data (0 means no more data).
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size = block[2];
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pStart = pBuffer;
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pEnd = pStart + size;
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return( rv);
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}
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do
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{
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partialLine.Truncate();
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partialLineStart = pEnd;
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// If the buffer doesn't end with CRLF then a line is broken into two blocks,
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// so save the incomplete line for later process when we read the next block.
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if ( (size > 1) && !(*(pEnd - 2) == nsCRT::CR && *(pEnd - 1) == nsCRT::LF) )
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{
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partialLineStart -= 2;
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while ((partialLineStart >= pStart) && (*partialLineStart != nsCRT::CR) && (*(partialLineStart+1) != nsCRT::LF))
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partialLineStart--;
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if (partialLineStart != (pEnd - 2))
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partialLineStart += 2; // skip over CRLF if we find them.
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partialLine.Assign(partialLineStart, pEnd - partialLineStart);
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}
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#define ISFROMLINE( pChar, i) (*(pChar + i) == 'F') && (*(pChar + i + 1) == 'r') && \
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(*(pChar + i + 2) == 'o') && (*(pChar + i + 3) == 'm') && \
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(*(pChar + i + 4) == ' ')
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// Now process the block of data which ends with CRLF.
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rv = EscapeFromSpaceLine(pDestination, pStart, partialLineStart);
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if (NS_FAILED(rv))
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break;
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didBytes += block[2];
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nsresult nsOE5File::WriteMessageBuffer( nsIFileSpec *stream, char *pBuffer, PRUint32 size, char *last2)
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{
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if (!size)
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return( NS_OK);
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next = block[3];
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if (! next)
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{
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// OK, we're done so flush out the partial line if it's not empty.
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if (partialLine.Length())
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rv = EscapeFromSpaceLine(pDestination, (char *)partialLine.get(), (partialLine.get()+partialLine.Length()));
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}
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else
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if (ReadBytes(inFile, block, next, 16) && (block[0] == next) &&
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(block[2] < kMailboxBufferSize) && (ReadBytes(inFile, pBuffer, kDontSeek, block[2])))
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{
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// See if we have a partial line from previous block. If so then build a complete
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// line (ie, take the remaining chars from this block) and process this line. Need
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// to adjust where data start and size in this case.
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size = block[2];
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pStart = pBuffer;
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pEnd = pStart + size;
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if (partialLine.Length())
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{
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while ((pStart < pEnd) && (*pStart != nsCRT::CR) && (*(pStart+1) != nsCRT::LF))
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pStart++;
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tempLine.Assign(pBuffer, pStart - pBuffer + 2);
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partialLine.Append(tempLine);
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rv = EscapeFromSpaceLine(pDestination, (char *)partialLine.get(), (partialLine.get()+partialLine.Length()));
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if (NS_FAILED(rv))
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break;
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// Adjust where data start and size (since some of the data has been processed).
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size -= (pStart - pBuffer + 2);
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pStart += 2;
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}
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}
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else
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{
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IMPORT_LOG2( "Error reading message from %S at 0x%lx\n", name.get(), pIndex[i]);
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rv = pDestination->Write( "\x0D\x0A", 2, &written);
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next = 0;
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}
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} while (next);
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PRInt32 written;
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nsresult rv = NS_OK;
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// Always end a msg with CRLF. This will make sure that OE msgs without body is
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// correctly recognized as msgs. Otherwise, we'll end up with the following in
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// the msg folder where the 2nd msg starts right after the headers of the 1st msg:
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//
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// From - Jan 1965 00:00:00 <<<--- 1st msg starts here
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// Subject: Test msg
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// . . . (more headers)
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// To: <someone@netscape.com>
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// From - Jan 1965 00:00:00 <<<--- 2nd msg starts here
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// Subject: How are you
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// . . .(more headers)
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//
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// In this case, the 1st msg is not recognized as a msg (it's skipped)
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// when you open the folder.
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rv = pDestination->Write( "\x0D\x0A", 2, &written);
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//check the very beginning of the buffer to make sure it's not a from
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// line
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if ((size > 4) && ((last2[0] = 0x0D) && (last2[1] == 0x0A)) || (last2[1] == 0x0D)) {
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if ((last2[1] == 0x0D) && (size > 5) && (*pBuffer == 0x0A) && ISFROMLINE( pBuffer, 1)) {
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rv = stream->Write( pBuffer, 1, &written);
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pBuffer++;
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size--;
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if (NS_SUCCEEDED( rv))
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rv = stream->Write( ">", 1, &written);
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}
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else if ((last2[0] == 0x0D) && ISFROMLINE( pBuffer, 0)) {
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rv = stream->Write( ">", 1, &written);
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}
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if (NS_FAILED( rv))
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return( rv);
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}
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// examine the rest of the buffer for from problems!
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PRUint32 cnt = 0;
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char * pChar = pBuffer;
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if (size > 6) {
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while (cnt < (size - 6)) {
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if ((*pChar == 0x0D) && (*(pChar + 1) == 0x0A) && ISFROMLINE( pChar, 2)) {
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rv = stream->Write( pBuffer, cnt + 2, &written);
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pBuffer += (cnt + 2);
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size -= (cnt + 2);
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pChar += 2;
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cnt = 0;
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if (NS_SUCCEEDED( rv)) {
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rv = stream->Write( ">", 1, &written);
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}
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if (NS_FAILED( rv))
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return( rv);
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}
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else {
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cnt++;
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pChar++;
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}
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}
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}
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rv = stream->Write( pBuffer, (PRInt32) size, &written);
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if (NS_FAILED(rv))
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break;
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if (NS_SUCCEEDED( rv)) {
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if (size > 1) {
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last2[0] = *(pBuffer + size - 2);
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last2[1] = *(pBuffer + size - 1);
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msgCount++;
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if (pCount)
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*pCount = msgCount;
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if (pBytesDone)
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*pBytesDone = didBytes;
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}
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else {
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last2[0] = last2[1];
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last2[1] = *pBuffer;
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}
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// Error reading message, should this be logged???
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IMPORT_LOG2( "Error reading message from %S at 0x%lx\n", name.get(), pIndex[i]);
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*pAbort = PR_TRUE;
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}
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}
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delete [] pBuffer;
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inFile->CloseStream();
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pDestination->CloseStream();
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return( rv);
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if (NS_FAILED(rv))
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*pAbort = PR_TRUE;
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return( rv);
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}
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/*
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A message index record consists of:
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4 byte marker - matches record offset
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@ -65,7 +65,6 @@ private:
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static PRBool ReadBytes( nsIFileSpec *stream, void *pBuffer, PRUint32 offset, PRUint32 bytes);
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static PRUint32 ReadMsgIndex( nsIFileSpec *file, PRUint32 offset, PRUint32Array *pArray);
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static void ConvertIndex( nsIFileSpec *pFile, char *pBuffer, PRUint32 *pIndex, PRUint32 size);
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static nsresult WriteMessageBuffer( nsIFileSpec *stream, char *pBuffer, PRUint32 size, char *last2);
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static PRBool IsFromLine( char *pLine, PRUint32 len);
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