diff options
Diffstat (limited to 'uriloader/exthandler/mac/nsDecodeAppleFile.cpp')
| -rw-r--r-- | uriloader/exthandler/mac/nsDecodeAppleFile.cpp | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/uriloader/exthandler/mac/nsDecodeAppleFile.cpp b/uriloader/exthandler/mac/nsDecodeAppleFile.cpp new file mode 100644 index 000000000..1a428a62d --- /dev/null +++ b/uriloader/exthandler/mac/nsDecodeAppleFile.cpp @@ -0,0 +1,389 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* 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/. */ + +#include "nsDecodeAppleFile.h" +#include "prmem.h" +#include "nsCRT.h" + + +NS_IMPL_ADDREF(nsDecodeAppleFile) +NS_IMPL_RELEASE(nsDecodeAppleFile) + +NS_INTERFACE_MAP_BEGIN(nsDecodeAppleFile) + NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIOutputStream) + NS_INTERFACE_MAP_ENTRY(nsIOutputStream) +NS_INTERFACE_MAP_END_THREADSAFE + +nsDecodeAppleFile::nsDecodeAppleFile() +{ + m_state = parseHeaders; + m_dataBufferLength = 0; + m_dataBuffer = (unsigned char*) PR_MALLOC(MAX_BUFFERSIZE); + m_entries = nullptr; + m_rfRefNum = -1; + m_totalDataForkWritten = 0; + m_totalResourceForkWritten = 0; + m_headerOk = false; + + m_comment[0] = 0; + memset(&m_dates, 0, sizeof(m_dates)); + memset(&m_finderInfo, 0, sizeof(m_dates)); + memset(&m_finderExtraInfo, 0, sizeof(m_dates)); +} + +nsDecodeAppleFile::~nsDecodeAppleFile() +{ + + PR_FREEIF(m_dataBuffer); + if (m_entries) + delete [] m_entries; +} + +NS_IMETHODIMP nsDecodeAppleFile::Initialize(nsIOutputStream *output, nsIFile *file) +{ + m_output = output; + + nsCOMPtr<nsILocalFileMac> macFile = do_QueryInterface(file); + macFile->GetTargetFSSpec(&m_fsFileSpec); + + m_offset = 0; + m_dataForkOffset = 0; + + return NS_OK; +} + +NS_IMETHODIMP nsDecodeAppleFile::Close(void) +{ + nsresult rv; + rv = m_output->Close(); + + int32_t i; + + if (m_rfRefNum != -1) + FSClose(m_rfRefNum); + + /* Check if the file is complete and if it's the case, write file attributes */ + if (m_headerOk) + { + bool dataOk = true; /* It's ok if the file doesn't have a datafork, therefore set it to true by default. */ + if (m_headers.magic == APPLESINGLE_MAGIC) + { + for (i = 0; i < m_headers.entriesCount; i ++) + if (ENT_DFORK == m_entries[i].id) + { + dataOk = (bool)(m_totalDataForkWritten == m_entries[i].length); + break; + } + } + + bool resourceOk = FALSE; + for (i = 0; i < m_headers.entriesCount; i ++) + if (ENT_RFORK == m_entries[i].id) + { + resourceOk = (bool)(m_totalResourceForkWritten == m_entries[i].length); + break; + } + + if (dataOk && resourceOk) + { + HFileInfo *fpb; + CInfoPBRec cipbr; + + fpb = (HFileInfo *) &cipbr; + fpb->ioVRefNum = m_fsFileSpec.vRefNum; + fpb->ioDirID = m_fsFileSpec.parID; + fpb->ioNamePtr = m_fsFileSpec.name; + fpb->ioFDirIndex = 0; + PBGetCatInfoSync(&cipbr); + + /* set finder info */ + memcpy(&fpb->ioFlFndrInfo, &m_finderInfo, sizeof (FInfo)); + memcpy(&fpb->ioFlXFndrInfo, &m_finderExtraInfo, sizeof (FXInfo)); + fpb->ioFlFndrInfo.fdFlags &= 0xfc00; /* clear flags maintained by finder */ + + /* set file dates */ + fpb->ioFlCrDat = m_dates.create - CONVERT_TIME; + fpb->ioFlMdDat = m_dates.modify - CONVERT_TIME; + fpb->ioFlBkDat = m_dates.backup - CONVERT_TIME; + + /* update file info */ + fpb->ioDirID = fpb->ioFlParID; + PBSetCatInfoSync(&cipbr); + + /* set comment */ + IOParam vinfo; + GetVolParmsInfoBuffer vp; + DTPBRec dtp; + + memset((void *) &vinfo, 0, sizeof (vinfo)); + vinfo.ioVRefNum = fpb->ioVRefNum; + vinfo.ioBuffer = (Ptr) &vp; + vinfo.ioReqCount = sizeof (vp); + if (PBHGetVolParmsSync((HParmBlkPtr) &vinfo) == noErr && ((vp.vMAttrib >> bHasDesktopMgr) & 1)) + { + memset((void *) &dtp, 0, sizeof (dtp)); + dtp.ioVRefNum = fpb->ioVRefNum; + if (PBDTGetPath(&dtp) == noErr) + { + dtp.ioDTBuffer = (Ptr) &m_comment[1]; + dtp.ioNamePtr = fpb->ioNamePtr; + dtp.ioDirID = fpb->ioDirID; + dtp.ioDTReqCount = m_comment[0]; + if (PBDTSetCommentSync(&dtp) == noErr) + PBDTFlushSync(&dtp); + } + } + } + } + + return rv; +} + +NS_IMETHODIMP nsDecodeAppleFile::Flush(void) +{ + return m_output->Flush(); +} + +NS_IMETHODIMP nsDecodeAppleFile::WriteFrom(nsIInputStream *inStr, uint32_t count, uint32_t *_retval) +{ + return m_output->WriteFrom(inStr, count, _retval); +} + +NS_IMETHODIMP nsDecodeAppleFile::WriteSegments(nsReadSegmentFun reader, void * closure, uint32_t count, uint32_t *_retval) +{ + return m_output->WriteSegments(reader, closure, count, _retval); +} + +NS_IMETHODIMP nsDecodeAppleFile::IsNonBlocking(bool *aNonBlocking) +{ + return m_output->IsNonBlocking(aNonBlocking); +} + +NS_IMETHODIMP nsDecodeAppleFile::Write(const char *buffer, uint32_t bufferSize, uint32_t* writeCount) +{ + /* WARNING: to simplify my life, I presume that I should get all appledouble headers in the first block, + else I would have to implement a buffer */ + + const char * buffPtr = buffer; + uint32_t dataCount; + int32_t i; + nsresult rv = NS_OK; + + *writeCount = 0; + + while (bufferSize > 0 && NS_SUCCEEDED(rv)) + { + switch (m_state) + { + case parseHeaders : + dataCount = sizeof(ap_header) - m_dataBufferLength; + if (dataCount > bufferSize) + dataCount = bufferSize; + memcpy(&m_dataBuffer[m_dataBufferLength], buffPtr, dataCount); + m_dataBufferLength += dataCount; + + if (m_dataBufferLength == sizeof(ap_header)) + { + memcpy(&m_headers, m_dataBuffer, sizeof(ap_header)); + + /* Check header to be sure we are dealing with the right kind of data, else just write it to the data fork. */ + if ((m_headers.magic == APPLEDOUBLE_MAGIC || m_headers.magic == APPLESINGLE_MAGIC) && + m_headers.version == VERSION && m_headers.entriesCount) + { + /* Just to be sure, the filler must contains only 0 */ + for (i = 0; i < 4 && m_headers.fill[i] == 0L; i ++) + ; + if (i == 4) + m_state = parseEntries; + } + m_dataBufferLength = 0; + + if (m_state == parseHeaders) + { + dataCount = 0; + m_state = parseWriteThrough; + } + } + break; + + case parseEntries : + if (!m_entries) + { + m_entries = new ap_entry[m_headers.entriesCount]; + if (!m_entries) + return NS_ERROR_OUT_OF_MEMORY; + } + uint32_t entriesSize = sizeof(ap_entry) * m_headers.entriesCount; + dataCount = entriesSize - m_dataBufferLength; + if (dataCount > bufferSize) + dataCount = bufferSize; + memcpy(&m_dataBuffer[m_dataBufferLength], buffPtr, dataCount); + m_dataBufferLength += dataCount; + + if (m_dataBufferLength == entriesSize) + { + for (i = 0; i < m_headers.entriesCount; i ++) + { + memcpy(&m_entries[i], &m_dataBuffer[i * sizeof(ap_entry)], sizeof(ap_entry)); + if (m_headers.magic == APPLEDOUBLE_MAGIC) + { + uint32_t offset = m_entries[i].offset + m_entries[i].length; + if (offset > m_dataForkOffset) + m_dataForkOffset = offset; + } + } + m_headerOk = true; + m_state = parseLookupPart; + } + break; + + case parseLookupPart : + /* which part are we parsing? */ + m_currentPartID = -1; + for (i = 0; i < m_headers.entriesCount; i ++) + if (m_offset == m_entries[i].offset && m_entries[i].length) + { + m_currentPartID = m_entries[i].id; + m_currentPartLength = m_entries[i].length; + m_currentPartCount = 0; + + switch (m_currentPartID) + { + case ENT_DFORK : m_state = parseDataFork; break; + case ENT_RFORK : m_state = parseResourceFork; break; + + case ENT_COMMENT : + case ENT_DATES : + case ENT_FINFO : + m_dataBufferLength = 0; + m_state = parsePart; + break; + + default : m_state = parseSkipPart; break; + } + break; + } + + if (m_currentPartID == -1) + { + /* maybe is the datafork of an appledouble file? */ + if (m_offset == m_dataForkOffset) + { + m_currentPartID = ENT_DFORK; + m_currentPartLength = -1; + m_currentPartCount = 0; + m_state = parseDataFork; + } + else + dataCount = 1; + } + break; + + case parsePart : + dataCount = m_currentPartLength - m_dataBufferLength; + if (dataCount > bufferSize) + dataCount = bufferSize; + memcpy(&m_dataBuffer[m_dataBufferLength], buffPtr, dataCount); + m_dataBufferLength += dataCount; + + if (m_dataBufferLength == m_currentPartLength) + { + switch (m_currentPartID) + { + case ENT_COMMENT : + m_comment[0] = m_currentPartLength > 255 ? 255 : m_currentPartLength; + memcpy(&m_comment[1], buffPtr, m_comment[0]); + break; + case ENT_DATES : + if (m_currentPartLength == sizeof(m_dates)) + memcpy(&m_dates, buffPtr, m_currentPartLength); + break; + case ENT_FINFO : + if (m_currentPartLength == (sizeof(m_finderInfo) + sizeof(m_finderExtraInfo))) + { + memcpy(&m_finderInfo, buffPtr, sizeof(m_finderInfo)); + memcpy(&m_finderExtraInfo, buffPtr + sizeof(m_finderInfo), sizeof(m_finderExtraInfo)); + } + break; + } + m_state = parseLookupPart; + } + break; + + case parseSkipPart : + dataCount = m_currentPartLength - m_currentPartCount; + if (dataCount > bufferSize) + dataCount = bufferSize; + else + m_state = parseLookupPart; + break; + + case parseDataFork : + if (m_headers.magic == APPLEDOUBLE_MAGIC) + dataCount = bufferSize; + else + { + dataCount = m_currentPartLength - m_currentPartCount; + if (dataCount > bufferSize) + dataCount = bufferSize; + else + m_state = parseLookupPart; + } + + if (m_output) + { + uint32_t writeCount; + rv = m_output->Write((const char *)buffPtr, dataCount, &writeCount); + if (dataCount != writeCount) + rv = NS_ERROR_FAILURE; + m_totalDataForkWritten += dataCount; + } + + break; + + case parseResourceFork : + dataCount = m_currentPartLength - m_currentPartCount; + if (dataCount > bufferSize) + dataCount = bufferSize; + else + m_state = parseLookupPart; + + if (m_rfRefNum == -1) + { + if (noErr != FSpOpenRF(&m_fsFileSpec, fsWrPerm, &m_rfRefNum)) + return NS_ERROR_FAILURE; + } + + long count = dataCount; + if (noErr != FSWrite(m_rfRefNum, &count, buffPtr) || count != dataCount) + return NS_ERROR_FAILURE; + m_totalResourceForkWritten += dataCount; + break; + + case parseWriteThrough : + dataCount = bufferSize; + if (m_output) + { + uint32_t writeCount; + rv = m_output->Write((const char *)buffPtr, dataCount, &writeCount); + if (dataCount != writeCount) + rv = NS_ERROR_FAILURE; + } + break; + } + + if (dataCount) + { + *writeCount += dataCount; + bufferSize -= dataCount; + buffPtr += dataCount; + m_currentPartCount += dataCount; + m_offset += dataCount; + dataCount = 0; + } + } + + return rv; +} |