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, 487 insertions, 0 deletions

diff --git a/extensions/source/macosx/spotlight/OOoSpotlightImporter.m b/extensions/source/macosx/spotlight/OOoSpotlightImporter.m
new file mode 100644
index 000000000..a144fe259
--- /dev/null
+++ b/extensions/source/macosx/spotlight/OOoSpotlightImporter.m
@@ -0,0 +1,487 @@
+/* -*- 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 .
+ */
+
+#import <zlib.h>
+
+#import "OOoSpotlightImporter.h"
+#import "OOoMetaDataParser.h"
+#import "OOoContentDataParser.h"
+
+/* a dictionary to hold the UTIs */
+static NSDictionary *uti2kind;
+
+typedef struct {
+    unsigned short min_version;
+    unsigned short general_flag;
+    unsigned short compression;
+    unsigned short lastmod_time;
+    unsigned short lastmod_date;
+    unsigned crc32;
+    unsigned compressed_size;
+    unsigned uncompressed_size;
+    unsigned short filename_size;
+    unsigned short extra_field_size;
+    NSString *filename;
+    NSString *extra_field;
+} LocalFileHeader;
+
+typedef struct {
+    unsigned short creator_version;
+    unsigned short min_version;
+    unsigned short general_flag;
+    unsigned short compression;
+    unsigned short lastmod_time;
+    unsigned short lastmod_date;
+    unsigned crc32;
+    unsigned compressed_size;
+    unsigned uncompressed_size;
+    unsigned short filename_size;
+    unsigned short extra_field_size;
+    unsigned short file_comment_size;
+    unsigned short disk_num;
+    unsigned short internal_attr;
+    unsigned external_attr;
+    unsigned offset;
+    NSString *filename;
+    NSString *extra_field;
+    NSString *file_comment;
+} CentralDirectoryEntry;
+
+typedef struct {
+    unsigned short disk_num;
+    unsigned short cdir_disk;
+    unsigned short disk_entries;
+    unsigned short cdir_entries;
+    unsigned cdir_size;
+    unsigned cdir_offset;
+    unsigned short comment_size;
+    NSString *comment;
+} CentralDirectoryEnd;
+
+#define CDIR_ENTRY_SIG (0x02014b50)
+#define LOC_FILE_HEADER_SIG (0x04034b50)
+#define CDIR_END_SIG (0x06054b50)
+
+static unsigned char readByte(NSFileHandle *file)
+{
+    if (file  == nil)
+        return 0;
+    NSData* tmpBuf = [file readDataOfLength: 1];
+    if (tmpBuf == nil)
+        return 0;
+    unsigned char *d = (unsigned char*)[tmpBuf bytes];
+    if (d == nil)
+        return 0;
+    return *d;
+}
+
+static unsigned short readShort(NSFileHandle *file)
+{
+    unsigned short p0 = (unsigned short)readByte(file);
+    unsigned short p1 = (unsigned short)readByte(file);
+    return (unsigned short)(p0|(p1<<8));
+}
+
+static unsigned readInt(NSFileHandle *file)
+{
+    unsigned p0 = (unsigned)readByte(file);
+    unsigned p1 = (unsigned)readByte(file);
+    unsigned p2 = (unsigned)readByte(file);
+    unsigned p3 = (unsigned)readByte(file);
+    return (unsigned)(p0|(p1<<8)|(p2<<16)|(p3<<24));
+}
+
+static bool readCentralDirectoryEnd(NSFileHandle *file, CentralDirectoryEnd *end)
+{
+    unsigned signature = readInt(file);
+    if (signature != CDIR_END_SIG)
+        return false;
+
+    end->disk_num = readShort(file);
+    end->cdir_disk = readShort(file);
+    end->disk_entries = readShort(file);
+    end->cdir_entries = readShort(file);
+    end->cdir_size = readInt(file);
+    end->cdir_offset = readInt(file);
+    end->comment_size = readShort(file);
+    NSData *data = [file readDataOfLength: end->comment_size];
+    end->comment = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
+    return true;
+}
+
+static bool readCentralDirectoryEntry(NSFileHandle *file, CentralDirectoryEntry *entry)
+{
+    unsigned signature = readInt(file);
+    if (signature != CDIR_ENTRY_SIG)
+        return false;
+
+    entry->creator_version = readShort(file);
+    entry->min_version = readShort(file);
+    entry->general_flag = readShort(file);
+    entry->compression = readShort(file);
+    entry->lastmod_time = readShort(file);
+    entry->lastmod_date = readShort(file);
+    entry->crc32 = readInt(file);
+    entry->compressed_size = readInt(file);
+    entry->uncompressed_size = readInt(file);
+    entry->filename_size = readShort(file);
+    entry->extra_field_size = readShort(file);
+    entry->file_comment_size = readShort(file);
+    entry->disk_num = readShort(file);
+    entry->internal_attr = readShort(file);
+    entry->external_attr = readInt(file);
+    entry->offset = readInt(file);
+    NSData *data = [file readDataOfLength: entry->filename_size];
+    entry->filename = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
+    data = [file readDataOfLength: entry->extra_field_size];
+    entry->extra_field = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
+    data = [file readDataOfLength: entry->file_comment_size];
+    entry->file_comment = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
+    return true;
+}
+
+static bool readLocalFileHeader(NSFileHandle *file, LocalFileHeader *header)
+{
+    unsigned signature = readInt(file);
+    if (signature != LOC_FILE_HEADER_SIG)
+        return false;
+
+    header->min_version = readShort(file);
+    header->general_flag = readShort(file);
+    header->compression = readShort(file);
+    header->lastmod_time = readShort(file);
+    header->lastmod_date = readShort(file);
+    header->crc32 = readInt(file);
+    header->compressed_size = readInt(file);
+    header->uncompressed_size = readInt(file);
+    header->filename_size = readShort(file);
+    header->extra_field_size = readShort(file);
+    NSData *data = [file readDataOfLength: header->filename_size];
+    header->filename = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
+    data = [file readDataOfLength: header->extra_field_size];
+    header->extra_field = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
+    return true;
+}
+
+static bool areHeadersConsistent(const LocalFileHeader *header, const CentralDirectoryEntry *entry)
+{
+    if (header->min_version != entry->min_version)
+        return false;
+    if (header->general_flag != entry->general_flag)
+        return false;
+    if (header->compression != entry->compression)
+        return false;
+    if (!(header->general_flag & 0x08))
+    {
+        if (header->crc32 != entry->crc32)
+            return false;
+        if (header->compressed_size != entry->compressed_size)
+            return false;
+        if (header->uncompressed_size != entry->uncompressed_size)
+            return false;
+    }
+    return true;
+}
+
+static bool findCentralDirectoryEnd(NSFileHandle *file)
+{
+    // Assume the cdir end is in the last 1024 bytes
+    // Scan backward from end of file for the end signature
+
+    [file seekToEndOfFile];
+    unsigned long long fileLength = [file offsetInFile];
+
+    if (fileLength < 10)
+        return false;
+
+    [file seekToFileOffset: (fileLength - 4)];
+
+    unsigned long long limit;
+    if (fileLength > 1024)
+        limit = fileLength - 1024;
+    else
+        limit = 0;
+
+    unsigned long long offset;
+    while ((offset = [file offsetInFile]) > limit)
+    {
+        unsigned signature = readInt(file);
+        if (signature == CDIR_END_SIG)
+        {
+            // Seek back over the CDIR_END_SIG
+            [file seekToFileOffset: offset];
+            return true;
+        }
+        else
+        {
+            // Seek one byte back
+            [file seekToFileOffset: (offset - 1)];
+        }
+    }
+    return false;
+}
+
+static bool isZipFile(NSFileHandle *file)
+{
+    if (!findCentralDirectoryEnd(file))
+        return false;
+    CentralDirectoryEnd end;
+    if (!readCentralDirectoryEnd(file, &end))
+        return false;
+    [file seekToFileOffset: end.cdir_offset];
+    CentralDirectoryEntry entry;
+    if (!readCentralDirectoryEntry(file, &entry))
+        return false;
+    [file seekToFileOffset: entry.offset];
+    LocalFileHeader header;
+    if (!readLocalFileHeader(file, &header))
+        return false;
+    if (!areHeadersConsistent(&header, &entry))
+        return false;
+    return true;
+}
+
+static bool findDataStream(NSFileHandle *file, CentralDirectoryEntry *entry, NSString *name)
+{
+    [file seekToEndOfFile];
+    unsigned long long fileLength = [file offsetInFile];
+    if (!findCentralDirectoryEnd(file))
+        return false;
+    CentralDirectoryEnd end;
+    if (!readCentralDirectoryEnd(file, &end))
+        return false;
+    [file seekToFileOffset: end.cdir_offset];
+    do
+    {
+        if (!readCentralDirectoryEntry(file, entry))
+            return false;
+        if ([entry->filename compare: name] == NSOrderedSame)
+            break;
+    }
+    while ( [file offsetInFile] < fileLength && [file offsetInFile] < end.cdir_offset + end.cdir_size);
+    if ([entry->filename compare: name] != NSOrderedSame)
+        return false;
+    [file seekToFileOffset: entry->offset];
+    LocalFileHeader header;
+    if (!readLocalFileHeader(file, &header))
+        return false;
+    if (!areHeadersConsistent(&header, entry))
+        return false;
+    return true;
+}
+
+static NSData *getUncompressedData(NSFileHandle *file, NSString *name)
+{
+    CentralDirectoryEntry entry;
+    if (!findDataStream(file, &entry, name))
+        return nil;
+    if (!entry.compression)
+        return [file readDataOfLength: entry.compressed_size];
+    else
+    {
+        int ret;
+        z_stream strm;
+
+        /* allocate inflate state */
+        strm.zalloc = Z_NULL;
+        strm.zfree = Z_NULL;
+        strm.opaque = Z_NULL;
+        strm.avail_in = 0;
+        strm.next_in = Z_NULL;
+        ret = inflateInit2(&strm,-MAX_WBITS);
+        if (ret != Z_OK)
+            return nil;
+
+        NSData *compressedData = [file readDataOfLength: entry.compressed_size];
+
+        strm.avail_in = [compressedData length];
+        strm.next_in = (Bytef *)[compressedData bytes];
+
+        Bytef *uncompressedData = (Bytef *)malloc(entry.uncompressed_size);
+        if (!uncompressedData)
+        {
+            (void)inflateEnd(&strm);
+            return nil;
+        }
+        strm.avail_out = entry.uncompressed_size;
+        strm.next_out = uncompressedData;
+        ret = inflate(&strm, Z_FINISH);
+        switch (ret)
+        {
+        case Z_NEED_DICT:
+        case Z_DATA_ERROR:
+        case Z_MEM_ERROR:
+            (void)inflateEnd(&strm);
+            free(uncompressedData);
+            return nil;
+        }
+        (void)inflateEnd(&strm);
+        NSData *returnBuffer = [NSData dataWithBytes:(const void *)uncompressedData length:entry.uncompressed_size];
+        free(uncompressedData);
+        return returnBuffer;
+    }
+}
+
+@implementation OOoSpotlightImporter
+
+/* initialize is only called once the first time this class is loaded */
++ (void)initialize
+{
+    static BOOL isInitialized = NO;
+    if (isInitialized == NO) {
+        NSMutableDictionary *temp = [NSMutableDictionary new];
+        [temp setObject:@"OpenOffice.org 1.0 Text" forKey:@"org.openoffice.text"];
+        [temp setObject:@"OpenDocument Text" forKey:@"org.oasis.opendocument.text"];
+        [temp setObject:@"OpenOffice.org 1.0 Spreadsheet" forKey:@"org.openoffice.spreadsheet"];
+        [temp setObject:@"OpenDocument Spreadsheet" forKey:@"org.oasis.opendocument.spreadsheet"];
+        [temp setObject:@"OpenOffice.org 1.0 Presentation" forKey:@"org.openoffice.presentation"];
+        [temp setObject:@"OpenDocument Presentation" forKey:@"org.oasis.opendocument.presentation"];
+        [temp setObject:@"OpenOffice.org 1.0 Drawing" forKey:@"org.openoffice.graphics"];
+        [temp setObject:@"OpenDocument Drawing" forKey:@"org.oasis.opendocument.graphics"];
+        [temp setObject:@"OpenOffice.org 1.0 Master" forKey:@"org.openoffice.text-master"];
+        [temp setObject:@"OpenDocument Master" forKey:@"org.oasis.opendocument.text-master"];
+        [temp setObject:@"OpenOffice.org 1.0 Formula" forKey:@"org.openoffice.formula"];
+        [temp setObject:@"OpenDocument Formula" forKey:@"org.oasis.opendocument.formula"];
+        [temp setObject:@"OpenOffice.org 1.0 Text Template" forKey:@"org.openoffice.text-template"];
+        [temp setObject:@"OpenDocument Text Template" forKey:@"org.oasis.opendocument.text-template"];
+        [temp setObject:@"OpenOffice.org 1.0 Spreadsheet Template" forKey:@"org.openoffice.spreadsheet-template"];
+        [temp setObject:@"OpenDocument Spreadsheet Template" forKey:@"org.oasis.opendocument.spreadsheet-template"];
+        [temp setObject:@"OpenOffice.org 1.0 Presentation Template" forKey:@"org.openoffice.presentation-template"];
+        [temp setObject:@"OpenDocument Presentation Template" forKey:@"org.oasis.opendocument.presentation-template"];
+        [temp setObject:@"OpenOffice.org 1.0 Drawing Template" forKey:@"org.openoffice.graphics-template"];
+        [temp setObject:@"OpenDocument Drawing Template" forKey:@"org.oasis.opendocument.graphics-template"];
+        [temp setObject:@"OpenOffice.org 1.0 Database" forKey:@"org.openoffice.database"];
+        [temp setObject:@"OpenDocument Chart" forKey:@"org.oasis.opendocument.chart"];
+
+        uti2kind = [[NSDictionary dictionaryWithDictionary:temp] retain];
+        [temp release];
+
+        isInitialized = YES;
+    }
+}
+
+/* importDocument is the real starting point for our plugin */
+- (BOOL)importDocument:(NSString*)pathToFile contentType:(NSString*)contentTypeUTI attributes:(NSMutableDictionary*)attributes
+{
+    //NSLog(contentTypeUTI);
+    //NSLog(pathToFile);
+
+    NSString *itemKind = [uti2kind objectForKey:contentTypeUTI];
+    if (itemKind != nil) {
+        [attributes setObject:itemKind forKey:(NSString*)kMDItemKind];
+    }
+
+    //first check to see if this is a valid zipped file that contains a file "meta.xml"
+    NSFileHandle *unzipFile = [self openZipFileAtPath:pathToFile];
+
+
+    if (unzipFile == nil) {
+        //NSLog(@"zip file not open");
+        return NO;
+    }
+
+    //first get the metadata
+    NSData *metaData = [self metaDataFileFromZip:unzipFile];
+    if (metaData == nil) {
+        [unzipFile closeFile];
+        return YES;
+    }
+
+    [metaData retain];
+
+    OOoMetaDataParser *parser = [OOoMetaDataParser new];
+    if (parser != nil) {
+        //parse and extract the data
+        [parser parseXML:metaData intoDictionary:attributes];
+    }
+
+    [metaData release];
+    [parser release];
+
+    //and now get the content
+    NSData *contentData = [self contentDataFileFromZip:unzipFile];
+    if (contentData == nil) {
+        [unzipFile closeFile];
+        return YES;
+    }
+
+    [contentData retain];
+
+    OOoContentDataParser *parser2 = [OOoContentDataParser new];
+    if (parser2 != nil) {
+        //parse and extract the data
+        [parser2 parseXML:contentData intoDictionary:attributes];
+    }
+
+    [contentData release];
+    [parser2 release];
+
+    [unzipFile closeFile];
+
+    return YES;
+}
+
+/* openZipFileAtPath returns the file as a valid data structure or nil otherwise*/
+- (NSFileHandle*)openZipFileAtPath:(NSString*)pathToFile
+{
+    NSFileHandle* unzipFile = nil;
+
+    if ([pathToFile length] != 0)
+    {
+        unzipFile = [NSFileHandle fileHandleForReadingAtPath: pathToFile];
+    }
+
+    if (unzipFile == nil)
+    {
+        //NSLog(@"Cannot open %s",zipfilename);
+        return nil;
+    }
+
+    if (!isZipFile(unzipFile))
+    {
+        [unzipFile closeFile];
+        return nil;
+    }
+    //NSLog(@"%s opened",zipfilename);
+
+    return unzipFile;
+}
+
+/* metaDataFileFromZip extracts the file meta.xml from the zip file and returns it as an NSData* structure
+   or nil if the metadata is not present */
+- (NSData*) metaDataFileFromZip:(NSFileHandle*)unzipFile
+{
+    if (unzipFile == nil)
+        return nil;
+    return getUncompressedData(unzipFile, @"meta.xml");
+}
+
+/* contentDataFileFromZip extracts the file content.xml from the zip file and returns it as an NSData* structure
+   or nil if the metadata is not present */
+- (NSData*) contentDataFileFromZip:(NSFileHandle*)unzipFile
+{
+    if (unzipFile == nil)
+        return nil;
+    return getUncompressedData(unzipFile, @"content.xml");
+}
+
+
+@end
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */