summaryrefslogtreecommitdiff
path: root/extensions/source/macosx/spotlight/OOoSpotlightImporter.m
blob: c5918e242bc78c8129f922c3390acc7357981de3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
/*************************************************************************
*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
*************************************************************************/

#import "OOoSpotlightImporter.h"
#import "OOoMetaDataParser.h"
#import "OOoContentDataParser.h"

#define CASESENSITIVITY (0)
#define BUFFER_SIZE (4096)

/* a dictionary to hold the UTIs */
static NSDictionary *uti2kind;

@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"
    unzFile unzipFile = [self openZipFileAtPath:pathToFile];

    //
    if (unzipFile == nil) {
        //NSLog(@"zip file not open");
        return YES;
    }
    
    //first get the metadata
    NSData *metaData = [self metaDataFileFromZip:unzipFile];
    if (metaData == nil) {
        unzClose(unzipFile);
        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) {
        unzClose(unzipFile);
        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];

    unzClose(unzipFile);
    
    return YES;
}

/* openZipFileAtPath returns the file as a valid data structure or nil otherwise*/
- (unzFile)openZipFileAtPath:(NSString*)pathToFile
{
    unzFile unzipFile = nil;
    
    const char *zipfilename = [pathToFile UTF8String];
    
    if (zipfilename != nil)
    {
        unzipFile = unzOpen(zipfilename);
    }
    
    if (unzipFile == nil)
    {
        //NSLog(@"Cannot open %s",zipfilename);
        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:(unzFile)unzipFile
{
    //search and set the cursor to meta.xml
    if (unzLocateFile(unzipFile, "meta.xml", CASESENSITIVITY) != UNZ_OK) {
        //we hit an error, do cleanup
        unzCloseCurrentFile(unzipFile);
        return nil;
    }
    
    //open the current file
    if (unzOpenCurrentFile(unzipFile) != UNZ_OK) {
        //we hit an error, do cleanup
        unzCloseCurrentFile(unzipFile); 
        unzClose(unzipFile);
        return nil;
    }

    NSMutableData *data = [NSMutableData new];

    unsigned buffer[BUFFER_SIZE];
    int bytesRead = 0;
    while ((bytesRead = unzReadCurrentFile(unzipFile, buffer, sizeof(buffer))) > 0) {
        //append the data until we are finished
        [data appendData:[NSData dataWithBytes:(const void *)buffer length:bytesRead]];
    }
    
    //we no longer need the file, so close it
    unzCloseCurrentFile(unzipFile);
    
    NSData *returnValue = [NSData dataWithData:data];
    [data release];
    
    return returnValue;
}

/* 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:(unzFile)unzipFile
{
    //search and set the cursor to content.xml
    if (unzLocateFile(unzipFile, "content.xml", CASESENSITIVITY) != UNZ_OK) {
        //we hit an error, do cleanup
        unzCloseCurrentFile(unzipFile);
        return nil;
    }
    
    //open the current file
    if (unzOpenCurrentFile(unzipFile) != UNZ_OK) {
        //we hit an error, do cleanup
        unzCloseCurrentFile(unzipFile); 
        unzClose(unzipFile);
        return nil;
    }
    
    NSMutableData *data = [NSMutableData new];
    
    unsigned buffer[BUFFER_SIZE];
    int bytesRead = 0;
    while ((bytesRead = unzReadCurrentFile(unzipFile, buffer, sizeof(buffer))) > 0) {
        //append the data
        [data appendData:[NSData dataWithBytes:(const void *)buffer length:bytesRead]];
    }
    
    //we no longer need the file, so close it
    unzCloseCurrentFile(unzipFile);
    
    NSData *returnValue = [NSData dataWithData:data];
    [data release];
    
    return returnValue;
}


@end