5666149e37
Monotone-Revision: 07f66207968bbc8815cccf3c0b6d5147e13d8ab6 Monotone-Author: wsourdeau@inverse.ca Monotone-Date: 2011-10-25T18:19:08 Monotone-Branch: ca.inverse.sogo
155 lines
3.8 KiB
Objective-C
155 lines
3.8 KiB
Objective-C
/* MAPIStoreMIME.m - this file is part of SOGo
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*
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* Copyright (C) 2011 Inverse inc
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*
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* Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#import <Foundation/NSData.h>
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#import <Foundation/NSDictionary.h>
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#import <Foundation/NSFileHandle.h>
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#import <Foundation/NSString.h>
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#import "MAPIStoreMIME.h"
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/* Seems common to all distros ? */
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#define MAPIStoreMIMEFile @"/etc/mime.types"
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@implementation MAPIStoreMIME
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+ (id) sharedMAPIStoreMIME
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{
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static MAPIStoreMIME *sharedInstance = nil;
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if (!sharedInstance)
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sharedInstance = [self new];
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return sharedInstance;
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}
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- (void) _parseLine: (const char *) line
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withLength: (NSUInteger) length
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{
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NSUInteger count = 0, lastWord = 0;
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NSString *mimeType = nil, *word;
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NSData *wordData;
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BOOL comment = NO;
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while (count < length && !comment)
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{
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while (count < length
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&& (line[count] == ' ' || line[count] == '\t'))
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count++;
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lastWord = count;
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while (count < length
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&& line[count] != ' ' && line[count] != '\t'
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&& !comment)
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{
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if (line[count] == '#')
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comment = YES;
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else
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count++;
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}
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if (count > lastWord)
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{
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wordData = [NSData dataWithBytes: line + lastWord
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length: count - lastWord];
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word = [[NSString alloc] initWithData: wordData
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encoding: NSASCIIStringEncoding];
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if (word)
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{
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if (mimeType)
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{
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[mimeDict setObject: mimeType forKey: word];
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[word release];
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}
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else
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mimeType = word;
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}
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}
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}
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[mimeType release];
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}
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- (void) _parseContent: (NSData *) content
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{
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const char *data;
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NSUInteger lineStart = 0, bytesRead = 0, max;
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data = [content bytes];
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max = [content length];
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bytesRead = 0;
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lineStart = 0;
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while (bytesRead < max)
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{
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if (data[bytesRead] == '\n')
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{
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[self _parseLine: data + lineStart withLength: bytesRead - lineStart];
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lineStart = bytesRead + 1;
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}
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else if (data[bytesRead] == '\r')
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{
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[self _parseLine: data + lineStart withLength: bytesRead - lineStart];
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if (bytesRead < (max - 1) && data[bytesRead] == '\n')
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lineStart = bytesRead + 2;
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else
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lineStart = bytesRead + 1;
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}
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bytesRead++;
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}
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if (bytesRead > (lineStart + 1))
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[self _parseLine: data + lineStart withLength: bytesRead - lineStart];
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}
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- (void) _readMIMEFile
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{
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NSFileHandle *inH;
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NSData *content;
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inH = [NSFileHandle fileHandleForReadingAtPath: MAPIStoreMIMEFile];
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content = [inH readDataToEndOfFile];
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[self _parseContent: content];
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}
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- (id) init
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{
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if ((self = [super init]))
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{
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mimeDict = [NSMutableDictionary new];
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[self _readMIMEFile];
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}
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return self;
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}
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- (void) dealloc
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{
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[mimeDict release];
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[super dealloc];
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}
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- (NSString *) mimeTypeForExtension: (NSString *) extension
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{
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return [mimeDict objectForKey: [extension lowercaseString]];
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}
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@end
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