156 lines
4.1 KiB
Objective-C
156 lines
4.1 KiB
Objective-C
//
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// TWZipArchive.mm
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// TWZipArchive
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//
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// Created by Sam Soffes on 7/21/10.
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// Copyright Tasteful Works 2010. All rights reserved.
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//
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#import "TWZipArchive.h"
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#include "minizip/zip.h"
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#include "minizip/unzip.h"
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#import "zlib.h"
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#import "zconf.h"
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@interface TWZipArchive (PrivateMethods)
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+ (NSDate *)_dateFor1980;
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@end
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@implementation TWZipArchive
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+ (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination {
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return [self unzipFileAtPath:path toDestination:destination overwrite:YES password:nil];
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}
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+ (BOOL)unzipFileAtPath:(NSString *)path toDestination:(NSString *)destination overwrite:(BOOL)overwrite password:(NSString *)password {
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// Begin opening
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zipFile zip = unzOpen((const char*)[path UTF8String]);
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if (zip == NULL) {
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return NO;
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}
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unz_global_info globalInfo = {0};
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if (unzGetGlobalInfo(zip, &globalInfo) == UNZ_OK) {
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NSLog(@"%d entries in the zip file", globalInfo.number_entry);
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}
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// Begin unzipping
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if (unzGoToFirstFile(zip) != UNZ_OK) {
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return NO;
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}
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BOOL success = YES;
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int ret;
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unsigned char buffer[4096] = {0};
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NSFileManager *fileManager = [NSFileManager defaultManager];
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NSDate *nineteenEighty = [self _dateFor1980];
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do {
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if ([password length] == 0) {
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ret = unzOpenCurrentFile(zip);
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} else {
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ret = unzOpenCurrentFilePassword(zip, [password cStringUsingEncoding:NSASCIIStringEncoding]);
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}
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if (ret != UNZ_OK) {
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success = NO;
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break;
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}
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// Reading data and write to file
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int read;
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unz_file_info fileInfo = {0};
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ret = unzGetCurrentFileInfo(zip, &fileInfo, NULL, 0, NULL, 0, NULL, 0);
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if (ret != UNZ_OK) {
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success = NO;
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unzCloseCurrentFile(zip);
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break;
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}
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char *filename = (char *)malloc(fileInfo.size_filename + 1);
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unzGetCurrentFileInfo(zip, &fileInfo, filename, fileInfo.size_filename + 1, NULL, 0, NULL, 0);
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filename[fileInfo.size_filename] = '\0';
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// Check if it contains directory
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NSString *strPath = [NSString stringWithCString:filename encoding:NSUTF8StringEncoding];
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BOOL isDirectory = NO;
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if (filename[fileInfo.size_filename-1] == '/' || filename[fileInfo.size_filename-1] == '\\') {
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isDirectory = YES;
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}
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free(filename);
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// Contains a path
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if ([strPath rangeOfCharacterFromSet:[NSCharacterSet characterSetWithCharactersInString:@"/\\"]].location != NSNotFound) {
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strPath = [strPath stringByReplacingOccurrencesOfString:@"\\" withString:@"/"];
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}
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NSString* fullPath = [destination stringByAppendingPathComponent:strPath];
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if (isDirectory) {
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[fileManager createDirectoryAtPath:fullPath withIntermediateDirectories:YES attributes:nil error:nil];
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} else {
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[fileManager createDirectoryAtPath:[fullPath stringByDeletingLastPathComponent] withIntermediateDirectories:YES attributes:nil error:nil];
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}
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if ([fileManager fileExistsAtPath:fullPath] && !isDirectory && !overwrite) {
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unzCloseCurrentFile(zip);
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ret = unzGoToNextFile(zip);
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continue;
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}
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FILE *fp = fopen((const char*)[fullPath UTF8String], "wb");
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while (fp) {
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read = unzReadCurrentFile(zip, buffer, 4096);
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if (read > 0) {
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fwrite(buffer, read, 1, fp );
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} else {
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break;
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}
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}
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if (fp) {
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fclose(fp);
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// Set the orignal datetime property
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if (fileInfo.dosDate != 0) {
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NSDate *orgDate = [[NSDate alloc] initWithTimeInterval:(NSTimeInterval)fileInfo.dosDate sinceDate:nineteenEighty];
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NSDictionary *attr = [NSDictionary dictionaryWithObject:orgDate forKey:NSFileModificationDate];
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if (attr) {
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if ([fileManager setAttributes:attr ofItemAtPath:fullPath error:nil] == NO) {
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// Can't set attributes
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NSLog(@"Failed to set attributes");
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}
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}
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[orgDate release];
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}
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}
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unzCloseCurrentFile( zip );
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ret = unzGoToNextFile( zip );
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} while(ret == UNZ_OK && UNZ_OK != UNZ_END_OF_LIST_OF_FILE);
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// Close
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unzClose(zip);
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return success;
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}
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+ (NSDate *)_dateFor1980 {
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NSDateComponents *comps = [[NSDateComponents alloc] init];
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[comps setDay:1];
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[comps setMonth:1];
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[comps setYear:1980];
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NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
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NSDate *date = [gregorian dateFromComponents:comps];
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[comps release];
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[gregorian release];
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return date;
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}
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@end
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