mattconnolly/ziparchive

zip archive processing for Cocoa - iPhone and OS X

ZipArchive

ZipArchive lets Mac OS X / iOS apps read and write to ZIP archive files.

Contributors

Thanks to the following contributors to the Objective-C ZipArchive library:

• acsolu
• Matt Connolly (@mattconnolly)
• Edward Patel (@epatel)
• kajinka13
• David Keegan (@kgn)
• Yuri (@Wert1go)
• Hyunwoo Nam (@namenu)
• OpenFibers
• Wiley Kestner (@wileykestner)
• turenus
• David Feshbach

Special Thanks to the minizip authors:

• Gilles Vollant - Original MiniZip author
• Even Rouault - ZIP64 unzip Support
• Daniel Borca - BZip Compression method support in unzip
• Mathias Svensson - ZIP64 zip support
• Mathias Svensson - BZip Compression method support in zip

License

Portions of ZipArchive are licensed under the original minizip license. See the minizip headers for details. All other parts of this project are licensed under the MIT license, see LICENSE.

ziparchive's Issues

Swift support

Could you please add swift support code for ZipArchive? Adding the sample code for zipping and unzipping with and without password would be nice. There are many newcomers to iOS development who only know swift (including me).

getZipFileContents does not produce the same filenames as UnzipFileTo:overWrite:

When filenames in the zip file contain non ASCII characters (e.g. ö) , getZipFileContents does not give the same filename as those created by unzipFileTo.
It seems to be caused by the following line:
NSString * strPath = [NSString stringWithCString:filename encoding:NSASCIIStringEncoding];

I think it should be:
NSString * strPath = [NSString stringWithCString:filename encoding:self.stringEncoding];

Create zip file with Standard Zip 2.0 encryption

Hello,
I successfully create zip file with password using ZipArchive. However, as I know, there is only one encryption method used that is aes 256. How to create file zip with password using the Standard Zip 2.0 encryption?

make fails

when i run make i get the following error?

fatal error: 'direct.h' file not found

Convert to straight Objective-C

Find out if there's any compelling reason to use Objective-C++ instead of Obj-C. Going back to Obj-C will enable static analysis, Clang compiler and simplified runtimes.

Cancel ongoing unzipFileTo

Please consider this as a "feature enhancement request" because it seems like currently it doesn't support "cancel" or suspend/resume kind of functionality for unzip operation.

-(BOOL) UnzipFileTo:(NSString*) path overWrite:(BOOL) overwrite;

This is extremely important feature when you have a big zip file (or even small ~20 mb zip but with large number of files in it) that takes time (~30 seconds) to unzip, especially on iOS devices and app goes in background.

Please let me know if I'm missing something or you have further questions.

Thank you.

Does it support AES128 192 256 encrypt and How can I enable AES encrypt?

Hi, I am using objective-c
does it support AES128 192 256 encrypt?
How can I enable AES encrypt?

thank you

"direct.h" file not found

File not found

Hello,

On 'pod update' I have detect some error on miniunz.h and minizip.h. We trying to call files not find (direct.h and io.h)

ifdef unix
 include <unistd.h>
 include <utime.h>
 include <sys/stat.h>
else
 include <direct.h>
 include <io.h>
endif

I solved the problem by removing both include but regularly i'm doing pod update so if i get this error each time ... it could be a problem
can you fix it ?

UnzipFileToMemory doesn't return files with zero length

When an archive contains files that have zero length, they will not be returned by UnzipFileToMemory.

There are cases where empty files have merit, so I'm submitting a (weak) plea to make it behave in this way.

If you agree, I'll be submitting a patch.

Tom

chinese friends,look here

http://www.cxyclub.cn/n/39460/

i got problem to use libxlsxwriter and ZipArchive together

as issue at jmcnamara/libxlsxwriter#55

file modification timestamps not generated correctly

In ZipArchive.m, lines 354 to 356, the library creates an NSDate from the fileInfo.dosDate value.

                NSDate* orgDate = [[NSDate alloc]
                                   initWithTimeInterval:(NSTimeInterval)fileInfo.dosDate
                                   sinceDate:[self Date1980] ];

The value is not a time interval since 1980, it is a bitfield that contains the date components individually:

               http://proger.i-forge.net/MS-DOS_date_and_time_format/OFz

It would be better to use the fileInfo.tmu_date property as follows:

                NSDateComponents* components = [[NSDateComponents alloc] init];
                components.second = fileInfo.tmu_date.tm_sec;
                components.minute = fileInfo.tmu_date.tm_min;
                components.hour = fileInfo.tmu_date.tm_hour;
                components.day = fileInfo.tmu_date.tm_mday;
                components.month = fileInfo.tmu_date.tm_mon;
                components.year = fileInfo.tmu_date.tm_year;

                NSCalendar *gregorianCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
                NSDate* orgDate = [[gregorianCalendar dateFromComponents:components] retain];
                [components release];
                [gregorianCalendar release];

Retain Cycle cause by strong reference to delegate

Hey Matt, maybe I'm wrong but I think you should not have a strong reference to your delegate with the risk of causing a retain cycle.

https://github.com/mattconnolly/ZipArchive/blob/master/ZipArchive.h#L89

error in selectors calls (google)

duplicate of google bug at: http://code.google.com/p/ziparchive/issues/detail?id=11

Unzip encrypted zip

Is there a way to unzip an AES encrypted zip?
Can't unzip properly with this type of zip file...

Will you add UnzipIsEncrypted testing method?

like this:

-(BOOL) UnzipIsEncrypted
{
    int ret = unzGoToFirstFile( _unzFile );
    if (ret == UNZ_OK) {
        do {
            ret = unzOpenCurrentFile( _unzFile );
            if( ret!=UNZ_OK ) {
                return NO;
            }
            unz_file_info   fileInfo ={0};
            ret = unzGetCurrentFileInfo(_unzFile, &fileInfo, NULL, 0, NULL, 0, NULL, 0);
            if (ret!= UNZ_OK) {
                return NO;
            }
            else if((fileInfo.flag & 1) == 1) {
                return YES;
            }

            unzCloseCurrentFile( _unzFile );
            ret = unzGoToNextFile( _unzFile );
        }while( ret==UNZ_OK && UNZ_OK!=UNZ_END_OF_LIST_OF_FILE );


    }


    return NO;
}

posted in: here

Thanks!

NSCalendar Error iOS 7-8

There's a problem with the library on iOS 8 as some new values and interfaces were introduced like:

iOS 7: NSCalendarIdentifierGregorian
iOS 8: NSGregorianCalendar

As I see from this commit, you were using the iOS 8 one and now it's the iOS 7 value
d9736bd

I guess you should use something like this
http://stackoverflow.com/questions/25626823/how-to-support-nscalendar-with-both-ios-7-and-8

Swift Package Manager support

Did anyone tried to create SPM package for this ziparchive?

Thanks,

ERR=-3(DATA

When i unzip a file using zip archive on ios i get a err=-3 i.e. DATA ERROR.All file unzipped are of zero bytes.
While the same zip file is successfully unzipped on windows,mac and android.
Note:- The zip file is maded on mac using PKZip.

Xcode 5 Analyze warnings

I get multiple warnings from analyzing this code in Xcode 5. Are there plans to resolve these warnings?

Cannot unzip following zip

On every platform I can unzip following file:

But with ZipArchive I don't get any file.

New release

Last released version of ZipArchive (1.2.0) contains bugs in minizip, due to having an old version, which are currently preventing us from using it. Fixes in master fix these issues, but there is not a readily available pod, as that code for ZipArchive has not been officially released yet.

Would it be possible to create a new release from master which contains latest fixes?

How to compress multiple files?

How to compress multiple files?

Does ZipArchive/minizip support symbolic links in zip files?

how to use ZipArchive

this is not an issue this is help wanted.

if you can please help me with any tutorial or guide
"how to include ZipArchive to another iphone project" ?

i am so appreciative
Note: i am using XCode 3.2.4 and iOS 4.1

NSLog Usage incorrect (google code)

Duplicate of google code bug at: http://code.google.com/p/ziparchive/issues/detail?id=6

minizip.c

Password protected ZipArchive crashes on attempt to add a file to the archive

STEPS:

1. Create a test application with a code from the Listing 1 (error handling is omitted for simplicity).
2. Run the test application.

Actual result:
The test app crashes inside addFileToZip:newname: method. See the attached crash log.

Additional info:
MacOS 10.7.5, Xcode 4.5.1

Listing 1:

ZipArchive theZip = [[[ZipArchive alloc] init] autorelease];
NSString *theZippedFilePath = [NSTemporaryDirectory() stringByAppendingPathComponent:
@"archivedFile.zip"];
NSString *theFilePath = / Path to a file whose size is 300KB or more*/;

if ([[NSFileManager defaultManager] fileExistsAtPath:theZippedFilePath])
{
[[NSFileManager defaultManager] removeItemAtPath:theZippedFilePath error:nil];
}

[theZip CreateZipFile2:theZippedFilePath Password:@"password"];
[theZip addFileToZip:theFilePath newname:[theFilePath lastPathComponent]];
[theZip CloseZipFile2];

zipping file Date's month error.

when use the lib to zipping file, then unzip the zip file, alway has a error date of month.

maybe you can cherry pick this commit to fix the bug.
TechD-Robin@27af922

minizip.c

direct.h io.h not found in ios9

Making iOS binary errors

I try to make the iOS binary but I encounter somes problems :

• the libz library point to OSX SDK directory, I don't have them so I unlink this lib for the targets "ZipArchive ios" and "ZipArchive ios Tests" and link zlib (only for the testing target) with the zlib provided by iOS SDK libraries

NSFileManager instance is not multithread-safe.

Hi.

Since ZipArchive can run in background thread, NSFileManager instance must not be a shared object.

https://developer.apple.com/library/mac/#documentation/cocoa/reference/foundation/Classes/NSFileManager_Class/Reference/Reference.html

SUGGEST:

I'd suggest to add a constructor with additional NSFileManager argument instead and not to use defaultManager.

Regards.

stringWithCString deprecated (google)

google bug: http://code.google.com/p/ziparchive/issues/detail?id=7

UnzipOpenFile fails on empty zips

if you CreateZipFile2 and then immediately CloseZipFile2 it correctly creates a file of 22 bytes, but then UnzipOpenFile on that returns false with errno ESRCH. i believe it should succeed and return you and empty array of entries.

Unzip error occured

All files in "12345.zip" unzipped successfully except "Ç‹Ç∆Çfl.doc"
Please find the URL below
https://www.sendspace.com/file/bhxmux

error message is - "Failed to open output file for writing" 0x00bbed50"

Recognize protected zip file

How to recognize protected zip files to present textfield for user input?
Currently one only gets an general error while unzipping and it's impossible to determine that it's because the zip file was protected....

Analyze/warnings

Not critical obviously but always nice to have zero warnings in your project. When I analyze, I see 3 files with a few never-read warnings:

<root>/Pods/ZipArchive/ZipArchive.m:468:17: warning: Value stored to 'success' is never read
                success = NO;
                ^         ~~
<root>/Pods/ZipArchive/ZipArchive.m:478:17: warning: Value stored to 'success' is never read
                success = NO;
                ^         ~~
<root>/Pods/ZipArchive/ZipArchive.m:508:21: warning: Value stored to 'success' is never read
                    success = NO;
                    ^         ~~
<root>/Pods/ZipArchive/ZipArchive.m:524:21: warning: Value stored to 'success' is never read
                    success = NO;



<root>/Pods/ZipArchive/minizip/unzip.c:1107:9: warning: Value stored to 'lSeek' is never read
        lSeek+=file_info.size_file_comment - uSizeRead;
        ^      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<root>/Pods/ZipArchive/minizip/unzip.c:1110:9: warning: Value stored to 'lSeek' is never read
        lSeek+=file_info.size_file_comment;
        ^      ~~~~~~~~~~~~~~~~~~~~~~~~~~~
<root>/Pods/ZipArchive/minizip/unzip.c:1543:9: warning: Value stored to 'err' is never read
        err=UNZ_BADZIPFILE;
        ^   ~~~~~~~~~~~~~~


<root>/Pods/ZipArchive/minizip/zip.c:1037:7: warning: Value stored to 'err' is never read
      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)HeaderID,2);
      ^     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<root>/Pods/ZipArchive/minizip/zip.c:1038:7: warning: Value stored to 'err' is never read
      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)DataSize,2);
      ^     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<root>/Pods/ZipArchive/minizip/zip.c:1040:7: warning: Value stored to 'err' is never read
      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)UncompressedSize,8);
      ^     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<root>/Pods/ZipArchive/minizip/zip.c:1537:49: warning: Value stored to 'err' is never read
                                                err = ZIP_ERRNO;
                                                ^     ~~~~~~~~~
<root>/Pods/ZipArchive/minizip/zip.c:1682:9: warning: Value stored to 'p' is never read
        p += 8;
        ^    ~

Adding files to archive with newname is Case Insensitive

if I use addFileToZip:newname: to add two files named "Test" and "test", respectively, only one is added.
Identical problem with strings containing diacritics encoded differently: they are considered the same (insensitive diacritic comparison).
Ex:
[zip addFileToZip:path1 newname:"Test"]
[zip addFileToZip:path2 newname:"test"]

Deprecated warning for attributesOfItemAtPath

duplicate of google issue at: http://code.google.com/p/ziparchive/issues/detail?id=8

AES support

The latest version of minizip supports AES: https://github.com/nmoinvaz/minizip

Can ZipArchive add the support as well?

many value stored to success or err never used

Maybe a clean should be appreciated principaly in function:

• UnzipFileToMemory

UnzipOpenFile doesn't work

I have used ZipArchive to zip and unzip some file, but UnzipOpenFile returns nil.
Please help me on this.

ZipArchive* za = [[ZipArchive alloc] init];

                if([[NSFileManager defaultManager] fileExistsAtPath:zipFolder]) {
                    NSLog(@"File exists at path: %@", zipFolder);
                } else {
                    NSLog(@"File does not exists at path: %@", zipFolder);
                }

                if( [za UnzipOpenFile: zipFolder] ) {
                    if( [za UnzipFileTo:outputFolder overWrite:YES] != NO ) {
                        NSLog(@"Pics : unzip successfully");

                        [[NSNotificationCenter defaultCenter] postNotificationName:kNotificationArticleLoadedFromiCloud object:nil];
                    }
                    [za UnzipCloseFile];
                }

"direct.h" file not found

Can't extract under iPhone7.

Z_DATA_ERROR in arm64bit during inflate

Hi

IOS based code, ziparchive version 1.4.

Before migrating to 64bit (arm64) the code works great. After, no longer able to unzip files:

I am getting -3 (Z_DATA_ERROR) when this line is called
err=inflate(&pfile_in_zip_read_info->stream,flush);

        if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL))
          err = Z_DATA_ERROR;

(lldb) po pfile_in_zip_read_info->stream.msg
"invalid code lengths set"

This is works nicely until I migrate to 64bit on ios.

Using wrong password to test error case

Hi, great work Matt!

I had a question for you about unzipping with a password.
I am able to zip with a password, and unzip with the password without any problem.

I tried an error case using a wrong password to unzip. I expected to receive an indication that the unzip was unsuccessful, but I get a return of success. As expected, the zipped files are not actually unzipped (which is good), however, the directory now holds a bunch of zero byte files with the correct file names that were in the zip. Seems strange.

Is this expected, or should there be a return somewhere indicating an invalid password?

Thx!
Anthony

ZipArchive/minizip/unzip.c:613:9: Add explicit braces to avoid dangling else

ZipArchive.podspec need update

s.source = { :git => 'https://github.com/mattconnolly/ZipArchive.git', :tag => '1.4.0' }

need change

s.source = { :git => 'https://github.com/mattconnolly/ZipArchive.git', :tag => 'v1.4.0' }

?
error is
[!] /usr/bin/git fetch origin tags/1.4.0 2>&1

fatal: Couldn't find remote ref tags/1.4.0

fatal: The remote end hung up unexpectedly

Support unicode filenames

This might be a one line change. (At least it works for me this way.)

Change

NSString * strPath = [NSString stringWithCString:filename encoding:NSUTF8StringEncoding];

to

NSString * strPath = [NSString stringWithCString:filename encoding:NSUTF8StringEncoding];

on

https://github.com/mattconnolly/ZipArchive/blob/master/ZipArchive.m#L293