SSZipArchive "failed to open zip file" -- url.path is not the solution - ios

Question

Edit 2:
I tried Zip from marmelroy (https://github.com/marmelroy/Zip) and it failed on the zip-file created witch ZipArchive too.
Then I created another zip-file with Zip and this one worked fine for unzipping.
There seems to be a problem with ZipArchive for me. I will use Zip instead and thats it for me ...
Thx for the answers !!
End edit 2.
I need to unzip certain files so I manually installed SSZipArchive.
Copied all 3 folders (SSZipArchive, minizip, aes) to project, added #import "ZipArchive.h" in my bridging.h and all builds nicely.
Edit:
Used Carthage as recommended, but same behavior.
End edit.
I use Xcode 8 / Swift 3
After a few tests with no unzipping any file, I created my own zip using SSZipArchive.
let file = "file.txt"
let text = "some text" //just a text
let dir = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first
let path = dir?.appendingPathComponent(file)
//writing
do {
try text.write(to: path!, atomically: false, encoding: String.Encoding.utf8)
}
catch {
print("Failed writing")
}
Here I print() the Documentsdirectory: ["file.txt"]
let zipPath = tempZipPath() //tempZipPath is taken from the SSZipArchiveExample except it uses DocumentDirectory instead of Cache...
print("zipPath: \(zipPath)")
print zipPath: /var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
let success = SSZipArchive.createZipFile(atPath: zipPath, withContentsOfDirectory: (dir?.absoluteString)!)
if success {
print("zipped")
} else {
print(" NOT zipped")
}
Again the Documentsdirectories entries: ["93428A1B-E5B6-434F-B049-632B7519B126.zip", "file.txt"]
// this is again taken from the original Example
guard let unzipPath = tempUnzipPath() else {
return
}
print("unzipPath: \(unzipPath)")
print unzipPath: /var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/E4FC7DE6-F21B-46D8-9953-DCBF86E2268E
Reading the entries of this new directory: []
let filePath = zipPath
var fileSize : UInt64 = 0
do {
let attr : NSDictionary? = try FileManager.default.attributesOfItem(atPath: filePath) as NSDictionary?
if let _attr = attr {
fileSize = _attr.fileSize();
print("fileSize: \(fileSize)")
}
} catch {
print("Error: \(error)")
}
this writes 22. I also tried to read the zip-file which works fine
From this part on I was desperate what to do
let url = URL(fileURLWithPath: zipPath)
print("url: \(url)")
print("url.path: \(url.path)")
print("url.absoluteString: \(url.absoluteString)")
print("url.absoluteURL: \(url.absoluteURL)")
print("url.absoluteURL.absoluteString: \(url.absoluteURL.absoluteString)")
The output of these lines look all good for me:
url:
file:///var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
url.path:
/var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
url.absoluteString:
file:///var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
url.absoluteURL:
file:///var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
url.absoluteURL.absoluteString:
file:///var/mobile/Containers/Data/Application/EB439A61-07B9-4910-BF28-03E85C50B292/Documents/93428A1B-E5B6-434F-B049-632B7519B126.zip
And then I tried them all (Strings of course. No url allowed)
var success2 = SSZipArchive.unzipFile(atPath: zipPath, toDestination: unzipPath)
if !success2 {
print("zipPath")
}
success2 = SSZipArchive.unzipFile(atPath: url.path, toDestination: unzipPath)
if !success2 {
print("url.path")
}
success2 = SSZipArchive.unzipFile(atPath: url.absoluteString, toDestination: unzipPath)
if !success2 {
print("url.absoluteString")
}
success2 = SSZipArchive.unzipFile(atPath: url.absoluteURL.path, toDestination: unzipPath)
if !success2 {
print("url.absoluteURL.path")
}
And it prints every line, so they all failed. At the end here comes the "long" way with unipFileAtPath. I tried this one too with zipPath, ...
All the same results.
do {
success2 = try SSZipArchive.unzipFileAtPath(url.path, toDestination: unzipPath, overwrite: true, password: nil, delegate: nil)
if !success2 {
return
}
} catch {
print("error \(error)")
print("error \(error.localizedDescription)")
}
error Error Domain=SSZipArchiveErrorDomain Code=-1 "failed to open zip
file" UserInfo={NSLocalizedDescription=failed to open zip file} error
failed to open zip file
Here the to func to get the path-strings. btw. I modified tempZipPath so returns an URL or an URL.path
but hey: I was desperate
func tempZipPath() -> String {
var path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
path += "/\(UUID().uuidString).zip"
return path
}
func tempUnzipPath() -> String? {
var path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
path += "/\(UUID().uuidString)"
let url = URL(fileURLWithPath: path)
do {
try FileManager.default.createDirectory(at: url, withIntermediateDirectories: true, attributes: nil)
} catch {
return nil
}
return url.path
}
Any suggestions? Is there something to consider manually installing SSZipArchive?
The tip "use .path instead of .absoluteString" didn't work for me as u can see above.
a desperate tartsigam

Answer 1

I had the problem, too. If you use url.path instead of url.absolutString, it works.
Thanks to vadian for the hint!

Answer 2

Before zip don't extract file and return false.
After put this in Build Settings / Apple CLang Prepocessing / Preprocessor Macros Debug e Release works here
GCC_PREPROCESSOR_DEFINITIONS: HAVE_INTTYPES_H HAVE_PKCRYPT HAVE_STDINT_H HAVE_WZAES HAVE_ZLIB MZ_ZIP_NO_SIGNING $(inherited)

Answer 3

In my case, using ObjC and manual installation, I forgot to Add the following GCC_PREPROCESSOR_DEFINITIONS:
$(inherited)
HAVE_INTTYPES_H
HAVE_PKCRYPT
HAVE_STDINT_H
HAVE_WZAES
HAVE_ZLIB
After adding these GCC_PREPROCESSOR_DEFINITIONS it worked as expected.