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Fix potential crash in ChunkedFile #38

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merged 1 commit into from
Jun 15, 2023
Merged

Fix potential crash in ChunkedFile #38

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9 changes: 3 additions & 6 deletions Sources/MuxUploadSDK/InternalUtilities/ChunkedFile.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,9 @@ class ChunkedFile {
public func openFile(fileURL: URL) throws {
if fileHandle == nil {
do {
let fileSize = try readFileSize(url: fileURL)
guard let fileSize = try FileManager.default.attributesOfItem(atPath: fileURL.path)[FileAttributeKey.size] as? UInt64 else {
throw ChunkedFileError.invalidState("Cannot retrieve file size")
}
self._fileSize = fileSize

let handle = try FileHandle(forReadingFrom: fileURL)
Expand Down Expand Up @@ -103,11 +105,6 @@ class ChunkedFile {
return chunk
}

private func readFileSize(url: URL) throws -> UInt64 {
let fileAttr = try FileManager.default.attributesOfItem(atPath: url.path)
return fileAttr[FileAttributeKey.size] as! UInt64
}

/// Creates a ``ChunkedFile`` that wraps the file given by the URL. The file will be opened after calling ``openFile()``
init(chunkSize: Int) {
self.chunkSize = chunkSize
Expand Down