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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2024 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
//
//===----------------------------------------------------------------------===//
#if FOUNDATION_FRAMEWORK
internal import _ForSwiftFoundation
#endif
#if canImport(Darwin)
import Darwin
#elseif os(Android)
import Bionic
#elseif canImport(Glibc)
import Glibc
#elseif canImport(Musl)
import Musl
#elseif os(Windows)
import CRT
import WinSDK
#elseif os(WASI)
import WASILibc
#endif
extension CocoaError.Code {
fileprivate init(fileErrno: Int32, reading: Bool) {
self = if reading {
switch fileErrno {
case EFBIG: .fileReadTooLarge
case ENOENT: .fileReadNoSuchFile
case EPERM, EACCES: .fileReadNoPermission
case ENAMETOOLONG: .fileReadInvalidFileName
default: .fileReadUnknown
}
} else {
switch fileErrno {
case ENOENT: .fileNoSuchFile
case EPERM, EACCES: .fileWriteNoPermission
case ENAMETOOLONG: .fileWriteInvalidFileName
#if !os(Windows)
case EDQUOT: .fileWriteOutOfSpace
#endif
case ENOSPC: .fileWriteOutOfSpace
case EROFS: .fileWriteVolumeReadOnly
case EEXIST: .fileWriteFileExists
default: .fileWriteUnknown
}
}
}
}
extension Dictionary<String, AnyHashable> {
fileprivate func addingUserInfo(forPath path: String) -> Self {
var dict = self
dict[NSFilePathErrorKey] = path
// Use the failable approach here bcause this could be an Error for a malformed path
dict[NSURLErrorKey] = URL(_fileManagerFailableFileURLWithPath: path)
return dict
}
fileprivate static func userInfo(forPath path: String) -> Self {
Self().addingUserInfo(forPath: path)
}
fileprivate func addingUserInfo(forURL url: URL) -> Self {
assert(url.isFileURL)
var dict = self
dict[NSURLErrorKey] = url
dict[NSFilePathErrorKey] = url.path(percentEncoded: false)
return dict
}
fileprivate static func userInfo(forURL url: URL) -> Self {
Self().addingUserInfo(forURL: url)
}
}
extension CocoaError {
// MARK: Error Creation with CocoaError.Code
static func errorWithFilePath(_ code: CocoaError.Code, _ path: String) -> CocoaError {
CocoaError(code, userInfo: .userInfo(forPath: path))
}
static func errorWithFilePath(_ code: CocoaError.Code, _ url: URL) -> CocoaError {
CocoaError(code, userInfo: .userInfo(forURL: url))
}
// MARK: Error Creation with errno
private static func _errorWithErrno(_ errno: Int32, reading: Bool, variant: String?, userInfo: [String : AnyHashable]) -> CocoaError {
var userInfo = userInfo
// (130280235) POSIXError.Code does not have a case for EOPNOTSUPP
if errno != EOPNOTSUPP {
guard let code = POSIXError.Code(rawValue: errno) else {
fatalError("Invalid posix errno \(errno)")
}
userInfo[NSUnderlyingErrorKey] = POSIXError(code)
}
if let variant {
userInfo[NSUserStringVariantErrorKey] = [variant]
}
return CocoaError(Code(fileErrno: errno, reading: reading), userInfo: userInfo)
}
static func errorWithFilePath(_ pathOrURL: PathOrURL, errno: Int32, reading: Bool, variant: String? = nil, additionalUserInfo: [String : AnyHashable] = [:]) -> CocoaError {
switch pathOrURL {
case .path(let path):
return Self.errorWithFilePath(path, errno: errno, reading: reading, variant: variant, additionalUserInfo: additionalUserInfo)
case .url(let url):
return Self.errorWithFilePath(url, errno: errno, reading: reading, variant: variant, additionalUserInfo: additionalUserInfo)
}
}
static func errorWithFilePath(_ path: String, errno: Int32, reading: Bool, variant: String? = nil, additionalUserInfo: [String : AnyHashable] = [:]) -> CocoaError {
Self._errorWithErrno(
errno,
reading: reading,
variant: variant,
userInfo: additionalUserInfo.addingUserInfo(forPath: path)
)
}
static func errorWithFilePath(_ url: URL, errno: Int32, reading: Bool, variant: String? = nil, additionalUserInfo: [String : AnyHashable] = [:]) -> CocoaError {
Self._errorWithErrno(
errno,
reading: reading,
variant: variant,
userInfo: additionalUserInfo.addingUserInfo(forURL: url)
)
}
static func errorWithFilePath(_ code: CocoaError.Code, _ path: String, variant: String? = nil, userInfo: [String : AnyHashable] = [:]) -> CocoaError {
var info: [String:AnyHashable] = userInfo.addingUserInfo(forPath: path)
if let variant {
info[NSUserStringVariantErrorKey] = [variant]
}
return CocoaError(code, userInfo: info)
}
#if os(Windows)
static func errorWithFilePath(_ path: PathOrURL, win32 dwError: DWORD, reading: Bool, variant: String? = nil, userInfo: [String : AnyHashable] = [:]) -> CocoaError {
switch path {
case let .path(path):
return Self.errorWithFilePath(path, win32: dwError, reading: reading, variant: variant, userInfo: userInfo.addingUserInfo(forPath: path))
case let .url(url):
return Self.errorWithFilePath(url.withUnsafeFileSystemRepresentation { String(cString: $0!) }, win32: dwError, reading: reading, variant: variant, userInfo: userInfo.addingUserInfo(forURL: url))
}
}
static func errorWithFilePath(_ path: String? = nil, win32 dwError: DWORD, reading: Bool, variant: String? = nil, userInfo: [String : AnyHashable] = [:]) -> CocoaError {
let code: CocoaError.Code = switch (reading, dwError) {
case (true, ERROR_FILE_NOT_FOUND), (true, ERROR_PATH_NOT_FOUND):
// Windows will return ERROR_FILE_NOT_FOUND or ERROR_PATH_NOT_FOUND
// for empty paths.
(path?.isEmpty ?? false) ? .fileReadInvalidFileName : .fileReadNoSuchFile
case (true, ERROR_ACCESS_DENIED): .fileReadNoPermission
case (true, ERROR_INVALID_ACCESS): .fileReadNoPermission
case (true, ERROR_INVALID_DRIVE): .fileReadNoSuchFile
case (true, ERROR_SHARING_VIOLATION): .fileReadNoPermission
case (true, ERROR_INVALID_NAME): .fileReadInvalidFileName
case (true, ERROR_LABEL_TOO_LONG): .fileReadInvalidFileName
case (true, ERROR_BAD_PATHNAME): .fileReadInvalidFileName
case (true, ERROR_FILENAME_EXCED_RANGE): .fileReadInvalidFileName
case (true, ERROR_DIRECTORY): .fileReadInvalidFileName
case (true, _): .fileReadUnknown
case (false, ERROR_FILE_NOT_FOUND), (false, ERROR_PATH_NOT_FOUND):
// Windows will return ERROR_FILE_NOT_FOUND or ERROR_PATH_NOT_FOUND
// for empty paths.
(path?.isEmpty ?? false) ? .fileWriteInvalidFileName : .fileNoSuchFile
case (false, ERROR_ACCESS_DENIED): .fileWriteNoPermission
case (false, ERROR_INVALID_ACCESS): .fileWriteNoPermission
case (false, ERROR_INVALID_DRIVE): .fileNoSuchFile
case (false, ERROR_WRITE_FAULT): .fileWriteVolumeReadOnly
case (false, ERROR_SHARING_VIOLATION): .fileWriteNoPermission
case (false, ERROR_FILE_EXISTS): .fileWriteFileExists
case (false, ERROR_DISK_FULL): .fileWriteOutOfSpace
case (false, ERROR_INVALID_NAME): .fileWriteInvalidFileName
case (false, ERROR_LABEL_TOO_LONG): .fileWriteInvalidFileName
case (false, ERROR_BAD_PATHNAME): .fileWriteInvalidFileName
case (false, ERROR_ALREADY_EXISTS): .fileWriteFileExists
case (false, ERROR_FILENAME_EXCED_RANGE): .fileWriteInvalidFileName
case (false, ERROR_DIRECTORY): .fileWriteInvalidFileName
case (false, ERROR_DISK_RESOURCES_EXHAUSTED): .fileWriteOutOfSpace
case (false, _): .fileWriteUnknown
}
var info: [String : AnyHashable] = userInfo
info[NSUnderlyingErrorKey] = Win32Error(dwError)
if let path, info[NSFilePathErrorKey] == nil {
info[NSFilePathErrorKey] = path
}
if let variant {
info[NSUserStringVariantErrorKey] = [variant]
}
return CocoaError(code, userInfo: info)
}
#endif
static func errorWithFilePath(_ path: String? = nil, osStatus: Int, reading: Bool, variant: String? = nil) -> CocoaError {
// Do more or less what _NSErrorWithFilePathAndErrno() does, except for OSStatus values
let errorCode: CocoaError.Code = switch (reading, osStatus) {
case (true, -43 /*fnfErr*/), (true, -120 /*dirNFErr*/): .fileReadNoSuchFile
case (true, -5000 /*afpAccessDenied*/): .fileReadNoPermission
case (true, _): .fileReadUnknown
case (false, -34 /*dskFulErr*/), (false, -1425 /*errFSQuotaExceeded*/): .fileWriteOutOfSpace
case (false, -45 /*fLckdErr*/), (false, -5000 /*afpAccessDenied*/): .fileWriteNoPermission
case (false, _): .fileWriteUnknown
}
#if FOUNDATION_FRAMEWORK
var userInfo: [String : AnyHashable] = [
NSUnderlyingErrorKey : NSError(domain: NSOSStatusErrorDomain, code: osStatus)
]
#else
var userInfo: [String : AnyHashable] = [:]
#endif
if let path {
userInfo[NSFilePathErrorKey] = path
}
if let variant {
userInfo[NSUserStringVariantErrorKey] = [variant]
}
return CocoaError(errorCode, userInfo: userInfo)
}
}
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