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use std::error::Error;
use std::fmt::Display;
use std::io::Error as IoError;
pub type ZipResult<T> = Result<T, ZipError>;
#[derive(Debug)]
pub enum ZipError {
Io(IoError),
EocdrNotFound,
InvalidEOCDR64Signature,
InvalidFileHeaderSignature,
InvalidCDRSignature,
UnsupportedCompressionMethod(u16),
UnsupportedEncryptionMethod,
InvalidDate,
InvalidTime,
InvalidFileName,
InvalidExtraFields,
AesExtraFieldNotFound,
InvalidFileComment,
FileNotFound,
IncorrectPassword,
PasswordIsNotSpecified,
CompressedDataIsUnseekable,
EncryptedDataIsUnseekable,
}
impl From<IoError> for ZipError {
fn from(value: IoError) -> Self {
Self::Io(value)
}
}
impl PartialEq for ZipError {
fn eq(&self, other: &Self) -> bool {
match (self, other) {
(Self::Io(l0), Self::Io(r0)) => l0.kind() == r0.kind(),
(Self::UnsupportedCompressionMethod(l0), Self::UnsupportedCompressionMethod(r0)) => {
l0 == r0
}
_ => core::mem::discriminant(self) == core::mem::discriminant(other),
}
}
}
impl Eq for ZipError {}
impl Display for ZipError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Self::Io(error) => write!(f, "{}", error),
Self::EocdrNotFound => write!(f, "End of central directory record not found"),
Self::InvalidEOCDR64Signature => {
write!(
f,
"Invalid signature of zip64 end of central directory record"
)
}
Self::InvalidFileHeaderSignature => {
write!(f, "Invalid file header signature")
}
Self::InvalidCDRSignature => {
write!(f, "Invalid signature of central directory record")
}
Self::UnsupportedCompressionMethod(id) => {
writeln!(f, "Unsupported compression method {}", id)
}
Self::UnsupportedEncryptionMethod => {
writeln!(f, "Unsupported encryption method")
}
Self::InvalidDate => write!(f, "Invalid date"),
Self::InvalidTime => write!(f, "Invalid time"),
Self::InvalidFileName => write!(f, "Invalid file name"),
Self::InvalidExtraFields => write!(f, "Invalid extra fields"),
Self::AesExtraFieldNotFound => write!(f, "Aes extra field not found"),
Self::InvalidFileComment => write!(f, "Invalid file comment"),
Self::FileNotFound => write!(f, "File not found"),
Self::IncorrectPassword => write!(f, "Incorrect password"),
Self::PasswordIsNotSpecified => write!(f, "Password is not specified"),
Self::CompressedDataIsUnseekable => write!(f, "Compressed data is unseekable"),
Self::EncryptedDataIsUnseekable => write!(f, "Encrypted data is unseekable"),
}
}
}
impl Error for ZipError {}
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