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use super::*;
use super::IndexEntry;
use crate::constants::*;
use std::default::Default;
pub trait ConstructionStage {}
pub struct Empty;
pub struct WithDigest;
pub struct WithSignature;
impl ConstructionStage for Empty {}
impl ConstructionStage for WithDigest {}
impl ConstructionStage for WithSignature {}
pub struct SignatureHeaderBuilder<T>
where
T: ConstructionStage,
{
entries: Vec<IndexEntry<IndexSignatureTag>>,
phantom: std::marker::PhantomData<T>,
}
impl SignatureHeaderBuilder<Empty> {
pub fn new() -> Self {
Self {
entries: Vec::with_capacity(10),
phantom: Default::default(),
}
}
}
impl<T> SignatureHeaderBuilder<T>
where
T: ConstructionStage,
{
pub fn build(mut self, signature_size: i32) -> Header<IndexSignatureTag> {
self.entries.insert(
0,
IndexEntry::new(
IndexSignatureTag::RPMSIGTAG_SIZE,
0i32,
IndexData::Int32(vec![signature_size]),
),
);
Header::<IndexSignatureTag>::from_entries(
self.entries,
IndexSignatureTag::HEADER_SIGNATURES,
)
}
}
impl SignatureHeaderBuilder<Empty> {
pub fn add_digest(
mut self,
digest_header_only: &str,
digest_header_and_archive: &[u8],
) -> SignatureHeaderBuilder<WithDigest> {
let offset = 0i32;
self.entries.push(IndexEntry::new(
IndexSignatureTag::RPMSIGTAG_MD5,
offset,
IndexData::Bin(digest_header_and_archive.to_vec()),
));
self.entries.push(IndexEntry::new(
IndexSignatureTag::RPMSIGTAG_SHA1,
offset,
IndexData::StringTag(digest_header_only.to_string()),
));
SignatureHeaderBuilder::<WithDigest> {
entries: self.entries,
phantom: Default::default(),
}
}
}
impl SignatureHeaderBuilder<WithDigest> {
pub fn add_signature(
mut self,
rsa_sig_header_only: &[u8],
rsa_sig_header_and_archive: &[u8],
) -> SignatureHeaderBuilder<WithSignature> {
let offset = 0i32;
self.entries.push(IndexEntry::new(
IndexSignatureTag::RPMSIGTAG_RSA,
offset,
IndexData::Bin(rsa_sig_header_only.to_vec()),
));
self.entries.push(IndexEntry::new(
IndexSignatureTag::RPMSIGTAG_PGP,
offset,
IndexData::Bin(rsa_sig_header_and_archive.to_vec()),
));
SignatureHeaderBuilder::<WithSignature> {
entries: self.entries,
phantom: Default::default(),
}
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn signature_builder() {
let builder = SignatureHeaderBuilder::<Empty>::new();
let rsa_sig_header_only = [0u8; 32];
let rsa_sig_header_and_archive = [0u8; 32];
let _digest_header_only = [0u8; 64];
let digest_header_and_archive = [0u8; 64];
let header = builder
.add_digest("", &digest_header_and_archive[..])
.add_signature(&rsa_sig_header_only[..], &rsa_sig_header_and_archive[..])
.build(32i32);
assert!(header
.find_entry_or_err(&IndexSignatureTag::RPMSIGTAG_RSA)
.is_ok());
assert!(header
.find_entry_or_err(&IndexSignatureTag::RPMSIGTAG_PGP)
.is_ok());
assert!(header
.find_entry_or_err(&IndexSignatureTag::RPMSIGTAG_MD5)
.is_ok());
assert!(header
.find_entry_or_err(&IndexSignatureTag::RPMSIGTAG_SHA1)
.is_ok());
}
}