From 5d3d32ded672b67471d9d7c85ebbe691129cc51c Mon Sep 17 00:00:00 2001
From: Igor Tolmachev <me@igorek.dev>
Date: Mon, 1 Jul 2024 19:12:40 +0900
Subject: Add compression support (lzma and xz are broken)

---
 src/zip/file_driver.rs | 98 --------------------------------------------------
 1 file changed, 98 deletions(-)
 delete mode 100644 src/zip/file_driver.rs

(limited to 'src/zip/file_driver.rs')

diff --git a/src/zip/file_driver.rs b/src/zip/file_driver.rs
deleted file mode 100644
index 51075e4..0000000
--- a/src/zip/file_driver.rs
+++ /dev/null
@@ -1,98 +0,0 @@
-use crate::driver::FileDriver;
-use crate::zip::{ZipError, ZipFileInfo, ZipResult};
-use std::io::{
-    Error as IoError, ErrorKind as IoErrorKind, Read, Result as IoResult, Seek, SeekFrom, Write,
-};
-
-pub struct ZipFile<'d, Io> {
-    io: &'d mut Io,
-    info: &'d ZipFileInfo,
-
-    bounds: (u64, u64),
-    cursor: u64,
-}
-
-impl<'d, Io> FileDriver for ZipFile<'d, Io> {
-    type Io = Io;
-    type FileInfo = ZipFileInfo;
-
-    fn info(&self) -> &Self::FileInfo {
-        self.info
-    }
-}
-
-impl<'d, Io: Read + Seek> ZipFile<'d, Io> {
-    pub fn new(io: &'d mut Io, info: &'d ZipFileInfo) -> ZipResult<Self> {
-        io.seek(SeekFrom::Start(info.header_pointer))?;
-        let buf = {
-            let mut buf = [0; 30];
-            io.read(&mut buf)?;
-            buf
-        };
-        if u32::from_le_bytes(buf[..4].try_into().unwrap()) != 0x04034b50 {
-            return Err(ZipError::InvalidFileHeaderSignature.into());
-        }
-        let data_pointer = info.header_pointer
-            + 30
-            + u16::from_le_bytes(buf[26..28].try_into().unwrap()) as u64
-            + u16::from_le_bytes(buf[28..30].try_into().unwrap()) as u64;
-        io.seek(SeekFrom::Start(data_pointer))?;
-
-        Ok(Self {
-            io,
-            info,
-
-            bounds: (data_pointer, data_pointer + info.compressed_size),
-            cursor: data_pointer,
-        })
-    }
-}
-
-impl<'d, Io: Read> Read for ZipFile<'d, Io> {
-    fn read(&mut self, buf: &mut [u8]) -> IoResult<usize> {
-        let upper = buf.len().min((self.bounds.1 - self.cursor) as usize);
-        self.cursor += upper as u64;
-        self.io.read(&mut buf[..upper])
-    }
-}
-
-impl<'d, Io: Write> Write for ZipFile<'d, Io> {
-    fn write(&mut self, buf: &[u8]) -> IoResult<usize> {
-        todo!()
-    }
-
-    fn flush(&mut self) -> IoResult<()> {
-        todo!()
-    }
-}
-
-impl<'d, Io: Seek> Seek for ZipFile<'d, Io> {
-    fn seek(&mut self, pos: SeekFrom) -> IoResult<u64> {
-        self.cursor = match pos {
-            SeekFrom::Start(offset) => self.bounds.0 + offset,
-            SeekFrom::End(offset) => {
-                let cursor = self.bounds.1.saturating_add_signed(offset);
-                if cursor < self.bounds.0 {
-                    return Err(IoError::new(
-                        IoErrorKind::InvalidInput,
-                        ZipError::NegativeFileOffset,
-                    ));
-                }
-                cursor
-            }
-            SeekFrom::Current(offset) => {
-                let cursor = self.cursor.saturating_add_signed(offset);
-                if cursor < self.bounds.0 {
-                    return Err(IoError::new(
-                        IoErrorKind::InvalidInput,
-                        ZipError::NegativeFileOffset,
-                    ));
-                }
-                cursor
-            }
-        }
-        .min(self.bounds.1);
-
-        Ok(self.io.seek(SeekFrom::Start(self.cursor))? - self.bounds.0)
-    }
-}
-- 
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