sevenz_rust2/
archive.rs

1#![allow(unused)]
2use crate::{folder::*, method_options::MethodOptions};
3use bit_set::BitSet;
4use nt_time::FileTime;
5use std::sync::Arc;
6
7pub(crate) const SIGNATURE_HEADER_SIZE: u64 = 32;
8pub(crate) const SEVEN_Z_SIGNATURE: &[u8] = &[b'7', b'z', 0xBC, 0xAF, 0x27, 0x1C];
9
10pub(crate) const K_END: u8 = 0x00;
11pub(crate) const K_HEADER: u8 = 0x01;
12pub(crate) const K_ARCHIVE_PROPERTIES: u8 = 0x02;
13pub(crate) const K_ADDITIONAL_STREAMS_INFO: u8 = 0x03;
14pub(crate) const K_MAIN_STREAMS_INFO: u8 = 0x04;
15pub(crate) const K_FILES_INFO: u8 = 0x05;
16pub(crate) const K_PACK_INFO: u8 = 0x06;
17pub(crate) const K_UNPACK_INFO: u8 = 0x07;
18pub(crate) const K_SUB_STREAMS_INFO: u8 = 0x08;
19pub(crate) const K_SIZE: u8 = 0x09;
20pub(crate) const K_CRC: u8 = 0x0A;
21pub(crate) const K_FOLDER: u8 = 0x0B;
22pub(crate) const K_CODERS_UNPACK_SIZE: u8 = 0x0C;
23pub(crate) const K_NUM_UNPACK_STREAM: u8 = 0x0D;
24pub(crate) const K_EMPTY_STREAM: u8 = 0x0E;
25pub(crate) const K_EMPTY_FILE: u8 = 0x0F;
26pub(crate) const K_ANTI: u8 = 0x10;
27pub(crate) const K_NAME: u8 = 0x11;
28pub(crate) const K_C_TIME: u8 = 0x12;
29pub(crate) const K_A_TIME: u8 = 0x13;
30pub(crate) const K_M_TIME: u8 = 0x14;
31pub(crate) const K_WIN_ATTRIBUTES: u8 = 0x15;
32pub(crate) const K_COMMENT: u8 = 0x16;
33pub(crate) const K_ENCODED_HEADER: u8 = 0x17;
34pub(crate) const K_START_POS: u8 = 0x18;
35pub(crate) const K_DUMMY: u8 = 0x19;
36
37#[derive(Debug, Default, Clone)]
38pub struct Archive {
39    /// Offset from beginning of file + SIGNATURE_HEADER_SIZE to packed streams.
40    pub pack_pos: u64,
41    pub pack_sizes: Vec<u64>,
42    pub pack_crcs_defined: BitSet,
43    pub pack_crcs: Vec<u64>,
44    pub folders: Vec<Folder>,
45    pub sub_streams_info: Option<SubStreamsInfo>,
46    pub files: Vec<SevenZArchiveEntry>,
47    pub stream_map: StreamMap,
48    pub is_solid: bool,
49}
50
51#[derive(Debug, Default, Clone)]
52pub struct SubStreamsInfo {
53    pub unpack_sizes: Vec<u64>,
54    pub has_crc: BitSet,
55    pub crcs: Vec<u64>,
56}
57
58#[derive(Debug, Default, Clone)]
59pub struct SevenZArchiveEntry {
60    pub name: String,
61    pub has_stream: bool,
62    pub is_directory: bool,
63    pub is_anti_item: bool,
64    pub has_creation_date: bool,
65    pub has_last_modified_date: bool,
66    pub has_access_date: bool,
67    pub creation_date: FileTime,
68    pub last_modified_date: FileTime,
69    pub access_date: FileTime,
70    pub has_windows_attributes: bool,
71    pub windows_attributes: u32,
72    pub has_crc: bool,
73    pub crc: u64,
74    pub compressed_crc: u64,
75    pub size: u64,
76    pub compressed_size: u64,
77    pub(crate) content_methods: Arc<Vec<SevenZMethodConfiguration>>,
78}
79
80impl SevenZArchiveEntry {
81    pub fn new() -> Self {
82        Self::default()
83    }
84
85    pub fn new_file(entry_name: &str) -> Self {
86        Self {
87            name: entry_name.to_string(),
88            has_stream: true,
89            is_directory: false,
90            ..Default::default()
91        }
92    }
93
94    pub fn new_folder(entry_name: &str) -> Self {
95        Self {
96            name: entry_name.to_string(),
97            has_stream: false,
98            is_directory: true,
99            ..Default::default()
100        }
101    }
102
103    pub fn from_path(path: impl AsRef<std::path::Path>, entry_name: String) -> Self {
104        let path = path.as_ref();
105        #[cfg(target_os = "windows")]
106        let entry_name = {
107            let mut name_bytes = entry_name.into_bytes();
108            for b in &mut name_bytes {
109                if *b == b'\\' {
110                    *b = b'/';
111                }
112            }
113            String::from_utf8(name_bytes).unwrap()
114        };
115        let mut entry = SevenZArchiveEntry {
116            name: entry_name,
117            has_stream: path.is_file(),
118            is_directory: path.is_dir(),
119            ..Default::default()
120        };
121
122        if let Ok(meta) = path.metadata() {
123            if let Ok(modified) = meta.modified() {
124                if let Ok(date) = modified.try_into() {
125                    entry.last_modified_date = date;
126                    entry.has_last_modified_date = entry.last_modified_date.to_raw() > 0;
127                }
128            }
129            if let Ok(date) = meta.created() {
130                if let Ok(date) = date.try_into() {
131                    entry.creation_date = date;
132                    entry.has_creation_date = entry.creation_date.to_raw() > 0;
133                }
134            }
135            if let Ok(date) = meta.accessed() {
136                if let Ok(date) = date.try_into() {
137                    entry.access_date = date;
138                    entry.has_access_date = entry.access_date.to_raw() > 0;
139                }
140            }
141        }
142        entry
143    }
144
145    pub fn name(&self) -> &str {
146        self.name.as_ref()
147    }
148
149    pub fn is_directory(&self) -> bool {
150        self.is_directory
151    }
152
153    pub fn has_stream(&self) -> bool {
154        self.has_stream
155    }
156
157    pub fn creation_date(&self) -> FileTime {
158        self.creation_date
159    }
160
161    pub fn last_modified_date(&self) -> FileTime {
162        self.last_modified_date
163    }
164
165    pub fn size(&self) -> u64 {
166        self.size
167    }
168
169    pub fn windows_attributes(&self) -> u32 {
170        self.windows_attributes
171    }
172
173    pub fn access_date(&self) -> FileTime {
174        self.access_date
175    }
176
177    pub fn is_anti_item(&self) -> bool {
178        self.is_anti_item
179    }
180}
181
182#[derive(Debug, Default)]
183pub struct SevenZMethodConfiguration {
184    pub method: SevenZMethod,
185    pub options: Option<MethodOptions>,
186}
187
188impl From<SevenZMethod> for SevenZMethodConfiguration {
189    fn from(value: SevenZMethod) -> Self {
190        Self::new(value)
191    }
192}
193
194impl Clone for SevenZMethodConfiguration {
195    fn clone(&self) -> Self {
196        Self {
197            method: self.method,
198            options: self.options.clone(),
199        }
200    }
201}
202
203impl SevenZMethodConfiguration {
204    pub fn new(method: SevenZMethod) -> Self {
205        Self {
206            method,
207            options: None,
208        }
209    }
210
211    pub fn with_options(mut self, options: MethodOptions) -> Self {
212        self.options = Some(options);
213        self
214    }
215}
216
217#[derive(Debug, Clone, Copy, Eq, PartialEq, Default, Hash)]
218pub struct SevenZMethod(&'static str, &'static [u8]);
219
220impl SevenZMethod {
221    pub const ID_COPY: &'static [u8] = &[0x00];
222
223    pub const ID_LZMA: &'static [u8] = &[0x03, 0x01, 0x01];
224    pub const ID_LZMA2: &'static [u8] = &[0x21];
225    pub const ID_ZSTD: &'static [u8] = &[4, 247, 17, 1];
226    pub const ID_DEFLATE: &'static [u8] = &[0x04, 0x01, 0x08];
227    pub const ID_DEFLATE64: &'static [u8] = &[0x04, 0x01, 0x09];
228
229    pub const ID_BCJ_X86: &'static [u8] = &[0x03, 0x03, 0x01, 0x03];
230    pub const ID_BCJ_PPC: &'static [u8] = &[0x03, 0x03, 0x02, 0x05];
231    pub const ID_BCJ_IA64: &'static [u8] = &[0x03, 0x03, 0x04, 0x01];
232    pub const ID_BCJ_ARM: &'static [u8] = &[0x03, 0x03, 0x05, 0x01];
233    pub const ID_BCJ_ARM_THUMB: &'static [u8] = &[0x03, 0x03, 0x07, 0x01];
234    pub const ID_BCJ_SPARC: &'static [u8] = &[0x03, 0x03, 0x08, 0x05];
235    pub const ID_DELTA: &'static [u8] = &[0x03];
236    pub const ID_BZIP2: &'static [u8] = &[0x04, 0x02, 0x02];
237    pub const ID_AES256SHA256: &'static [u8] = &[0x06, 0xf1, 0x07, 0x01];
238    pub const ID_BCJ2: &'static [u8] = &[0x03, 0x03, 0x01, 0x1B];
239    /// no compression
240    pub const COPY: SevenZMethod = Self("COPY", Self::ID_COPY);
241
242    pub const LZMA: Self = Self("LZMA", Self::ID_LZMA);
243    pub const LZMA2: Self = Self("LZMA2", Self::ID_LZMA2);
244    pub const ZSTD: Self = Self("ZSTD", Self::ID_ZSTD);
245
246    pub const DEFLATE: Self = Self("DEFLATE", Self::ID_DEFLATE);
247    pub const DEFLATE64: Self = Self("DEFLATE64", Self::ID_DEFLATE64);
248
249    pub const BZIP2: Self = Self("BZIP2", Self::ID_BZIP2);
250    pub const AES256SHA256: Self = Self("AES256SHA256", Self::ID_AES256SHA256);
251
252    pub const BCJ_X86_FILTER: Self = Self("BCJ_X86", Self::ID_BCJ_X86);
253    pub const BCJ_PPC_FILTER: Self = Self("BCJ_PPC", Self::ID_BCJ_PPC);
254    pub const BCJ_IA64_FILTER: Self = Self("BCJ_IA64", Self::ID_BCJ_IA64);
255    pub const BCJ_ARM_FILTER: Self = Self("BCJ_ARM", Self::ID_BCJ_ARM);
256    pub const BCJ_ARM_THUMB_FILTER: Self = Self("BCJ_ARM_THUMB", Self::ID_BCJ_ARM_THUMB);
257    pub const BCJ_SPARC_FILTER: Self = Self("BCJ_SPARC", Self::ID_BCJ_SPARC);
258    pub const DELTA_FILTER: Self = Self("DELTA", Self::ID_DELTA);
259    pub const BCJ2_FILTER: Self = Self("BCJ2", Self::ID_BCJ2);
260
261    const METHODS: &'static [&'static SevenZMethod] = &[
262        &Self::COPY,
263        &Self::ZSTD,
264        &Self::LZMA,
265        &Self::LZMA2,
266        &Self::DEFLATE,
267        &Self::DEFLATE64,
268        &Self::BZIP2,
269        &Self::AES256SHA256,
270        &Self::BCJ_X86_FILTER,
271        &Self::BCJ_PPC_FILTER,
272        &Self::BCJ_IA64_FILTER,
273        &Self::BCJ_ARM_FILTER,
274        &Self::BCJ_ARM_THUMB_FILTER,
275        &Self::BCJ_SPARC_FILTER,
276        &Self::DELTA_FILTER,
277        &Self::BCJ2_FILTER,
278    ];
279
280    #[inline]
281    pub const fn name(&self) -> &'static str {
282        self.0
283    }
284
285    #[inline]
286    pub const fn id(&self) -> &'static [u8] {
287        self.1
288    }
289
290    #[inline]
291    pub fn by_id(id: &[u8]) -> Option<Self> {
292        Self::METHODS
293            .iter()
294            .find(|item| item.id() == id)
295            .cloned()
296            .cloned()
297    }
298}
299
300#[derive(Debug, Default, Clone)]
301pub struct StreamMap {
302    pub folder_first_pack_stream_index: Vec<usize>,
303    pub pack_stream_offsets: Vec<u64>,
304    pub folder_first_file_index: Vec<usize>,
305    pub file_folder_index: Vec<Option<usize>>,
306}
307
308#[derive(Debug, Clone, Copy)]
309pub(crate) struct StartHeader {
310    pub(crate) next_header_offset: u64,
311    pub(crate) next_header_size: u64,
312    pub(crate) next_header_crc: u64,
313}
sevenz_rust2/archive.rs

sevenz_rust2/
archive.rs
