JuliaIO · nhz2 · Sep 1, 2024 · Jul 21, 2024 · Jul 21, 2024 · Sep 1, 2024
diff --git a/Project.toml b/Project.toml
@@ -5,6 +5,7 @@ version = "2.2.0"
 
 [deps]
 ArgCheck = "dce04be8-c92d-5529-be00-80e4d2c0e197"
+CodecInflate64 = "6309b1aa-fc58-479c-8956-599a07234577"
 CodecZlib = "944b1d66-785c-5afd-91f1-9de20f533193"
 InputBuffers = "0c81fc1b-5583-44fc-8770-48be1e1cca08"
 PrecompileTools = "aea7be01-6a6a-4083-8856-8a6e6704d82a"
@@ -13,6 +14,7 @@ Zlib_jll = "83775a58-1f1d-513f-b197-d71354ab007a"
 
 [compat]
 ArgCheck = "2"
+CodecInflate64 = "0.1"
 CodecZlib = "0.7"
 InputBuffers = "1"
 PrecompileTools = "1"

diff --git a/README.md b/README.md
@@ -31,6 +31,8 @@ The central directory makes it fast to read just one random entry out of a very
 
 When writing it is important to close the writer so the central directory gets written out.
 
+More details on the file format can be found at https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT
+
 ### Reading Zip archives
 
 Archives can be read from any `AbstractVector{UInt8}` containing the data of a zip archive.
@@ -85,14 +87,20 @@ ZipWriter(filename) do w
 end
 ```
 
+### Supported Compression Methods
+
+| Compression Method | Reading | Writing |
+|--------------------|---------|---------|
+| 0 - Store (none)   | Yes     | Yes     |
+| 8 - Deflate        | Yes     | Yes     |
+| 9 - Deflate64      | Yes     | No      |
 
 ### Limitations
 
 1. Cannot directly extract all files in an archive and write those files to disk.
 1. Ignores time stamps.
 1. Cannot write an archive fully in streaming mode. See https://github.com/madler/zipflow if you need this functionality.
 1. Encryption and decryption not supported.
-1. Only deflated and uncompressed data are supported. There is no support for bzip2 or zstd.
 1. Multi disk archives not supported.
 1. Cannot recover data from a corrupted archive. Especially if the end of the archive is corrupted.
 

diff --git a/src/ZipArchives.jl b/src/ZipArchives.jl
@@ -47,6 +47,7 @@ end
 module ZipArchives
 
 using CodecZlib: DeflateCompressorStream, DeflateDecompressorStream, DeflateCompressor
+using CodecInflate64: Deflate64DecompressorStream
 using TranscodingStreams: TranscodingStreams, TranscodingStream, Noop, NoopStream
 using ArgCheck: @argcheck
 using Zlib_jll: Zlib_jll

diff --git a/src/constants.jl b/src/constants.jl
@@ -4,6 +4,9 @@ const Store = UInt16(0)
 "Deflate compression method"
 const Deflate = UInt16(8)
 
+"Deflate64 compression method"
+const Deflate64 = UInt16(9)
+
 #=
 see https://github.com/madler/zipflow/blob/2bef2123ebe519c17b18d2d0c3c71065088de952/zipflow.c#L214
 =#

diff --git a/src/reader.jl b/src/reader.jl
@@ -104,7 +104,7 @@ Return the compression method used for entry `i`.
 
 See https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT for a current list of methods.
 
-Only Store(0x0000) and Deflate(0x0008) supported for now.
+Only Store(0), Deflate(8), and Deflate64(9) are supported for now.
 
 Note: if the zip file was corrupted, this might be wrong.
 """
@@ -774,8 +774,8 @@ end
 function zip_openentry(r::ZipReader, i::Int)
     compressed_size::Int64 = zip_compressed_size(r, i)
     method = zip_compression_method(r, i)
-    if method != Store && method != Deflate
-        throw(ArgumentError("invalid compression method: $(method). Only Store(0) and Deflate(8) supported for now"))
+    if method != Store && method != Deflate && method != Deflate64
+        throw(ArgumentError("invalid compression method: $(method). Only Store(0), Deflate(8), and Deflate64(9) supported for now"))
     end
     entry_data_offset = zip_entry_data_offset(r, i)
 
@@ -792,6 +792,8 @@ function zip_openentry(r::ZipReader, i::Int)
         return base_io
     elseif method == Deflate
         return DeflateDecompressorStream(base_io)
+    elseif method == Deflate64
+        return Deflate64DecompressorStream(base_io)
     else
         # should throw and ArgumentError before this
         error("unreachable") 

diff --git a/test/Artifacts.toml b/test/Artifacts.toml
@@ -1,6 +1,6 @@
 [fixture]
-git-tree-sha1 = "6ab9957b72056a0c388b056305a24d9742cfb840"
+git-tree-sha1 = "ed34b433321060f64bbdbda044851336788b9af6"
 
     [[fixture.download]]
-    url = "https://github.com/JuliaIO/ZipArchives.jl/releases/download/v0.2.1/fixture.tar.gz"
-    sha256 = "a0505b18c35455b7163060355401ed722b9fdcd177bf2f93ab5e696f758d9507"
+    sha256 = "99a9bb1d9cba1fae77fd7be224b654da1f247815845ef4ac682a546e8dc70ceb"
+    url = "https://github.com/JuliaIO/ZipArchives.jl/releases/download/v2.1.6/fixture.tar.gz"
diff --git a/test/Fixture-README.md b/test/Fixture-README.md
@@ -16,7 +16,7 @@ Add the file to the "fixture" directory, and a description to this file.
 Then run
 ```julia
 # This is the url that the artifact will be available from:
-url_to_upload_to = "https://github.com/medyan-dev/ZipArchives.jl/releases/download/v0.2.1/fixture.tar.gz"
+url_to_upload_to = "https://github.com/medyan-dev/ZipArchives.jl/releases/download/v2.1.6/fixture.tar.gz"
 # This is the path to the Artifacts.toml we will manipulate
 artifact_toml = "Artifacts.toml"
 fixture_hash = create_artifact() do artifact_dir
@@ -30,27 +30,49 @@ bind_artifact!(artifact_toml, "fixture", fixture_hash; force=true,
 
 Finally, upload the new "fixture.tar.gz" to `url_to_upload_to`
 
-## `win11-excel.xlsx`
-Small excel file created on windows 11 in microsoft Excel version 2305.
+## `dotnet-deflate64.zip`
+This file is downloaded from https://github.com/dotnet/runtime-assets/blob/95277f38e68b66f1b48600d90d456c32c9ae0fa2/src/System.IO.Compression.TestData/ZipTestData/compat/deflate64.zip
+
+## `leftpad-core_2.13-0.1.11.jar`
+Example jar file from https://mvnrepository.com/artifact/io.github.asakaev/leftpad-core_2.13/0.1.11
+
+## `ubuntu22-7zip.zip`
+Created with 7zip version 22.01 (x64)
+
+## `ubuntu22-files.zip`
+Created with default ubuntu files program
+
+## `ubuntu22-infozip.zip`
+Small zip file created with ubuntu22 Info-ZIP Zip 3.0
+
+## `ubuntu22-old7zip.zip`
+Created with 7zip version 16.02 p7zip 16.02
+
+## `win11-7zip.zip`
+Small zip file created with windows 11 7Zip 22.01
+
+## `win11-deflate64.zip`
+Large zip file created with windows 11 file explorer.
+Designed to test the deflate64 decompressor.
 
 ## `win11-excel.ods`
 Small OpenDocument Spreadsheet file created on windows 11 in microsoft Excel version 2305.
 
-## `win11-libreoffice.ods`
-Small OpenDocument Spreadsheet file created on windows 11 in LibreOffice Calc 7.5
+## `win11-excel.xlsx`
+Small excel file created on windows 11 in microsoft Excel version 2305.
 
 ## `win11-explorer.zip`
 Small zip file created with windows 11 file explorer
 
 ## `win11-infozip.zip`
 Small zip file created with windows 11 Info-ZIP Zip 3.0
 
-## `win11-7zip.zip`
-Small zip file created with windows 11 7Zip 22.01
-
 ## `win11-julia-p7zip.zip`
 Small zip file created with windows 11 p7zip_jll 17.4.0+0
 
+## `win11-libreoffice.ods`
+Small OpenDocument Spreadsheet file created on windows 11 in LibreOffice Calc 7.5
+
 ## `win11-powerpoint.odp`
 Small odp file created on windows 11 in microsoft PowerPoint version 2305
 
@@ -60,17 +82,5 @@ Small pptx file created on windows 11 in microsoft PowerPoint version 2305
 ## `ZipArchives.jl-main.zip`
 Zip file downloaded from a github on 20 JUN 2023
 
-## `leftpad-core_2.13-0.1.11.jar`
-Example jar file from https://mvnrepository.com/artifact/io.github.asakaev/leftpad-core_2.13/0.1.11
-
-## `ubuntu22-files.zip`
-Created with default ubuntu files program
-
-## `ubuntu22-7zip.zip`
-Created with 7zip version 22.01 (x64)
-
-## `ubuntu22-old7zip.zip`
-Created with 7zip version 16.02 p7zip 16.02
-
-## `ubuntu22-infozip.zip`
-Small zip file created with ubuntu22 Info-ZIP Zip 3.0
+## `zipfile-deflate64.zip`
+Test file from https://github.com/brianhelba/zipfile-deflate64/blob/beec33184da6da4697a1994c0ac4c64cef8cff50/tests/data/deflate64.zip
diff --git a/test/Project.toml b/test/Project.toml
@@ -9,6 +9,7 @@ OffsetArrays = "6fe1bfb0-de20-5000-8ca7-80f57d26f881"
 Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
 PythonCall = "6099a3de-0909-46bc-b1f4-468b9a2dfc0d"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+SHA = "ea8e919c-243c-51af-8825-aaa63cd721ce"
 Setfield = "efcf1570-3423-57d1-acb7-fd33fddbac46"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 TranscodingStreams = "3bb67fe8-82b1-5028-8e26-92a6c54297fa"

diff --git a/test/test_reader.jl b/test/test_reader.jl
@@ -4,6 +4,7 @@ using Base64: base64decode
 using Setfield: @set
 using p7zip_jll: p7zip_jll
 using OffsetArrays: Origin
+using SHA: sha256
 
 @testset "find_end_of_central_directory_record unit tests" begin
     find_eocd = ZipArchives.find_end_of_central_directory_record
@@ -149,8 +150,8 @@ end
     data_b64 = "UEsDBD8AAgAOAHJb0FaLksVmIgAAABAAAAAJAAAAbHptYV9kYXRhCQQFAF0AAIAAADoaCWd+rnMR0beE5IbQKkMGbV//6/YgAFBLAQI/AD8AAgAOAHJb0FaLksVmIgAAABAAAAAJAAAAAAAAAAAAAACAAQAAAABsem1hX2RhdGFQSwUGAAAAAAEAAQA3AAAASQAAAAAA"
     data = base64decode(data_b64)
     r = ZipReader(data)
-    @test_throws ArgumentError("invalid compression method: 14. Only Store(0) and Deflate(8) supported for now") zip_test_entry(r, 1)
-    @test_throws ArgumentError("invalid compression method: 14. Only Store(0) and Deflate(8) supported for now") zip_openentry(r, 1)
+    @test_throws ArgumentError("invalid compression method: 14. Only Store(0), Deflate(8), and Deflate64(9) supported for now") zip_test_entry(r, 1)
+    @test_throws ArgumentError("invalid compression method: 14. Only Store(0), Deflate(8), and Deflate64(9) supported for now") zip_openentry(r, 1)
     @test zip_iscompressed(r, 1)
     @test zip_names(r) == ["lzma_data"]
     @test zip_compression_method(r, 1) === 0x000e
@@ -233,8 +234,9 @@ end
                 if zip_isdir(r, i)
                     @test isdir(joinpath(tmpout,name))
                 else
-                    entry_data = zip_readentry(r, i)
-                    @test read(joinpath(tmpout,name)) == entry_data
+                    sevenziphash = open(sha256, joinpath(tmpout,name))
+                    ziphash = zip_openentry(sha256, r, i)
+                    @test sevenziphash == ziphash
                 end
             end
         end