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Throws an error when trying to open password protected 7z files.

Hi, I want to know weather or not it is possible to store binary files (octet-stream) or blob directly to SevenZip?
I mean not file system, from variable to SevenZip

Hello! I try to create some kind of archiver with web interface. I want to get contents of archive and show it at web page.
Does your library allow you to get the entire output of the executed command? Or I need to monkey-patch console.log and get output of command from there? Thanx for answer!

I'm running the 'As a module' demo in web context.

hi,
7z-wasm can't extract the zip entry when the entry's path is "Doc_0/Signs/Signatures.xml".
other entries can be extracted ok.
is it related to that the entry path contains 'sign' or something?
very wierd.
when using 1.0.2, the error message is 'Permission denied'.
when using 1.1.0, the error message is :
{
"errno": 2,
"message": "FS error"
}
1.zip

I can't open file on browser. code is below. why not?

directory
C:/Users/user/Desktop/7zip
┣test.htm
┣7zz.es6.js
┗7zz,wasm.js

I'm trying to compile this project with latest emscripten's official docker.
I have applied patch and loaded the build-es6.env run emmake make -j -f makefile.emcc in docker, under Alone2 directory
then I got an error

../../../Windows/SystemInfo.cpp:21:10: fatal error: 'sys/auxv.h' file not found
   21 | #include <sys/auxv.h>
      |          ^~~~~~~~~~~~
1 error generated.

$ wget https://www.7-zip.org/a/7z1900-extra.7z
$ npx 7z-wasm x 7z1900-extra.7z

This fails with the following error message:

sigaction: signal type not supported: this is a no-op.
sigaction: signal type not supported: this is a no-op.

7-Zip (z) 21.03 beta (LE) : Copyright (c) 1999-2021 Igor Pavlov : 2021-07-20
 32-bit ILP32 locale=C.UTF-8 Threads:1

Scanning the drive for archives:
1 file, 929117 bytes (908 KiB)

Extracting archive: 7z1900-extra.7z
--
Path = 7z1900-extra.7z
Type = 7z
Physical Size = 929117
Headers Size = 532
Method = LZMA:22 BCJ2
Solid = +
Blocks = 2


ERROR: errno=6 : Resource temporarily unavailable

Archives with Errors: 1

sigaction: signal type not supported: this is a no-op.
sigaction: signal type not supported: this is a no-op.

Hello. Glory to Ukraine!

I made vue app and add 7z-wasm to project;

In App.vue

import SevenZip from "7z-wasm";
const sevenZip = await SevenZip();

In browser console see

App.vue:46 GET http://localhost:5173/node_modules/.vite/deps/7zz.wasm 404 (Not Found)

how to configure path to 7zz.wasm if I placed it to assets dir?

How hard would it be to upgrade to latest version? (i.e. the non-beta version)

Given a file that is only the contents:

import SevenZip from '7z-wasm';

(async (): Promise<void> => {
  const sevenZip = await SevenZip();
})();

it gives this error on the function call:

TS2349: This expression is not callable.
Type 'typeof import("<redacted>/node_modules/7z-wasm/index")' has no call signatures.

I'm on Node.js v16.17.0 and TypeScript v4.8.4.

I'm having issues with trying to extract large files out of an archive (e.g. around 2gb or so). Gives me a:
RangeError: Array buffer allocation failed) at Error

I'm wondering if it's got something to do with it being a 32bit build? Is it possible to compile it as 64-bit?

Hi,
In the README.md shows an example to decompress from file.

How can I decompress from memory (i.e from a blob or ByteArray) ?

Thanks,

异常压缩包.zip

7z-wasm e 异常压缩包.zip

The decompressed file name is displayed abnormally.

 7z e .\异常压缩包.zip

The decompressed file name is displayed normally.

Please help me, thank you very much!!!

Is it possible to use this library to compress strings

I would like to do something like this , but want to use 7z's LZMA2 to compress & decompress

Filenames that contain non-English characters (e.g. ä,é,è,ö ...) are not listed correctly.

When I run normal command line 7z, it works fine:
7z l Archive.7z

I get following output:

7-Zip [64] 17.04 : Copyright (c) 1999-2021 Igor Pavlov : 2017-08-28
p7zip Version 17.04 (locale=utf8,Utf16=on,HugeFiles=on,64 bits,8 CPUs LE)

Scanning the drive for archives:
1 file, 25043856 bytes (24 MiB)

Listing archive: Archive.7z

--
Path = Archive.7z
Type = 7z
Physical Size = 25043856
Headers Size = 250
Method = LZMA2:24
Solid = +
Blocks = 1

   Date      Time    Attr         Size   Compressed  Name
------------------- ----- ------------ ------------  ------------------------
2022-09-17 08:23:47 ....A      6104109     25043606  image-one.png
2022-09-17 08:22:45 ....A      4844990               imagè-thréê.png
2022-09-17 08:23:25 ....A      8346941               imäge-twö.png
2022-09-17 08:22:08 ....A      5759066               ìmágé-fòûr.png
------------------- ----- ------------ ------------  ------------------------

But when I run the 7z-wasm version:
npx 7z-wasm l Archive.7z

I get following output:

7-Zip (z) 22.01 (LE) : Copyright (c) 1999-2022 Igor Pavlov : 2022-07-15
 32-bit ILP32 locale=C.UTF-8 Threads:1

Scanning the drive for archives:
1 file, 25043856 bytes (24 MiB)

Listing archive: Archive.7z

--
Path = Archive.7z
Type = 7z
Physical Size = 25043856
Headers Size = 250
Method = LZMA2:24
Solid = +
Blocks = 1

   Date      Time    Attr         Size   Compressed  Name
------------------- ----- ------------ ------------  ------------------------
2022-09-17 08:23:47 ....A      6104109     25043606  image-one.png
2022-09-17 08:22:45 ....A      4844990               imagￃﾨ-thrￃﾩￃﾪ.png
2022-09-17 08:23:25 ....A      8346941               imￃﾤge-twￃﾶ.png
2022-09-17 08:22:08 ....A      5759066               ￃﾬmￃﾡgￃﾩ-fￃﾲￃﾻr.png
------------------- ----- ------------ ------------  ------------------------

I wonder if it has something to do with the locale? Is C.UTF-8 more restrictive? How can that be changed? Any ideas?

Hello, I don't know what the issue but I get good progress using your library (I created: https://extractify.zip/ which is open source now :) ),

I have the following code inside Worker and it work great to extract the files and show them in files list but I cannot read any file (except the archive file it self)

The following debug for reading specific file inside the archive:

Logs:

Code:

    async generateBlobUrl(file: iFile) {
        if (!this.sevenZip) return;
        file = typeof file === "string" ? JSON.parse(file) : file;

        this.sevenZip.FS.chdir("/");
        console.log("Directory content before extracting", this.sevenZip.FS.readdir("/"));

        // extract file from archive
        this.execute(['x', '-y', this.archiveName, file.path.substring(1)]);

        console.log("Directory content after extracting", this.sevenZip.FS.readdir('/'));

        console.log({
            file: file.path.substring(1),
            p: file.path
        });

        const stream = this.sevenZip.FS.open(file.path, 'r');
        const stat = this.sevenZip.FS.stat(file.path);
        const bufferLength = stat.size;
        const buffer = new Uint8Array(bufferLength);
        this.sevenZip.FS.read(stream, buffer, 0, bufferLength, 0);
        this.sevenZip.FS.close(stream);

        console.log({buffer});

        // const blob = new Blob([buffer], { type: mime.lookup(file.extension!) || "application/octet-stream" });
        // const blobUrl = URL.createObjectURL(blob);

        // console.log({blobUrl});

        return "blobUrl";
    }

The following debug for reading archive file (compressed file) inside the archive:

Logs:

Code:

    async generateBlobUrl(file: iFile) {
        if (!this.sevenZip) return;
        file = typeof file === "string" ? JSON.parse(file) : file;

        // override archive name as file name
        file.path = '/' + this.archiveName;

        this.sevenZip.FS.chdir("/");
        console.log("Directory content before extracting", this.sevenZip.FS.readdir("/"));

        // extract file from archive
        this.execute(['x', '-y', this.archiveName, file.path.substring(1)]);

        console.log("Directory content after extracting", this.sevenZip.FS.readdir('/'));

        console.log({
            file: file.path.substring(1),
            p: file.path
        });

        const stream = this.sevenZip.FS.open(file.path, 'r');
        const stat = this.sevenZip.FS.stat(file.path);
        const bufferLength = stat.size;
        const buffer = new Uint8Array(bufferLength);
        this.sevenZip.FS.read(stream, buffer, 0, bufferLength, 0);
        this.sevenZip.FS.close(stream);

        console.log({buffer});

        // const blob = new Blob([buffer], { type: mime.lookup(file.extension!) || "application/octet-stream" });
        // const blobUrl = URL.createObjectURL(blob);

        // console.log({blobUrl});

        return "blobUrl";
    }

While trying to extract some archives in the browser environment with the

sevenZip.callMain(["x", archiveName, "-oextracted"]);

command, 7zip will simply show the following errors:

ERROR: Cannot create folder
ERROR: Cannot open output file : errno=2 : Permission denied

This only seems to happen with some archive files.

Testing with

sevenZip.callMain(["t", archiveName]);

before extraction returns an Everything is Ok message from 7zip.

Setting permissions with

sevenZip.FS.chmod(archiveName, 0o777);
sevenZip.FS.chmod("/extracted", 0o777);

also seems to have no effect either.

Here are some examples of archives that can be extracted:
https://github.com/CTCaer/hekate/releases/download/v6.0.7/hekate_ctcaer_6.0.7_Nyx_1.5.6.zip
https://github.com/Atmosphere-NX/Atmosphere/releases/download/1.6.2/atmosphere-1.6.2-master-f7bf379cf%2Bhbl-2.4.4%2Bhbmenu-3.6.0.zip

Here are some exapmles of archives that cannot be extracted:
https://github.com/HamletDuFromage/aio-switch-updater/releases/download/2.23.2/aio-switch-updater.zip
https://github.com/ndeadly/MissionControl/releases/download/v0.10.0/MissionControl-0.10.0-master-38c9879.zip

What could be possibly causing these issues? Are these archives being created differently?

Hello. Glory to Ukraine!

I have

<input type='file' onchange='on7z' accept='.7z'>

import SevenZip from "7z-wasm";

cosnt on7z = async (e) => {
  const sevenZip = await SevenZip();
  // how to read e.target.file[0] ?
}

Can we use absolute path for files?
If I run the command:

npx 7z-wasm l archive.7z

which the working directory contains archive.7z and the command run successfully.
But if I run the command in a directory which not contains archive file and use the absolute path like:

npx 7z-wasm l /Users/username/Desktop/archive.7z

It says:

Scanning the drive for archives:

ERROR: errno=44 : No such file or directory
/Users/username/Desktop/archive.7z

exception thrown: 5406976

As I understand, wasmBinaryFile doesn't exported to outer world. Am I wrong and I missing some way to override it?

var wasmBinaryFile;
wasmBinaryFile = '/7zz.wasm';

on running npx 7z-wasm on cli getting error

TypeError: Failed to parse URL from <path>/node_modules/7z-wasm/7zz.wasm at Object.fetch (node:internal/deps/undici/undici:11457:11) { [cause]: TypeError [ERR_INVALID_URL]: Invalid URL

i'm using node v18.16