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Simon Bruder 2021-06-23 21:23:46 +02:00
commit 0c1d7156db
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use flake

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# Rust
/backend/target/
/backend/pkg/
# Nix
/result*

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The MIT License
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# Password Hash Self-Service
A simple web app for users to generate password hashes
to be used in services where passwords are set “by hand”.
It currently supports SHA512-crypt and bcrypt hashes.
## License
This project is dual-licensed under the Apache 2.0 and MIT licenses. See
LICENSE-APACHE and LICENSE-MIT for details.

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import init, { hash_bcrypt, hash_sha512crypt } from "./backend/pkg/password_self_service.js"
function displayHash(hash) {
document.getElementById("hash").innerText = hash
document.getElementById("hash-container").classList.add("done")
}
function getHashSetup(formData) {
let setup = {
password: formData.get("password"),
hashType: formData.get("hash-type"),
privateOptions: {},
}
switch (setup.hashType) {
case "bcrypt":
setup.privateOptions.cost = formData.get("bcrypt-cost")
break
case "sha512crypt":
setup.privateOptions.rounds = formData.get("sha512crypt-rounds")
break
default:
console.warn("Unknown hash type " + setup.hashType + ", not setting private options")
}
return setup
}
// Returns function that accepts two arguments: a password and an object of
// private options for the hasher.
function getHasher(hashType) {
switch (hashType) {
case "bcrypt":
return (password, { cost }) => hash_bcrypt(password, cost)
case "sha512crypt":
return (password, { rounds }) => hash_sha512crypt(password, rounds)
default:
throw Error("Invalid hash type specified: " + hashType)
}
}
(async () => {
await init()
document.getElementById("advanced-options").addEventListener("change", e => {
if (e.target.checked) {
document.body.classList.add("advanced")
} else {
document.body.classList.remove("advanced")
}
})
document.getElementById("generate").addEventListener("click", e => {
e.target.disabled = true
const buttonText = e.target.innerText
e.target.innerText = "Calculating hash…"
const formData = new FormData(document.getElementById("hash-setup"))
const hashSetup = getHashSetup(formData)
console.debug("Hash type:", hashSetup.hashType, "Private options:", hashSetup.privateOptions)
const hasher = getHasher(hashSetup.hashType)
displayHash(hasher(hashSetup.password, hashSetup.privateOptions))
e.target.innerText = buttonText
e.target.disabled = false
})
})()

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version = "0.2.74"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d7cff876b8f18eed75a66cf49b65e7f967cb354a7aa16003fb55dbfd25b44b4f"

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[package]
name = "password-hash-self-service-backend"
version = "0.0.0"
authors = ["Simon Bruder <simon@sbruder.de>"]
license = "MIT/Apache-2.0"
edition = "2018"
[lib]
crate-type = ["cdylib", "rlib"]
[dependencies]
getrandom = { version = "0.2.2", features = ["js"] }
pwhash = "1.0.0"
wasm-bindgen = "0.2"
[profile.release]
opt-level = "z"

0
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27
backend/src/lib.rs Normal file
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use pwhash::{
bcrypt::{self, BcryptSetup},
sha512_crypt, HashSetup,
};
use wasm_bindgen::prelude::*;
#[wasm_bindgen]
pub fn hash_bcrypt(password: &str, cost: u32) -> JsValue {
let setup = BcryptSetup {
cost: Some(cost),
..Default::default()
};
bcrypt::hash_with(setup, password)
.expect("failed to calculate bcrypt hash")
.into()
}
#[wasm_bindgen]
pub fn hash_sha512crypt(password: &str, rounds: u32) -> JsValue {
let setup = HashSetup {
rounds: Some(rounds),
salt: None,
};
sha512_crypt::hash_with(setup, password)
.expect("failed to calculate sha512-crypt hash")
.into()
}

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{
"nodes": {
"flake-utils": {
"locked": {
"lastModified": 1623875721,
"narHash": "sha256-A8BU7bjS5GirpAUv4QA+QnJ4CceLHkcXdRp4xITDB0s=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "f7e004a55b120c02ecb6219596820fcd32ca8772",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "flake-utils",
"type": "github"
}
},
"flake-utils_2": {
"locked": {
"lastModified": 1614513358,
"narHash": "sha256-LakhOx3S1dRjnh0b5Dg3mbZyH0ToC9I8Y2wKSkBaTzU=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "5466c5bbece17adaab2d82fae80b46e807611bf3",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "flake-utils",
"type": "github"
}
},
"naersk": {
"inputs": {
"nixpkgs": [
"nixpkgs"
]
},
"locked": {
"lastModified": 1623927034,
"narHash": "sha256-sGxlmfp5eXL5sAMNqHSb04Zq6gPl+JeltIZ226OYN0w=",
"owner": "nmattia",
"repo": "naersk",
"rev": "e09c320446c5c2516d430803f7b19f5833781337",
"type": "github"
},
"original": {
"owner": "nmattia",
"repo": "naersk",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1624271441,
"narHash": "sha256-26QNDCdRE5mPOWYJrPGpVzgrJ3ZxqvWOONfeMsjryz4=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "7e567a3d092b7de69cdf5deaeb8d9526de230916",
"type": "github"
},
"original": {
"owner": "nixos",
"ref": "nixos-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"nixpkgs_2": {
"locked": {
"lastModified": 1617325113,
"narHash": "sha256-GksR0nvGxfZ79T91UUtWjjccxazv6Yh/MvEJ82v1Xmw=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "54c1e44240d8a527a8f4892608c4bce5440c3ecb",
"type": "github"
},
"original": {
"owner": "NixOS",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"flake-utils": "flake-utils",
"naersk": "naersk",
"nixpkgs": "nixpkgs",
"rust-overlay": "rust-overlay"
}
},
"rust-overlay": {
"inputs": {
"flake-utils": "flake-utils_2",
"nixpkgs": "nixpkgs_2"
},
"locked": {
"lastModified": 1624414452,
"narHash": "sha256-vvnagNTPTT3zcPNjD8Gz7STHniQkc3+9cs+4h2pcuVU=",
"owner": "oxalica",
"repo": "rust-overlay",
"rev": "09149337f9899b4b9fa6e4f3889467e8646c9fc5",
"type": "github"
},
"original": {
"owner": "oxalica",
"repo": "rust-overlay",
"type": "github"
}
}
},
"root": "root",
"version": 7
}

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{
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
flake-utils.url = "github:numtide/flake-utils";
rust-overlay.url = "github:oxalica/rust-overlay";
naersk.url = "github:nmattia/naersk";
naersk.inputs.nixpkgs.follows = "nixpkgs";
};
outputs = { self, nixpkgs, rust-overlay, flake-utils, naersk }: flake-utils.lib.eachDefaultSystem (system:
let
overlays = [
rust-overlay.overlay
(final: prev: {
rustc = final.rust-bin.nightly.latest.default.override { targets = [ "wasm32-unknown-unknown" ]; };
cargo = final.rust-bin.nightly.latest.default.override { targets = [ "wasm32-unknown-unknown" ]; };
})
];
pkgs = import nixpkgs { inherit system overlays; };
naerskLib = pkgs.callPackage naersk { };
in
rec {
packages = {
backend = naerskLib.buildPackage {
src = ./backend;
nativeBuildInputs = with pkgs; [
wasm-bindgen-cli
wasm-pack
];
overrideMain = (o: o // {
buildPhase = ''
runHook preBuild
wasm-pack build --target web --release --mode no-install -- --offline
runHook postBuild
'';
installPhase = ''
runHook preInstall
cp -r pkg $out
runHook postInstall
'';
});
};
frontend = pkgs.stdenvNoCC.mkDerivation {
name = "password-hash-self-service";
src = self;
dontBuild = true;
installPhase = ''
runHook preInstall
mkdir $out
cp \
index.html \
style.css \
app.js \
$out
mkdir $out/backend
ln -s ${packages.backend} $out/backend/pkg
runHook postInstall
'';
};
};
defaultPackage = packages.frontend;
devShell = pkgs.mkShell {
buildInputs = with pkgs; [
wasm-pack
(rust-bin.nightly.latest.default.override { targets = [ "wasm32-unknown-unknown" ]; })
];
};
apps = {
serve = {
type = "app";
program = toString (pkgs.writeShellScript "serve" ''
${pkgs.python3}/bin/python3 -m http.server
'');
};
};
hydraJobs =
if pkgs.lib.elem system [ "x86_64-linux" ]
then {
backend = packages.backend;
frontend = packages.frontend;
hydra-product = pkgs.runCommandNoCC "hydra-product" { } ''
cp -rs ${defaultPackage} $out
chmod +w $out
mkdir -p $out/nix-support
echo "doc app $out" >> $out/nix-support/hydra-build-products
'';
}
else { };
});
}

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Password Hash Self-Service</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container">
<h1>Password Hash Self-Service</h1>
<form id="hash-setup" autocomplete="off">
<label for="password">Password</label>
<input name="password" type="password"></input><br>
<label for="hash-type">Hash Type</label>
<input name="hash-type" type="radio" value="bcrypt" checked>bcrypt</input>
<input name="hash-type" type="radio" value="sha512crypt">SHA512-crypt</input><br>
<input id="advanced-options" name="advanced" type="checkbox">Advanced options</input><br>
<div class="advanced">
<label for="bcrypt-cost">bcrpyt cost factor</label>
<input name="bcrypt-cost" type="number" value="12" min="4" max="31"></input><br>
<label for="sha512crypt-rounds">SHA512-crypt rounds</label>
<input name="sha512crypt-rounds" type="number" value="100000" min="1000" max="999999999"></input><br>
</div>
<button type="button" id="generate">Generate</button>
</form>
<div id="hash-container"><span id="hash"></span></div>
</div>
<script type="module" src="app.js"></script>
</body>
</html>

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.container {
margin: 1em auto;
max-width: 576px;
}
#hash-container {
display: none;
}
#hash-container.done {
display: block;
border: 1px solid red;
margin: 1em 0em;
padding: 2px;
}
#hash {
font-family: monospace;
line-break: anywhere;
}
body .advanced {
display: none;
}
body.advanced .advanced {
display: initial;
}