Pyo3 practice

7_PyO3/password_hasher/.env/Scripts/activate

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+# This file must be used with "source bin/activate" *from bash*
+# You cannot run it directly
+
+deactivate () {
+    # reset old environment variables
+    if [ -n "${_OLD_VIRTUAL_PATH:-}" ] ; then
+        PATH="${_OLD_VIRTUAL_PATH:-}"
+        export PATH
+        unset _OLD_VIRTUAL_PATH
+    fi
+    if [ -n "${_OLD_VIRTUAL_PYTHONHOME:-}" ] ; then
+        PYTHONHOME="${_OLD_VIRTUAL_PYTHONHOME:-}"
+        export PYTHONHOME
+        unset _OLD_VIRTUAL_PYTHONHOME
+    fi
+
+    # Call hash to forget past commands. Without forgetting
+    # past commands the $PATH changes we made may not be respected
+    hash -r 2> /dev/null
+
+    if [ -n "${_OLD_VIRTUAL_PS1:-}" ] ; then
+        PS1="${_OLD_VIRTUAL_PS1:-}"
+        export PS1
+        unset _OLD_VIRTUAL_PS1
+    fi
+
+    unset VIRTUAL_ENV
+    unset VIRTUAL_ENV_PROMPT
+    if [ ! "${1:-}" = "nondestructive" ] ; then
+    # Self destruct!
+        unset -f deactivate
+    fi
+}
+
+# unset irrelevant variables
+deactivate nondestructive
+
+# on Windows, a path can contain colons and backslashes and has to be converted:
+if [ "${OSTYPE:-}" = "cygwin" ] || [ "${OSTYPE:-}" = "msys" ] ; then
+    # transform D:\path\to\venv to /d/path/to/venv on MSYS
+    # and to /cygdrive/d/path/to/venv on Cygwin
+    export VIRTUAL_ENV=$(cygpath "C:\PROJECTS\KMA\Rust\kma_rustlang_course_2024_Kyrylo_Sydorov\7_PyO3\password_hasher\.env")
+else
+    # use the path as-is
+    export VIRTUAL_ENV="C:\PROJECTS\KMA\Rust\kma_rustlang_course_2024_Kyrylo_Sydorov\7_PyO3\password_hasher\.env"
+fi
+
+_OLD_VIRTUAL_PATH="$PATH"
+PATH="$VIRTUAL_ENV/Scripts:$PATH"
+export PATH
+
+# unset PYTHONHOME if set
+# this will fail if PYTHONHOME is set to the empty string (which is bad anyway)
+# could use `if (set -u; : $PYTHONHOME) ;` in bash
+if [ -n "${PYTHONHOME:-}" ] ; then
+    _OLD_VIRTUAL_PYTHONHOME="${PYTHONHOME:-}"
+    unset PYTHONHOME
+fi
+
+if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT:-}" ] ; then
+    _OLD_VIRTUAL_PS1="${PS1:-}"
+    PS1="(.env) ${PS1:-}"
+    export PS1
+    VIRTUAL_ENV_PROMPT="(.env) "
+    export VIRTUAL_ENV_PROMPT
+fi
+
+# Call hash to forget past commands. Without forgetting
+# past commands the $PATH changes we made may not be respected
+hash -r 2> /dev/null

7_PyO3/password_hasher/.env/Scripts/activate.bat

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+@echo off
+
+rem This file is UTF-8 encoded, so we need to update the current code page while executing it
+for /f "tokens=2 delims=:." %%a in ('"%SystemRoot%\System32\chcp.com"') do (
+    set _OLD_CODEPAGE=%%a
+)
+if defined _OLD_CODEPAGE (
+    "%SystemRoot%\System32\chcp.com" 65001 > nul
+)
+
+set VIRTUAL_ENV=C:\PROJECTS\KMA\Rust\kma_rustlang_course_2024_Kyrylo_Sydorov\7_PyO3\password_hasher\.env
+
+if not defined PROMPT set PROMPT=$P$G
+
+if defined _OLD_VIRTUAL_PROMPT set PROMPT=%_OLD_VIRTUAL_PROMPT%
+if defined _OLD_VIRTUAL_PYTHONHOME set PYTHONHOME=%_OLD_VIRTUAL_PYTHONHOME%
+
+set _OLD_VIRTUAL_PROMPT=%PROMPT%
+set PROMPT=(.env) %PROMPT%
+
+if defined PYTHONHOME set _OLD_VIRTUAL_PYTHONHOME=%PYTHONHOME%
+set PYTHONHOME=
+
+if defined _OLD_VIRTUAL_PATH set PATH=%_OLD_VIRTUAL_PATH%
+if not defined _OLD_VIRTUAL_PATH set _OLD_VIRTUAL_PATH=%PATH%
+
+set PATH=%VIRTUAL_ENV%\Scripts;%PATH%
+set VIRTUAL_ENV_PROMPT=(.env) 
+
+:END
+if defined _OLD_CODEPAGE (
+    "%SystemRoot%\System32\chcp.com" %_OLD_CODEPAGE% > nul
+    set _OLD_CODEPAGE=
+)

7_PyO3/password_hasher/.env/Scripts/deactivate.bat

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+@echo off
+
+if defined _OLD_VIRTUAL_PROMPT (
+    set "PROMPT=%_OLD_VIRTUAL_PROMPT%"
+)
+set _OLD_VIRTUAL_PROMPT=
+
+if defined _OLD_VIRTUAL_PYTHONHOME (
+    set "PYTHONHOME=%_OLD_VIRTUAL_PYTHONHOME%"
+    set _OLD_VIRTUAL_PYTHONHOME=
+)
+
+if defined _OLD_VIRTUAL_PATH (
+    set "PATH=%_OLD_VIRTUAL_PATH%"
+)
+
+set _OLD_VIRTUAL_PATH=
+
+set VIRTUAL_ENV=
+set VIRTUAL_ENV_PROMPT=
+
+:END

7_PyO3/password_hasher/.env/pyvenv.cfg

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+home = C:\Users\kvs12\AppData\Local\Programs\Python\Python312
+include-system-site-packages = false
+version = 3.12.3
+executable = C:\Users\kvs12\PycharmProjects\BCH\.venv\Scripts\python.exe
+command = C:\Users\kvs12\PycharmProjects\BCH\.venv\Scripts\python.exe -m venv C:\PROJECTS\KMA\Rust\kma_rustlang_course_2024_Kyrylo_Sydorov\7_PyO3\password_hasher\.env

7_PyO3/password_hasher/Cargo.toml

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+[package]
+name = "password_hasher"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[lib]
+name = "password_hasher"
+crate-type = ["cdylib"]
+
+[dependencies]
+pyo3 = "0.22.0"
+argon2 = "0.5.3"
+rand = "0.8.5"
+

7_PyO3/password_hasher/pyproject.toml

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+[build-system]
+requires = ["maturin>=1.7,<2.0"]
+build-backend = "maturin"
+
+[project]
+name = "password_hasher"
+requires-python = ">=3.8"
+classifiers = [
+    "Programming Language :: Rust",
+    "Programming Language :: Python :: Implementation :: CPython",
+    "Programming Language :: Python :: Implementation :: PyPy",
+]
+dynamic = ["version"]
+[tool.maturin]
+features = ["pyo3/extension-module"]

7_PyO3/password_hasher/src/lib.rs

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+use argon2::{
+    password_hash::{rand_core::OsRng, PasswordHash, PasswordHasher, PasswordVerifier, SaltString},
+    Argon2,
+};
+use pyo3::prelude::*;
+
+#[pyfunction]
+fn hash_password(password: &str) -> PyResult<String> {
+    let salt = SaltString::generate(&mut OsRng);
+    // Argon2 з параметрами за замовчуванням (Argon2id v19)
+    let argon2 = Argon2::default();
+    // Хеш-пароль до рядка PHC ($argon2id$v=19$...)
+    let password_hash = argon2
+        .hash_password(password.as_bytes(), &salt)
+        .map_err(|e| pyo3::exceptions::PyValueError::new_err(e.to_string()))?
+        .to_string();
+    Ok(password_hash)
+}
+
+#[pyfunction]
+fn verify_password(password: &str, password_hash: &str) -> PyResult<bool> {
+    // Звірити пароль з PHC-рядком.
+    let parsed_hash = PasswordHash::new(password_hash)
+        .map_err(|e| pyo3::exceptions::PyValueError::new_err(e.to_string()))?;
+    let is_valid = Argon2::default()
+        .verify_password(password.as_bytes(), &parsed_hash)
+        .is_ok();
+
+    Ok(is_valid)
+}
+/// Python модуль на основі Rust
+#[pymodule]
+fn password_hasher(m: &Bound<'_, PyModule>) -> PyResult<()> {
+    m.add_function(wrap_pyfunction!(hash_password, m)?)?;
+    m.add_function(wrap_pyfunction!(verify_password, m)?)?;
+    Ok(())
+}

7_PyO3/password_hasher/test_hasher.py

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+import password_hasher
+
+# Хешування паролю
+hashed = password_hasher.hash_password("my_secure_password")
+print("Hashed password:", hashed)
+
+# Перевірка паролю
+is_valid = password_hasher.verify_password("my_secure_password", hashed)
+print("Is valid:", is_valid)