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lib.rs
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lib.rs
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//! xkcd-style password generator
/*
Copyright 2019-2022 qtfkwk
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
// Crates
use clap::Parser;
use factorial::Factorial;
use num::bigint::BigUint;
use rand::seq::SliceRandom;
use rand::thread_rng;
use rand::Rng;
use separator::Separatable;
// Macros
/// Generate xkcd-style password with a specified or the default number of
/// words (4).
#[macro_export]
macro_rules! xpg {
($words: expr) => {
xpg($words)
};
() => {
xpg(4)
}; // default: 4 words
}
// Constants
const DIGITS: &str = "0123456789";
const SYMBOLS: &str = "~!@#$%^&*-_=+;:,./?()[]{}<>";
const LOWERCASE: &str = "abcdefghijklmnopqrstuvwxyz";
const UPPERCASE: &str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
const ALL: &str = "\
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789~!@#$%^&*-_=+;:,./?()[]{}<>";
// Tests
#[cfg(test)]
mod tests {
use super::*;
use regex::Regex;
#[test]
fn default_xpg_macro_returns_four_words() {
let re = Regex::new(r"^([A-Z][a-z]+){4}$").unwrap();
let result = xpg!();
assert!(re.is_match(&result));
}
#[test]
fn xpg_macro_can_return_three_words() {
let re = Regex::new(r"^([A-Z][a-z]+){3}$").unwrap();
let result = xpg!(3);
assert!(re.is_match(&result));
}
#[test]
fn xpg_macro_can_return_four_words() {
let re = Regex::new(r"^([A-Z][a-z]+){4}$").unwrap();
let result = xpg!(4);
assert!(re.is_match(&result));
}
#[test]
fn xpg_macro_can_return_five_words() {
let re = Regex::new(r"^([A-Z][a-z]+){5}$").unwrap();
let result = xpg!(5);
assert!(re.is_match(&result));
}
#[test]
#[should_panic]
fn xpg_macro_cannot_return_zero_words() {
let _result = xpg!(0);
}
#[test]
fn xpg_macro_can_return_one_word() {
let re = Regex::new(r"^([A-Z][a-z]+)$").unwrap();
let result = xpg!(1);
assert!(re.is_match(&result));
}
#[test]
fn xpg_can_return_three_words() {
let re = Regex::new(r"^([A-Z][a-z]+){3}$").unwrap();
let result = xpg(3);
assert!(re.is_match(&result));
}
#[test]
fn xpg_can_return_four_words() {
let re = Regex::new(r"^([A-Z][a-z]+){4}$").unwrap();
let result = xpg(4);
assert!(re.is_match(&result));
}
#[test]
fn xpg_can_return_five_words() {
let re = Regex::new(r"^([A-Z][a-z]+){5}$").unwrap();
let result = xpg(5);
assert!(re.is_match(&result));
}
#[test]
#[should_panic]
fn xpg_cannot_return_zero_words() {
let _result = xpg(0);
}
#[test]
fn xpg_can_return_one_word() {
let re = Regex::new(r"^([A-Z][a-z]+)$").unwrap();
let result = xpg(1);
assert!(re.is_match(&result));
}
}
// Variables
const WORDLIST: [&'static str; 1259] = [
"Africa",
"Alabama",
"Alaska",
"America",
"Amsterdam",
"April",
"Arizona",
"Asia",
"Athens",
"August",
"Australia",
"Austria",
"Barbados",
"Belfast",
"Belgium",
"Berlin",
"Botswana",
"Brazil",
"Britain",
"British",
"Bulgaria",
"California",
"Canada",
"Chile",
"China",
"Colombia",
"Congo",
"Copenhagen",
"Cuba",
"Damascus",
"December",
"Delaware",
"Denmark",
"Dublin",
"Earth",
"Egypt",
"England",
"English",
"Europe",
"February",
"Fiji",
"Finland",
"Florida",
"France",
"French",
"Friday",
"Germany",
"Gibraltar",
"Greece",
"Greek",
"Havana",
"Hawaii",
"Holland",
"Iceland",
"India",
"Indian",
"Ireland",
"Italy",
"Jamaica",
"Japan",
"Japanese",
"Jerusalem",
"Jordan",
"July",
"June",
"Jupiter",
"Kentucky",
"Kenya",
"Korea",
"Lisbon",
"London",
"Madrid",
"Malta",
"March",
"Mark",
"Mars",
"Maryland",
"Mercury",
"Mexico",
"Monday",
"Montana",
"Moon",
"Moscow",
"Nepal",
"Neptune",
"Netherlands",
"Nevada",
"Norway",
"November",
"October",
"Ohio",
"Oslo",
"Panama",
"Paris",
"Peru",
"Pluto",
"Poland",
"Portugal",
"Rome",
"Russia",
"Saturday",
"Saturn",
"Scotland",
"September",
"Singapore",
"Spain",
"Sunday",
"Sweden",
"Texas",
"Tokyo",
"Tuesday",
"Uranus",
"Venus",
"Vermont",
"Virginia",
"Wales",
"Warsaw",
"Washington",
"Wednesday",
"Able",
"About",
"Above",
"Across",
"Action",
"Actually",
"Addition",
"Adjective",
"Advance",
"Afraid",
"After",
"Again",
"Against",
"Agree",
"Agreed",
"Ahead",
"Airplane",
"Allow",
"Almost",
"Alone",
"Along",
"Already",
"Also",
"Although",
"Always",
"Among",
"Amount",
"Anger",
"Angle",
"Angry",
"Animal",
"Another",
"Answer",
"Anything",
"Appear",
"Apple",
"Area",
"Arms",
"Army",
"Around",
"Arrive",
"Arrived",
"Article",
"Attempt",
"Aunt",
"Away",
"Baby",
"Back",
"Ball",
"Bank",
"Banker",
"Base",
"Basket",
"Battle",
"Bean",
"Bear",
"Beat",
"Beautiful",
"Beauty",
"Became",
"Because",
"Become",
"Been",
"Before",
"Began",
"Begin",
"Behind",
"Being",
"Believe",
"Bell",
"Belong",
"Below",
"Beside",
"Best",
"Better",
"Between",
"Beyond",
"Bicycle",
"Bill",
"Bird",
"Birds",
"Black",
"Block",
"Blood",
"Blow",
"Blue",
"Board",
"Boat",
"Body",
"Bone",
"Bones",
"Book",
"Born",
"Borrow",
"Both",
"Bottle",
"Bottom",
"Branch",
"Branches",
"Bread",
"Break",
"Bridge",
"Bright",
"Bring",
"Broad",
"Broke",
"Broken",
"Brother",
"Brought",
"Brown",
"Build",
"Building",
"Built",
"Burn",
"Burning",
"Business",
"Busy",
"Butter",
"Cake",
"Call",
"Came",
"Cannot",
"Capital",
"Captain",
"Care",
"Carefully",
"Carry",
"Case",
"Catch",
"Cattle",
"Caught",
"Cause",
"Cells",
"Cent",
"Center",
"Cents",
"Century",
"Certain",
"Chair",
"Chance",
"Change",
"Character",
"Charge",
"Chart",
"Check",
"Chief",
"Child",
"Childhood",
"Children",
"Choose",
"Church",
"Cigarette",
"Circle",
"City",
"Class",
"Clean",
"Clear",
"Climbed",
"Clock",
"Close",
"Cloth",
"Clothes",
"Cloud",
"Coast",
"Coat",
"Cold",
"College",
"Color",
"Colour",
"Column",
"Come",
"Common",
"Company",
"Compare",
"Complete",
"Compound",
"Condition",
"Conditions",
"Consider",
"Considerable",
"Consonant",
"Contain",
"Continue",
"Continued",
"Control",
"Cook",
"Cool",
"Copy",
"Corn",
"Corner",
"Correct",
"Cost",
"Cotton",
"Could",
"Count",
"Country",
"Course",
"Cover",
"Covered",
"Cows",
"Create",
"Cried",
"Crops",
"Cross",
"Crowd",
"Current",
"Daily",
"Dance",
"Dare",
"Dark",
"Date",
"Daughter",
"Dead",
"Deal",
"Dear",
"Death",
"Decide",
"Decided",
"Decimal",
"Deep",
"Degree",
"Delight",
"Demand",
"Describe",
"Desert",
"Design",
"Desire",
"Destroy",
"Details",
"Determine",
"Developed",
"Device",
"Dictionary",
"Died",
"Difference",
"Different",
"Difficult",
"Dinner",
"Direct",
"Direction",
"Discover",
"Discovered",
"Dish",
"Distance",
"Distant",
"Divide",
"Divided",
"Division",
"Doctor",
"Does",
"Dollar",
"Dollars",
"Done",
"Door",
"Double",
"Doubt",
"Down",
"Draw",
"Drawing",
"Dream",
"Dress",
"Dried",
"Drink",
"Drive",
"Drop",
"Duck",
"During",
"Dusk",
"Duty",
"Each",
"Early",
"Ears",
"Earth",
"East",
"Easy",
"Edge",
"Effect",
"Effort",
"Eggs",
"Eight",
"Either",
"Electric",
"Electricity",
"Elements",
"Else",
"Enemy",
"Energy",
"Engine",
"Enjoy",
"Enough",
"Enter",
"Entered",
"Entire",
"Equal",
"Equation",
"Escape",
"Especially",
"Etching",
"Even",
"Evening",
"Ever",
"Every",
"Everyone",
"Everything",
"Exactly",
"Example",
"Except",
"Exciting",
"Exercise",
"Expect",
"Experience",
"Experiment",
"Explain",
"Express",
"Face",
"Fact",
"Factories",
"Factors",
"Fail",
"Fair",
"Fall",
"Family",
"Famous",
"Fancy",
"Farm",
"Farmers",
"Fast",
"Father",
"Favor",
"Fear",
"Feed",
"Feel",
"Feeling",
"Feet",
"Fell",
"Fellow",
"Felt",
"Fence",
"Field",
"Fifteen",
"Fifth",
"Fifty",
"Fight",
"Figure",
"Fill",
"Filled",
"Finally",
"Find",
"Fine",
"Finger",
"Fingers",
"Finish",
"Finished",
"Fire",
"Firm",
"First",
"Fish",
"Five",
"Flat",
"Flier",
"Floor",
"Flow",
"Flower",
"Flowers",
"Follow",
"Food",
"Fool",
"Foot",
"Force",
"Foreign",
"Forest",
"Forever",
"Forget",
"Form",
"Fortieth",
"Forty",
"Forward",
"Found",
"Four",
"Fraction",
"Free",
"Fresh",
"Friend",
"Friends",
"From",
"Front",
"Fruit",
"Full",
"Further",
"Future",
"Gain",
"Galaxy",
"Game",
"Garden",
"Gate",
"Gather",
"Gave",
"General",
"Gentle",
"Gentleman",
"Gift",
"Girl",
"Give",
"Gives",
"Glad",
"Glass",
"Glossary",
"Goes",
"Gold",
"Gone",
"Good",
"Goodbye",
"Govern",
"Government",
"Grain",
"Grass",
"Grave",
"Gray",
"Great",
"Green",
"Grew",
"Ground",
"Group",
"Grow",
"Grown",
"Guard",
"Guess",
"Guide",
"Hair",
"Half",
"Hall",
"Halt",
"Hand",
"Hang",
"Happen",
"Happened",
"Happy",
"Hard",
"Have",
"Head",
"Health",
"Hear",
"Heard",
"Heart",
"Heat",
"Heaven",
"Heavy",
"Height",
"Held",
"Hello",
"Help",
"Here",
"Hers",
"High",
"Hill",
"Himself",
"History",
"Hold",
"Hole",
"Home",
"Honor",
"Hope",
"Horse",
"Hour",
"Hours",
"House",
"However",
"Huge",
"Human",
"Hundred",
"Hunger",
"Hunt",
"Hunting",
"Hurry",
"Hurt",
"Husband",
"Idea",
"Important",
"Inch",
"Inches",
"Include",
"Increase",
"Indeed",
"Indicate",
"Industry",
"Information",
"Insects",
"Inside",
"Instead",
"Instruments",
"Interest",
"Into",
"Iron",
"Island",
"Itself",
"Join",
"Joined",
"Journey",
"Judge",
"Jump",
"Jumped",
"Just",
"Keep",
"Kept",
"Kill",
"Killed",
"Kind",
"King",
"Kiss",
"Kitchen",
"Knew",
"Know",
"Known",
"Labor",
"Ladder",
"Lady",
"Lake",
"Land",
"Language",
"Large",
"Last",
"Late",
"Later",
"Laugh",
"Laughed",
"Laughter",
"Lead",
"Leader",
"Learn",
"Least",
"Leave",
"Left",
"Legs",
"Lend",
"Length",
"Less",
"Letter",
"Level",
"Liar",
"Life",
"Lift",
"Lifted",
"Light",
"Like",
"Likely",
"Line",
"List",
"Listen",
"Little",
"Live",
"Located",
"Lone",
"Long",
"Look",
"Lord",
"Lose",
"Loss",
"Lost",
"Loud",
"Love",
"Lower",
"Machine",
"Made",
"Mail",
"Main",
"Major",
"Make",
"Manner",
"Many",
"March",
"Mark",
"Market",
"Marry",
"Master",
"Match",
"Material",
"Matter",
"Maybe",
"Mayor",
"Mean",
"Measure",
"Meat",
"Meet",
"Meeting",
"Melody",
"Member",
"Members",
"Metal",
"Method",
"Middle",
"Might",
"Mile",
"Milk",
"Million",
"Mind",
"Mine",
"Minute",
"Minutes",
"Miss",
"Mister",
"Modern",
"Molecules",
"Moment",
"Money",
"Month",
"Months",
"Moon",
"More",
"Morning",
"Most",
"Mother",
"Mountain",
"Mouth",
"Move",
"Movement",
"Much",
"Music",
"Must",
"Nail",
"Name",
"Nation",
"Natural",
"Nature",
"Near",
"Nearly",
"Necessary",
"Neck",
"Need",
"Needle",
"Neighbor",
"Neither",
"Nerve",
"Never",
"News",
"Next",
"Nice",
"Niece",
"Night",
"Nine",
"Noise",
"None",
"Noon",
"North",
"Northern",
"Nose",
"Note",
"Nothing",
"Notice",
"Noun",
"Number",
"Numeral",
"Object",
"Observe",
"Ocean",
"Offer",
"Office",
"Often",
"Once",
"Only",
"Open",
"Opinion",
"Opposite",
"Order",
"Orderly",
"Other",
"Ought",
"Outer",
"Outside",
"Over",
"Oxygen",
"Page",
"Paid",
"Pain",
"Paint",
"Pair",
"Paper",
"Paragraph",
"Park",
"Part",
"Partial",
"Particular",
"Party",
"Pass",
"Passed",
"Past",
"Pattern",
"Peace",
"People",
"Perfect",
"Perhaps",
"Period",
"Person",
"Phrase",
"Pick",
"Picked",
"Picture",
"Piece",
"Place",
"Plain",
"Plains",
"Plan",
"Plane",
"Planet",
"Plant",
"Plants",
"Play",
"Pleasant",
"Please",
"Pleasure",
"Plural",
"Poem",
"Point",
"Pole",
"Poor",
"Position",
"Possible",
"Pounds",
"Power",
"Practice",
"Prepare",
"Prepared",
"Present",
"President",
"Presidents",
"Press",
"Pretty",
"Price",
"Printed",
"Probable",
"Probably",
"Problem",
"Process",
"Produce",
"Products",
"Promise",
"Property",