From 10d5e4e4ef9bcfa7367453a8f9381b8e410e90e4 Mon Sep 17 00:00:00 2001 From: Aravinth Manivannan Date: Sun, 13 Aug 2023 13:24:09 +0530 Subject: [PATCH] feat: Compute PoW by fetching parameters from CAPTCHA URL. Use reuse.software. --- Cargo.lock | 943 +++++++++++++++++++++++++++++++++++++++++++++++++++- Cargo.toml | 7 +- src/main.rs | 191 +++++++++-- 3 files changed, 1086 insertions(+), 55 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 67a1be0..6fee0f6 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2,6 +2,21 @@ # It is not intended for manual editing. version = 3 +[[package]] +name = "addr2line" +version = "0.20.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f4fa78e18c64fce05e902adecd7a5eed15a5e0a3439f7b0e169f0252214865e3" +dependencies = [ + "gimli", +] + +[[package]] +name = "adler" +version = "1.0.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe" + [[package]] name = "anstream" version = "0.3.2" @@ -51,12 +66,46 @@ dependencies = [ "windows-sys", ] +[[package]] +name = "async-compression" +version = "0.4.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "62b74f44609f0f91493e3082d3734d98497e094777144380ea4db9f9905dd5b6" +dependencies = [ + "flate2", + "futures-core", + "memchr", + "pin-project-lite", + "tokio", +] + [[package]] name = "autocfg" version = "1.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa" +[[package]] +name = "backtrace" +version = "0.3.68" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "4319208da049c43661739c5fade2ba182f09d1dc2299b32298d3a31692b17e12" +dependencies = [ + "addr2line", + "cc", + "cfg-if", + "libc", + "miniz_oxide", + "object", + "rustc-demangle", +] + +[[package]] +name = "base64" +version = "0.21.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "604178f6c5c21f02dc555784810edfb88d34ac2c73b2eae109655649ee73ce3d" + [[package]] name = "bincode" version = "1.3.3" @@ -72,6 +121,12 @@ version = "1.3.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a" +[[package]] +name = "bitflags" +version = "2.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "b4682ae6287fcf752ecaabbfcc7b6f9b72aa33933dc23a554d853aea8eea8635" + [[package]] name = "block-buffer" version = "0.10.4" @@ -81,6 +136,18 @@ dependencies = [ "generic-array", ] +[[package]] +name = "bumpalo" +version = "3.13.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "a3e2c3daef883ecc1b5d58c15adae93470a91d425f3532ba1695849656af3fc1" + +[[package]] +name = "bytes" +version = "1.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be" + [[package]] name = "cc" version = "1.0.79" @@ -112,7 +179,7 @@ checksum = "c1458a1df40e1e2afebb7ab60ce55c1fa8f431146205aa5f4887e0b111c27636" dependencies = [ "anstream", "anstyle", - "bitflags", + "bitflags 1.3.2", "clap_lex", "strsim", ] @@ -126,7 +193,7 @@ dependencies = [ "heck", "proc-macro2", "quote", - "syn 2.0.18", + "syn 2.0.28", ] [[package]] @@ -141,6 +208,22 @@ version = "1.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7" +[[package]] +name = "core-foundation" +version = "0.9.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "194a7a9e6de53fa55116934067c844d9d749312f75c6f6d0980e8c252f8c2146" +dependencies = [ + "core-foundation-sys", + "libc", +] + +[[package]] +name = "core-foundation-sys" +version = "0.8.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa" + [[package]] name = "cpufeatures" version = "0.2.7" @@ -150,6 +233,15 @@ dependencies = [ "libc", ] +[[package]] +name = "crc32fast" +version = "1.3.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d" +dependencies = [ + "cfg-if", +] + [[package]] name = "crypto-common" version = "0.1.6" @@ -236,6 +328,15 @@ dependencies = [ "crypto-common", ] +[[package]] +name = "encoding_rs" +version = "0.8.32" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "071a31f4ee85403370b58aca746f01041ede6f0da2730960ad001edc2b71b394" +dependencies = [ + "cfg-if", +] + [[package]] name = "errno" version = "0.3.1" @@ -257,12 +358,91 @@ dependencies = [ "libc", ] +[[package]] +name = "fastrand" +version = "2.0.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6999dc1837253364c2ebb0704ba97994bd874e8f195d665c50b7548f6ea92764" + +[[package]] +name = "flate2" +version = "1.0.26" +source = 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"tokio-native-tls", +] + [[package]] name = "ident_case" version = "1.0.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39" +[[package]] +name = "idna" +version = "0.4.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "7d20d6b07bfbc108882d88ed8e37d39636dcc260e15e30c45e6ba089610b917c" +dependencies = [ + "unicode-bidi", + "unicode-normalization", +] + +[[package]] +name = "indexmap" +version = "1.9.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99" +dependencies = [ + "autocfg", + "hashbrown", +] + [[package]] name = "io-lifetimes" version = "1.0.11" @@ -302,6 +604,12 @@ dependencies = [ "windows-sys", ] +[[package]] +name = "ipnet" +version = "2.8.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = 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"80d0f4e272c85def139476380b12f9ac60926689dd2e01d4923222f40580869d" +dependencies = [ + "winapi", +] diff --git a/Cargo.toml b/Cargo.toml index 2390be7..421114a 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -11,4 +11,9 @@ edition = "2021" [dependencies] pow_sha256 = { version = "0.3.1", git = "https://github.com/mCaptcha/pow_sha256" } -clap = {version = "4.3", features = ["derive"]} +clap = { version = "4.3", features = ["derive"] } +tokio = { version = "1.31.0", features = ["rt", "rt-multi-thread", "macros"] } +reqwest = { version = "0.11.18", features = ["json", "gzip"] } +serde = { version = "1.0.183", features = ["derive"] } +serde_json = "1.0.104" +url = { version = "2.4.0", features = ["serde"] } diff --git a/src/main.rs b/src/main.rs index 1eaf430..7a66c11 100644 --- a/src/main.rs +++ b/src/main.rs @@ -1,29 +1,20 @@ -/* - * mCaptcha - A proof of work based DoS protection system - * Copyright © 2023 Aravinth Manivannan - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as - * published by the Free Software Foundation, either version 3 of the - * License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see . - */ +// Copyright © 2023 Aravinth Manivannan +// SPDX-FileCopyrightText: 2023 Aravinth Manivannan +// +// SPDX-License-Identifier: AGPL-3.0-or-later + +use std::time::Instant; + use clap::*; use pow_sha256::ConfigBuilder; +use pow_sha256::PoW; +use reqwest::Client; +use serde::{Deserialize, Serialize}; +use url::Url; - - -/// Simple program to greet a person -#[derive(Parser, Debug)] -#[command(author, version, about, long_about = None)] -struct Args { +#[derive(Deserialize, Parser, Serialize, Clone, Debug)] +/// Compute PoW with offline parameters +struct Offline { /// Salt with which PoW should be computed #[arg(short, long)] salt: String, @@ -32,22 +23,150 @@ struct Args { #[arg(short, long)] phrase: String, - /// Difficulty Factor #[arg(short, long)] difficulty_factor: u32, } -fn main() { - let matches = Args::parse(); - let phrase = matches.phrase; - let salt = matches.salt; - let difficulty_factor = matches.difficulty_factor; - - let config = ConfigBuilder::default().salt(salt.into()).build().unwrap(); - let work = config.prove_work(&phrase, difficulty_factor).unwrap(); - println!("difficulty: {}", &difficulty_factor); - println!("nonce: {}", &work.nonce); - println!("original phrase: {}", &phrase); - println!("result: {}", &work.result); +#[derive(Deserialize, Parser, Serialize, Clone, Debug)] +/// Compute PoW by fetching parameters from CAPTCHA URL +struct Online { + /// URL of the CAPTCHA. Example: https://example.org/widget?sitekey=foo + #[arg(short, long)] + url: Url, +} + +impl Online { + fn extract_sitekey(&self) -> Option { + let mut sitekey = None; + for (k, v) in self.url.query_pairs() { + if &k == "sitekey" { + let x: &str = &v; + sitekey = Some(x.to_string()) + } + } + + sitekey + } + + fn get_config_url(&self) -> Url { + let mut url = self.url.clone(); + url.set_path("/api/v1/pow/config"); + url + } + + fn get_verify_url(&self) -> Url { + let mut url = self.url.clone(); + url.set_path("/api/v1/pow/verify"); + url + } +} + +#[derive(Deserialize, Parser, Serialize, Clone, Debug)] +#[command(author, version, about, long_about = None)] +enum Args { + Offline(Offline), + Online(Online), +} + +fn prove_work(phrase: String, salt: String, difficulty_factor: u32) -> PoW { + let config = ConfigBuilder::default().salt(salt).build().unwrap(); + config.prove_work(&phrase, difficulty_factor).unwrap() +} + +#[tokio::main] +async fn main() { + let args = Args::parse(); + match args { + Args::Offline(matches) => { + let phrase = matches.phrase; + let salt = matches.salt; + let difficulty_factor = matches.difficulty_factor; + let work = prove_work(phrase.clone(), salt, difficulty_factor); + + // let config = ConfigBuilder::default().salt(salt.into()).build().unwrap(); + // let work = config.prove_work(&phrase, difficulty_factor).unwrap(); + println!("difficulty: {}", &difficulty_factor); + println!("nonce: {}", &work.nonce); + println!("original phrase: {}", &phrase); + println!("result: {}", &work.result); + } + Args::Online(matches) => { + let sitekey = matches.extract_sitekey(); + + if sitekey.is_none() { + println!("ERROR: Sitekey not found in URL. Please enter correct URL"); + return; + } + let sitekey = sitekey.unwrap(); + + let c = Client::default(); + let url = matches.get_config_url(); + + #[derive(Clone, Debug, Serialize, Deserialize)] + struct ConfigRequest { + key: String, + } + + #[derive(Clone, Debug, Serialize, Deserialize)] + struct ConfigResp { + string: String, + difficulty_factor: u32, + salt: String, + } + let req = ConfigRequest { + key: sitekey.to_string(), + }; + + let resp: ConfigResp = c + .post(url) + .json(&req) + .send() + .await + .unwrap() + .json() + .await + .unwrap(); + let start = Instant::now(); + let work = prove_work(resp.string.clone(), resp.salt, resp.difficulty_factor); + let finish = Instant::now(); + let time_elapsed = finish.duration_since(start); + let time = time_elapsed.as_millis() as usize; + + #[derive(Clone, Debug, Serialize, Deserialize)] + struct VerifyRequest { + key: String, + nonce: u64, + result: String, + string: String, + time: usize, + worker_type: String, + } + + #[derive(Clone, Debug, Serialize, Deserialize)] + struct VerifyResp { + token: String, + } + + let req = VerifyRequest { + key: sitekey.clone(), + nonce: work.nonce, + result: work.result, + string: resp.string, + time, + worker_type: String::from("mCaptcha CLI"), + }; + let url = matches.get_verify_url(); + let resp: VerifyResp = c + .post(url) + .json(&req) + .send() + .await + .unwrap() + .json() + .await + .unwrap(); + println!("Authorization token: {}", resp.token); + } + } }