Merge pull request 'feat: parse webpage and compute PoW for widget' (#1) from feat-parse-webpage into master
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Reviewed-on: #1
This commit is contained in:
Aravinth Manivannan 2023-10-27 03:46:44 +05:30
commit 8601f32e52
4 changed files with 593 additions and 91 deletions

457
Cargo.lock generated
View file

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View file

@ -1,8 +1,8 @@
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repository = "https://git.batsense.net/mCaptcha/cli"
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View file

@ -17,22 +17,23 @@
### Modes:
1. Offline: Computes PoW over given CAPTCHA parameters
2. Online: CLI alternative for people using browsers without JavaScript
support
2. Protected Page: Compute mCaptcha challenge for the CAPTCHA at a
protected page
3. Widget URL: Compute PoW for captcha at widget URL
```bash
CLI tool to solve mCaptcha
Usage: mcaptcha-cli <COMMAND>
Commands:
offline Compute PoW with offline parameters
online Compute PoW by fetching parameters from CAPTCHA URL
protected-page Compute PoW by fetching parameters from protected page URL
widget-url Compute PoW by fetching parameters from CAPTCHA URL
help Print this message or the help of the given subcommand(s)
Options:
-h, --help Print help
-V, --version Print version
```
#### Offline
@ -65,7 +66,16 @@ result: 340276562956196291522979356090220150471
[this](https://github.com/realaravinth/dotfiles/blob/6fc6c87cc912e17488a35c0d3327ecf393221270/scripts/rand#L20)
script)
#### Online
#### Protected Page
Used to generate authorization tokens for CAPTCHA at a protected page
```bash
03:39 atm@lab cli ±|feat-parse-webpage ✗|→ mcaptcha-cli protected-page https://showcase.mcaptcha.org/
Authorization token: eRAZJiMrW58uDYA1s64Tmwq1u30HutuF
```
#### Widget URL
Fetches CAPTCHA parameters from CAPTCHA URL, computes PoW, validates
against given mCaptcha server and returns authorization token

View file

@ -10,6 +10,7 @@ use clap::*;
use mcaptcha_pow_sha256::ConfigBuilder;
use mcaptcha_pow_sha256::PoW;
use reqwest::Client;
use scraper::{Html, Selector};
use serde::{Deserialize, Serialize};
use url::Url;
@ -30,70 +31,40 @@ struct Offline {
}
#[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)]
/// Compute PoW by fetching parameters from protected page URL
struct ProtectedPage {
/// URL of the protected page. Example: https://example.org/protected.html
url: Url,
}
impl Online {
fn extract_sitekey(&self) -> Option<String> {
let mut sitekey = None;
for (k, v) in self.url.query_pairs() {
if &k == "sitekey" {
let x: &str = &v;
sitekey = Some(x.to_string())
impl ProtectedPage {
async fn extract_url(self) -> Option<WidgetUrl> {
let c = Client::default();
let text = c.get(self.url).send().await.unwrap().text().await.unwrap();
let fragement = Html::parse_fragment(&text);
let selector = Selector::parse("label#mcaptcha__token-label").unwrap();
if let Some(label) = fragement.select(&selector).next() {
if let Some(val) = label.value().attr("data-mcaptcha_url") {
if let Ok(url) = Url::parse(val) {
return Some(WidgetUrl { url });
}
}
}
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
None
}
}
#[derive(Deserialize, Parser, Serialize, Clone, Debug)]
#[command(author, version, about, long_about = None)]
enum Args {
Offline(Offline),
Online(Online),
/// Compute PoW by fetching parameters from CAPTCHA URL
struct WidgetUrl {
url: Url,
}
fn prove_work(phrase: String, salt: String, difficulty_factor: u32) -> PoW<String> {
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();
impl WidgetUrl {
async fn run(&self) {
let c = Client::default();
let sitekey = self.extract_sitekey();
if sitekey.is_none() {
println!("ERROR: Sitekey not found in URL. Please enter correct URL");
@ -101,8 +72,7 @@ async fn main() {
}
let sitekey = sitekey.unwrap();
let c = Client::default();
let url = matches.get_config_url();
let url = self.get_config_url();
#[derive(Clone, Debug, Serialize, Deserialize)]
struct ConfigRequest {
@ -157,7 +127,7 @@ async fn main() {
time,
worker_type: String::from("mCaptcha CLI"),
};
let url = matches.get_verify_url();
let url = self.get_verify_url();
let resp: VerifyResp = c
.post(url)
.json(&req)
@ -169,5 +139,71 @@ async fn main() {
.unwrap();
println!("Authorization token: {}", resp.token);
}
fn extract_sitekey(&self) -> Option<String> {
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),
ProtectedPage(ProtectedPage),
WidgetUrl(WidgetUrl),
}
fn prove_work(phrase: String, salt: String, difficulty_factor: u32) -> PoW<String> {
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::WidgetUrl(matches) => {
matches.run().await;
}
Args::ProtectedPage(matches) => {
let widget = matches
.extract_url()
.await
.unwrap_or_else(|| panic!("No mCaptcha widget found in the web page"));
widget.run().await;
}
}
}