feat: parse webpage and compute PoW for widget
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This commit is contained in:
Aravinth Manivannan 2023-10-27 03:40:55 +05:30
parent 6f70f0aa86
commit a685f3709f
Signed by: realaravinth
GPG key ID: F8F50389936984FF
4 changed files with 591 additions and 89 deletions

457
Cargo.lock generated
View file

@ -17,6 +17,19 @@ version = "1.0.2"
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@ -141,6 +154,12 @@ version = "3.14.0"
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@ -252,6 +271,29 @@ dependencies = [
"typenum",
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[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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"smallvec",
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[[package]]
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@ -318,6 +360,17 @@ dependencies = [
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[[package]]
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@ -328,6 +381,27 @@ dependencies = [
"crypto-common",
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[[package]]
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[[package]]
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@ -393,6 +467,16 @@ dependencies = [
"percent-encoding",
]
[[package]]
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[[package]]
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@ -432,6 +516,15 @@ dependencies = [
"pin-utils",
]
[[package]]
name = "fxhash"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@ -442,6 +535,26 @@ dependencies = [
"version_check",
]
[[package]]
name = "getopts"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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"libc",
"wasi",
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[[package]]
name = "gimli"
version = "0.28.0"
@ -485,6 +598,20 @@ version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d77f7ec81a6d05a3abb01ab6eb7590f6083d08449fe5a1c8b1e620283546ccb7"
[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"mac",
"markup5ever",
"proc-macro2",
"quote",
"syn 1.0.109",
]
[[package]]
name = "http"
version = "0.2.9"
@ -621,12 +748,42 @@ version = "0.4.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
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"scopeguard",
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[[package]]
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dependencies = [
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"phf 0.10.1",
"phf_codegen",
"string_cache",
"string_cache_codegen",
"tendril",
]
[[package]]
name = "mcaptcha-cli"
version = "0.2.0"
@ -634,6 +791,7 @@ dependencies = [
"clap",
"mcaptcha_pow_sha256",
"reqwest",
"scraper",
"serde",
"serde_json",
"tokio",
@ -703,6 +861,12 @@ dependencies = [
"tempfile",
]
[[package]]
name = "new_debug_unreachable"
version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@ -860,12 +1024,115 @@ dependencies = [
"vcpkg",
]
[[package]]
name = "parking_lot"
version = "0.12.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
dependencies = [
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"parking_lot_core",
]
[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"cfg-if",
"libc",
"redox_syscall 0.4.1",
"smallvec",
"windows-targets",
]
[[package]]
name = "percent-encoding"
version = "2.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "pin-project-lite"
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@ -884,6 +1151,18 @@ version = "0.3.27"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "26072860ba924cbfa98ea39c8c19b4dd6a4a25423dbdf219c1eca91aa0cf6964"
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[[package]]
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[[package]]
name = "proc-macro2"
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@ -902,6 +1181,36 @@ dependencies = [
"proc-macro2",
]
[[package]]
name = "rand"
version = "0.8.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
dependencies = [
"libc",
"rand_chacha",
"rand_core",
]
[[package]]
name = "rand_chacha"
version = "0.3.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
dependencies = [
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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[[package]]
name = "redox_syscall"
version = "0.3.5"
@ -911,6 +1220,15 @@ dependencies = [
"bitflags 1.3.2",
]
[[package]]
name = "redox_syscall"
version = "0.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
name = "reqwest"
version = "0.11.22"
@ -985,6 +1303,28 @@ dependencies = [
"windows-sys",
]
[[package]]
name = "scopeguard"
version = "1.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3693f9a0203d49a7ba8f38aa915316b3d535c1862d03dae7009cb71a3408b36a"
dependencies = [
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"cssparser",
"ego-tree",
"getopts",
"html5ever",
"once_cell",
"selectors",
"tendril",
]
[[package]]
name = "security-framework"
version = "2.9.2"
@ -1008,6 +1348,25 @@ dependencies = [
"libc",
]
[[package]]
name = "selectors"
version = "0.25.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4eb30575f3638fc8f6815f448d50cb1a2e255b0897985c8c59f4d37b72a07b06"
dependencies = [
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"phf_codegen",
"precomputed-hash",
"servo_arc",
"smallvec",
]
[[package]]
name = "serde"
version = "1.0.189"
@ -1051,6 +1410,15 @@ dependencies = [
"serde",
]
[[package]]
name = "servo_arc"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d036d71a959e00c77a63538b90a6c2390969f9772b096ea837205c6bd0491a44"
dependencies = [
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]
[[package]]
name = "sha2"
version = "0.10.8"
@ -1062,6 +1430,12 @@ dependencies = [
"digest",
]
[[package]]
name = "siphasher"
version = "0.3.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "38b58827f4464d87d377d175e90bf58eb00fd8716ff0a62f80356b5e61555d0d"
[[package]]
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@ -1071,6 +1445,12 @@ dependencies = [
"autocfg",
]
[[package]]
name = "smallvec"
version = "1.11.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "942b4a808e05215192e39f4ab80813e599068285906cc91aa64f923db842bd5a"
[[package]]
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@ -1091,6 +1471,38 @@ dependencies = [
"windows-sys",
]
[[package]]
name = "stable_deref_trait"
version = "1.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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"once_cell",
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"precomputed-hash",
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]
[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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@ -1148,11 +1560,22 @@ checksum = "cb94d2f3cc536af71caac6b6fcebf65860b347e7ce0cc9ebe8f70d3e521054ef"
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"fastrand",
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"rustix",
"windows-sys",
]
[[package]]
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dependencies = [
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[[package]]
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version = "1.6.0"
@ -1278,6 +1701,12 @@ dependencies = [
"tinyvec",
]
[[package]]
name = "unicode-width"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@ -1290,6 +1719,12 @@ dependencies = [
"serde",
]
[[package]]
name = "utf-8"
version = "0.7.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@ -1496,3 +1931,23 @@ dependencies = [
"cfg-if",
"windows-sys",
]
[[package]]
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dependencies = [
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"syn 2.0.38",
]

View file

@ -17,3 +17,4 @@ reqwest = { version = "0.11.18", features = ["json", "gzip", "native-tls-vendore
serde = { version = "1.0.189", features = ["derive"] }
serde_json = "1.0.107"
url = { version = "2.4.1", features = ["serde"] }
scraper = "0.18.0"

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
help Print this message or the help of the given subcommand(s)
offline Compute PoW with offline parameters
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;
@ -30,14 +31,114 @@ 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 {
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 });
}
}
}
None
}
}
#[derive(Deserialize, Parser, Serialize, Clone, Debug)]
/// Compute PoW by fetching parameters from CAPTCHA URL
struct WidgetUrl {
url: Url,
}
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");
return;
}
let sitekey = sitekey.unwrap();
let url = self.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 = self.get_verify_url();
let resp: VerifyResp = c
.post(url)
.json(&req)
.send()
.await
.unwrap()
.json()
.await
.unwrap();
println!("Authorization token: {}", resp.token);
}
fn extract_sitekey(&self) -> Option<String> {
let mut sitekey = None;
for (k, v) in self.url.query_pairs() {
@ -67,7 +168,8 @@ impl Online {
#[command(author, version, about, long_about = None)]
enum Args {
Offline(Offline),
Online(Online),
ProtectedPage(ProtectedPage),
WidgetUrl(WidgetUrl),
}
fn prove_work(phrase: String, salt: String, difficulty_factor: u32) -> PoW<String> {
@ -92,82 +194,16 @@ async fn main() {
println!("original phrase: {}", &phrase);
println!("result: {}", &work.result);
}
Args::Online(matches) => {
let sitekey = matches.extract_sitekey();
Args::WidgetUrl(matches) => {
matches.run().await;
}
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()
Args::ProtectedPage(matches) => {
let widget = matches
.extract_url()
.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);
.unwrap_or_else(|| panic!("No mCaptcha widget found in the web page"));
widget.run().await;
}
}
}