0
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Merge pull request #204 from neon-mmd/feat-rate-limiter-for-websurfx

 Configurable rate limiting middleware for the app
This commit is contained in:
alamin655 2023-09-12 14:48:17 +05:30 committed by GitHub
commit 61eaa4710c
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 226 additions and 96 deletions

249
Cargo.lock generated
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@ -9,7 +9,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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version = "1.0.47"
version = "1.0.48"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6bb623b56e39ab7dcd4b1b98bb6c8f8d907ed255b18de254088016b27a8ee19b"
checksum = "49922ecae66cc8a249b77e68d1d0623c1b2c514f0060c27cdc68bd62a1219d35"
dependencies = [
"proc-macro2 1.0.66",
"quote 1.0.33",
"syn 2.0.29",
"syn 2.0.32",
]
[[package]]
@ -3157,12 +3258,11 @@ checksum = "3bf63baf9f5039dadc247375c29eb13706706cfde997d0330d05aa63a77d8820"
[[package]]
name = "time"
version = "0.1.45"
version = "0.1.43"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1b797afad3f312d1c66a56d11d0316f916356d11bd158fbc6ca6389ff6bf805a"
checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
dependencies = [
"libc",
"wasi 0.10.0+wasi-snapshot-preview1",
"winapi 0.3.9",
]
@ -3245,7 +3345,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "17ed6077ed6cd6c74735e21f37eb16dc3935f96878b1fe961074089cc80893f9"
dependencies = [
"backtrace",
"bytes 1.4.0",
"bytes 1.5.0",
"libc",
"mio 0.8.8",
"num_cpus",
@ -3307,7 +3407,7 @@ checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e"
dependencies = [
"proc-macro2 1.0.66",
"quote 1.0.33",
"syn 2.0.29",
"syn 2.0.32",
]
[[package]]
@ -3409,7 +3509,7 @@ version = "0.7.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "806fe8c2c87eccc8b3267cbae29ed3ab2d0bd37fca70ab622e46aaa9375ddb7d"
dependencies = [
"bytes 1.4.0",
"bytes 1.5.0",
"futures-core",
"futures-sink",
"pin-project-lite",
@ -3579,9 +3679,9 @@ checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
[[package]]
name = "walkdir"
version = "2.3.3"
version = "2.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "36df944cda56c7d8d8b7496af378e6b16de9284591917d307c9b4d313c44e698"
checksum = "d71d857dc86794ca4c280d616f7da00d2dbfd8cd788846559a6813e6aa4b54ee"
dependencies = [
"same-file",
"winapi-util",
@ -3609,9 +3709,9 @@ dependencies = [
[[package]]
name = "wasi"
version = "0.10.0+wasi-snapshot-preview1"
version = "0.10.2+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
[[package]]
name = "wasi"
@ -3640,7 +3740,7 @@ dependencies = [
"once_cell",
"proc-macro2 1.0.66",
"quote 1.0.33",
"syn 2.0.29",
"syn 2.0.32",
"wasm-bindgen-shared",
]
@ -3674,7 +3774,7 @@ checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
dependencies = [
"proc-macro2 1.0.66",
"quote 1.0.33",
"syn 2.0.29",
"syn 2.0.32",
"wasm-bindgen-backend",
"wasm-bindgen-shared",
]
@ -3697,10 +3797,11 @@ dependencies = [
[[package]]
name = "websurfx"
version = "0.19.0"
version = "0.20.0"
dependencies = [
"actix-cors",
"actix-files",
"actix-governor",
"actix-web",
"async-once-cell",
"async-trait",

View File

@ -1,6 +1,6 @@
[package]
name = "websurfx"
version = "0.19.0"
version = "0.20.0"
edition = "2021"
description = "An open-source alternative to Searx that provides clean, ad-free, and organic results with incredible speed while keeping privacy and security in mind."
repository = "https://github.com/neon-mmd/websurfx"
@ -32,6 +32,7 @@ futures = {version="0.3.28"}
dhat = {version="0.3.2", optional = true}
mimalloc = { version = "0.1.38", default-features = false }
async-once-cell = {version="0.5.3"}
actix-governor = {version="0.4.1"}
[dev-dependencies]
rusty-hook = "^0.11.2"

View File

@ -3,7 +3,7 @@
use crate::handler::paths::{file_path, FileType};
use super::parser_models::Style;
use super::parser_models::{AggregatorConfig, RateLimiter, Style};
use log::LevelFilter;
use mlua::Lua;
use std::{collections::HashMap, fs, thread::available_parallelism};
@ -35,20 +35,10 @@ pub struct Config {
pub upstream_search_engines: Vec<crate::engines::engine_models::EngineHandler>,
pub request_timeout: u8,
pub threads: u8,
pub rate_limiter: RateLimiter,
pub safe_search: u8,
}
/// Configuration options for the aggregator.
///
/// # Fields
///
/// * `random_delay` - It stores the option to whether enable or disable random delays between
/// requests.
#[derive(Clone)]
pub struct AggregatorConfig {
pub random_delay: bool,
}
impl Config {
/// A function which parses the config.lua file and puts all the parsed options in the newly
/// constructed Config struct and returns it.
@ -90,6 +80,8 @@ impl Config {
parsed_threads
};
let rate_limiter = globals.get::<_, HashMap<String, u8>>("rate_limiter")?;
let parsed_safe_search: u8 = globals.get::<_, u8>("safe_search")?;
let safe_search: u8 = match parsed_safe_search {
0..=4 => parsed_safe_search,
@ -121,6 +113,10 @@ impl Config {
.collect(),
request_timeout: globals.get::<_, u8>("request_timeout")?,
threads,
rate_limiter: RateLimiter {
number_of_requests: rate_limiter["number_of_requests"],
time_limit: rate_limiter["time_limit"],
},
safe_search,
})
}

View File

@ -36,3 +36,26 @@ impl Style {
Style { theme, colorscheme }
}
}
/// Configuration options for the aggregator.
///
/// # Fields
///
/// * `random_delay` - It stores the option to whether enable or disable random delays between
/// requests.
#[derive(Clone)]
pub struct AggregatorConfig {
pub random_delay: bool,
}
/// Configuration options for the rate limiter middleware.
///
/// # Fields
///
/// * `number_of_requests` - The number of request that are allowed within a provided time limit.
/// * `time_limit` - The time limit in which the quantity of requests that should be accepted.
#[derive(Clone)]
pub struct RateLimiter {
pub number_of_requests: u8,
pub time_limit: u8,
}

View File

@ -14,12 +14,8 @@ use crate::server::routes;
use actix_cors::Cors;
use actix_files as fs;
use actix_web::{
dev::Server,
http::header,
middleware::{Compress, Logger},
web, App, HttpServer,
};
use actix_governor::{Governor, GovernorConfigBuilder};
use actix_web::{dev::Server, http::header, middleware::Logger, web, App, HttpServer};
use config::parser::Config;
use handlebars::Handlebars;
use handler::paths::{file_path, FileType};
@ -69,11 +65,17 @@ pub fn run(listener: TcpListener, config: Config) -> std::io::Result<Server> {
]);
App::new()
.wrap(Logger::default()) // added logging middleware for logging.
.app_data(handlebars_ref.clone())
.app_data(web::Data::new(config.clone()))
.wrap(cors)
.wrap(Logger::default()) // added logging middleware for logging.
.wrap(Compress::default()) // compress request headers to reduce memory usage.
.wrap(Governor::new(
&GovernorConfigBuilder::default()
.per_second(config.rate_limiter.time_limit as u64)
.burst_size(config.rate_limiter.number_of_requests as u32)
.finish()
.unwrap(),
))
// Serve images and static files (css and js files).
.service(
fs::Files::new("/static", format!("{}/static", public_folder_path))

View File

@ -10,6 +10,10 @@ production_use = false -- whether to use production mode or not (in other words
-- if production_use is set to true
-- There will be a random delay before sending the request to the search engines, this is to prevent DDoSing the upstream search engines from a large number of simultaneous requests.
request_timeout = 30 -- timeout for the search requests sent to the upstream search engines to be fetched (value in seconds).
rate_limiter = {
number_of_requests = 20, -- The number of request that are allowed within a provided time limit.
time_limit = 3, -- The time limit in which the quantity of requests that should be accepted.
}
-- ### Search ###
-- Filter results based on different levels. The levels provided are:
@ -45,4 +49,7 @@ theme = "simple" -- the theme name which should be used for the website
redis_url = "redis://127.0.0.1:8082" -- redis connection url address on which the client should connect on.
-- ### Search Engines ###
upstream_search_engines = { DuckDuckGo = true, Searx = false } -- select the upstream search engines from which the results should be fetched.
upstream_search_engines = {
DuckDuckGo = true,
Searx = false,
} -- select the upstream search engines from which the results should be fetched.