Add impersonation capabilites

Update lib.rs

src/browser/chrome/mod.rs

@@ -0,0 +1,27 @@
+//! Settings for impersonating the Chrome browser
+
+use crate::ClientBuilder;
+
+mod ver;
+
+pub(crate) fn configure_chrome(ver: ChromeVersion, builder: ClientBuilder) -> ClientBuilder {
+    let settings = ver::get_config_from_ver(ver);
+
+    builder
+        .use_boring_tls(settings.tls_builder_func)
+        .http2_initial_stream_window_size(settings.http2.initial_stream_window_size)
+        .http2_initial_connection_window_size(settings.http2.initial_connection_window_size)
+        .http2_max_concurrent_streams(settings.http2.max_concurrent_streams)
+        .http2_max_header_list_size(settings.http2.max_header_list_size)
+        .http2_header_table_size(settings.http2.header_table_size)
+        .replace_default_headers(settings.headers)
+        .brotli(settings.brotli)
+        .gzip(settings.gzip)
+}
+
+/// Defines the Chrome version to mimic when setting up a builder
+#[derive(Debug)]
+#[allow(missing_docs)]
+pub enum ChromeVersion {
+    V104,
+}

src/browser/chrome/ver/mod.rs

@@ -0,0 +1,11 @@
+use crate::browser::BrowserSettings;
+
+use super::ChromeVersion;
+
+mod v104;
+
+pub(super) fn get_config_from_ver(ver: ChromeVersion) -> BrowserSettings {
+    match ver {
+        ChromeVersion::V104 => v104::get_settings(),
+    }
+}

src/browser/chrome/ver/v104.rs

@@ -0,0 +1,110 @@
+use std::sync::Arc;
+
+use boring::ssl::{
+    CertCompressionAlgorithm, SslConnector, SslConnectorBuilder, SslMethod, SslVersion,
+};
+use http::{
+    header::{ACCEPT, ACCEPT_ENCODING, ACCEPT_LANGUAGE, UPGRADE_INSECURE_REQUESTS, USER_AGENT},
+    HeaderMap,
+};
+
+use crate::browser::{BrowserSettings, Http2Data};
+
+pub(super) fn get_settings() -> BrowserSettings {
+    BrowserSettings {
+        tls_builder_func: Arc::new(create_ssl_connector),
+        http2: Http2Data {
+            initial_stream_window_size: 6291456,
+            initial_connection_window_size: 15728640,
+            max_concurrent_streams: 1000,
+            max_header_list_size: 262144,
+            header_table_size: 65536,
+        },
+        headers: create_headers(),
+        gzip: true,
+        brotli: true,
+    }
+}
+
+fn create_ssl_connector() -> SslConnectorBuilder {
+    let mut builder = SslConnector::builder(SslMethod::tls()).unwrap();
+
+    builder.set_grease_enabled(true);
+
+    builder.enable_ocsp_stapling();
+
+    let cipher_list = [
+        "TLS_AES_128_GCM_SHA256",
+        "TLS_AES_256_GCM_SHA384",
+        "TLS_CHACHA20_POLY1305_SHA256",
+        "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
+        "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
+        "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
+        "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
+        "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256",
+        "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256",
+        "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
+        "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
+        "TLS_RSA_WITH_AES_128_GCM_SHA256",
+        "TLS_RSA_WITH_AES_256_GCM_SHA384",
+        "TLS_RSA_WITH_AES_128_CBC_SHA",
+        "TLS_RSA_WITH_AES_256_CBC_SHA",
+    ];
+
+    builder.set_cipher_list(&cipher_list.join(":")).unwrap();
+
+    let sigalgs_list = [
+        "ecdsa_secp256r1_sha256",
+        "rsa_pss_rsae_sha256",
+        "rsa_pkcs1_sha256",
+        "ecdsa_secp384r1_sha384",
+        "rsa_pss_rsae_sha384",
+        "rsa_pkcs1_sha384",
+        "rsa_pss_rsae_sha512",
+        "rsa_pkcs1_sha512",
+    ];
+
+    builder.set_sigalgs_list(&sigalgs_list.join(":")).unwrap();
+
+    builder.enable_signed_cert_timestamps();
+
+    builder.set_alpn_protos(b"\x02h2\x08http/1.1").unwrap();
+
+    builder
+        .add_cert_compression_alg(CertCompressionAlgorithm::Brotli)
+        .unwrap();
+
+    builder
+        .set_min_proto_version(Some(SslVersion::TLS1_2))
+        .unwrap();
+
+    builder
+        .set_max_proto_version(Some(SslVersion::TLS1_3))
+        .unwrap();
+
+    builder
+}
+
+fn create_headers() -> HeaderMap {
+    let mut headers = HeaderMap::new();
+
+    headers.insert(
+        "sec-ch-ua",
+        "\"Chromium\";v=\"104\", \" Not A;Brand\";v=\"99\", \"Google Chrome\";v=\"104\""
+            .parse()
+            .unwrap(),
+    );
+    headers.insert("sec-ch-ua-mobile", "?0".parse().unwrap());
+    headers.insert("sec-ch-ua-platform", "\"Windows\"".parse().unwrap());
+    headers.insert(UPGRADE_INSECURE_REQUESTS, "1".parse().unwrap());
+    headers.insert(USER_AGENT, "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36".parse().unwrap());
+    headers.insert(ACCEPT, "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9".parse().unwrap());
+    headers.insert("sec-fetch-site", "none".parse().unwrap());
+    headers.insert("sec-fetch-mode", "navigate".parse().unwrap());
+    headers.insert("sec-fetch-user", "?1".parse().unwrap());
+    headers.insert("sec-fetch-dest", "document".parse().unwrap());
+    headers.insert(ACCEPT_ENCODING, "gzip, deflate, br".parse().unwrap());
+    headers.insert(ACCEPT_LANGUAGE, "en-US,en;q=0.9".parse().unwrap());
+
+    headers
+}

src/browser/mod.rs

@@ -0,0 +1,31 @@
+//! Holds structs and information to aid in impersonating a set of browsers
+
+use std::sync::Arc;
+
+use boring::ssl::SslConnectorBuilder;
+use http::HeaderMap;
+
+#[cfg(feature = "__chrome")]
+pub use chrome::ChromeVersion;
+
+#[cfg(feature = "__chrome")]
+mod chrome;
+
+#[cfg(feature = "__chrome")]
+pub(crate) use chrome::configure_chrome;
+
+struct BrowserSettings {
+    pub tls_builder_func: Arc<dyn Fn() -> SslConnectorBuilder + Send + Sync>,
+    pub http2: Http2Data,
+    pub headers: HeaderMap,
+    pub gzip: bool,
+    pub brotli: bool,
+}
+
+struct Http2Data {
+    pub initial_stream_window_size: u32,
+    pub initial_connection_window_size: u32,
+    pub max_concurrent_streams: u32,
+    pub max_header_list_size: u32,
+    pub header_table_size: u32,
+}