Updated icon fetching and crates.

- Updated some crates
- Updated icon fetching code:
  + Use a cookie jar and set Max-Age to 2 minutes for all cookies
  + Locate the base href tag to fix some locations
  + Changed User-Agent (Helps on some sites to get HTML instead of JS)
  + Reduced HTML code limit from 512KB to 384KB
  + Allow some large icons higer-up in the sort
  + Allow GIF images
  + Ignore cookie_store and hyper::client debug messages
This commit is contained in:
BlackDex 2021-05-16 15:29:13 +02:00
parent aba5b234af
commit f270f2ed65
4 changed files with 272 additions and 112 deletions

198
Cargo.lock generated
View File

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"quote 1.0.9", "quote 1.0.9",
"wasm-bindgen-macro-support", "wasm-bindgen-macro-support",
@ -3201,9 +3287,9 @@ dependencies = [
[[package]] [[package]]
name = "wasm-bindgen-macro-support" name = "wasm-bindgen-macro-support"
version = "0.2.73" version = "0.2.74"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d53739ff08c8a68b0fdbcd54c372b8ab800b1449ab3c9d706503bc7dd1621b2c" checksum = "be2241542ff3d9f241f5e2cb6dd09b37efe786df8851c54957683a49f0987a97"
dependencies = [ dependencies = [
"proc-macro2 1.0.26", "proc-macro2 1.0.26",
"quote 1.0.9", "quote 1.0.9",
@ -3214,15 +3300,15 @@ dependencies = [
[[package]] [[package]]
name = "wasm-bindgen-shared" name = "wasm-bindgen-shared"
version = "0.2.73" version = "0.2.74"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d9a543ae66aa233d14bb765ed9af4a33e81b8b58d1584cf1b47ff8cd0b9e4489" checksum = "d7cff876b8f18eed75a66cf49b65e7f967cb354a7aa16003fb55dbfd25b44b4f"
[[package]] [[package]]
name = "web-sys" name = "web-sys"
version = "0.3.50" version = "0.3.51"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a905d57e488fec8861446d3393670fb50d27a262344013181c2cdf9fff5481be" checksum = "e828417b379f3df7111d3a2a9e5753706cae29c41f7c4029ee9fd77f3e09e582"
dependencies = [ dependencies = [
"js-sys", "js-sys",
"wasm-bindgen", "wasm-bindgen",
@ -3345,7 +3431,7 @@ dependencies = [
"hmac 0.10.1", "hmac 0.10.1",
"rand 0.8.3", "rand 0.8.3",
"reqwest", "reqwest",
"sha-1 0.9.5", "sha-1 0.9.6",
"threadpool", "threadpool",
"url 1.7.2", "url 1.7.2",
] ]

View File

@ -32,7 +32,13 @@ rocket = { version = "0.5.0-dev", features = ["tls"], default-features = false }
rocket_contrib = "0.5.0-dev" rocket_contrib = "0.5.0-dev"
# HTTP client # HTTP client
reqwest = { version = "0.11.3", features = ["blocking", "json", "gzip", "brotli", "socks"] } reqwest = { version = "0.11.3", features = ["blocking", "json", "gzip", "brotli", "socks", "cookies"] }
# Used for custom short lived cookie jar
cookie = "0.15.0"
cookie_store = "0.15.0"
bytes = "1.0.1"
url = "2.2.2"
# multipart/form-data support # multipart/form-data support
multipart = { version = "0.17.1", features = ["server"], default-features = false } multipart = { version = "0.17.1", features = ["server"], default-features = false }
@ -47,7 +53,7 @@ rmpv = "0.4.7"
chashmap = "2.2.2" chashmap = "2.2.2"
# A generic serialization/deserialization framework # A generic serialization/deserialization framework
serde = { version = "1.0.125", features = ["derive"] } serde = { version = "1.0.126", features = ["derive"] }
serde_json = "1.0.64" serde_json = "1.0.64"
# Logging # Logging
@ -103,7 +109,7 @@ num-derive = "0.3.3"
# Email libraries # Email libraries
tracing = { version = "0.1.26", features = ["log"] } # Needed to have lettre trace logging used when SMTP_DEBUG is enabled. tracing = { version = "0.1.26", features = ["log"] } # Needed to have lettre trace logging used when SMTP_DEBUG is enabled.
lettre = { version = "0.10.0-beta.4", features = ["smtp-transport", "builder", "serde", "native-tls", "hostname", "tracing"], default-features = false } lettre = { version = "0.10.0-rc.1", features = ["smtp-transport", "builder", "serde", "native-tls", "hostname", "tracing"], default-features = false }
# Template library # Template library
handlebars = { version = "3.5.5", features = ["dir_source"] } handlebars = { version = "3.5.5", features = ["dir_source"] }
@ -137,7 +143,7 @@ rocket = { git = 'https://github.com/SergioBenitez/Rocket', rev = '263e39b5b429d
rocket_contrib = { git = 'https://github.com/SergioBenitez/Rocket', rev = '263e39b5b429de1913ce7e3036575a7b4d88b6d7' } rocket_contrib = { git = 'https://github.com/SergioBenitez/Rocket', rev = '263e39b5b429de1913ce7e3036575a7b4d88b6d7' }
# For favicon extraction from main website # For favicon extraction from main website
data-url = { git = 'https://github.com/servo/rust-url', package="data-url", rev = '540ede02d0771824c0c80ff9f57fe8eff38b1291' } data-url = { git = 'https://github.com/servo/rust-url', package="data-url", rev = 'eb7330b5296c0d43816d1346211b74182bb4ae37' }
# The maintainer of the `job_scheduler` crate doesn't seem to have responded # The maintainer of the `job_scheduler` crate doesn't seem to have responded
# to any issues or PRs for almost a year (as of April 2021). This hopefully # to any issues or PRs for almost a year (as of April 2021). This hopefully

View File

@ -3,14 +3,14 @@ use std::{
fs::{create_dir_all, remove_file, symlink_metadata, File}, fs::{create_dir_all, remove_file, symlink_metadata, File},
io::prelude::*, io::prelude::*,
net::{IpAddr, ToSocketAddrs}, net::{IpAddr, ToSocketAddrs},
sync::RwLock, sync::{Arc, RwLock},
time::{Duration, SystemTime}, time::{Duration, SystemTime},
}; };
use once_cell::sync::Lazy; use once_cell::sync::Lazy;
use regex::Regex; use regex::Regex;
use reqwest::{blocking::Client, blocking::Response, header, Url}; use reqwest::{blocking::Client, blocking::Response, header};
use rocket::{http::ContentType, http::Cookie, response::Content, Route}; use rocket::{http::ContentType, response::Content, Route};
use crate::{ use crate::{
error::Error, error::Error,
@ -25,19 +25,17 @@ pub fn routes() -> Vec<Route> {
static CLIENT: Lazy<Client> = Lazy::new(|| { static CLIENT: Lazy<Client> = Lazy::new(|| {
// Generate the default headers // Generate the default headers
let mut default_headers = header::HeaderMap::new(); let mut default_headers = header::HeaderMap::new();
default_headers.insert(header::USER_AGENT, header::HeaderValue::from_static("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.1 Safari/605.1.15")); default_headers
default_headers.insert(header::ACCEPT_LANGUAGE, header::HeaderValue::from_static("en-US,en;q=0.8")); .insert(header::USER_AGENT, header::HeaderValue::from_static("Links (2.22; Linux X86_64; GNU C; text)"));
default_headers
.insert(header::ACCEPT, header::HeaderValue::from_static("text/html, text/*;q=0.5, image/*, */*;q=0.1"));
default_headers.insert(header::ACCEPT_LANGUAGE, header::HeaderValue::from_static("en,*;q=0.1"));
default_headers.insert(header::CACHE_CONTROL, header::HeaderValue::from_static("no-cache")); default_headers.insert(header::CACHE_CONTROL, header::HeaderValue::from_static("no-cache"));
default_headers.insert(header::PRAGMA, header::HeaderValue::from_static("no-cache")); default_headers.insert(header::PRAGMA, header::HeaderValue::from_static("no-cache"));
default_headers.insert(
header::ACCEPT,
header::HeaderValue::from_static(
"text/html,application/xhtml+xml,application/xml; q=0.9,image/webp,image/apng,*/*;q=0.8",
),
);
// Reuse the client between requests // Reuse the client between requests
get_reqwest_client_builder() get_reqwest_client_builder()
.cookie_provider(Arc::new(Jar::default()))
.timeout(Duration::from_secs(CONFIG.icon_download_timeout())) .timeout(Duration::from_secs(CONFIG.icon_download_timeout()))
.default_headers(default_headers) .default_headers(default_headers)
.build() .build()
@ -80,7 +78,7 @@ fn is_valid_domain(domain: &str) -> bool {
const ALLOWED_CHARS: &str = "_-."; const ALLOWED_CHARS: &str = "_-.";
// If parsing the domain fails using Url, it will not work with reqwest. // If parsing the domain fails using Url, it will not work with reqwest.
if let Err(parse_error) = Url::parse(format!("https://{}", domain).as_str()) { if let Err(parse_error) = url::Url::parse(format!("https://{}", domain).as_str()) {
debug!("Domain parse error: '{}' - {:?}", domain, parse_error); debug!("Domain parse error: '{}' - {:?}", domain, parse_error);
return false; return false;
} else if domain.is_empty() } else if domain.is_empty()
@ -360,7 +358,51 @@ impl Icon {
} }
} }
fn get_favicons_node(node: &std::rc::Rc<markup5ever_rcdom::Node>, icons: &mut Vec<Icon>, url: &Url) { /// Iterates over the HTML document to find <base href="http://domain.tld">
/// When found it will stop the iteration and the found base href will be shared deref via `base_href`.
///
/// # Arguments
/// * `node` - A Parsed HTML document via html5ever::parse_document()
/// * `base_href` - a mutable url::Url which will be overwritten when a base href tag has been found.
///
fn get_base_href(node: &std::rc::Rc<markup5ever_rcdom::Node>, base_href: &mut url::Url) -> bool {
if let markup5ever_rcdom::NodeData::Element {
name,
attrs,
..
} = &node.data
{
if name.local.as_ref() == "base" {
let attrs = attrs.borrow();
for attr in attrs.iter() {
let attr_name = attr.name.local.as_ref();
let attr_value = attr.value.as_ref();
if attr_name == "href" {
debug!("Found base href: {}", attr_value);
*base_href = match base_href.join(attr_value) {
Ok(href) => href,
_ => base_href.clone(),
};
return true;
}
}
return true;
}
}
// TODO: Might want to limit the recursion depth?
for child in node.children.borrow().iter() {
// Check if we got a true back and stop the iter.
// This means we found a <base> tag and can stop processing the html.
if get_base_href(child, base_href) {
return true;
}
}
false
}
fn get_favicons_node(node: &std::rc::Rc<markup5ever_rcdom::Node>, icons: &mut Vec<Icon>, url: &url::Url) {
if let markup5ever_rcdom::NodeData::Element { if let markup5ever_rcdom::NodeData::Element {
name, name,
attrs, attrs,
@ -406,12 +448,11 @@ fn get_favicons_node(node: &std::rc::Rc<markup5ever_rcdom::Node>, icons: &mut Ve
struct IconUrlResult { struct IconUrlResult {
iconlist: Vec<Icon>, iconlist: Vec<Icon>,
cookies: String,
referer: String, referer: String,
} }
/// Returns a Result/Tuple which holds a Vector IconList and a string which holds the cookies from the last response. /// Returns a IconUrlResult which holds a Vector IconList and a string which holds the referer.
/// There will always be a result with a string which will contain https://example.com/favicon.ico and an empty string for the cookies. /// There will always two items within the iconlist which holds http(s)://domain.tld/favicon.ico.
/// This does not mean that that location does exists, but it is the default location browser use. /// This does not mean that that location does exists, but it is the default location browser use.
/// ///
/// # Argument /// # Argument
@ -419,8 +460,8 @@ struct IconUrlResult {
/// ///
/// # Example /// # Example
/// ``` /// ```
/// let (mut iconlist, cookie_str) = get_icon_url("github.com")?; /// let icon_result = get_icon_url("github.com")?;
/// let (mut iconlist, cookie_str) = get_icon_url("gitlab.com")?; /// let icon_result = get_icon_url("vaultwarden.discourse.group")?;
/// ``` /// ```
fn get_icon_url(domain: &str) -> Result<IconUrlResult, Error> { fn get_icon_url(domain: &str) -> Result<IconUrlResult, Error> {
// Default URL with secure and insecure schemes // Default URL with secure and insecure schemes
@ -468,32 +509,12 @@ fn get_icon_url(domain: &str) -> Result<IconUrlResult, Error> {
// Create the iconlist // Create the iconlist
let mut iconlist: Vec<Icon> = Vec::new(); let mut iconlist: Vec<Icon> = Vec::new();
let mut referer = String::from("");
// Create the cookie_str to fill it all the cookies from the response
// These cookies can be used to request/download the favicon image.
// Some sites have extra security in place with for example XSRF Tokens.
let mut cookie_str = "".to_string();
let mut referer = "".to_string();
if let Ok(content) = resp { if let Ok(content) = resp {
// Extract the URL from the respose in case redirects occured (like @ gitlab.com) // Extract the URL from the respose in case redirects occured (like @ gitlab.com)
let url = content.url().clone(); let url = content.url().clone();
// Get all the cookies and pass it on to the next function.
// Needed for XSRF Cookies for example (like @ mijn.ing.nl)
let raw_cookies = content.headers().get_all("set-cookie");
cookie_str = raw_cookies
.iter()
.filter_map(|raw_cookie| raw_cookie.to_str().ok())
.map(|cookie_str| {
if let Ok(cookie) = Cookie::parse(cookie_str) {
format!("{}={}; ", cookie.name(), cookie.value())
} else {
String::new()
}
})
.collect::<String>();
// Set the referer to be used on the final request, some sites check this. // Set the referer to be used on the final request, some sites check this.
// Mostly used to prevent direct linking and other security resons. // Mostly used to prevent direct linking and other security resons.
referer = url.as_str().to_string(); referer = url.as_str().to_string();
@ -501,16 +522,17 @@ fn get_icon_url(domain: &str) -> Result<IconUrlResult, Error> {
// Add the default favicon.ico to the list with the domain the content responded from. // Add the default favicon.ico to the list with the domain the content responded from.
iconlist.push(Icon::new(35, String::from(url.join("/favicon.ico").unwrap()))); iconlist.push(Icon::new(35, String::from(url.join("/favicon.ico").unwrap())));
// 512KB should be more than enough for the HTML, though as we only really need // 384KB should be more than enough for the HTML, though as we only really need the HTML header.
// the HTML header, it could potentially be reduced even further let mut limited_reader = content.take(384 * 1024);
let mut limited_reader = content.take(512 * 1024);
use html5ever::tendril::TendrilSink; use html5ever::tendril::TendrilSink;
let dom = html5ever::parse_document(markup5ever_rcdom::RcDom::default(), Default::default()) let dom = html5ever::parse_document(markup5ever_rcdom::RcDom::default(), Default::default())
.from_utf8() .from_utf8()
.read_from(&mut limited_reader)?; .read_from(&mut limited_reader)?;
get_favicons_node(&dom.document, &mut iconlist, &url); let mut base_url: url::Url = url;
get_base_href(&dom.document, &mut base_url);
get_favicons_node(&dom.document, &mut iconlist, &base_url);
} else { } else {
// Add the default favicon.ico to the list with just the given domain // Add the default favicon.ico to the list with just the given domain
iconlist.push(Icon::new(35, format!("{}/favicon.ico", ssldomain))); iconlist.push(Icon::new(35, format!("{}/favicon.ico", ssldomain)));
@ -523,24 +545,20 @@ fn get_icon_url(domain: &str) -> Result<IconUrlResult, Error> {
// There always is an icon in the list, so no need to check if it exists, and just return the first one // There always is an icon in the list, so no need to check if it exists, and just return the first one
Ok(IconUrlResult { Ok(IconUrlResult {
iconlist, iconlist,
cookies: cookie_str,
referer, referer,
}) })
} }
fn get_page(url: &str) -> Result<Response, Error> { fn get_page(url: &str) -> Result<Response, Error> {
get_page_with_cookies(url, "", "") get_page_with_referer(url, "")
} }
fn get_page_with_cookies(url: &str, cookie_str: &str, referer: &str) -> Result<Response, Error> { fn get_page_with_referer(url: &str, referer: &str) -> Result<Response, Error> {
if is_domain_blacklisted(Url::parse(url).unwrap().host_str().unwrap_or_default()) { if is_domain_blacklisted(url::Url::parse(url).unwrap().host_str().unwrap_or_default()) {
err!("Favicon rel linked to a blacklisted domain!"); err!("Favicon rel linked to a blacklisted domain!");
} }
let mut client = CLIENT.get(url); let mut client = CLIENT.get(url);
if !cookie_str.is_empty() {
client = client.header("Cookie", cookie_str)
}
if !referer.is_empty() { if !referer.is_empty() {
client = client.header("Referer", referer) client = client.header("Referer", referer)
} }
@ -573,7 +591,7 @@ fn get_icon_priority(href: &str, sizes: Option<&str>) -> u8 {
1 1
} else if width == 64 { } else if width == 64 {
2 2
} else if (24..=128).contains(&width) { } else if (24..=192).contains(&width) {
3 3
} else if width == 16 { } else if width == 16 {
4 4
@ -661,7 +679,7 @@ fn download_icon(domain: &str) -> Result<(Vec<u8>, Option<&str>), Error> {
_ => warn!("Extracted icon from data:image uri is invalid"), _ => warn!("Extracted icon from data:image uri is invalid"),
}; };
} else { } else {
match get_page_with_cookies(&icon.href, &icon_result.cookies, &icon_result.referer) { match get_page_with_referer(&icon.href, &icon_result.referer) {
Ok(mut res) => { Ok(mut res) => {
res.copy_to(&mut buffer)?; res.copy_to(&mut buffer)?;
// Check if the icon type is allowed, else try an icon from the list. // Check if the icon type is allowed, else try an icon from the list.
@ -706,7 +724,54 @@ fn get_icon_type(bytes: &[u8]) -> Option<&'static str> {
[0, 0, 1, 0, ..] => Some("x-icon"), [0, 0, 1, 0, ..] => Some("x-icon"),
[82, 73, 70, 70, ..] => Some("webp"), [82, 73, 70, 70, ..] => Some("webp"),
[255, 216, 255, ..] => Some("jpeg"), [255, 216, 255, ..] => Some("jpeg"),
[71, 73, 70, 56, ..] => Some("gif"),
[66, 77, ..] => Some("bmp"), [66, 77, ..] => Some("bmp"),
_ => None, _ => None,
} }
} }
/// This is an implementation of the default Cookie Jar from Reqwest and reqwest_cookie_store build by pfernie.
/// The default cookie jar used by Reqwest keeps all the cookies based upon the Max-Age or Expires which could be a long time.
/// That could be used for tracking, to prevent this we force the lifespan of the cookies to always be max two minutes.
/// A Cookie Jar is needed because some sites force a redirect with cookies to verify if a request uses cookies or not.
use cookie_store::CookieStore;
#[derive(Default)]
pub struct Jar(RwLock<CookieStore>);
impl reqwest::cookie::CookieStore for Jar {
fn set_cookies(&self, cookie_headers: &mut dyn Iterator<Item = &header::HeaderValue>, url: &url::Url) {
use cookie::{Cookie as RawCookie, ParseError as RawCookieParseError};
use time::Duration;
let mut cookie_store = self.0.write().unwrap();
let cookies = cookie_headers.filter_map(|val| {
std::str::from_utf8(val.as_bytes())
.map_err(RawCookieParseError::from)
.and_then(RawCookie::parse)
.map(|mut c| {
c.set_expires(None);
c.set_max_age(Some(Duration::minutes(2)));
c.into_owned()
})
.ok()
});
cookie_store.store_response_cookies(cookies, url);
}
fn cookies(&self, url: &url::Url) -> Option<header::HeaderValue> {
use bytes::Bytes;
let cookie_store = self.0.read().unwrap();
let s = cookie_store
.get_request_values(url)
.map(|(name, value)| format!("{}={}", name, value))
.collect::<Vec<_>>()
.join("; ");
if s.is_empty() {
return None;
}
header::HeaderValue::from_maybe_shared(Bytes::from(s)).ok()
}
}

View File

@ -122,6 +122,9 @@ fn init_logging(level: log::LevelFilter) -> Result<(), fern::InitError> {
// Never show html5ever and hyper::proto logs, too noisy // Never show html5ever and hyper::proto logs, too noisy
.level_for("html5ever", log::LevelFilter::Off) .level_for("html5ever", log::LevelFilter::Off)
.level_for("hyper::proto", log::LevelFilter::Off) .level_for("hyper::proto", log::LevelFilter::Off)
.level_for("hyper::client", log::LevelFilter::Off)
// Prevent cookie_store logs
.level_for("cookie_store", log::LevelFilter::Off)
.chain(std::io::stdout()); .chain(std::io::stdout());
// Enable smtp debug logging only specifically for smtp when need. // Enable smtp debug logging only specifically for smtp when need.