mirror of
https://github.com/bitcoinresearchkit/brk.git
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nym21
227 lines
7.5 KiB
Rust
227 lines
7.5 KiB
Rust
use std::path::Path;
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use axum::{
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body::Body,
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http::{header, HeaderMap, Response},
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response::IntoResponse,
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};
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use chrono::{DateTime, Timelike, Utc};
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use log::info;
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use reqwest::{
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header::{HOST, IF_MODIFIED_SINCE},
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StatusCode,
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};
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const STALE_IF_ERROR: u64 = 30_000_000; // 1 Year ish
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const MODIFIED_SINCE_FORMAT: &str = "%a, %d %b %Y %H:%M:%S GMT";
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pub trait HeaderMapUtils {
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fn get_scheme(&self) -> &str;
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fn get_host(&self) -> &str;
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fn check_if_host_is_any_local(&self) -> bool;
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fn check_if_host_is_0000(&self) -> bool;
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fn check_if_host_is_localhost(&self) -> bool;
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fn insert_cors(&mut self);
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fn get_if_modified_since(&self) -> Option<DateTime<Utc>>;
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fn check_if_modified_since(
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&self,
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path: &Path,
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) -> color_eyre::Result<(DateTime<Utc>, Option<Response<Body>>)>;
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fn insert_cache_control_immutable(&mut self);
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#[allow(unused)]
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fn insert_cache_control_revalidate(&mut self, max_age: u64, stale_while_revalidate: u64);
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fn insert_last_modified(&mut self, date: DateTime<Utc>);
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fn insert_content_disposition_attachment(&mut self);
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fn insert_content_type(&mut self, path: &Path);
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fn insert_content_type_image_icon(&mut self);
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fn insert_content_type_image_jpeg(&mut self);
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fn insert_content_type_image_png(&mut self);
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fn insert_content_type_application_javascript(&mut self);
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fn insert_content_type_application_json(&mut self);
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fn insert_content_type_application_manifest_json(&mut self);
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fn insert_content_type_application_pdf(&mut self);
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fn insert_content_type_text_css(&mut self);
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fn insert_content_type_text_csv(&mut self);
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fn insert_content_type_text_html(&mut self);
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fn insert_content_type_text_plain(&mut self);
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fn insert_content_type_font_woff2(&mut self);
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}
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impl HeaderMapUtils for HeaderMap {
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fn get_scheme(&self) -> &str {
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if self.check_if_host_is_any_local() {
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"http"
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} else {
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"https"
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}
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}
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fn get_host(&self) -> &str {
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self[HOST].to_str().unwrap()
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}
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fn check_if_host_is_any_local(&self) -> bool {
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self.check_if_host_is_localhost() || self.check_if_host_is_0000()
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}
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fn check_if_host_is_0000(&self) -> bool {
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self.get_host().contains("0.0.0.0")
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}
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fn check_if_host_is_localhost(&self) -> bool {
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self.get_host().contains("localhost")
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}
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fn insert_cors(&mut self) {
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self.insert(header::ACCESS_CONTROL_ALLOW_ORIGIN, "*".parse().unwrap());
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self.insert(header::ACCESS_CONTROL_ALLOW_HEADERS, "*".parse().unwrap());
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}
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fn insert_cache_control_immutable(&mut self) {
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self.insert(
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header::CACHE_CONTROL,
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format!("public, max-age=604800, immutable, stale-if-error={STALE_IF_ERROR}")
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.parse()
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.unwrap(),
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);
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}
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fn insert_content_disposition_attachment(&mut self) {
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self.insert(header::CONTENT_DISPOSITION, "attachment".parse().unwrap());
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}
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fn insert_cache_control_revalidate(&mut self, max_age: u64, stale_while_revalidate: u64) {
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self.insert(
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header::CACHE_CONTROL,
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format!(
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"public, max-age={max_age}, stale-while-revalidate={stale_while_revalidate}, stale-if-error={STALE_IF_ERROR}")
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.parse()
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.unwrap(),
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);
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}
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fn insert_last_modified(&mut self, date: DateTime<Utc>) {
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let formatted = date.format(MODIFIED_SINCE_FORMAT).to_string();
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self.insert(header::LAST_MODIFIED, formatted.parse().unwrap());
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}
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fn check_if_modified_since(
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&self,
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path: &Path,
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) -> color_eyre::Result<(DateTime<Utc>, Option<Response<Body>>)> {
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let time = path.metadata()?.modified()?;
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let date: DateTime<Utc> = time.into();
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let date = date.with_nanosecond(0).unwrap();
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let mut response_opt = None;
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if let Some(if_modified_since) = self.get_if_modified_since() {
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if if_modified_since == date {
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let mut response = (StatusCode::NOT_MODIFIED, "").into_response();
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let headers = response.headers_mut();
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headers.insert_cors();
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response_opt.replace(response);
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}
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}
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Ok((date, response_opt))
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}
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fn get_if_modified_since(&self) -> Option<DateTime<Utc>> {
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if let Some(modified_since) = self.get(IF_MODIFIED_SINCE) {
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if let Ok(modified_since) = modified_since.to_str() {
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let date = DateTime::parse_from_str(
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&format!("{modified_since} +00:00"),
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&format!("{MODIFIED_SINCE_FORMAT} %z"),
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);
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if let Ok(x) = date {
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return Some(x.to_utc());
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}
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}
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}
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None
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}
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// https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types
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fn insert_content_type(&mut self, path: &Path) {
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match path.extension().unwrap().to_str().unwrap() {
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"js" => self.insert_content_type_application_javascript(),
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"json" => self.insert_content_type_application_json(),
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"html" => self.insert_content_type_text_html(),
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"css" => self.insert_content_type_text_css(),
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"toml" | "txt" => self.insert_content_type_text_plain(),
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"pdf" => self.insert_content_type_application_pdf(),
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"woff2" => self.insert_content_type_font_woff2(),
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"ico" => self.insert_content_type_image_icon(),
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"jpg" | "jpeg" => self.insert_content_type_image_jpeg(),
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"png" => self.insert_content_type_image_png(),
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"webmanifest" => self.insert_content_type_application_manifest_json(),
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extension => {
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info!("Extension unsupported: {extension}");
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panic!()
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}
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}
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}
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fn insert_content_type_image_icon(&mut self) {
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self.insert(header::CONTENT_TYPE, "image/x-icon".parse().unwrap());
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}
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fn insert_content_type_image_jpeg(&mut self) {
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self.insert(header::CONTENT_TYPE, "image/jpeg".parse().unwrap());
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}
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fn insert_content_type_image_png(&mut self) {
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self.insert(header::CONTENT_TYPE, "image/png".parse().unwrap());
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}
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fn insert_content_type_application_javascript(&mut self) {
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self.insert(
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header::CONTENT_TYPE,
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"application/javascript".parse().unwrap(),
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);
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}
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fn insert_content_type_application_json(&mut self) {
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self.insert(header::CONTENT_TYPE, "application/json".parse().unwrap());
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}
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fn insert_content_type_application_manifest_json(&mut self) {
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self.insert(
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header::CONTENT_TYPE,
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"application/manifest+json".parse().unwrap(),
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);
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}
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fn insert_content_type_application_pdf(&mut self) {
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self.insert(header::CONTENT_TYPE, "application/pdf".parse().unwrap());
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}
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fn insert_content_type_text_css(&mut self) {
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self.insert(header::CONTENT_TYPE, "text/css".parse().unwrap());
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}
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fn insert_content_type_text_csv(&mut self) {
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self.insert(header::CONTENT_TYPE, "text/csv".parse().unwrap());
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}
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fn insert_content_type_text_html(&mut self) {
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self.insert(header::CONTENT_TYPE, "text/html".parse().unwrap());
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}
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fn insert_content_type_text_plain(&mut self) {
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self.insert(header::CONTENT_TYPE, "text/plain".parse().unwrap());
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}
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fn insert_content_type_font_woff2(&mut self) {
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self.insert(header::CONTENT_TYPE, "font/woff2".parse().unwrap());
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}
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}
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