slonk/bingus-blog
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Merge branch 'refactor'

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This commit is contained in:
slonkazoid 2024-06-13 23:19:16 +03:00
commit 1a6dcc2c17
Signed by: slonk
SSH key fingerprint: SHA256:tbZfJX4IOvZ0LGWOWu5Ijo8jfMPi78TU7x1VoEeCIjM
15 changed files with 777 additions and 578 deletions
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35
Cargo.lock generated
View file

@ -302,6 +302,7 @@ dependencies = [
"color-eyre",
"comrak",
"console-subscriber",
"derive_more",
"fronma",
"rss",
"scc",
@ -486,6 +487,12 @@ dependencies = [
"tracing-subscriber",
]
[[package]]
name = "convert_case"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
[[package]]
name = "crc32fast"
version = "1.4.0"
@ -585,6 +592,19 @@ dependencies = [
"syn 1.0.109",
]
[[package]]
name = "derive_more"
version = "0.99.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4fb810d30a7c1953f91334de7244731fc3f3c10d7fe163338a35b9f640960321"
dependencies = [
"convert_case",
"proc-macro2",
"quote",
"rustc_version",
"syn 1.0.109",
]
[[package]]
name = "deunicode"
version = "1.4.4"
@ -1435,6 +1455,15 @@ version = "0.1.23"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
[[package]]
name = "rustc_version"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
dependencies = [
"semver",
]
[[package]]
name = "rustversion"
version = "1.0.15"
@ -1472,6 +1501,12 @@ version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b84345e4c9bd703274a082fb80caaa99b7612be48dfaa1dd9266577ec412309d"
[[package]]
name = "semver"
version = "1.0.23"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "61697e0a1c7e512e84a621326239844a24d8207b4669b41bc18b32ea5cbf988b"
[[package]]
name = "serde"
version = "1.0.198"

1
Cargo.toml
View file

@ -36,6 +36,7 @@ comrak = { version = "0.22.0", features = [
"syntect",
], default-features = false }
console-subscriber = { version = "0.2.0", optional = true }
derive_more = "0.99.17"
fronma = "0.2.0"
rss = "2.0.7"
scc = { version = "2.1.0", features = ["serde"] }

15
README.md
View file

@ -22,7 +22,7 @@ blazingly fast markdown blog software written in rust memory safe
- [ ] ^ replace HashMap with HashCache once i implement [this](https://github.com/wvwwvwwv/scalable-concurrent-containers/issues/139)
- [x] (de)compress cache with zstd on startup/shutdown
- [ ] make date parsing less strict
- [ ] make date formatting better
- [x] make date formatting better
- [ ] date formatting respects user timezone
- [x] clean up imports and require less features
- [ ] improve home page
@ -36,9 +36,16 @@ blazingly fast markdown blog software written in rust memory safe
the default configuration with comments looks like this
```toml
title = "bingus-blog" # title of the website
description = "blazingly fast markdown blog software written in rust memory safe" # description of the website
raw_access = true # allow users to see the raw markdown of a post
title = "bingus-blog" # title of the blog
# description of the blog
description = "blazingly fast markdown blog software written in rust memory safe"
markdown_access = true # allow users to see the raw markdown of a post
# endpoint: /posts/<name>.md
date_format = "RFC3339" # format string used to format dates in the backend
# it's highly recommended to leave this as default,
# so the date can be formatted by the browser.
# format: https://docs.rs/chrono/latest/chrono/format/strftime/index.html#specifiers
js_enable = true # enable javascript (required for above)
[rss]
enable = false # serve an rss field under /feed.xml

198
src/app.rs Normal file
View file

@ -0,0 +1,198 @@
use std::sync::Arc;
use std::time::Duration;
use askama_axum::Template;
use axum::extract::{Path, Query, State};
use axum::http::header::CONTENT_TYPE;
use axum::http::{header, Request};
use axum::response::{IntoResponse, Redirect, Response};
use axum::routing::get;
use axum::{Json, Router};
use rss::{Category, ChannelBuilder, ItemBuilder};
use serde::Deserialize;
use tower_http::services::ServeDir;
use tower_http::trace::TraceLayer;
use tracing::{info, info_span, Span};
use crate::config::{Config, DateFormat};
use crate::error::{AppError, AppResult};
use crate::filters;
use crate::post::{MarkdownPosts, PostManager, PostMetadata, RenderStats, ReturnedPost};
#[derive(Clone)]
pub struct AppState {
pub config: Arc<Config>,
pub posts: Arc<MarkdownPosts<Arc<Config>>>,
}
#[derive(Template)]
#[template(path = "index.html")]
struct IndexTemplate {
title: String,
description: String,
posts: Vec<PostMetadata>,
df: DateFormat,
js: bool,
}
#[derive(Template)]
#[template(path = "post.html")]
struct PostTemplate {
meta: PostMetadata,
rendered: String,
rendered_in: RenderStats,
markdown_access: bool,
df: DateFormat,
js: bool,
}
#[derive(Deserialize)]
struct QueryParams {
tag: Option<String>,
#[serde(rename = "n")]
num_posts: Option<usize>,
}
async fn index(
State(AppState { config, posts }): State<AppState>,
Query(query): Query<QueryParams>,
) -> AppResult<IndexTemplate> {
let posts = posts
.get_max_n_post_metadata_with_optional_tag_sorted(query.num_posts, query.tag.as_ref())
.await?;
Ok(IndexTemplate {
title: config.title.clone(),
description: config.description.clone(),
posts,
df: config.date_format.clone(),
js: config.js_enable,
})
}
async fn all_posts(
State(AppState { posts, .. }): State<AppState>,
Query(query): Query<QueryParams>,
) -> AppResult<Json<Vec<PostMetadata>>> {
let posts = posts
.get_max_n_post_metadata_with_optional_tag_sorted(query.num_posts, query.tag.as_ref())
.await?;
Ok(Json(posts))
}
async fn rss(
State(AppState { config, posts }): State<AppState>,
Query(query): Query<QueryParams>,
) -> AppResult<Response> {
if !config.rss.enable {
return Err(AppError::RssDisabled);
}
let posts = posts
.get_all_posts(|metadata, _| {
!query
.tag
.as_ref()
.is_some_and(|tag| !metadata.tags.contains(tag))
})
.await?;
let mut channel = ChannelBuilder::default();
channel
.title(&config.title)
.link(config.rss.link.to_string())
.description(&config.description);
//TODO: .language()
for (metadata, content, _) in posts {
channel.item(
ItemBuilder::default()
.title(metadata.title)
.description(metadata.description)
.author(metadata.author)
.categories(
metadata
.tags
.into_iter()
.map(|tag| Category {
name: tag,
domain: None,
})
.collect::<Vec<Category>>(),
)
.pub_date(metadata.created_at.map(|date| date.to_rfc2822()))
.content(content)
.link(
config
.rss
.link
.join(&format!("/posts/{}", metadata.name))?
.to_string(),
)
.build(),
);
}
let body = channel.build().to_string();
drop(channel);
Ok(([(header::CONTENT_TYPE, "text/xml")], body).into_response())
}
async fn post(
State(AppState { config, posts }): State<AppState>,
Path(name): Path<String>,
) -> AppResult<Response> {
match posts.get_post(&name).await? {
ReturnedPost::Rendered(meta, rendered, rendered_in) => {
let page = PostTemplate {
meta,
rendered,
rendered_in,
markdown_access: config.markdown_access,
df: config.date_format.clone(),
js: config.js_enable,
};
Ok(page.into_response())
}
ReturnedPost::Raw(body, content_type) => {
Ok(([(CONTENT_TYPE, content_type)], body).into_response())
}
}
}
pub fn new(config: &Config) -> Router<AppState> {
Router::new()
.route("/", get(index))
.route(
"/post/:name",
get(
|Path(name): Path<String>| async move { Redirect::to(&format!("/posts/{}", name)) },
),
)
.route("/posts/:name", get(post))
.route("/posts", get(all_posts))
.route("/feed.xml", get(rss))
.nest_service(
"/static",
ServeDir::new(&config.dirs._static).precompressed_gzip(),
)
.nest_service("/media", ServeDir::new(&config.dirs.media))
.layer(
TraceLayer::new_for_http()
.make_span_with(|request: &Request<_>| {
info_span!(
"request",
method = ?request.method(),
path = ?request.uri().path(),
)
})
.on_response(|response: &Response<_>, duration: Duration, span: &Span| {
let _ = span.enter();
let status = response.status();
info!(?status, ?duration, "response");
}),
)
}

28
src/config.rs
View file

@ -1,11 +1,11 @@
use std::env;
use std::net::{IpAddr, Ipv4Addr};
use std::net::{IpAddr, Ipv6Addr};
use std::path::PathBuf;
use color_eyre::eyre::{bail, Context, Result};
use serde::{Deserialize, Serialize};
use tokio::io::{AsyncReadExt, AsyncWriteExt};
use tracing::{error, info};
use tracing::{error, info, instrument};
use url::Url;
use crate::ranged_i128_visitor::RangedI128Visitor;
@ -49,6 +49,8 @@ pub struct HttpConfig {
pub struct DirsConfig {
pub posts: PathBuf,
pub media: PathBuf,
#[serde(rename = "static")]
pub _static: PathBuf,
}
#[derive(Serialize, Deserialize, Debug, Clone)]
@ -57,13 +59,22 @@ pub struct RssConfig {
pub link: Url,
}
#[derive(Serialize, Deserialize, Debug, Clone, Default)]
pub enum DateFormat {
#[default]
RFC3339,
#[serde(untagged)]
Strftime(String),
}
#[derive(Serialize, Deserialize, Debug, Clone)]
#[serde(default)]
pub struct Config {
pub title: String,
pub description: String,
pub raw_access: bool,
pub num_posts: usize,
pub markdown_access: bool,
pub date_format: DateFormat,
pub js_enable: bool,
pub rss: RssConfig,
pub dirs: DirsConfig,
pub http: HttpConfig,
@ -76,8 +87,9 @@ impl Default for Config {
Self {
title: "bingus-blog".into(),
description: "blazingly fast markdown blog software written in rust memory safe".into(),
raw_access: true,
num_posts: 5,
markdown_access: true,
date_format: Default::default(),
js_enable: true,
// i have a love-hate relationship with serde
// it was engimatic at first, but then i started actually using it
// writing my own serialize and deserialize implementations.. spending
@ -101,6 +113,7 @@ impl Default for DirsConfig {
Self {
posts: "posts".into(),
media: "media".into(),
_static: "static".into(),
}
}
}
@ -108,7 +121,7 @@ impl Default for DirsConfig {
impl Default for HttpConfig {
fn default() -> Self {
Self {
host: IpAddr::V4(Ipv4Addr::UNSPECIFIED),
host: IpAddr::V6(Ipv6Addr::UNSPECIFIED),
port: 3000,
}
}
@ -138,6 +151,7 @@ impl Default for CacheConfig {
}
}
#[instrument(name = "config")]
pub async fn load() -> Result<Config> {
let config_file = env::var(format!(
"{}_CONFIG",

24
src/filters.rs
View file

@ -1,11 +1,29 @@
use std::{collections::HashMap, time::Duration};
use std::collections::HashMap;
use std::fmt::Display;
use std::time::Duration;
use chrono::{DateTime, TimeZone};
use crate::config::DateFormat;
use crate::post::PostMetadata;
pub fn date<T: TimeZone>(date: &DateTime<T>) -> Result<String, askama::Error> {
Ok(date.to_rfc3339_opts(chrono::SecondsFormat::Secs, true))
fn format_date<T>(date: &DateTime<T>, date_format: &DateFormat) -> String
where
T: TimeZone,
T::Offset: Display,
{
match date_format {
DateFormat::RFC3339 => date.to_rfc3339_opts(chrono::SecondsFormat::Secs, true),
DateFormat::Strftime(ref format_string) => date.format(format_string).to_string(),
}
}
pub fn date<T>(date: &DateTime<T>, date_format: &DateFormat) -> Result<String, askama::Error>
where
T: TimeZone,
T::Offset: Display,
{
Ok(format_date(date, date_format))
}
pub fn duration(duration: &&Duration) -> Result<String, askama::Error> {

322
src/main.rs
View file

@ -1,5 +1,6 @@
#![feature(let_chains)]
mod app;
mod config;
mod error;
mod filters;
@ -10,184 +11,23 @@ mod ranged_i128_visitor;
mod systemtime_as_secs;
use std::future::IntoFuture;
use std::io::Read;
use std::net::SocketAddr;
use std::process::exit;
use std::sync::Arc;
use std::time::Duration;
use askama_axum::Template;
use axum::extract::{Path, Query, State};
use axum::http::{header, Request};
use axum::response::{IntoResponse, Redirect, Response};
use axum::routing::{get, Router};
use axum::Json;
use color_eyre::eyre::{self, Context};
use error::AppError;
use rss::{Category, ChannelBuilder, ItemBuilder};
use serde::Deserialize;
use tokio::io::{AsyncReadExt, AsyncWriteExt};
use tokio::net::TcpListener;
use tokio::task::JoinSet;
use tokio::{select, signal};
use tokio_util::sync::CancellationToken;
use tower_http::services::ServeDir;
use tower_http::trace::TraceLayer;
use tracing::level_filters::LevelFilter;
use tracing::{debug, error, info, info_span, warn, Span};
use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt, EnvFilter};
use tracing::{debug, info, warn};
use tracing_subscriber::layer::SubscriberExt;
use tracing_subscriber::{util::SubscriberInitExt, EnvFilter};
use crate::config::Config;
use crate::error::{AppResult, PostError};
use crate::post::cache::{Cache, CACHE_VERSION};
use crate::post::{PostManager, PostMetadata, RenderStats};
type ArcState = Arc<AppState>;
#[derive(Clone)]
struct AppState {
pub config: Config,
pub posts: PostManager,
}
#[derive(Template)]
#[template(path = "index.html")]
struct IndexTemplate {
title: String,
description: String,
posts: Vec<PostMetadata>,
rss: bool,
}
#[derive(Template)]
#[template(path = "post.html")]
struct PostTemplate {
meta: PostMetadata,
rendered: String,
rendered_in: RenderStats,
markdown_access: bool,
}
#[derive(Deserialize)]
struct QueryParams {
tag: Option<String>,
#[serde(rename = "n")]
num_posts: Option<usize>,
}
async fn index(
State(state): State<ArcState>,
Query(query): Query<QueryParams>,
) -> AppResult<IndexTemplate> {
let posts = state
.posts
.get_max_n_post_metadata_with_optional_tag_sorted(query.num_posts, query.tag.as_ref())
.await?;
Ok(IndexTemplate {
title: state.config.title.clone(),
description: state.config.description.clone(),
posts,
rss: state.config.rss.enable,
})
}
async fn all_posts(
State(state): State<ArcState>,
Query(query): Query<QueryParams>,
) -> AppResult<Json<Vec<PostMetadata>>> {
let posts = state
.posts
.get_max_n_post_metadata_with_optional_tag_sorted(query.num_posts, query.tag.as_ref())
.await?;
Ok(Json(posts))
}
async fn rss(
State(state): State<ArcState>,
Query(query): Query<QueryParams>,
) -> AppResult<Response> {
if !state.config.rss.enable {
return Err(AppError::RssDisabled);
}
let posts = state
.posts
.get_all_posts_filtered(|metadata, _| {
!query
.tag
.as_ref()
.is_some_and(|tag| !metadata.tags.contains(tag))
})
.await?;
let mut channel = ChannelBuilder::default();
channel
.title(&state.config.title)
.link(state.config.rss.link.to_string())
.description(&state.config.description);
//TODO: .language()
for (metadata, content, _) in posts {
channel.item(
ItemBuilder::default()
.title(metadata.title)
.description(metadata.description)
.author(metadata.author)
.categories(
metadata
.tags
.into_iter()
.map(|tag| Category {
name: tag,
domain: None,
})
.collect::<Vec<Category>>(),
)
.pub_date(metadata.created_at.map(|date| date.to_rfc2822()))
.content(content)
.link(
state
.config
.rss
.link
.join(&format!("/posts/{}", metadata.name))?
.to_string(),
)
.build(),
);
}
let body = channel.build().to_string();
drop(channel);
Ok(([(header::CONTENT_TYPE, "text/xml")], body).into_response())
}
async fn post(State(state): State<ArcState>, Path(name): Path<String>) -> AppResult<Response> {
if name.ends_with(".md") && state.config.raw_access {
let mut file = tokio::fs::OpenOptions::new()
.read(true)
.open(state.config.dirs.posts.join(&name))
.await?;
let mut buf = Vec::new();
file.read_to_end(&mut buf).await?;
Ok(([("content-type", "text/plain")], buf).into_response())
} else {
let post = state.posts.get_post(&name).await?;
let page = PostTemplate {
meta: post.0,
rendered: post.1,
rendered_in: post.2,
markdown_access: state.config.raw_access,
};
Ok(page.into_response())
}
}
use crate::app::AppState;
use crate::post::{MarkdownPosts, PostManager};
#[tokio::main]
async fn main() -> eyre::Result<()> {
@ -204,89 +44,26 @@ async fn main() -> eyre::Result<()> {
.with(tracing_subscriber::fmt::layer())
.init();
let config = config::load()
let config = Arc::new(
config::load()
.await
.context("couldn't load configuration")?;
.context("couldn't load configuration")?,
);
let socket_addr = SocketAddr::new(config.http.host, config.http.port);
let mut tasks = JoinSet::new();
let cancellation_token = CancellationToken::new();
let posts = if config.cache.enable {
if config.cache.persistence
&& tokio::fs::try_exists(&config.cache.file)
.await
.with_context(|| {
format!("failed to check if {} exists", config.cache.file.display())
})?
{
info!("loading cache from file");
let path = &config.cache.file;
let load_cache = async {
let mut cache_file = tokio::fs::File::open(&path)
.await
.context("failed to open cache file")?;
let serialized = if config.cache.compress {
let cache_file = cache_file.into_std().await;
tokio::task::spawn_blocking(move || {
let mut buf = Vec::with_capacity(4096);
zstd::stream::read::Decoder::new(cache_file)?.read_to_end(&mut buf)?;
Ok::<_, std::io::Error>(buf)
})
.await
.context("failed to join blocking thread")?
.context("failed to read cache file")?
} else {
let mut buf = Vec::with_capacity(4096);
cache_file
.read_to_end(&mut buf)
.await
.context("failed to read cache file")?;
buf
};
let mut cache: Cache =
bitcode::deserialize(serialized.as_slice()).context("failed to parse cache")?;
if cache.version() < CACHE_VERSION {
warn!("cache version changed, clearing cache");
cache = Cache::default();
let posts = Arc::new(MarkdownPosts::new(Arc::clone(&config)).await?);
let state = AppState {
config: Arc::clone(&config),
posts: Arc::clone(&posts),
};
Ok::<PostManager, color_eyre::Report>(PostManager::new_with_cache(
config.dirs.posts.clone(),
config.render.clone(),
cache,
))
}
.await;
match load_cache {
Ok(posts) => posts,
Err(err) => {
error!("failed to load cache: {}", err);
info!("using empty cache");
PostManager::new_with_cache(
config.dirs.posts.clone(),
config.render.clone(),
Default::default(),
)
}
}
} else {
PostManager::new_with_cache(
config.dirs.posts.clone(),
config.render.clone(),
Default::default(),
)
}
} else {
PostManager::new(config.dirs.posts.clone(), config.render.clone())
};
let state = Arc::new(AppState { config, posts });
if state.config.cache.enable && state.config.cache.cleanup {
if let Some(t) = state.config.cache.cleanup_interval {
let state = Arc::clone(&state);
if config.cache.enable && config.cache.cleanup {
if let Some(t) = config.cache.cleanup_interval {
let posts = Arc::clone(&posts);
let token = cancellation_token.child_token();
debug!("setting up cleanup task");
tasks.spawn(async move {
@ -295,45 +72,17 @@ async fn main() -> eyre::Result<()> {
select! {
_ = token.cancelled() => break,
_ = interval.tick() => {
state.posts.cleanup().await
posts.cleanup().await
}
}
}
});
} else {
state.posts.cleanup().await;
posts.cleanup().await;
}
}
let app = Router::new()
.route("/", get(index))
.route(
"/post/:name",
get(
|Path(name): Path<String>| async move { Redirect::to(&format!("/posts/{}", name)) },
),
)
.route("/posts/:name", get(post))
.route("/posts", get(all_posts))
.route("/feed.xml", get(rss))
.nest_service("/static", ServeDir::new("static").precompressed_gzip())
.nest_service("/media", ServeDir::new("media"))
.layer(
TraceLayer::new_for_http()
.make_span_with(|request: &Request<_>| {
info_span!(
"request",
method = ?request.method(),
path = ?request.uri().path(),
)
})
.on_response(|response: &Response<_>, duration: Duration, span: &Span| {
let _ = span.enter();
let status = response.status();
info!(?status, ?duration, "response");
}),
)
.with_state(state.clone());
let app = app::new(&config).with_state(state.clone());
let listener = TcpListener::bind(socket_addr)
.await
@ -381,36 +130,7 @@ async fn main() -> eyre::Result<()> {
task.context("failed to join task")?;
}
// write cache to file
let config = &state.config;
let posts = &state.posts;
if config.cache.enable
&& config.cache.persistence
&& let Some(cache) = posts.cache()
{
let path = &config.cache.file;
let serialized = bitcode::serialize(cache).context("failed to serialize cache")?;
let mut cache_file = tokio::fs::File::create(path)
.await
.with_context(|| format!("failed to open cache at {}", path.display()))?;
let compression_level = config.cache.compression_level;
if config.cache.compress {
let cache_file = cache_file.into_std().await;
tokio::task::spawn_blocking(move || {
std::io::Write::write_all(
&mut zstd::stream::write::Encoder::new(cache_file, compression_level)?
.auto_finish(),
&serialized,
)
})
.await
.context("failed to join blocking thread")?
} else {
cache_file.write_all(&serialized).await
}
.context("failed to write cache to file")?;
info!("wrote cache to {}", path.display());
}
drop(state);
Ok::<(), color_eyre::Report>(())
};

34
src/post/cache.rs
View file

@ -1,12 +1,14 @@
use std::hash::{DefaultHasher, Hash, Hasher};
use std::io::Read;
use crate::config::{Config, RenderConfig};
use crate::post::PostMetadata;
use color_eyre::eyre::{self, Context};
use scc::HashMap;
use serde::{Deserialize, Serialize};
use tokio::io::AsyncReadExt;
use tracing::{debug, instrument};
use crate::config::RenderConfig;
use crate::post::PostMetadata;
/// do not persist cache if this version number changed
pub const CACHE_VERSION: u16 = 2;
@ -133,3 +135,29 @@ impl Cache {
self.1
}
}
pub(crate) async fn load_cache(config: &Config) -> Result<Cache, eyre::Report> {
let path = &config.cache.file;
let mut cache_file = tokio::fs::File::open(&path)
.await
.context("failed to open cache file")?;
let serialized = if config.cache.compress {
let cache_file = cache_file.into_std().await;
tokio::task::spawn_blocking(move || {
let mut buf = Vec::with_capacity(4096);
zstd::stream::read::Decoder::new(cache_file)?.read_to_end(&mut buf)?;
Ok::<_, std::io::Error>(buf)
})
.await?
.context("failed to read cache file")?
} else {
let mut buf = Vec::with_capacity(4096);
cache_file
.read_to_end(&mut buf)
.await
.context("failed to read cache file")?;
buf
};
bitcode::deserialize(serialized.as_slice()).context("failed to parse cache")
}

344
src/post/markdown_posts.rs Normal file
View file

@ -0,0 +1,344 @@
use std::collections::BTreeSet;
use std::io::{self, Write};
use std::ops::Deref;
use std::path::Path;
use std::time::Duration;
use std::time::Instant;
use std::time::SystemTime;
use axum::http::HeaderValue;
use chrono::{DateTime, Utc};
use color_eyre::eyre::{self, Context};
use fronma::parser::{parse, ParsedData};
use serde::Deserialize;
use tokio::fs;
use tokio::io::AsyncReadExt;
use tracing::{error, info, warn};
use crate::config::Config;
use crate::markdown_render::render;
use crate::post::cache::{load_cache, Cache, CACHE_VERSION};
use crate::post::{PostError, PostManager, PostMetadata, RenderStats, ReturnedPost};
use crate::systemtime_as_secs::as_secs;
#[derive(Deserialize)]
struct FrontMatter {
pub title: String,
pub description: String,
pub author: String,
pub icon: Option<String>,
pub created_at: Option<DateTime<Utc>>,
pub modified_at: Option<DateTime<Utc>>,
#[serde(default)]
pub tags: BTreeSet<String>,
}
impl FrontMatter {
pub fn into_full(
self,
name: String,
created: Option<SystemTime>,
modified: Option<SystemTime>,
) -> PostMetadata {
PostMetadata {
name,
title: self.title,
description: self.description,
author: self.author,
icon: self.icon,
created_at: self.created_at.or_else(|| created.map(|t| t.into())),
modified_at: self.modified_at.or_else(|| modified.map(|t| t.into())),
tags: self.tags.into_iter().collect(),
}
}
}
pub struct MarkdownPosts<C>
where
C: Deref<Target = Config>,
{
cache: Option<Cache>,
config: C,
}
impl<C> MarkdownPosts<C>
where
C: Deref<Target = Config>,
{
pub async fn new(config: C) -> eyre::Result<MarkdownPosts<C>> {
if config.cache.enable {
if config.cache.persistence && tokio::fs::try_exists(&config.cache.file).await? {
info!("loading cache from file");
let mut cache = load_cache(&config).await.unwrap_or_else(|err| {
error!("failed to load cache: {}", err);
info!("using empty cache");
Default::default()
});
if cache.version() < CACHE_VERSION {
warn!("cache version changed, clearing cache");
cache = Default::default();
};
Ok(Self {
cache: Some(cache),
config,
})
} else {
Ok(Self {
cache: Some(Default::default()),
config,
})
}
} else {
Ok(Self {
cache: None,
config,
})
}
}
async fn parse_and_render(
&self,
name: String,
path: impl AsRef<Path>,
) -> Result<(PostMetadata, String, (Duration, Duration)), PostError> {
let parsing_start = Instant::now();
let mut file = match tokio::fs::OpenOptions::new().read(true).open(&path).await {
Ok(val) => val,
Err(err) => match err.kind() {
io::ErrorKind::NotFound => return Err(PostError::NotFound(name)),
_ => return Err(PostError::IoError(err)),
},
};
let stat = file.metadata().await?;
let modified = stat.modified()?;
let created = stat.created().ok();
let mut content = String::with_capacity(stat.len() as usize);
file.read_to_string(&mut content).await?;
let ParsedData { headers, body } = parse::<FrontMatter>(&content)?;
let metadata = headers.into_full(name.to_owned(), created, Some(modified));
let parsing = parsing_start.elapsed();
let before_render = Instant::now();
let post = render(body, &self.config.render);
let rendering = before_render.elapsed();
if let Some(cache) = self.cache.as_ref() {
cache
.insert(
name.to_string(),
metadata.clone(),
as_secs(&modified),
post.clone(),
&self.config.render,
)
.await
.unwrap_or_else(|err| warn!("failed to insert {:?} into cache", err.0))
};
Ok((metadata, post, (parsing, rendering)))
}
fn cache(&self) -> Option<&Cache> {
self.cache.as_ref()
}
fn try_drop(&mut self) -> Result<(), eyre::Report> {
// write cache to file
let config = &self.config.cache;
if config.enable
&& config.persistence
&& let Some(cache) = self.cache()
{
let path = &config.file;
let serialized = bitcode::serialize(cache).context("failed to serialize cache")?;
let mut cache_file = std::fs::File::create(path)
.with_context(|| format!("failed to open cache at {}", path.display()))?;
let compression_level = config.compression_level;
if config.compress {
std::io::Write::write_all(
&mut zstd::stream::write::Encoder::new(cache_file, compression_level)?
.auto_finish(),
&serialized,
)
} else {
cache_file.write_all(&serialized)
}
.context("failed to write cache to file")?;
info!("wrote cache to {}", path.display());
}
Ok(())
}
}
impl<C> Drop for MarkdownPosts<C>
where
C: Deref<Target = Config>,
{
fn drop(&mut self) {
self.try_drop().unwrap()
}
}
impl<C> PostManager for MarkdownPosts<C>
where
C: Deref<Target = Config>,
{
async fn get_all_post_metadata(
&self,
filter: impl Fn(&PostMetadata) -> bool,
) -> Result<Vec<PostMetadata>, PostError> {
let mut posts = Vec::new();
let mut read_dir = fs::read_dir(&self.config.dirs.posts).await?;
while let Some(entry) = read_dir.next_entry().await? {
let path = entry.path();
let stat = fs::metadata(&path).await?;
if stat.is_file() && path.extension().is_some_and(|ext| ext == "md") {
let mtime = as_secs(&stat.modified()?);
// TODO. this?
let name = path
.clone()
.file_stem()
.unwrap()
.to_string_lossy()
.to_string();
if let Some(cache) = self.cache.as_ref()
&& let Some(hit) = cache.lookup_metadata(&name, mtime).await
&& filter(&hit)
{
posts.push(hit);
} else {
match self.parse_and_render(name, path).await {
Ok((metadata, ..)) => {
if filter(&metadata) {
posts.push(metadata);
}
}
Err(err) => match err {
PostError::IoError(ref io_err)
if matches!(io_err.kind(), io::ErrorKind::NotFound) =>
{
warn!("TOCTOU: {}", err)
}
_ => return Err(err),
},
}
}
}
}
Ok(posts)
}
async fn get_all_posts(
&self,
filter: impl Fn(&PostMetadata, &str) -> bool,
) -> Result<Vec<(PostMetadata, String, RenderStats)>, PostError> {
let mut posts = Vec::new();
let mut read_dir = fs::read_dir(&self.config.dirs.posts).await?;
while let Some(entry) = read_dir.next_entry().await? {
let path = entry.path();
let stat = fs::metadata(&path).await?;
if stat.is_file() && path.extension().is_some_and(|ext| ext == "md") {
let name = path
.clone()
.file_stem()
.unwrap()
.to_string_lossy()
.to_string();
let post = self.get_post(&name).await?;
if let ReturnedPost::Rendered(meta, content, stats) = post
&& filter(&meta, &content)
{
posts.push((meta, content, stats));
}
}
}
Ok(posts)
}
async fn get_post(&self, name: &str) -> Result<ReturnedPost, PostError> {
if self.config.markdown_access && name.ends_with(".md") {
let path = self.config.dirs.posts.join(name);
let mut file = match tokio::fs::OpenOptions::new().read(true).open(&path).await {
Ok(value) => value,
Err(err) => match err.kind() {
io::ErrorKind::NotFound => {
if let Some(cache) = self.cache.as_ref() {
cache.remove(name).await;
}
return Err(PostError::NotFound(name.to_string()));
}
_ => return Err(PostError::IoError(err)),
},
};
let mut buf = Vec::with_capacity(4096);
file.read_to_end(&mut buf).await?;
Ok(ReturnedPost::Raw(
buf,
HeaderValue::from_static("text/plain"),
))
} else {
let start = Instant::now();
let path = self.config.dirs.posts.join(name.to_owned() + ".md");
let stat = match tokio::fs::metadata(&path).await {
Ok(value) => value,
Err(err) => match err.kind() {
io::ErrorKind::NotFound => {
if let Some(cache) = self.cache.as_ref() {
cache.remove(name).await;
}
return Err(PostError::NotFound(name.to_string()));
}
_ => return Err(PostError::IoError(err)),
},
};
let mtime = as_secs(&stat.modified()?);
if let Some(cache) = self.cache.as_ref()
&& let Some(hit) = cache.lookup(name, mtime, &self.config.render).await
{
Ok(ReturnedPost::Rendered(
hit.metadata,
hit.rendered,
RenderStats::Cached(start.elapsed()),
))
} else {
let (metadata, rendered, stats) =
self.parse_and_render(name.to_string(), path).await?;
Ok(ReturnedPost::Rendered(
metadata,
rendered,
RenderStats::ParsedAndRendered(start.elapsed(), stats.0, stats.1),
))
}
}
}
async fn cleanup(&self) {
if let Some(cache) = self.cache.as_ref() {
cache
.cleanup(|name| {
std::fs::metadata(self.config.dirs.posts.join(name.to_owned() + ".md"))
.ok()
.and_then(|metadata| metadata.modified().ok())
.map(|mtime| as_secs(&mtime))
})
.await
}
}
}

262
src/post/mod.rs
View file

@ -1,54 +1,14 @@
pub mod cache;
pub mod markdown_posts;
use std::collections::BTreeSet;
use std::io;
use std::path::{Path, PathBuf};
use std::time::{Duration, Instant, SystemTime};
use std::time::Duration;
use axum::http::HeaderValue;
use chrono::{DateTime, Utc};
use fronma::parser::{parse, ParsedData};
use serde::{Deserialize, Serialize};
use tokio::fs;
use tokio::io::AsyncReadExt;
use tracing::warn;
use crate::config::RenderConfig;
use crate::markdown_render::render;
use crate::post::cache::Cache;
use crate::systemtime_as_secs::as_secs;
use crate::PostError;
#[derive(Deserialize)]
struct FrontMatter {
pub title: String,
pub description: String,
pub author: String,
pub icon: Option<String>,
pub created_at: Option<DateTime<Utc>>,
pub modified_at: Option<DateTime<Utc>>,
#[serde(default)]
pub tags: BTreeSet<String>,
}
impl FrontMatter {
pub fn into_full(
self,
name: String,
created: Option<SystemTime>,
modified: Option<SystemTime>,
) -> PostMetadata {
PostMetadata {
name,
title: self.title,
description: self.description,
author: self.author,
icon: self.icon,
created_at: self.created_at.or_else(|| created.map(|t| t.into())),
modified_at: self.modified_at.or_else(|| modified.map(|t| t.into())),
tags: self.tags.into_iter().collect(),
}
}
}
use crate::error::PostError;
pub use crate::post::markdown_posts::MarkdownPosts;
#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct PostMetadata {
@ -62,168 +22,40 @@ pub struct PostMetadata {
pub tags: Vec<String>,
}
#[allow(unused)]
pub enum RenderStats {
Cached(Duration),
// format: Total, Parsed in, Rendered in
ParsedAndRendered(Duration, Duration, Duration),
}
#[derive(Clone)]
pub struct PostManager {
dir: PathBuf,
cache: Option<Cache>,
config: RenderConfig,
#[allow(clippy::large_enum_variant)] // Raw will be returned very rarely
pub enum ReturnedPost {
Rendered(PostMetadata, String, RenderStats),
Raw(Vec<u8>, HeaderValue),
}
impl PostManager {
pub fn new(dir: PathBuf, config: RenderConfig) -> PostManager {
PostManager {
dir,
cache: None,
config,
}
}
pub fn new_with_cache(dir: PathBuf, config: RenderConfig, cache: Cache) -> PostManager {
PostManager {
dir,
cache: Some(cache),
config,
}
}
async fn parse_and_render(
&self,
name: String,
path: impl AsRef<Path>,
) -> Result<(PostMetadata, String, (Duration, Duration)), PostError> {
let parsing_start = Instant::now();
let mut file = match tokio::fs::OpenOptions::new().read(true).open(&path).await {
Ok(val) => val,
Err(err) => match err.kind() {
io::ErrorKind::NotFound => return Err(PostError::NotFound(name)),
_ => return Err(PostError::IoError(err)),
},
};
let stat = file.metadata().await?;
let modified = stat.modified()?;
let created = stat.created().ok();
let mut content = String::with_capacity(stat.len() as usize);
file.read_to_string(&mut content).await?;
let ParsedData { headers, body } = parse::<FrontMatter>(&content)?;
let metadata = headers.into_full(name.to_owned(), created, Some(modified));
let parsing = parsing_start.elapsed();
let before_render = Instant::now();
let post = render(body, &self.config);
let rendering = before_render.elapsed();
if let Some(cache) = self.cache.as_ref() {
cache
.insert(
name.to_string(),
metadata.clone(),
as_secs(&modified),
post.clone(),
&self.config,
)
.await
.unwrap_or_else(|err| warn!("failed to insert {:?} into cache", err.0))
};
Ok((metadata, post, (parsing, rendering)))
}
pub async fn get_all_post_metadata_filtered(
pub trait PostManager {
async fn get_all_post_metadata(
&self,
filter: impl Fn(&PostMetadata) -> bool,
) -> Result<Vec<PostMetadata>, PostError> {
let mut posts = Vec::new();
let mut read_dir = fs::read_dir(&self.dir).await?;
while let Some(entry) = read_dir.next_entry().await? {
let path = entry.path();
let stat = fs::metadata(&path).await?;
if stat.is_file() && path.extension().is_some_and(|ext| ext == "md") {
let mtime = as_secs(&stat.modified()?);
// TODO. this?
let name = path
.clone()
.file_stem()
.unwrap()
.to_string_lossy()
.to_string();
if let Some(cache) = self.cache.as_ref()
&& let Some(hit) = cache.lookup_metadata(&name, mtime).await
&& filter(&hit)
{
posts.push(hit);
} else {
match self.parse_and_render(name, path).await {
Ok((metadata, ..)) => {
if filter(&metadata) {
posts.push(metadata);
}
}
Err(err) => match err {
PostError::IoError(ref io_err)
if matches!(io_err.kind(), io::ErrorKind::NotFound) =>
{
warn!("TOCTOU: {}", err)
}
_ => return Err(err),
},
}
}
}
self.get_all_posts(|m, _| filter(m))
.await
.map(|vec| vec.into_iter().map(|(meta, ..)| meta).collect())
}
Ok(posts)
}
pub async fn get_all_posts_filtered(
async fn get_all_posts(
&self,
filter: impl Fn(&PostMetadata, &str) -> bool,
) -> Result<Vec<(PostMetadata, String, RenderStats)>, PostError> {
let mut posts = Vec::new();
) -> Result<Vec<(PostMetadata, String, RenderStats)>, PostError>;
let mut read_dir = fs::read_dir(&self.dir).await?;
while let Some(entry) = read_dir.next_entry().await? {
let path = entry.path();
let stat = fs::metadata(&path).await?;
if stat.is_file() && path.extension().is_some_and(|ext| ext == "md") {
let name = path
.clone()
.file_stem()
.unwrap()
.to_string_lossy()
.to_string();
let post = self.get_post(&name).await?;
if filter(&post.0, &post.1) {
posts.push(post);
}
}
}
Ok(posts)
}
pub async fn get_max_n_post_metadata_with_optional_tag_sorted(
async fn get_max_n_post_metadata_with_optional_tag_sorted(
&self,
n: Option<usize>,
tag: Option<&String>,
) -> Result<Vec<PostMetadata>, PostError> {
let mut posts = self
.get_all_post_metadata_filtered(|metadata| {
!tag.is_some_and(|tag| !metadata.tags.contains(tag))
})
.get_all_post_metadata(|metadata| !tag.is_some_and(|tag| !metadata.tags.contains(tag)))
.await?;
// we still want some semblance of order if created_at is None so sort by mtime as well
posts.sort_unstable_by_key(|metadata| metadata.modified_at.unwrap_or_default());
@ -236,59 +68,15 @@ impl PostManager {
Ok(posts)
}
pub async fn get_post(
&self,
name: &str,
) -> Result<(PostMetadata, String, RenderStats), PostError> {
let start = Instant::now();
let path = self.dir.join(name.to_owned() + ".md");
let stat = match tokio::fs::metadata(&path).await {
Ok(value) => value,
Err(err) => match err.kind() {
io::ErrorKind::NotFound => {
if let Some(cache) = self.cache.as_ref() {
cache.remove(name).await;
}
return Err(PostError::NotFound(name.to_string()));
}
_ => return Err(PostError::IoError(err)),
},
};
let mtime = as_secs(&stat.modified()?);
if let Some(cache) = self.cache.as_ref()
&& let Some(hit) = cache.lookup(name, mtime, &self.config).await
{
Ok((
hit.metadata,
hit.rendered,
RenderStats::Cached(start.elapsed()),
))
} else {
let (metadata, rendered, stats) = self.parse_and_render(name.to_string(), path).await?;
Ok((
metadata,
rendered,
RenderStats::ParsedAndRendered(start.elapsed(), stats.0, stats.1),
))
#[allow(unused)]
async fn get_post_metadata(&self, name: &str) -> Result<PostMetadata, PostError> {
match self.get_post(name).await? {
ReturnedPost::Rendered(metadata, ..) => Ok(metadata),
ReturnedPost::Raw(..) => Err(PostError::NotFound(name.to_string())),
}
}
pub fn cache(&self) -> Option<&Cache> {
self.cache.as_ref()
}
async fn get_post(&self, name: &str) -> Result<ReturnedPost, PostError>;
pub async fn cleanup(&self) {
if let Some(cache) = self.cache.as_ref() {
cache
.cleanup(|name| {
std::fs::metadata(self.dir.join(name.to_owned() + ".md"))
.ok()
.and_then(|metadata| metadata.modified().ok())
.map(|mtime| as_secs(&mtime))
})
.await
}
}
async fn cleanup(&self);
}

4
static/main.js Normal file
View file

@ -0,0 +1,4 @@
for (let el of document.querySelectorAll(".date-rfc3339")) {
let date = new Date(Date.parse(el.textContent));
el.textContent = date.toLocaleString();
}

29
static/style.css
View file

@ -84,6 +84,35 @@ div.post {
margin-bottom: 1em;
}
.table {
display: grid;
/*grid-template-columns: auto auto auto;
grid-template-rows: auto auto;*/
width: max-content;
}
.table > :not(.value)::after {
content: ":";
}
.table > .value {
margin-left: 1em;
text-align: end;
grid-column: 2;
}
.table > .created {
grid-row: 1;
}
.table > .modified {
grid-row: 2;
}
.table > .tags {
grid-row: 3;
}
/* BEGIN cool effect everyone liked */
body {

2
templates/index.html
View file

@ -11,6 +11,8 @@
<link rel="stylesheet" href="/static/style.css" />
{% if rss %}
<link rel="alternate" type="application/rss+xml" title="{{ title }}" href="/feed.xml" />
{% endif %} {% if js %}
<script src="/static/main.js" defer></script>
{% endif %}
</head>
<body>

22
templates/macros.askama
View file

@ -1,19 +1,31 @@
{% macro span_date(value) %}
<span class="{%- match df -%}
{% when DateFormat::RFC3339 %}
date-rfc3339
{% when DateFormat::Strftime(_) %}
{%- endmatch -%}">{{ value|date(df) }}</span>
{% endmacro %}
{% macro table(post) %}
<div class="table">
{% match post.created_at %}
{% when Some(created_at) %}
written:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {{ created_at|date }}<br />
<div class="created">written</div>
<div class="created value">{% call span_date(created_at) %}</div>
{% when None %}
{% endmatch %}
{% match post.modified_at %}
{% when Some(modified_at) %}
last modified: {{ modified_at|date }}<br />
<div class="modified">last modified</div>
<div class="modified value">{% call span_date(modified_at) %}</div>
{% when None %}
{% endmatch %}
{% if !post.tags.is_empty() %}
tags:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<div class="tags">tags</div>
<div class="tags value">
{% for tag in post.tags %}
<a href="/?tag={{ tag }}" title="view all posts with this tag">{{ tag }}</a>
{% endfor %}<br />
{% endfor %}
</div>
{% endif %}
</div>
{% endmacro %}

9
templates/post.html
View file

@ -1,7 +1,6 @@
{%- import "macros.askama" as macros -%}
<!DOCTYPE html>
<html lang="en">
<head>
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
@ -15,7 +14,9 @@
<title>{{ meta.title }}</title>
<link rel="stylesheet" href="/static/style.css" />
<link rel="stylesheet" href="/static/post.css" />
</head>
{% if js %}
<script src="/static/main.js" defer></script>
{% endif %}
</head>
<body>
<main>
@ -24,11 +25,9 @@
<span class="post-author">- by {{ meta.author }}</span>
</h1>
<p class="post-desc">{{ meta.description }}</p>
<div class="" post>
<div class="post">
<!-- prettier-ignore -->
<div>
{% call macros::table(meta) %}
</div>
<a href="/posts/{{ meta.name }}">link</a><br />
<a href="/">back to home</a>
</div>