move the rest of markdown-related stuff into it's own file

README.md

@@ -38,7 +38,8 @@ 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
+markdown_access = true # allow users to see the raw markdown of a post
+                       # endpoint: /posts/<name>.md
 
 [rss]
 enable = false         # serve an rss field under /feed.xml

src/app.rs

@@ -3,13 +3,13 @@ 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 tokio::io::AsyncReadExt;
 use tower_http::services::ServeDir;
 use tower_http::trace::TraceLayer;
 use tracing::{info, info_span, Span};
@@ -17,7 +17,7 @@ use tracing::{info, info_span, Span};
 use crate::config::Config;
 use crate::error::{AppError, AppResult};
 use crate::filters;
-use crate::post::{MarkdownPosts, PostManager, PostMetadata, RenderStats};
+use crate::post::{MarkdownPosts, PostManager, PostMetadata, RenderStats, ReturnedPost};
 
 #[derive(Clone)]
 pub struct AppState {
@@ -138,27 +138,21 @@ async fn post(
     State(AppState { config, posts }): State<AppState>,
     Path(name): Path<String>,
 ) -> AppResult<Response> {
-    if name.ends_with(".md") && config.raw_access {
-        let mut file = tokio::fs::OpenOptions::new()
-            .read(true)
-            .open(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 = posts.get_post(&name).await?;
+    match posts.get_post(&name).await? {
+        ReturnedPost::Rendered(meta, rendered, rendered_in) => {
             let page = PostTemplate {
-            meta: post.0,
-            rendered: post.1,
-            rendered_in: post.2,
-            markdown_access: config.raw_access,
+                meta,
+                rendered,
+                rendered_in,
+                markdown_access: config.markdown_access,
             };
 
             Ok(page.into_response())
         }
+        ReturnedPost::Raw(body, content_type) => {
+            Ok(([(CONTENT_TYPE, content_type)], body).into_response())
+        }
+    }
 }
 
 pub fn new(config: &Config) -> Router<AppState> {

src/config.rs

@@ -64,7 +64,7 @@ pub struct RssConfig {
 pub struct Config {
     pub title: String,
     pub description: String,
-    pub raw_access: bool,
+    pub markdown_access: bool,
     pub num_posts: usize,
     pub rss: RssConfig,
     pub dirs: DirsConfig,
@@ -78,7 +78,7 @@ impl Default for Config {
         Self {
             title: "bingus-blog".into(),
             description: "blazingly fast markdown blog software written in rust memory safe".into(),
-            raw_access: true,
+            markdown_access: true,
             num_posts: 5,
             // i have a love-hate relationship with serde
             // it was engimatic at first, but then i started actually using it

src/post/markdown_posts.rs

@@ -1,11 +1,16 @@
+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};
@@ -13,9 +18,40 @@ 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::{FrontMatter, PostError, PostManager, PostMetadata, RenderStats};
+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>,
@@ -219,8 +255,10 @@ where
                     .to_string();
 
                 let post = self.get_post(&name).await?;
-                if filter(&post.0, &post.1) {
-                    posts.push(post);
+                if let ReturnedPost::Rendered(meta, content, stats) = post
+                    && filter(&meta, &content)
+                {
+                    posts.push((meta, content, stats));
                 }
             }
         }
@@ -228,7 +266,32 @@ where
         Ok(posts)
     }
 
-    async fn get_post(&self, name: &str) -> Result<(PostMetadata, String, RenderStats), PostError> {
+    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");
 
@@ -249,20 +312,22 @@ where
             if let Some(cache) = self.cache.as_ref()
                 && let Some(hit) = cache.lookup(name, mtime, &self.config.render).await
             {
-            Ok((
+                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((
+                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() {

src/post/mod.rs

@@ -1,47 +1,15 @@
 pub mod cache;
 pub mod markdown_posts;
 
-use std::collections::BTreeSet;
-use std::time::{Duration, SystemTime};
+use std::time::Duration;
 
+use axum::http::HeaderValue;
 use chrono::{DateTime, Utc};
 use serde::{Deserialize, Serialize};
 
 use crate::error::PostError;
 pub use crate::post::markdown_posts::MarkdownPosts;
 
-#[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(),
-        }
-    }
-}
-
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct PostMetadata {
     pub name: String,
@@ -54,13 +22,18 @@ pub struct PostMetadata {
     pub tags: Vec<String>,
 }
 
-#[allow(unused)]
 pub enum RenderStats {
     Cached(Duration),
     // format: Total, Parsed in, Rendered in
     ParsedAndRendered(Duration, Duration, Duration),
 }
 
+#[allow(clippy::large_enum_variant)] // Raw will be returned very rarely
+pub enum ReturnedPost {
+    Rendered(PostMetadata, String, RenderStats),
+    Raw(Vec<u8>, HeaderValue),
+}
+
 pub trait PostManager {
     async fn get_all_post_metadata(
         &self,
@@ -97,10 +70,13 @@ pub trait PostManager {
 
     #[allow(unused)]
     async fn get_post_metadata(&self, name: &str) -> Result<PostMetadata, PostError> {
-        self.get_post(name).await.map(|(meta, ..)| meta)
+        match self.get_post(name).await? {
+            ReturnedPost::Rendered(metadata, ..) => Ok(metadata),
+            ReturnedPost::Raw(..) => Err(PostError::NotFound(name.to_string())),
+        }
     }
 
-    async fn get_post(&self, name: &str) -> Result<(PostMetadata, String, RenderStats), PostError>;
+    async fn get_post(&self, name: &str) -> Result<ReturnedPost, PostError>;
 
     async fn cleanup(&self);
 }