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Cache better (#296) 

* Many improvements around bandwidth use

- Use ETags for RSS/Atom feeds
- Use cache-control headers
- Update to rust nightly (for rust-analyzer and faster builds)
- Limit feeds to the last 20 posts:
  https://twitter.com/theprincessxena/status/1349891678857998339
- Use if-none-match to limit bandwidth further

Also does this:

- bump go_vanity to 0.3.0 and lets users customize the branch name
- fix formatting on jsonfeed
- remove last vestige of kubernetes/docker support

Signed-off-by: Christine Dodrill <me@christine.website>

* expire cache quicker for dynamic pages

Signed-off-by: Christine Dodrill <me@christine.website>

* add rss ttl

Signed-off-by: Christine Dodrill <me@christine.website>

* add blogpost

Signed-off-by: Christine Dodrill <me@christine.website>
This commit is contained in:
Cadey Ratio 2021-01-14 22:36:34 -05:00 committed by GitHub
parent a359f54a91
commit d2455aa1c1
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GPG Key ID: 4AEE18F83AFDEB23
23 changed files with 308 additions and 176 deletions
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13
Cargo.lock generated
View File

@ -644,7 +644,7 @@ checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
[[package]]
name = "go_vanity"
version = "0.1.0"
version = "0.2.0"
dependencies = [
"mime",
"ructe",
@ -2364,6 +2364,16 @@ version = "0.7.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "05e42f7c18b8f902290b009cde6d651262f956c98bc51bca4cd1d511c9cd85c7"
[[package]]
name = "uuid"
version = "0.8.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
dependencies = [
"getrandom 0.2.1",
"serde",
]
[[package]]
name = "vcpkg"
version = "0.2.11"
@ -2626,6 +2636,7 @@ dependencies = [
"tracing-futures",
"tracing-subscriber",
"url",
"uuid",
"warp",
"xml-rs",
]

3
Cargo.toml
View File

@ -1,6 +1,6 @@
[package]
name = "xesite"
version = "2.1.0"
version = "2.2.0"
authors = ["Christine Dodrill <me@christine.website>"]
edition = "2018"
build = "src/build.rs"
@ -34,6 +34,7 @@ tracing-subscriber = { version = "0.2", features = ["fmt"] }
warp = "0.2"
xml-rs = "0.8"
url = "2"
uuid = { version = "0.8", features = ["serde", "v4"] }
# workspace dependencies
go_vanity = { path = "./lib/go_vanity" }

69
blog/site-update-rss-bandwidth-2021-01-14.markdown Normal file
View File

@ -0,0 +1,69 @@
---
title: "Site Update: RSS Bandwidth Fixes"
date: 2021-01-14
tags:
- devops
- optimization
---
# Site Update: RSS Bandwidth Fixes
Well, so I think I found out where my Kubernetes cluster cost came from. For
context, this blog gets a lot of traffic. Since the last deploy, my blog has
served its RSS feed over 19,000 times. I have some pretty naiive code powering
the RSS feed. It basically looked something like this:
- Write RSS feed content-type and beginning of feed
- For every post I have ever made, include its metadata and content
- Write end of RSS feed
This code was _fantastically simple_ to develop, however it was very expensive
in terms of bandwidth. When you add all this up, my RSS feed used to be more
than a _one megabyte_ response. It was also only getting larger as I posted more
content.
This is unsustainable, so I have taken multiple actions to try and fix this from
several angles.
<blockquote class="twitter-tweet"><p lang="en" dir="ltr">Rationale: this is my
most commonly hit and largest endpoint. I want to try and cut down its size.
<br><br>current feed (everything): 1356706 bytes<br>20 posts: 177931 bytes<br>10
posts: 53004 bytes<br>5 posts: 29318 bytes <a
href="https://t.co/snjnn8RFh8">pic.twitter.com/snjnn8RFh8</a></p>&mdash; Cadey
A. Ratio (@theprincessxena) <a
href="https://twitter.com/theprincessxena/status/1349892662871150594?ref_src=twsrc%5Etfw">January
15, 2021</a></blockquote> <script async
src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
[Yes, that graph is showing in _gigabytes_. We're so lucky that bandwidth is
free on Hetzner.](conversation://Mara/hacker)
First I finally set up the site to run behind Cloudflare. The Cloudflare
settings are set very permissively, so your RSS feed reading bots or whatever
should NOT be affected by this change. If you run into any side effects as a
result of this change, [contact me](/contact) and I can fix it.
Second, I also now set cache control headers on every response. By default the
"static" pages are cached for a day and the "dynamic" pages are cached for 5
minutes. This should allow new posts to show up quickly as they have previously.
Thirdly, I set up
[ETags](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/ETag) for the
feeds. Each of my feeds will send an ETag in a response header. Please use this
tag in future requests to ensure that you don't ask for content you already
have. From what I recall most RSS readers should already support this, however
I'll monitor the situation as reality demands.
Lastly, I adjusted the
[ttl](https://cyber.harvard.edu/rss/rss.html#ltttlgtSubelementOfLtchannelgt) of
the RSS feed so that compliant feed readers should only check once per day. I've
seen some feed readers request the feed up to every 5 minutes, which is very
excessive. Hopefully this setting will gently nudge them into behaving.
As a nice side effect I should have slightly lower ram usage on the blog server
too! Right now it's sitting at about 58 and a half MB of ram, however with fewer
copies of my posts sitting in memory this should fall by a significant amount.
If you have any feedback about this, please [contact me](/contact) or mention me
on Twitter. I read my email frequently and am notified about Twitter mentions
very quickly.

7
default.nix
View File

@ -2,12 +2,17 @@
with pkgs;
let
rust = pkgs.callPackage ./nix/rust.nix { };
srcNoTarget = dir:
builtins.filterSource
(path: type: type != "directory" || builtins.baseNameOf path != "target")
dir;
naersk = pkgs.callPackage sources.naersk { };
naersk = pkgs.callPackage sources.naersk {
rustc = rust;
cargo = rust;
};
dhallpkgs = import sources.easy-dhall-nix { inherit pkgs; };
src = srcNoTarget ./.;

23
docker.nix
View File

@ -1,23 +0,0 @@
{ system ? builtins.currentSystem }:
let
sources = import ./nix/sources.nix;
pkgs = import sources.nixpkgs { inherit system; };
callPackage = pkgs.lib.callPackageWith pkgs;
site = callPackage ./default.nix { };
dockerImage = pkg:
pkgs.dockerTools.buildLayeredImage {
name = "xena/christinewebsite";
tag = "latest";
contents = [ pkgs.cacert pkg ];
config = {
Cmd = [ "${pkg}/bin/xesite" ];
Env = [ "CONFIG_FNAME=${pkg}/config.dhall" "RUST_LOG=info" ];
WorkingDir = "/";
};
};
in dockerImage site

2
lib/go_vanity/Cargo.toml
View File

@ -1,6 +1,6 @@
[package]
name = "go_vanity"
version = "0.1.0"
version = "0.2.0"
authors = ["Christine Dodrill <me@christine.website>"]
edition = "2018"
build = "src/build.rs"

10
lib/go_vanity/src/lib.rs
View File

@ -1,12 +1,12 @@
use crate::templates::RenderRucte;
use warp::{http::Response, Rejection, Reply};
use crate::templates::{RenderRucte};
include!(concat!(env!("OUT_DIR"), "/templates.rs"));
pub async fn gitea(pkg_name: &str, git_repo: &str) -> Result<impl Reply, Rejection> {
Response::builder().html(|o| templates::gitea_html(o, pkg_name, git_repo))
pub async fn gitea(pkg_name: &str, git_repo: &str, branch: &str) -> Result<impl Reply, Rejection> {
Response::builder().html(|o| templates::gitea_html(o, pkg_name, git_repo, branch))
}
pub async fn github(pkg_name: &str, git_repo: &str) -> Result<impl Reply, Rejection> {
Response::builder().html(|o| templates::github_html(o, pkg_name, git_repo))
pub async fn github(pkg_name: &str, git_repo: &str, branch: &str) -> Result<impl Reply, Rejection> {
Response::builder().html(|o| templates::github_html(o, pkg_name, git_repo, branch))
}

4
lib/go_vanity/templates/gitea.rs.html
View File

@ -1,11 +1,11 @@
@(pkg_name: &str, git_repo: &str)
@(pkg_name: &str, git_repo: &str, branch: &str)
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta name="go-import" content="@pkg_name git @git_repo">
<meta name="go-source" content="@pkg_name @git_repo @git_repo/src/master@{/dir@} @git_repo/src/master@{/dir@}/@{file@}#L@{line@}">
<meta name="go-source" content="@pkg_name @git_repo @git_repo/src/@branch@{/dir@} @git_repo/src/@branch@{/dir@}/@{file@}#L@{line@}">
<meta http-equiv="refresh" content="0; url=https://godoc.org/@pkg_name">
</head>
<body>

4
lib/go_vanity/templates/github.rs.html
View File

@ -1,11 +1,11 @@
@(pkg_name: &str, git_repo: &str)
@(pkg_name: &str, git_repo: &str, branch: &str)
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta name="go-import" content="@pkg_name git @git_repo">
<meta name="go-source" content="@pkg_name @git_repo @git_repo/tree/master@{/dir@} @git_repo/blob/master@{/dir@}/@{file@}#L@{line@}">
<meta name="go-source" content="@pkg_name @git_repo @git_repo/tree/@branch@{/dir@} @git_repo/blob/@branch@{/dir@}/@{file@}#L@{line@}">
<meta http-equiv="refresh" content="0; url=https://godoc.org/@pkg_name">
</head>
<body>

11
lib/jsonfeed/src/builder.rs
View File

@ -1,7 +1,7 @@
use std::default::Default;
use errors::*;
use feed::{Feed, Author, Attachment};
use feed::{Attachment, Author, Feed};
use item::{Content, Item};
/// Feed Builder
@ -160,7 +160,7 @@ impl ItemBuilder {
match self.content {
Some(Content::Text(t)) => {
self.content = Some(Content::Both(i.into(), t));
},
}
_ => {
self.content = Some(Content::Html(i.into()));
}
@ -172,10 +172,10 @@ impl ItemBuilder {
match self.content {
Some(Content::Html(s)) => {
self.content = Some(Content::Both(s, i.into()));
},
}
_ => {
self.content = Some(Content::Text(i.into()));
},
}
}
self
}
@ -197,8 +197,7 @@ impl ItemBuilder {
date_modified: self.date_modified,
author: self.author,
tags: self.tags,
attachments: self.attachments
attachments: self.attachments,
})
}
}

3
lib/jsonfeed/src/errors.rs
View File

@ -1,7 +1,6 @@
use serde_json;
error_chain!{
error_chain! {
foreign_links {
Serde(serde_json::Error);
}
}

36
lib/jsonfeed/src/feed.rs
View File

@ -1,7 +1,7 @@
use std::default::Default;
use item::Item;
use builder::Builder;
use item::Item;
const VERSION_1: &'static str = "https://jsonfeed.org/version/1";
@ -145,9 +145,9 @@ pub struct Hub {
#[cfg(test)]
mod tests {
use super::*;
use serde_json;
use std::default::Default;
use super::*;
#[test]
fn serialize_feed() {
@ -168,18 +168,16 @@ mod tests {
#[test]
fn deserialize_feed() {
let json = r#"{"version":"https://jsonfeed.org/version/1","title":"some title","items":[]}"#;
let json =
r#"{"version":"https://jsonfeed.org/version/1","title":"some title","items":[]}"#;
let feed: Feed = serde_json::from_str(&json).unwrap();
let expected = Feed {
version: "https://jsonfeed.org/version/1".to_string(),
title: "some title".to_string(),
items: vec![],
..Default::default()
title: "some title".to_string(),
items: vec![],
..Default::default()
};
assert_eq!(
feed,
expected
);
assert_eq!(feed, expected);
}
#[test]
@ -208,10 +206,7 @@ mod tests {
size_in_bytes: Some(1),
duration_in_seconds: Some(1),
};
assert_eq!(
attachment,
expected
);
assert_eq!(attachment, expected);
}
#[test]
@ -229,17 +224,15 @@ mod tests {
#[test]
fn deserialize_author() {
let json = r#"{"name":"bob jones","url":"http://example.com","avatar":"http://img.com/blah"}"#;
let json =
r#"{"name":"bob jones","url":"http://example.com","avatar":"http://img.com/blah"}"#;
let author: Author = serde_json::from_str(&json).unwrap();
let expected = Author {
name: Some("bob jones".to_string()),
url: Some("http://example.com".to_string()),
avatar: Some("http://img.com/blah".to_string()),
};
assert_eq!(
author,
expected
);
assert_eq!(author, expected);
}
#[test]
@ -262,10 +255,7 @@ mod tests {
type_: "some-type".to_string(),
url: "http://example.com".to_string(),
};
assert_eq!(
hub,
expected
);
assert_eq!(hub, expected);
}
#[test]

116
lib/jsonfeed/src/item.rs
View File

@ -1,11 +1,11 @@
use std::fmt;
use std::default::Default;
use std::fmt;
use feed::{Author, Attachment};
use builder::ItemBuilder;
use feed::{Attachment, Author};
use serde::ser::{Serialize, Serializer, SerializeStruct};
use serde::de::{self, Deserialize, Deserializer, Visitor, MapAccess};
use serde::de::{self, Deserialize, Deserializer, MapAccess, Visitor};
use serde::ser::{Serialize, SerializeStruct, Serializer};
/// Represents the `content_html` and `content_text` attributes of an item
#[derive(Debug, Clone, PartialEq, Deserialize, Serialize)]
@ -61,7 +61,8 @@ impl Default for Item {
impl Serialize for Item {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer
where
S: Serializer,
{
let mut state = serializer.serialize_struct("Item", 14)?;
state.serialize_field("id", &self.id)?;
@ -78,15 +79,15 @@ impl Serialize for Item {
Content::Html(ref s) => {
state.serialize_field("content_html", s)?;
state.serialize_field("content_text", &None::<Option<&str>>)?;
},
}
Content::Text(ref s) => {
state.serialize_field("content_html", &None::<Option<&str>>)?;
state.serialize_field("content_text", s)?;
},
}
Content::Both(ref s, ref t) => {
state.serialize_field("content_html", s)?;
state.serialize_field("content_text", t)?;
},
}
};
if self.summary.is_some() {
state.serialize_field("summary", &self.summary)?;
@ -117,8 +118,9 @@ impl Serialize for Item {
}
impl<'de> Deserialize<'de> for Item {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where D: Deserializer<'de>
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
enum Field {
Id,
@ -135,11 +137,12 @@ impl<'de> Deserialize<'de> for Item {
Author,
Tags,
Attachments,
};
}
impl<'de> Deserialize<'de> for Field {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where D: Deserializer<'de>
where
D: Deserializer<'de>,
{
struct FieldVisitor;
@ -151,7 +154,8 @@ impl<'de> Deserialize<'de> for Item {
}
fn visit_str<E>(self, value: &str) -> Result<Field, E>
where E: de::Error
where
E: de::Error,
{
match value {
"id" => Ok(Field::Id),
@ -186,7 +190,8 @@ impl<'de> Deserialize<'de> for Item {
}
fn visit_map<V>(self, mut map: V) -> Result<Item, V::Error>
where V: MapAccess<'de>
where
V: MapAccess<'de>,
{
let mut id = None;
let mut url = None;
@ -210,99 +215,93 @@ impl<'de> Deserialize<'de> for Item {
return Err(de::Error::duplicate_field("id"));
}
id = Some(map.next_value()?);
},
}
Field::Url => {
if url.is_some() {
return Err(de::Error::duplicate_field("url"));
}
url = map.next_value()?;
},
}
Field::ExternalUrl => {
if external_url.is_some() {
return Err(de::Error::duplicate_field("external_url"));
}
external_url = map.next_value()?;
},
}
Field::Title => {
if title.is_some() {
return Err(de::Error::duplicate_field("title"));
}
title = map.next_value()?;
},
}
Field::ContentHtml => {
if content_html.is_some() {
return Err(de::Error::duplicate_field("content_html"));
}
content_html = map.next_value()?;
},
}
Field::ContentText => {
if content_text.is_some() {
return Err(de::Error::duplicate_field("content_text"));
}
content_text = map.next_value()?;
},
}
Field::Summary => {
if summary.is_some() {
return Err(de::Error::duplicate_field("summary"));
}
summary = map.next_value()?;
},
}
Field::Image => {
if image.is_some() {
return Err(de::Error::duplicate_field("image"));
}
image = map.next_value()?;
},
}
Field::BannerImage => {
if banner_image.is_some() {
return Err(de::Error::duplicate_field("banner_image"));
}
banner_image = map.next_value()?;
},
}
Field::DatePublished => {
if date_published.is_some() {
return Err(de::Error::duplicate_field("date_published"));
}
date_published = map.next_value()?;
},
}
Field::DateModified => {
if date_modified.is_some() {
return Err(de::Error::duplicate_field("date_modified"));
}
date_modified = map.next_value()?;
},
}
Field::Author => {
if author.is_some() {
return Err(de::Error::duplicate_field("author"));
}
author = map.next_value()?;
},
}
Field::Tags => {
if tags.is_some() {
return Err(de::Error::duplicate_field("tags"));
}
tags = map.next_value()?;
},
}
Field::Attachments => {
if attachments.is_some() {
return Err(de::Error::duplicate_field("attachments"));
}
attachments = map.next_value()?;
},
}
}
}
let id = id.ok_or_else(|| de::Error::missing_field("id"))?;
let content = match (content_html, content_text) {
(Some(s), Some(t)) => {
Content::Both(s.to_string(), t.to_string())
},
(Some(s), _) => {
Content::Html(s.to_string())
},
(_, Some(t)) => {
Content::Text(t.to_string())
},
(Some(s), Some(t)) => Content::Both(s.to_string(), t.to_string()),
(Some(s), _) => Content::Html(s.to_string()),
(_, Some(t)) => Content::Text(t.to_string()),
_ => return Err(de::Error::missing_field("content_html or content_text")),
};
@ -363,7 +362,12 @@ mod tests {
banner_image: Some("http://img.com/blah".into()),
date_published: Some("2017-01-01 10:00:00".into()),
date_modified: Some("2017-01-01 10:00:00".into()),
author: Some(Author::new().name("bob jones").url("http://example.com").avatar("http://img.com/blah")),
author: Some(
Author::new()
.name("bob jones")
.url("http://example.com")
.avatar("http://img.com/blah"),
),
tags: Some(vec!["json".into(), "feed".into()]),
attachments: Some(vec![]),
};
@ -387,7 +391,12 @@ mod tests {
banner_image: Some("http://img.com/blah".into()),
date_published: Some("2017-01-01 10:00:00".into()),
date_modified: Some("2017-01-01 10:00:00".into()),
author: Some(Author::new().name("bob jones").url("http://example.com").avatar("http://img.com/blah")),
author: Some(
Author::new()
.name("bob jones")
.url("http://example.com")
.avatar("http://img.com/blah"),
),
tags: Some(vec!["json".into(), "feed".into()]),
attachments: Some(vec![]),
};
@ -411,7 +420,12 @@ mod tests {
banner_image: Some("http://img.com/blah".into()),
date_published: Some("2017-01-01 10:00:00".into()),
date_modified: Some("2017-01-01 10:00:00".into()),
author: Some(Author::new().name("bob jones").url("http://example.com").avatar("http://img.com/blah")),
author: Some(
Author::new()
.name("bob jones")
.url("http://example.com")
.avatar("http://img.com/blah"),
),
tags: Some(vec!["json".into(), "feed".into()]),
attachments: Some(vec![]),
};
@ -437,7 +451,12 @@ mod tests {
banner_image: Some("http://img.com/blah".into()),
date_published: Some("2017-01-01 10:00:00".into()),
date_modified: Some("2017-01-01 10:00:00".into()),
author: Some(Author::new().name("bob jones").url("http://example.com").avatar("http://img.com/blah")),
author: Some(
Author::new()
.name("bob jones")
.url("http://example.com")
.avatar("http://img.com/blah"),
),
tags: Some(vec!["json".into(), "feed".into()]),
attachments: Some(vec![]),
};
@ -460,7 +479,12 @@ mod tests {
banner_image: Some("http://img.com/blah".into()),
date_published: Some("2017-01-01 10:00:00".into()),
date_modified: Some("2017-01-01 10:00:00".into()),
author: Some(Author::new().name("bob jones").url("http://example.com").avatar("http://img.com/blah")),
author: Some(
Author::new()
.name("bob jones")
.url("http://example.com")
.avatar("http://img.com/blah"),
),
tags: Some(vec!["json".into(), "feed".into()]),
attachments: Some(vec![]),
};
@ -483,11 +507,15 @@ mod tests {
banner_image: Some("http://img.com/blah".into()),
date_published: Some("2017-01-01 10:00:00".into()),
date_modified: Some("2017-01-01 10:00:00".into()),
author: Some(Author::new().name("bob jones").url("http://example.com").avatar("http://img.com/blah")),
author: Some(
Author::new()
.name("bob jones")
.url("http://example.com")
.avatar("http://img.com/blah"),
),
tags: Some(vec!["json".into(), "feed".into()]),
attachments: Some(vec![]),
};
assert_eq!(item, expected);
}
}

68
lib/jsonfeed/src/lib.rs
View File

@ -2,7 +2,7 @@
//! instead of XML
//!
//! This crate can serialize and deserialize between JSON Feed strings
//! and Rust data structures. It also allows for programmatically building
//! and Rust data structures. It also allows for programmatically building
//! a JSON Feed
//!
//! Example:
@ -40,18 +40,20 @@
//! ```
extern crate serde;
#[macro_use] extern crate error_chain;
#[macro_use] extern crate serde_derive;
#[macro_use]
extern crate error_chain;
#[macro_use]
extern crate serde_derive;
extern crate serde_json;
mod errors;
mod item;
mod feed;
mod builder;
mod errors;
mod feed;
mod item;
pub use errors::*;
pub use feed::{Attachment, Author, Feed};
pub use item::*;
pub use feed::{Feed, Author, Attachment};
use std::io::Write;
@ -116,14 +118,16 @@ pub fn to_vec_pretty(value: &Feed) -> Result<Vec<u8>> {
/// Serialize a Feed to JSON and output to an IO stream
pub fn to_writer<W>(writer: W, value: &Feed) -> Result<()>
where W: Write
where
W: Write,
{
Ok(serde_json::to_writer(writer, value)?)
}
/// Serialize a Feed to pretty-printed JSON and output to an IO stream
pub fn to_writer_pretty<W>(writer: W, value: &Feed) -> Result<()>
where W: Write
where
W: Write,
{
Ok(serde_json::to_writer_pretty(writer, value)?)
}
@ -137,10 +141,7 @@ mod tests {
fn from_str() {
let feed = r#"{"version": "https://jsonfeed.org/version/1","title":"","items":[]}"#;
let expected = Feed::default();
assert_eq!(
super::from_str(&feed).unwrap(),
expected
);
assert_eq!(super::from_str(&feed).unwrap(), expected);
}
#[test]
fn from_reader() {
@ -148,39 +149,27 @@ mod tests {
let feed = feed.as_bytes();
let feed = Cursor::new(feed);
let expected = Feed::default();
assert_eq!(
super::from_reader(feed).unwrap(),
expected
);
assert_eq!(super::from_reader(feed).unwrap(), expected);
}
#[test]
fn from_slice() {
let feed = r#"{"version": "https://jsonfeed.org/version/1","title":"","items":[]}"#;
let feed = feed.as_bytes();
let expected = Feed::default();
assert_eq!(
super::from_slice(&feed).unwrap(),
expected
);
assert_eq!(super::from_slice(&feed).unwrap(), expected);
}
#[test]
fn from_value() {
let feed = r#"{"version": "https://jsonfeed.org/version/1","title":"","items":[]}"#;
let feed: serde_json::Value = serde_json::from_str(&feed).unwrap();
let expected = Feed::default();
assert_eq!(
super::from_value(feed).unwrap(),
expected
);
assert_eq!(super::from_value(feed).unwrap(), expected);
}
#[test]
fn to_string() {
let feed = Feed::default();
let expected = r#"{"version":"https://jsonfeed.org/version/1","title":"","items":[]}"#;
assert_eq!(
super::to_string(&feed).unwrap(),
expected
);
assert_eq!(super::to_string(&feed).unwrap(), expected);
}
#[test]
fn to_string_pretty() {
@ -190,28 +179,19 @@ mod tests {
"title": "",
"items": []
}"#;
assert_eq!(
super::to_string_pretty(&feed).unwrap(),
expected
);
assert_eq!(super::to_string_pretty(&feed).unwrap(), expected);
}
#[test]
fn to_value() {
let feed = r#"{"version":"https://jsonfeed.org/version/1","title":"","items":[]}"#;
let expected: serde_json::Value = serde_json::from_str(&feed).unwrap();
assert_eq!(
super::to_value(Feed::default()).unwrap(),
expected
);
assert_eq!(super::to_value(Feed::default()).unwrap(), expected);
}
#[test]
fn to_vec() {
let feed = r#"{"version":"https://jsonfeed.org/version/1","title":"","items":[]}"#;
let expected = feed.as_bytes();
assert_eq!(
super::to_vec(&Feed::default()).unwrap(),
expected
);
assert_eq!(super::to_vec(&Feed::default()).unwrap(), expected);
}
#[test]
fn to_vec_pretty() {
@ -221,10 +201,7 @@ mod tests {
"items": []
}"#;
let expected = feed.as_bytes();
assert_eq!(
super::to_vec_pretty(&Feed::default()).unwrap(),
expected
);
assert_eq!(super::to_vec_pretty(&Feed::default()).unwrap(), expected);
}
#[test]
fn to_writer() {
@ -249,4 +226,3 @@ mod tests {
assert_eq!(result, feed);
}
}

4
nix/rust.nix
View File

@ -4,7 +4,7 @@ let
pkgs =
import sources.nixpkgs { overlays = [ (import sources.nixpkgs-mozilla) ]; };
channel = "nightly";
date = "2020-11-25";
date = "2021-01-14";
targets = [ ];
chan = pkgs.latest.rustChannels.stable.rust;
chan = pkgs.rustChannelOfTargets channel date targets;
in chan

2
shell.nix
View File

@ -5,7 +5,7 @@ let
dhall-yaml = dhallpkgs.dhall-yaml-simple;
dhall = dhallpkgs.dhall-simple;
xepkgs = import sources.xepkgs { inherit pkgs; };
rust = import ./nix/rust.nix { };
rust = pkgs.callPackage ./nix/rust.nix { };
in with pkgs;
with xepkgs;
mkShell {

2
src/app/mod.rs
View File

@ -86,6 +86,8 @@ pub async fn init(cfg: PathBuf) -> Result<State> {
everything.sort();
everything.reverse();
let everything: Vec<Post> = everything.into_iter().take(20).collect();
let mut jfb = jsonfeed::Feed::builder()
.title("Christine Dodrill's Blog")
.description("My blog posts and rants about various technology things.")

39
src/handlers/feeds.rs
View File

@ -11,10 +11,11 @@ lazy_static! {
&["kind"]
)
.unwrap();
pub static ref ETAG: String = format!(r#"W/"{}""#, uuid::Uuid::new_v4().to_simple());
}
#[instrument(skip(state))]
pub async fn jsonfeed(state: Arc<State>) -> Result<impl Reply, Rejection> {
pub async fn jsonfeed(state: Arc<State>, since: Option<String>) -> Result<impl Reply, Rejection> {
HIT_COUNTER.with_label_values(&["json"]).inc();
let state = state.clone();
Ok(warp::reply::json(&state.jf))
@ -29,7 +30,22 @@ pub enum RenderError {
impl warp::reject::Reject for RenderError {}
#[instrument(skip(state))]
pub async fn atom(state: Arc<State>) -> Result<impl Reply, Rejection> {
pub async fn atom(state: Arc<State>, since: Option<String>) -> Result<impl Reply, Rejection> {
if let Some(etag) = since {
if etag == ETAG.clone() {
return Response::builder()
.status(304)
.header("Content-Type", "text/plain")
.body(
"You already have the newest version of this feed."
.to_string()
.into_bytes(),
)
.map_err(RenderError::Build)
.map_err(warp::reject::custom);
}
}
HIT_COUNTER.with_label_values(&["atom"]).inc();
let state = state.clone();
let mut buf = Vec::new();
@ -39,13 +55,29 @@ pub async fn atom(state: Arc<State>) -> Result<impl Reply, Rejection> {
Response::builder()
.status(200)
.header("Content-Type", "application/atom+xml")
.header("ETag", ETAG.clone())
.body(buf)
.map_err(RenderError::Build)
.map_err(warp::reject::custom)
}
#[instrument(skip(state))]
pub async fn rss(state: Arc<State>) -> Result<impl Reply, Rejection> {
pub async fn rss(state: Arc<State>, since: Option<String>) -> Result<impl Reply, Rejection> {
if let Some(etag) = since {
if etag == ETAG.clone() {
return Response::builder()
.status(304)
.header("Content-Type", "text/plain")
.body(
"You already have the newest version of this feed."
.to_string()
.into_bytes(),
)
.map_err(RenderError::Build)
.map_err(warp::reject::custom);
}
}
HIT_COUNTER.with_label_values(&["rss"]).inc();
let state = state.clone();
let mut buf = Vec::new();
@ -55,6 +87,7 @@ pub async fn rss(state: Arc<State>) -> Result<impl Reply, Rejection> {
Response::builder()
.status(200)
.header("Content-Type", "application/rss+xml")
.header("ETag", ETAG.clone())
.body(buf)
.map_err(RenderError::Build)
.map_err(warp::reject::custom)

57
src/main.rs
View File

@ -113,20 +113,39 @@ async fn main() -> Result<()> {
.and(with_state(state.clone()))
.and_then(handlers::patrons);
let files = warp::path("static").and(warp::fs::dir("./static"));
let css = warp::path("css").and(warp::fs::dir("./css"));
let files = warp::path("static")
.and(warp::fs::dir("./static"))
.map(|reply| {
warp::reply::with_header(
reply,
"Cache-Control",
"public, max-age=86400, stale-if-error=60",
)
});
let css = warp::path("css").and(warp::fs::dir("./css")).map(|reply| {
warp::reply::with_header(
reply,
"Cache-Control",
"public, max-age=86400, stale-if-error=60",
)
});
let sw = warp::path("sw.js").and(warp::fs::file("./static/js/sw.js"));
let robots = warp::path("robots.txt").and(warp::fs::file("./static/robots.txt"));
let favicon = warp::path("favicon.ico").and(warp::fs::file("./static/favicon/favicon.ico"));
let jsonfeed = warp::path("blog.json")
.and(with_state(state.clone()))
.and(warp::header::optional("if-none-match"))
.and_then(handlers::feeds::jsonfeed);
let atom = warp::path("blog.atom")
.and(with_state(state.clone()))
.and(warp::header::optional("if-none-match"))
.and_then(handlers::feeds::atom);
let rss = warp::path("blog.rss")
.and(with_state(state.clone()))
.and(warp::header::optional("if-none-match"))
.and_then(handlers::feeds::rss);
let sitemap = warp::path("sitemap.xml")
.and(with_state(state.clone()))
@ -135,6 +154,7 @@ async fn main() -> Result<()> {
let go_vanity_jsonfeed = warp::path("jsonfeed")
.and(warp::any().map(move || "christine.website/jsonfeed"))
.and(warp::any().map(move || "https://tulpa.dev/Xe/jsonfeed"))
.and(warp::any().map(move || "master"))
.and_then(go_vanity::gitea);
let metrics_endpoint = warp::path("metrics").and(warp::path::end()).map(move || {
@ -149,14 +169,37 @@ async fn main() -> Result<()> {
.unwrap()
});
let site = index
.or(contact.or(feeds).or(resume.or(signalboost)).or(patrons))
.or(blog_index.or(series.or(series_view).or(post_view)))
let static_pages = index
.or(feeds)
.or(resume.or(signalboost))
.or(patrons)
.or(jsonfeed.or(atom.or(sitemap)).or(rss))
.or(favicon.or(robots).or(sw))
.or(contact)
.map(|reply| {
warp::reply::with_header(
reply,
"Cache-Control",
"public, max-age=86400, stale-if-error=60",
)
});
let dynamic_pages = blog_index
.or(series.or(series_view).or(post_view))
.or(gallery_index.or(gallery_post_view))
.or(talk_index.or(talk_post_view))
.or(jsonfeed.or(atom).or(rss.or(sitemap)))
.or(files.or(css).or(favicon).or(sw.or(robots)))
.map(|reply| {
warp::reply::with_header(
reply,
"Cache-Control",
"public, max-age=600, stale-if-error=60",
)
});
let site = static_pages
.or(dynamic_pages)
.or(healthcheck.or(metrics_endpoint).or(go_vanity_jsonfeed))
.or(files.or(css))
.map(|reply| {
warp::reply::with_header(
reply,

7
src/post/frontmatter.rs
View File

@ -1,7 +1,6 @@
/// This code was borrowed from @fasterthanlime.
use color_eyre::eyre::{Result};
use serde::{Serialize, Deserialize};
use color_eyre::eyre::Result;
use serde::{Deserialize, Serialize};
#[derive(Eq, PartialEq, Deserialize, Default, Debug, Serialize, Clone)]
pub struct Data {
@ -81,7 +80,7 @@ impl Data {
};
}
}
_ => panic!("Expected newline, got {:?}",),
_ => panic!("Expected newline, got {:?}", ch),
},
State::ReadingFrontMatter { buf, line_start } => match ch {
'-' if *line_start => {

1
src/post/mod.rs
View File

@ -20,7 +20,6 @@ impl Into<jsonfeed::Item> for Post {
let mut result = jsonfeed::Item::builder()
.title(self.front_matter.title)
.content_html(self.body_html)
.content_text(self.body)
.id(format!("https://christine.website/{}", self.link))
.url(format!("https://christine.website/{}", self.link))
.date_published(self.date.to_rfc3339())

1
templates/blog_rss.rs.xml
View File

@ -9,6 +9,7 @@
<link>https://christine.website/blog</link>
<description>Tech, philosophy and more</description>
<generator>@APP https://github.com/Xe/site</generator>
<ttl>1440</ttl>
@for post in posts {
<item>
<guid>https://christine.website/@post.link</guid>

2
templates/footer.rs.html
View File

@ -7,7 +7,7 @@
<blockquote>Copyright 2020 Christine Dodrill. Any and all opinions listed here are my own and not representative of my employers; future, past and present.</blockquote>
<!--<p>Like what you see? Donate on <a href="https://www.patreon.com/cadey">Patreon</a> like <a href="/patrons">these awesome people</a>!</p>-->
<p>Looking for someone for your team? Take a look <a href="/signalboost">here</a>.</p>
<p>Served by @APP running @env!("out")/bin/xesite</a>, see <a href="https://github.com/Xe/site">source code here</a>.</p>
<p>Served by @env!("out")/bin/xesite</a>, see <a href="https://github.com/Xe/site">source code here</a>.</p>
</footer>
</div>