Send log entries to postgres db

.editorconfig

@@ -2,5 +2,4 @@ root = true
 
 [*]
 indent_style = tab
-indent_size = 2
 

.env.sample

@@ -0,0 +1 @@
+DATABASE_URL=postgres://postgres@localhost/grimhilde

.gitignore

@@ -1 +1,2 @@
 /target
+.env

Cargo.lock

@@ -365,6 +365,7 @@ dependencies = [
 name = "ingest"
 version = "0.1.0"
 dependencies = [
+ "dotenv",
  "ipnetwork 0.18.0",
  "serde",
  "serde_json",

ingest/Cargo.toml

@@ -6,6 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+dotenv = "0.15"
 tempfile = "3"
 serde = { version = "1.0", features = [ "derive" ] }
 serde_json = "1.0"

ingest/migrations/20220219194018_initial.down.sql

@@ -0,0 +1,7 @@
+-- Add down migration script here
+DROP TABLE hits;
+DROP TABLE referrers;
+DROP TABLE user_agents;
+DROP TABLE remote_addresses;
+DROP TABLE hosts;
+DROP TABLE paths;

ingest/migrations/20220219194018_initial.up.sql

@@ -0,0 +1,58 @@
+-- Location of the served file
+CREATE TABLE paths (
+	-- The path string
+	path text UNIQUE NOT NULL,
+	-- The id of the path string
+	id serial PRIMARY KEY NOT NULL
+);
+
+-- Host header strings
+CREATE TABLE hosts (
+	-- Host header value
+	host text UNIQUE NOT NULL,
+	-- The ID of the value
+	id serial PRIMARY KEY NOT NULL
+);
+
+-- Address for the requester
+CREATE TABLE remote_addresses (
+	-- The IP address of the requester
+	addr inet UNIQUE NOT NULL,
+	-- The id of the address
+	id serial PRIMARY KEY NOT NULL
+);
+
+-- User agent strings
+CREATE TABLE user_agents (
+	-- A User-Agent header value. Max length is the default maximum header size in nginx.
+	agent varchar(8192) NOT NULL,
+	-- The string's ID
+	id serial PRIMARY KEY NOT NULL
+);
+
+CREATE TABLE referrers (
+	-- A Referer header value. Max length is the default maximum header size in nginx.
+	referrer varchar(8192) NOT NULL,
+	-- The string's ID
+	id serial PRIMARY KEY NOT NULL
+);
+
+-- Requests
+CREATE TABLE hits (
+	-- The size of the response payload
+	size integer NOT NULL,
+	-- Reference to a path id
+	path serial NOT NULL REFERENCES paths (id),
+	-- Reference to a remote host id
+	remote serial NOT NULL REFERENCES remote_addresses (id),
+	-- Reference to a host header id
+	host serial NOT NULL REFERENCES hosts (id),
+	-- Reference to a user agent
+	user_agent serial NOT NULL REFERENCES user_agents (id),
+	-- Reference to a referrer
+	referrer serial NOT NULL REFERENCES referrers (id),
+	-- Was the request served over HTTPS
+	secure boolean NOT NULL,
+	-- The time the request was made
+	time timestamp with time zone NOT NULL
+);

ingest/src/db.rs

@@ -0,0 +1,59 @@
+// grimhilde - mirror stats
+// Copyright (C) 2022 Amanda Graven and Emelie Graven
+// Licensed under the EUPL
+//
+use std::error::Error as StdError;
+
+use sqlx::PgPool;
+
+use crate::Request;
+
+/// Connect to a postgress address.
+pub async fn connect(address: &str) -> sqlx::Result<PgPool> {
+	let pool = PgPool::connect(address).await?;
+	sqlx::migrate!().run(&pool).await?;
+	Ok(pool)
+}
+
+/// Insert a request hit into the database
+pub async fn insert(pool: &PgPool, req: Request) -> Result<(), Box<dyn StdError>> {
+	let mut trans = pool.begin().await?;
+
+	// Get the id's for deduplicated values. Insert a value if one is missing.
+	let path_id = sqlx::query!(
+		"INSERT INTO paths (path) VALUES ($1) ON CONFLICT DO NOTHING RETURNING id",
+		&req.path,
+	).fetch_one(&mut *trans).await?.id;
+	let remote_id = sqlx::query!(
+		"INSERT INTO remote_addresses (addr) VALUES ($1) ON CONFLICT DO NOTHING RETURNING id",
+		req.addr)
+	.fetch_one(&mut *trans).await?.id;
+	let host_id = sqlx::query!(
+		"INSERT INTO hosts (host) VALUES ($1) ON CONFLICT DO NOTHING RETURNING id",
+		&req.host)
+	.fetch_one(&mut *trans).await?.id;
+	let user_agent_id = sqlx::query!(
+		"INSERT INTO user_agents (agent) VALUES ($1) ON CONFLICT DO NOTHING RETURNING id",
+		&req.user_agent,
+	).fetch_one(&mut *trans).await?.id;
+	let referrer_id = sqlx::query!(
+		"INSERT INTO referrers (referrer) VALUES ($1) ON CONFLICT DO NOTHING RETURNING id",
+		&req.referrer,
+	).fetch_one(&mut *trans).await?.id;
+
+	sqlx::query!(
+		"INSERT INTO hits (size, path, remote, host, user_agent, referrer, secure, time) \
+		VALUES ($1, $2, $3, $4, $5, $6, $7, $8)",
+		req.size,
+		path_id,
+		remote_id,
+		host_id,
+		user_agent_id,
+		referrer_id,
+		req.secure,
+		req.timestamp,
+	).execute(&mut *trans).await?;
+
+	trans.commit().await?;
+	Ok(())
+}

ingest/src/main.rs

@@ -1,83 +1,101 @@
 // grimhilde - mirror stats
-// Copyright (C) 2022 Amanda Graven, <amanda@graven.dev> & Emelie Graven <emelie@graven.dev>
+// Copyright (C) 2022 Amanda Graven and Emelie Graven
 // Licensed under the EUPL
 
-use sqlx::types::{time::OffsetDateTime, ipnetwork::IpNetwork};
+use sqlx::{types::{time::OffsetDateTime, ipnetwork::IpNetwork}, PgPool};
 use tokio::net::UdpSocket;
 use std::{io, str};
 use serde::{Serialize, Deserialize};
 
+mod db;
+
 #[derive(Deserialize, Serialize, Debug, Clone)]
-struct RawRequest {
-    size: u64,
-    path: String,
-    addr: String,
-    user_agent: String,
-    referrer: String,
-    secure: bool,
-    timestamp: String,
+pub struct RawRequest {
+	size: i32,
+	path: String,
+	addr: String,
+	host: String,
+	user_agent: String,
+	referrer: String,
+	secure: bool,
+	timestamp: String,
 }
 
-#[derive(Serialize)]
-struct Request {
-    size: u64,
-    path: String,
-    addr: IpNetwork,
-    user_agent: String,
-    referrer: String,
-    secure: bool,
-    timestamp: OffsetDateTime
+//#[derive(Serialize)]
+pub struct Request {
+	size: i32,
+	path: String,
+	addr: IpNetwork,
+	host: String,
+	user_agent: String,
+	referrer: String,
+	secure: bool,
+	timestamp: OffsetDateTime
 }
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    // Connect to a peer
-    let socket = UdpSocket::bind("127.0.0.1:9210").await?;
+	dotenv::dotenv()?;
+	// Connect to the postgres database
+	let pool = db::connect(&std::env::var("DATABASE_URL")?).await?;
 
-    loop {
-        // The buffer is **not** included in the async task and will
-        // only exist on the stack).
-        let mut buf = [0; 8192];
+	// Connect to a peer
+	let socket = UdpSocket::bind("127.0.0.1:9210").await?;
 
-        // Try to recv data, this may still fail with `WouldBlock`
-        // if the readiness event is a false positive.
-        match socket.recv(&mut buf).await {
-            Ok(n) => {
-                 let message = str::from_utf8(&buf[..n])?;
-                 // The incoming nginx logs are already structured as json.
-                 // We identify the start of the log string...
-                 let index = match message.find('{') {
-                     Some(i) => i,
-                     None => continue,
-                 };
-                 // ...and strip of the prefix.
-                 let (prefix, message) = message.split_at(index);
-                 // Nginx should be configured to tag log entries with "mirror"
-                 // Making sure this tag is present is at least a rudimentary
-                 // protection against data accidentally coming in from
-                 // elsewhere
-                 if prefix.ends_with("mirror: ") {
-                    let req: RawRequest = serde_json::from_str(message)?;
-                    let req: Request = Request {
-                        size: req.size,
-                        path: req.path,
-                        addr: req.addr.parse()?,
-                        user_agent: req.user_agent,
-                        referrer: req.referrer,
-                        secure: req.secure,
-                        timestamp: OffsetDateTime::parse(req.timestamp, "%d/%m/%Y:%T %z")?
-                    };
 
-                 }
-            }
-            Err(ref e) if e.kind() == io::ErrorKind::WouldBlock => {
-                continue;
-            }
-            Err(e) => {
-                return Err(e.into());
-            }
-        }
-    }
+	loop {
+		// The buffer is **not** included in the async task and will
+		// only exist on the stack).
+		let mut buf = [0; 8192];
 
-    Ok(())
+		// Try to recv data, this may still fail with `WouldBlock`
+		// if the readiness event is a false positive.
+		match socket.recv(&mut buf).await {
+			Ok(n) => match receive_message(&pool, &buf[..n]).await {
+				Ok(()) => (),
+				Err(e) => {
+					println!("ERROR: {}", e);
+					// TODO: println!("Log message was: {}", &buf[..n]);
+				},
+			}
+			Err(ref e) if e.kind() == io::ErrorKind::WouldBlock => {
+				continue;
+			}
+			Err(e) => {
+				return Err(e.into());
+			}
+		}
+	}
+}
+
+async fn receive_message(pool: &PgPool, message: &[u8]) -> Result<(), Box<dyn std::error::Error>> {
+	let message = str::from_utf8(message)?;
+	// The incoming nginx logs are already structured as json.
+	// We identify the start of the log string...
+	let index = match message.find('{') {
+		Some(i) => i,
+		None => return Err(String::from("JSON object missing from log").into()),
+	};
+	// ...and strip of the prefix.
+	let (prefix, json) = message.split_at(index);
+	// Nginx should be configured to tag log entries with "mirror"
+	// Making sure this tag is present is at least a rudimentary
+	// protection against data accidentally coming in from
+	// elsewhere
+	if !prefix.ends_with("mirror: ") {
+		return Err(String::from("mirror prefix not present, got log line").into());
+	}
+	let req: RawRequest = serde_json::from_str(json)?;
+	let req: Request = Request {
+		size: req.size,
+		path: req.path,
+		addr: req.addr.parse()?,
+		host: req.host,
+		user_agent: req.user_agent,
+		referrer: req.referrer,
+		secure: req.secure,
+		timestamp: OffsetDateTime::parse(req.timestamp, "%d/%m/%Y:%T %z")?
+	};
+	db::insert(pool, req).await?;
+	Ok(())
 }

rustfmt.toml

@@ -0,0 +1,2 @@
+edition = "2021"
+hard_tabs = true