Rewrite Cloudflare module, minor changes to config module

This commit is contained in:
Neshura 2023-12-26 04:10:00 +01:00
parent fbf31a4115
commit ab23597218
Signed by: Neshura
GPG key ID: B6983AAA6B9A7A6C
2 changed files with 388 additions and 9 deletions

View file

@ -1 +1,357 @@
const API_BASE: &str = "https://api.cloudflare.com/client/v4"; use std::collections::HashMap;
use std::env;
use std::env::VarError;
use std::error::Error;
use std::net::{Ipv4Addr, Ipv6Addr};
use log::{error, warn};
use reqwest::header::{HeaderMap, HeaderValue};
use reqwest::{Url};
use reqwest::blocking::{Response, Client};
use serde_derive::{Deserialize, Serialize};
use strum_macros::{Display, IntoStaticStr};
use systemd_journal_logger::connected_to_journal;
use url::ParseError;
use crate::config::{ZoneConfig, ZoneEntry};
const API_BASE: &str = "https://api.cloudflare.com/client/v4";
#[derive(Serialize, Deserialize, Debug)]
struct CloudflareApiResults {
result: Vec<CloudflareDnsRecord>,
success: bool,
}
#[derive(Serialize, Deserialize, Debug)]
struct CloudflareApiResult {
success: bool,
}
pub(crate) struct CloudflareZone {
email: String,
key: String,
id: String,
}
impl CloudflareZone {
pub(crate) fn new(zone: &ZoneConfig) -> Result<Self, VarError> {
let key = env::var("CF_API_TOKEN")?;
Ok(Self {
email: zone.email.clone(),
key,
id: zone.id.clone(),
})
}
fn generate_auth_headers(&self) -> HeaderMap {
let mut headers = HeaderMap::new();
headers.insert(
"X-Auth-Email",
HeaderValue::from_str(self.email.as_str()).expect("After CloudflareZone gets created the required Values should exist"),
);
headers.insert(
"X-Auth-Key",
HeaderValue::from_str(self.key.as_str()).expect("After CloudflareZone gets created the required Values should exist"),
);
headers
}
pub(crate) fn get_entries(&self) -> Result<Vec<CloudflareDnsRecord>, ()> {
let endpoint = format!("{}/zones/{}/dns_records", API_BASE, self.id);
match self.get(&endpoint) {
Ok(response) => {
return if response.status().is_success() {
let entries = match response.json::<CloudflareApiResults>() {
Ok(data) => data,
Err(e) => {
let err_msg = format!("Unable to parse API response. Error: {e}");
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
return Err(())
}
};
Ok(entries.result)
} else {
let err_msg = format!("Unable to fetch Cloudflare Zone Entries. Error: {}", response.status());
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
Err(())
}
}
Err(e) => {
let err_msg = format!("Unable to access Cloudflare API. Error: {e}");
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
Err(())
},
}
}
pub(crate) fn update(&self, entry: &ZoneEntry, r#type: &DnsRecordType, id: &String, ipv6: Option<Ipv6Addr>, ipv4: Option<Ipv4Addr>) -> Result<(), ()> {
let endpoint = format!("{}/zones/{}/dns_records/{}", API_BASE, self.id, id);
match r#type {
DnsRecordType::A => {
return if let Some(ip) = ipv4 {
let json_body = self.create_body("A", &entry.name, ip.to_string().as_str());
match self.put(&endpoint, &json_body) {
Ok(response) => {
self.validate_response(response)
},
Err(e) => {
let err_msg = format!("Unable to access Cloudflare API. Error: {e}");
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
Err(())
}
}
} else {
let err_msg = "Missing IPv4 for Update.";
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
Err(())
}
},
DnsRecordType::AAAA => {
return if let Some(ip) = ipv6 {
let json_body = self.create_body("AAAA", &entry.name, ip.to_string().as_str());
match self.put(&endpoint, &json_body) {
Ok(response) => {
self.validate_response(response)
},
Err(e) => {
let err_msg = format!("Unable to access Cloudflare API. Error: {e}");
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
Err(())
}
}
} else {
let err_msg = "Missing IPv6 for Update.";
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
Err(())
}
},
_ => {
let warn_msg = "Config contains unsupported type identifier";
match connected_to_journal() {
true => warn!("[WARN] {warn_msg}"),
false => println!("[WARN] {warn_msg}"),
}
return Err(())
}
}
}
pub(crate) fn create(&self, entry: &ZoneEntry, r#type: &DnsRecordType, ipv6: Option<Ipv6Addr>, ipv4: Option<Ipv4Addr>) -> Result<(), ()> {
let endpoint = format!("{}/zones/{}/dns_records", API_BASE, self.id);
match r#type {
DnsRecordType::A => {
return if let Some(ip) = ipv4 {
let json_body = self.create_body("A", &entry.name, ip.to_string().as_str());
match self.post(&endpoint, &json_body) {
Ok(response) => {
self.validate_response(response)
},
Err(e) => {
let err_msg = format!("Unable to access Cloudflare API. Error: {e}");
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
Err(())
}
}
} else {
let err_msg = "Missing IPv4 for Update.";
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
Err(())
}
},
DnsRecordType::AAAA => {
return if let Some(ip) = ipv6 {
let json_body = self.create_body("AAAA", &entry.name, ip.to_string().as_str());
match self.post(&endpoint, &json_body) {
Ok(response) => {
self.validate_response(response)
},
Err(e) => {
let err_msg = format!("Unable to access Cloudflare API. Error: {e}");
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
Err(())
}
}
} else {
let err_msg = "Missing IPv6 for Update.";
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
Err(())
}
},
_ => {
let warn_msg = "Config contains unsupported type identifier";
match connected_to_journal() {
true => warn!("[WARN] {warn_msg}"),
false => println!("[WARN] {warn_msg}"),
}
return Err(())
}
}
}
fn get(&self, url: &str) -> Result<Response, Box<dyn Error>> {
let url_parsed = self.parse_url(url)?;
match Client::new()
.get(url_parsed)
.headers(self.generate_auth_headers())
.send() {
Ok(result) => Ok(result),
Err(e) => Err(Box::new(e)),
}
}
fn post(&self, url: &str, data: &HashMap<String, String>) -> Result<Response, Box<dyn Error>> {
let url_parsed = self.parse_url(url)?;
match Client::new()
.post(url_parsed)
.headers(self.generate_auth_headers())
.json(data)
.send() {
Ok(result) => Ok(result),
Err(e) => Err(Box::new(e)),
}
}
fn put(&self, url: &str, data: &HashMap<String, String>) -> Result<Response, Box<dyn Error>> {
let url_parsed = self.parse_url(url)?;
match Client::new()
.put(url_parsed)
.headers(self.generate_auth_headers())
.json(data)
.send() {
Ok(result) => Ok(result),
Err(e) => Err(Box::new(e)),
}
}
fn parse_url(&self, input: &str) -> Result<Url, ParseError> {
match Url::parse(input) {
Ok(url) => Ok(url),
Err(e) => {
let err_msg = format!("Unable to parse URL. Error: {}", e);
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
return Err(e)
}
}
}
fn create_body(&self, r#type: &str, name: &String, ip: &str) -> HashMap<String, String> {
let mut body = HashMap::new();
body.insert("type".to_string(), r#type.to_string());
body.insert("name".to_string(), name.clone());
body.insert("content".to_string(), ip.to_string());
body
}
fn validate_response(&self, response: Response) -> Result<(), ()> {
if response.status().is_success() {
let data = match response.json::<CloudflareApiResult>() {
Ok(data) => data,
Err(e) => {
let err_msg = format!("Unable to parse API response. Error: {e}");
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
return Err(())
}
};
match data.success {
true => return Ok(()),
false => {
let err_msg = format!("Unexpected error while updating DNS record. Info: {:?}", data);
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
return Err(())
}
}
} else {
let err_msg = format!("Unable to post/put Cloudflare DNS entry. Error: {}", response.status());
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
Err(())
}
}
}
#[derive(Serialize, Deserialize, PartialEq, Debug, Clone, Copy, Display, IntoStaticStr)]
pub(crate) enum DnsRecordType {
A,
AAAA,
CAA,
CERT,
CNAME,
DNSKEY,
DS,
HTTPS,
LOC,
MX,
NAPTR,
NS,
PTR,
SMIMEA,
SRV,
SSHFP,
SVCB,
TLSA,
TXT,
URI
}
#[derive(Serialize, Deserialize, PartialEq, Debug)]
pub(crate) struct CloudflareDnsRecord {
pub(crate) id: String,
pub(crate) name: String,
pub(crate) r#type: DnsRecordType,
content: String
}

View file

@ -2,13 +2,19 @@ use std::collections::HashMap;
use std::error::Error; use std::error::Error;
use std::fs; use std::fs;
use std::hash::Hash; use std::hash::Hash;
use std::net::Ipv6Addr;
use ipnet::{IpAdd, IpBitAnd, IpBitOr, IpSub};
use std::str::FromStr;
use log::{error, warn}; use log::{error, warn};
use serde_derive::{Deserialize, Serialize}; use serde_derive::{Deserialize, Serialize};
use systemd_journal_logger::connected_to_journal;
use crate::cloudflare::DnsRecordType;
use crate::cloudflare::DnsRecordType::{A, AAAA};
#[derive(Serialize, Deserialize, Clone, Debug)] #[derive(Serialize, Deserialize, Clone, Debug)]
pub(crate) struct InterfaceConfig { pub(crate) struct InterfaceConfig {
pub(crate) host_address: String, pub(crate) host_address: Ipv6Addr,
pub(crate) interfaces: HashMap<String, String>, pub(crate) interfaces: HashMap<String, Ipv6Addr>,
} }
impl InterfaceConfig { impl InterfaceConfig {
@ -26,13 +32,30 @@ impl InterfaceConfig {
Ok(cfg) Ok(cfg)
} }
pub(crate) fn full_v6(&self, interface_name: &String, host_v6: Ipv6Addr) -> Result<Ipv6Addr, ()> {
let host_range = Ipv6Addr::from(host_v6.saturating_sub(self.host_address));
let interface_address = match self.interfaces.get(interface_name) {
Some(address) => address.clone(),
None => {
let err_msg = "Malformed IP in interfaces.toml";
match connected_to_journal() {
true => error!("[ERROR] {err_msg}"),
false => eprintln!("[ERROR] {err_msg}"),
}
return Err(());
}
};
let interface_ip = host_range.bitor(interface_address);
Ok(interface_ip)
}
} }
impl Default for InterfaceConfig { impl Default for InterfaceConfig {
fn default() -> Self { fn default() -> Self {
InterfaceConfig { InterfaceConfig {
host_address: "::".to_string(), host_address: Ipv6Addr::from_str("::").expect("Malformed literal in code"),
interfaces: HashMap::from([(" ".to_string(), "::".to_string())]), interfaces: HashMap::from([(" ".to_string(), Ipv6Addr::from(0))]),
} }
} }
} }
@ -42,7 +65,7 @@ impl Default for InterfaceConfig {
#[derive(Serialize, Deserialize, Clone, Debug)] #[derive(Serialize, Deserialize, Clone, Debug)]
pub(crate) struct ZoneEntry { pub(crate) struct ZoneEntry {
pub(crate) name: String, pub(crate) name: String,
pub(crate) rtype: u8, pub(crate) r#type: Vec<DnsRecordType>,
pub(crate) interface: String, pub(crate) interface: String,
} }
@ -50,7 +73,7 @@ impl Default for ZoneEntry {
fn default() -> Self { fn default() -> Self {
ZoneEntry { ZoneEntry {
name: " ".to_string(), name: " ".to_string(),
rtype: 10, r#type: vec![A, AAAA],
interface: " ".to_string(), interface: " ".to_string(),
} }
} }
@ -59,7 +82,7 @@ impl Default for ZoneEntry {
#[derive(Serialize, Deserialize, Clone, Debug)] #[derive(Serialize, Deserialize, Clone, Debug)]
pub(crate) struct ZoneConfig { pub(crate) struct ZoneConfig {
pub(crate) email: String, pub(crate) email: String,
pub(crate) zone: String, pub(crate) name: String,
pub(crate) id: String, pub(crate) id: String,
#[serde(alias="entry")] #[serde(alias="entry")]
pub(crate) entries: Vec<ZoneEntry> pub(crate) entries: Vec<ZoneEntry>
@ -109,7 +132,7 @@ impl Default for ZoneConfig {
fn default() -> Self { fn default() -> Self {
ZoneConfig { ZoneConfig {
email: " ".to_string(), email: " ".to_string(),
zone: " ".to_string(), name: " ".to_string(),
id: " ".to_string(), id: " ".to_string(),
entries: vec![ZoneEntry::default()], entries: vec![ZoneEntry::default()],
} }