use crate::{
CAARecord, DnsRecord, DnsRecordType, Error, IntoFqdn, KeyValue, MXRecord, SRVRecord,
http::{HttpClient, HttpClientBuilder},
utils::strip_origin_from_name,
};
use base64::{Engine, engine::general_purpose::STANDARD as BASE64};
use serde::{Deserialize, Serialize};
use std::time::Duration;
const DEFAULT_API_ENDPOINT: &str = "https://api.domeneshop.no/v0";
#[derive(Clone)]
pub struct DomeneshopProvider {
client: HttpClient,
endpoint: String,
}
#[derive(Deserialize, Debug, Clone)]
pub struct Domain {
pub id: i64,
pub domain: String,
}
#[derive(Serialize, Deserialize, Debug, Clone)]
pub struct DnsRecordPayload {
pub host: String,
#[serde(rename = "type")]
pub record_type: String,
pub data: String,
pub ttl: u32,
#[serde(skip_serializing_if = "Option::is_none")]
pub priority: Option<u16>,
#[serde(skip_serializing_if = "Option::is_none")]
pub weight: Option<u16>,
#[serde(skip_serializing_if = "Option::is_none")]
pub port: Option<u16>,
#[serde(skip_serializing_if = "Option::is_none")]
pub flags: Option<u8>,
#[serde(skip_serializing_if = "Option::is_none")]
pub tag: Option<String>,
}
#[derive(Deserialize, Debug, Clone)]
pub struct ExistingDnsRecord {
pub id: i64,
pub host: String,
#[serde(rename = "type")]
pub record_type: String,
#[serde(default)]
pub data: String,
#[serde(default)]
pub priority: Option<u16>,
#[serde(default)]
pub weight: Option<u16>,
#[serde(default)]
pub port: Option<u16>,
#[serde(default)]
pub flags: Option<u8>,
#[serde(default)]
pub tag: Option<String>,
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct DomeneshopRecordContent {
pub record_type: &'static str,
pub data: String,
pub priority: Option<u16>,
pub weight: Option<u16>,
pub port: Option<u16>,
pub flags: Option<u8>,
pub tag: Option<String>,
}
impl DomeneshopProvider {
pub(crate) fn new(
api_token: impl AsRef<str>,
api_secret: impl AsRef<str>,
timeout: Option<Duration>,
) -> Self {
let credentials = format!("{}:{}", api_token.as_ref(), api_secret.as_ref());
let encoded = BASE64.encode(credentials.as_bytes());
let client = HttpClientBuilder::default()
.with_header("Authorization", format!("Basic {encoded}"))
.with_timeout(timeout)
.build();
Self {
client,
endpoint: DEFAULT_API_ENDPOINT.to_string(),
}
}
#[cfg(test)]
pub(crate) fn with_endpoint(self, endpoint: impl AsRef<str>) -> Self {
Self {
endpoint: endpoint.as_ref().to_string(),
..self
}
}
pub(crate) async fn set_rrset(
&self,
name: impl IntoFqdn<'_>,
record_type: DnsRecordType,
ttl: u32,
records: Vec<DnsRecord>,
origin: impl IntoFqdn<'_>,
) -> crate::Result<()> {
let name = name.into_name().into_owned();
let domain = origin.into_name().into_owned();
let host = strip_origin_from_name(&name, &domain, Some("@"));
let desired = build_contents(record_type, records)?;
let domain_id = self.find_domain_id(&domain).await?;
let existing = self.list_at(domain_id, &host, record_type).await?;
let mut existing_pool = existing;
let mut to_add: Vec<DomeneshopRecordContent> = Vec::new();
for content in desired {
if let Some(idx) = existing_pool
.iter()
.position(|r| record_matches(r, &content))
{
existing_pool.swap_remove(idx);
} else {
to_add.push(content);
}
}
for entry in existing_pool {
self.delete_record(domain_id, entry.id).await?;
}
for content in to_add {
self.create_record(domain_id, &host, ttl, &content).await?;
}
Ok(())
}
pub(crate) async fn add_to_rrset(
&self,
name: impl IntoFqdn<'_>,
record_type: DnsRecordType,
ttl: u32,
records: Vec<DnsRecord>,
origin: impl IntoFqdn<'_>,
) -> crate::Result<()> {
if records.is_empty() {
return Ok(());
}
let name = name.into_name().into_owned();
let domain = origin.into_name().into_owned();
let host = strip_origin_from_name(&name, &domain, Some("@"));
let desired = build_contents(record_type, records)?;
let domain_id = self.find_domain_id(&domain).await?;
let existing = self.list_at(domain_id, &host, record_type).await?;
for content in desired {
if existing.iter().any(|r| record_matches(r, &content)) {
continue;
}
self.create_record(domain_id, &host, ttl, &content).await?;
}
Ok(())
}
pub(crate) async fn remove_from_rrset(
&self,
name: impl IntoFqdn<'_>,
record_type: DnsRecordType,
records: Vec<DnsRecord>,
origin: impl IntoFqdn<'_>,
) -> crate::Result<()> {
if records.is_empty() {
return Ok(());
}
let name = name.into_name().into_owned();
let domain = origin.into_name().into_owned();
let host = strip_origin_from_name(&name, &domain, Some("@"));
let to_remove = build_contents(record_type, records)?;
let domain_id = self.find_domain_id(&domain).await?;
let existing = self.list_at(domain_id, &host, record_type).await?;
for content in to_remove {
if let Some(entry) = existing.iter().find(|r| record_matches(r, &content)) {
self.delete_record(domain_id, entry.id).await?;
}
}
Ok(())
}
pub(crate) async fn list_rrset(
&self,
name: impl IntoFqdn<'_>,
record_type: DnsRecordType,
origin: impl IntoFqdn<'_>,
) -> crate::Result<Vec<DnsRecord>> {
let name = name.into_name().into_owned();
let domain = origin.into_name().into_owned();
let host = strip_origin_from_name(&name, &domain, Some("@"));
let domain_id = self.find_domain_id(&domain).await?;
let existing = self.list_at(domain_id, &host, record_type).await?;
existing.into_iter().map(DnsRecord::try_from).collect()
}
async fn find_domain_id(&self, domain: &str) -> crate::Result<i64> {
let domains: Vec<Domain> = self
.client
.get(format!("{endpoint}/domains", endpoint = self.endpoint))
.send()
.await?;
domains
.into_iter()
.find(|d| d.domain == domain)
.map(|d| d.id)
.ok_or_else(|| Error::Api(format!("Domain {domain} not found")))
}
async fn list_at(
&self,
domain_id: i64,
host: &str,
record_type: DnsRecordType,
) -> crate::Result<Vec<ExistingDnsRecord>> {
let query = serde_urlencoded::to_string([("host", host), ("type", record_type.as_str())])
.unwrap_or_default();
let records: Vec<ExistingDnsRecord> = self
.client
.get(format!(
"{endpoint}/domains/{domain_id}/dns?{query}",
endpoint = self.endpoint
))
.send()
.await?;
let type_str = record_type.as_str();
Ok(records
.into_iter()
.filter(|r| r.host == host && r.record_type == type_str)
.collect())
}
async fn create_record(
&self,
domain_id: i64,
host: &str,
ttl: u32,
content: &DomeneshopRecordContent,
) -> crate::Result<()> {
let body = build_payload(host, ttl, content);
self.client
.post(format!(
"{endpoint}/domains/{domain_id}/dns",
endpoint = self.endpoint
))
.with_body(&body)?
.send_with_retry::<serde_json::Value>(3)
.await
.map(|_| ())
}
async fn delete_record(&self, domain_id: i64, record_id: i64) -> crate::Result<()> {
self.client
.delete(format!(
"{endpoint}/domains/{domain_id}/dns/{record_id}",
endpoint = self.endpoint
))
.send_with_retry::<serde_json::Value>(3)
.await
.map(|_| ())
}
}
fn build_payload(host: &str, ttl: u32, content: &DomeneshopRecordContent) -> DnsRecordPayload {
DnsRecordPayload {
host: host.to_string(),
record_type: content.record_type.to_string(),
data: content.data.clone(),
ttl,
priority: content.priority,
weight: content.weight,
port: content.port,
flags: content.flags,
tag: content.tag.clone(),
}
}
fn build_contents(
expected_type: DnsRecordType,
records: Vec<DnsRecord>,
) -> crate::Result<Vec<DomeneshopRecordContent>> {
let mut out = Vec::with_capacity(records.len());
for record in records {
if record.as_type() != expected_type {
return Err(Error::Api(format!(
"RRSet record type mismatch: expected {}, got {}",
expected_type.as_str(),
record.as_type().as_str(),
)));
}
out.push(DomeneshopRecordContent::try_from(record)?);
}
Ok(out)
}
fn record_matches(existing: &ExistingDnsRecord, desired: &DomeneshopRecordContent) -> bool {
existing.record_type == desired.record_type
&& existing.data == desired.data
&& existing.priority == desired.priority
&& existing.weight == desired.weight
&& existing.port == desired.port
&& existing.flags == desired.flags
&& existing.tag == desired.tag
}
impl TryFrom<DnsRecord> for DomeneshopRecordContent {
type Error = Error;
fn try_from(record: DnsRecord) -> Result<Self, Self::Error> {
match record {
DnsRecord::A(addr) => Ok(DomeneshopRecordContent {
record_type: "A",
data: addr.to_string(),
priority: None,
weight: None,
port: None,
flags: None,
tag: None,
}),
DnsRecord::AAAA(addr) => Ok(DomeneshopRecordContent {
record_type: "AAAA",
data: addr.to_string(),
priority: None,
weight: None,
port: None,
flags: None,
tag: None,
}),
DnsRecord::CNAME(target) => Ok(DomeneshopRecordContent {
record_type: "CNAME",
data: target,
priority: None,
weight: None,
port: None,
flags: None,
tag: None,
}),
DnsRecord::NS(target) => Ok(DomeneshopRecordContent {
record_type: "NS",
data: target,
priority: None,
weight: None,
port: None,
flags: None,
tag: None,
}),
DnsRecord::MX(mx) => Ok(DomeneshopRecordContent {
record_type: "MX",
data: mx.exchange,
priority: Some(mx.priority),
weight: None,
port: None,
flags: None,
tag: None,
}),
DnsRecord::TXT(text) => Ok(DomeneshopRecordContent {
record_type: "TXT",
data: text,
priority: None,
weight: None,
port: None,
flags: None,
tag: None,
}),
DnsRecord::SRV(srv) => Ok(DomeneshopRecordContent {
record_type: "SRV",
data: srv.target,
priority: Some(srv.priority),
weight: Some(srv.weight),
port: Some(srv.port),
flags: None,
tag: None,
}),
DnsRecord::TLSA(_) => Err(Error::Unsupported(
"TLSA records are not supported by Domeneshop".to_string(),
)),
DnsRecord::CAA(caa) => {
let (flags, tag, value) = caa.decompose();
Ok(DomeneshopRecordContent {
record_type: "CAA",
data: value,
priority: None,
weight: None,
port: None,
flags: Some(flags),
tag: Some(tag),
})
}
}
}
}
impl TryFrom<ExistingDnsRecord> for DnsRecord {
type Error = Error;
fn try_from(record: ExistingDnsRecord) -> Result<Self, Self::Error> {
match record.record_type.as_str() {
"A" => record
.data
.parse()
.map(DnsRecord::A)
.map_err(|e| Error::Parse(format!("invalid A data: {e}"))),
"AAAA" => record
.data
.parse()
.map(DnsRecord::AAAA)
.map_err(|e| Error::Parse(format!("invalid AAAA data: {e}"))),
"CNAME" => Ok(DnsRecord::CNAME(record.data)),
"NS" => Ok(DnsRecord::NS(record.data)),
"MX" => Ok(DnsRecord::MX(MXRecord {
exchange: record.data,
priority: record.priority.unwrap_or_default(),
})),
"TXT" => Ok(DnsRecord::TXT(record.data)),
"SRV" => Ok(DnsRecord::SRV(SRVRecord {
priority: record.priority.unwrap_or_default(),
weight: record.weight.unwrap_or_default(),
port: record.port.unwrap_or_default(),
target: record.data,
})),
"CAA" => {
let flags = record.flags.unwrap_or_default();
let tag = record.tag.unwrap_or_default();
Ok(DnsRecord::CAA(build_caa(flags, tag, record.data)?))
}
other => Err(Error::Parse(format!(
"Unsupported Domeneshop record type: {other}"
))),
}
}
}
fn build_caa(flags: u8, tag: String, value: String) -> crate::Result<CAARecord> {
let issuer_critical = flags & 0x80 != 0;
match tag.as_str() {
"issue" => {
let (name, options) = parse_caa_value(&value);
Ok(CAARecord::Issue {
issuer_critical,
name,
options,
})
}
"issuewild" => {
let (name, options) = parse_caa_value(&value);
Ok(CAARecord::IssueWild {
issuer_critical,
name,
options,
})
}
"iodef" => Ok(CAARecord::Iodef {
issuer_critical,
url: value,
}),
other => Err(Error::Parse(format!("unknown CAA tag: {other}"))),
}
}
fn parse_caa_value(value: &str) -> (Option<String>, Vec<KeyValue>) {
let mut parts = value.split(';').map(str::trim);
let name_part = parts.next().unwrap_or("").trim().to_string();
let name = if name_part.is_empty() {
None
} else {
Some(name_part)
};
let options = parts
.filter(|p| !p.is_empty())
.map(|p| match p.split_once('=') {
Some((k, v)) => KeyValue {
key: k.trim().to_string(),
value: v.trim().to_string(),
},
None => KeyValue {
key: p.trim().to_string(),
value: String::new(),
},
})
.collect();
(name, options)
}