use crate::{
CAARecord, DnsRecord, DnsRecordType, Error, IntoFqdn, KeyValue, MXRecord, SRVRecord,
http::{HttpClient, HttpClientBuilder},
utils::strip_origin_from_name,
utils::txt_chunks_to_text,
};
use std::sync::{Arc, Mutex};
use std::time::{Duration, Instant};
const DEFAULT_API_ENDPOINT: &str = "https://dmapi.joker.com/request";
const MIN_TTL: u32 = 300;
#[derive(Clone)]
pub enum JokerAuth {
ApiKey(String),
UsernamePassword { username: String, password: String },
}
impl JokerAuth {
pub fn api_key(key: impl Into<String>) -> Self {
Self::ApiKey(key.into())
}
pub fn username_password(username: impl Into<String>, password: impl Into<String>) -> Self {
Self::UsernamePassword {
username: username.into(),
password: password.into(),
}
}
fn login_params(&self) -> Vec<(&'static str, String)> {
match self {
Self::ApiKey(key) => vec![("api-key", key.clone())],
Self::UsernamePassword { username, password } => vec![
("username", username.clone()),
("password", password.clone()),
],
}
}
fn validate(&self) -> crate::Result<()> {
match self {
Self::ApiKey(key) if key.is_empty() => {
Err(Error::Api("Joker API key must not be empty".to_string()))
}
Self::UsernamePassword { username, password }
if username.is_empty() || password.is_empty() =>
{
Err(Error::Api(
"Joker username and password must not be empty".to_string(),
))
}
_ => Ok(()),
}
}
}
#[derive(Clone)]
pub struct JokerProvider {
auth: Arc<Mutex<AuthState>>,
credentials: JokerAuth,
endpoint: String,
client: HttpClient,
}
struct AuthState {
session: Option<(String, Instant)>,
}
impl JokerProvider {
pub(crate) fn new(auth: JokerAuth, timeout: Option<Duration>) -> crate::Result<Self> {
auth.validate()?;
let client = HttpClientBuilder::default()
.with_header("Content-Type", "application/x-www-form-urlencoded")
.with_header("Accept", "text/plain")
.with_timeout(timeout)
.build();
Ok(Self {
auth: Arc::new(Mutex::new(AuthState { session: None })),
credentials: auth,
endpoint: DEFAULT_API_ENDPOINT.to_string(),
client,
})
}
#[cfg(test)]
pub(crate) fn with_endpoint(self, endpoint: impl AsRef<str>) -> Self {
Self {
endpoint: endpoint.as_ref().trim_end_matches('/').to_string(),
..self
}
}
fn clear_session(&self) {
if let Ok(mut guard) = self.auth.lock() {
guard.session = None;
}
}
async fn login(&self) -> crate::Result<String> {
let params = self.credentials.login_params();
let body =
serde_urlencoded::to_string(¶ms).map_err(|e| Error::Serialize(e.to_string()))?;
let response = self
.client
.post(format!("{}/login", self.endpoint))
.with_raw_body(body)
.send_raw()
.await?;
let parsed = parse_response(&response);
check_status(&parsed)?;
let sid = parsed
.auth_sid
.ok_or_else(|| Error::Api("Joker login did not return Auth-Sid".to_string()))?;
let expiry = Instant::now() + Duration::from_secs(50 * 60);
let mut guard = self
.auth
.lock()
.map_err(|_| Error::Client("Joker session lock poisoned".to_string()))?;
guard.session = Some((sid.clone(), expiry));
Ok(sid)
}
async fn ensure_session(&self) -> crate::Result<String> {
{
let guard = self
.auth
.lock()
.map_err(|_| Error::Client("Joker session lock poisoned".to_string()))?;
if let Some((sid, expiry)) = &guard.session
&& Instant::now() < *expiry
{
return Ok(sid.clone());
}
}
self.login().await
}
async fn dmapi_call(
&self,
path: &str,
extra: &[(&str, &str)],
) -> crate::Result<ParsedResponse> {
for attempt in 0..2u8 {
let sid = self.ensure_session().await?;
let mut params: Vec<(&str, &str)> = vec![("auth-sid", sid.as_str())];
params.extend_from_slice(extra);
let body = serde_urlencoded::to_string(¶ms)
.map_err(|e| Error::Serialize(e.to_string()))?;
let response = self
.client
.post(format!("{}/{}", self.endpoint, path))
.with_raw_body(body)
.send_raw()
.await?;
let parsed = parse_response(&response);
if attempt == 0 && is_auth_failure(&parsed) {
self.clear_session();
continue;
}
check_status(&parsed)?;
return Ok(parsed);
}
Err(Error::Api("Joker DMAPI: repeated auth failure".to_string()))
}
async fn get_zone(&self, domain: &str) -> crate::Result<String> {
let parsed = self
.dmapi_call("dns-zone-get", &[("domain", domain)])
.await?;
Ok(parsed.body)
}
async fn put_zone(&self, domain: &str, zone: String) -> crate::Result<()> {
let trimmed = zone.trim().to_string();
self.dmapi_call(
"dns-zone-put",
&[("domain", domain), ("zone", trimmed.as_str())],
)
.await?;
Ok(())
}
pub(crate) async fn set_rrset(
&self,
name: impl IntoFqdn<'_>,
record_type: DnsRecordType,
ttl: u32,
records: Vec<DnsRecord>,
origin: impl IntoFqdn<'_>,
) -> crate::Result<()> {
check_record_types(record_type, &records)?;
reject_tlsa(record_type)?;
let name = name.into_name();
let domain = origin.into_name();
let subdomain = strip_origin_from_name(&name, &domain, Some("@"));
let ttl = clamp_ttl(ttl);
let mut new_entries: Vec<String> = Vec::new();
for record in &records {
let rendered = render_zone_entries(&subdomain, record, ttl)?;
new_entries.extend(rendered);
}
let zone = self.get_zone(&domain).await?;
let pruned = remove_entries(&zone, &subdomain, record_type);
if records.is_empty() {
if pruned.trim() == zone.trim() {
return Ok(());
}
return self.put_zone(&domain, pruned).await;
}
let mut updated = pruned;
append_lines(&mut updated, &new_entries);
self.put_zone(&domain, updated).await
}
pub(crate) async fn add_to_rrset(
&self,
name: impl IntoFqdn<'_>,
record_type: DnsRecordType,
ttl: u32,
records: Vec<DnsRecord>,
origin: impl IntoFqdn<'_>,
) -> crate::Result<()> {
check_record_types(record_type, &records)?;
reject_tlsa(record_type)?;
if records.is_empty() {
return Ok(());
}
let name = name.into_name();
let domain = origin.into_name();
let subdomain = strip_origin_from_name(&name, &domain, Some("@"));
let ttl = clamp_ttl(ttl);
let zone = self.get_zone(&domain).await?;
let existing_rdata = collect_rdata(&zone, &subdomain, record_type);
let mut to_append: Vec<String> = Vec::new();
for record in &records {
let rendered = render_zone_entries(&subdomain, record, ttl)?;
for line in rendered {
let rdata = extract_rdata(&line, &subdomain, record_type);
let already = existing_rdata
.iter()
.any(|present| rdata_equivalent(present, &rdata));
let queued = to_append
.iter()
.map(|l| extract_rdata(l, &subdomain, record_type))
.any(|q| rdata_equivalent(&q, &rdata));
if !already && !queued {
to_append.push(line);
}
}
}
if to_append.is_empty() {
return Ok(());
}
let mut updated = zone.trim_end().to_string();
append_lines(&mut updated, &to_append);
self.put_zone(&domain, updated).await
}
pub(crate) async fn remove_from_rrset(
&self,
name: impl IntoFqdn<'_>,
record_type: DnsRecordType,
records: Vec<DnsRecord>,
origin: impl IntoFqdn<'_>,
) -> crate::Result<()> {
check_record_types(record_type, &records)?;
reject_tlsa(record_type)?;
if records.is_empty() {
return Ok(());
}
let name = name.into_name();
let domain = origin.into_name();
let subdomain = strip_origin_from_name(&name, &domain, Some("@"));
let mut targets: Vec<String> = Vec::new();
for record in &records {
let rendered = render_zone_entries(&subdomain, record, MIN_TTL)?;
for line in rendered {
targets.push(extract_rdata(&line, &subdomain, record_type));
}
}
let zone = self.get_zone(&domain).await?;
let updated = filter_lines(&zone, |line| {
if !line_matches_name_and_type(line, &subdomain, record_type) {
return true;
}
let rdata = extract_rdata(line, &subdomain, record_type);
!targets.iter().any(|t| rdata_equivalent(t, &rdata))
});
if updated.trim() == zone.trim() {
return Ok(());
}
self.put_zone(&domain, updated).await
}
pub(crate) async fn list_rrset(
&self,
name: impl IntoFqdn<'_>,
record_type: DnsRecordType,
origin: impl IntoFqdn<'_>,
) -> crate::Result<Vec<DnsRecord>> {
reject_tlsa(record_type)?;
let name = name.into_name();
let domain = origin.into_name();
let subdomain = strip_origin_from_name(&name, &domain, Some("@"));
let zone = self.get_zone(&domain).await?;
let mut out = Vec::new();
for line in zone.lines() {
let trimmed = line.trim();
if trimmed.is_empty() || trimmed.starts_with('#') || trimmed.starts_with('$') {
continue;
}
if !line_matches_name_and_type(line, &subdomain, record_type) {
continue;
}
let fields = tokenize_zone_line(trimmed);
if let Some(record) = parse_zone_record(record_type, &fields)? {
out.push(record);
}
}
Ok(out)
}
}
#[derive(Default, Debug)]
struct ParsedResponse {
status_code: Option<i64>,
status_text: String,
auth_sid: Option<String>,
body: String,
}
fn parse_response(message: &str) -> ParsedResponse {
let mut parsed = ParsedResponse::default();
let (head, body) = match message.split_once("\n\n") {
Some(parts) => parts,
None => (message, ""),
};
for line in head.lines() {
if line.trim().is_empty() {
continue;
}
if let Some((k, v)) = line.split_once(':') {
let key = k.trim();
let value = v.trim();
match key {
"Status-Code" => parsed.status_code = value.parse().ok(),
"Status-Text" => parsed.status_text = value.to_string(),
"Auth-Sid" => parsed.auth_sid = Some(value.to_string()),
_ => {}
}
}
}
parsed.body = body.to_string();
parsed
}
fn check_status(parsed: &ParsedResponse) -> crate::Result<()> {
match parsed.status_code {
Some(0) | None => Ok(()),
Some(code) => Err(Error::Api(format!(
"Joker DMAPI error {}: {}",
code, parsed.status_text
))),
}
}
fn is_auth_failure(parsed: &ParsedResponse) -> bool {
match parsed.status_code {
Some(code) if code != 0 => {
let text = parsed.status_text.to_ascii_lowercase();
text.contains("auth")
|| text.contains("session")
|| text.contains("login")
|| text.contains("not logged")
|| text.contains("sid")
}
_ => false,
}
}
fn clamp_ttl(ttl: u32) -> u32 {
ttl.max(MIN_TTL)
}
fn check_record_types(expected: DnsRecordType, records: &[DnsRecord]) -> crate::Result<()> {
for r in records {
if r.as_type() != expected {
return Err(Error::Api(format!(
"RRSet record type mismatch: expected {}, got {}",
expected.as_str(),
r.as_type().as_str(),
)));
}
}
Ok(())
}
fn reject_tlsa(record_type: DnsRecordType) -> crate::Result<()> {
if matches!(record_type, DnsRecordType::TLSA) {
Err(Error::Unsupported(
"TLSA records are not supported by Joker.com".to_string(),
))
} else {
Ok(())
}
}
fn render_zone_entries(host: &str, record: &DnsRecord, ttl: u32) -> crate::Result<Vec<String>> {
let (label, priority, values) = match record {
DnsRecord::A(addr) => ("A", 0u16, vec![addr.to_string()]),
DnsRecord::AAAA(addr) => ("AAAA", 0, vec![addr.to_string()]),
DnsRecord::CNAME(content) => ("CNAME", 0, vec![ensure_dot(content)]),
DnsRecord::NS(content) => ("NS", 0, vec![ensure_dot(content)]),
DnsRecord::MX(mx) => ("MX", mx.priority, vec![ensure_dot(&mx.exchange)]),
DnsRecord::TXT(content) => {
let mut quoted = String::new();
txt_chunks_to_text(&mut quoted, content, " ");
("TXT", 0, vec![quoted])
}
DnsRecord::SRV(srv) => (
"SRV",
srv.priority,
vec![format!(
"{} {} {}",
srv.weight,
srv.port,
ensure_dot(&srv.target)
)],
),
DnsRecord::TLSA(_) => {
return Err(Error::Unsupported(
"TLSA records are not supported by Joker.com".to_string(),
));
}
DnsRecord::CAA(caa) => {
let (flags, tag, value) = caa.clone().decompose();
("CAA", 0, vec![format!("{flags} {tag} \"{value}\"")])
}
};
Ok(values
.into_iter()
.map(|value| format!("{host} {label} {priority} {value} {ttl}"))
.collect())
}
fn ensure_dot(value: &str) -> String {
if value.ends_with('.') {
value.to_string()
} else {
format!("{value}.")
}
}
fn append_lines(zone: &mut String, lines: &[String]) {
if lines.is_empty() {
return;
}
if !zone.is_empty() && !zone.ends_with('\n') {
zone.push('\n');
}
for line in lines {
zone.push_str(line);
zone.push('\n');
}
while zone.ends_with("\n\n") {
zone.pop();
}
}
fn filter_lines<F>(zone: &str, mut keep: F) -> String
where
F: FnMut(&str) -> bool,
{
let mut out = String::new();
for line in zone.lines() {
if keep(line) {
out.push_str(line);
out.push('\n');
}
}
out.trim_end().to_string()
}
fn line_matches_name_and_type(line: &str, host: &str, record_type: DnsRecordType) -> bool {
let trimmed = line.trim_start();
let prefix = format!("{} {}", host, record_type.as_str());
if !trimmed.starts_with(&prefix) {
return false;
}
let rest = &trimmed[prefix.len()..];
rest.starts_with([' ', '\t'])
}
fn remove_entries(zone: &str, host: &str, record_type: DnsRecordType) -> String {
filter_lines(zone, |line| {
!line_matches_name_and_type(line, host, record_type)
})
}
fn collect_rdata(zone: &str, host: &str, record_type: DnsRecordType) -> Vec<String> {
let mut out = Vec::new();
for line in zone.lines() {
if line_matches_name_and_type(line, host, record_type) {
out.push(extract_rdata(line, host, record_type));
}
}
out
}
fn extract_rdata(line: &str, host: &str, record_type: DnsRecordType) -> String {
let trimmed = line.trim();
let fields = tokenize_zone_line(trimmed);
if fields.len() < 5 {
return String::new();
}
let label_matches = fields[0] == host;
let type_matches = fields[1].eq_ignore_ascii_case(record_type.as_str());
if !label_matches || !type_matches {
return String::new();
}
let priority = &fields[2];
let value_tokens: &[String] = match record_type {
DnsRecordType::MX | DnsRecordType::SRV => &fields[3..fields.len().saturating_sub(1)],
_ => &fields[3..fields.len().saturating_sub(1)],
};
let value = value_tokens.join(" ");
format!("{priority} {value}")
}
fn rdata_equivalent(a: &str, b: &str) -> bool {
a == b
}
fn tokenize_zone_line(line: &str) -> Vec<String> {
let mut out = Vec::new();
let mut current = String::new();
let mut in_quotes = false;
let mut escaped = false;
for ch in line.chars() {
if escaped {
current.push(ch);
escaped = false;
continue;
}
match ch {
'\\' if in_quotes => {
current.push(ch);
escaped = true;
}
'"' => {
in_quotes = !in_quotes;
current.push(ch);
}
c if c.is_whitespace() && !in_quotes => {
if !current.is_empty() {
out.push(std::mem::take(&mut current));
}
}
_ => current.push(ch),
}
}
if !current.is_empty() {
out.push(current);
}
out
}
fn parse_zone_record(
record_type: DnsRecordType,
fields: &[String],
) -> crate::Result<Option<DnsRecord>> {
if fields.len() < 5 {
return Ok(None);
}
let priority_str = &fields[2];
let trailing_meta = fields.len().saturating_sub(1);
let value_tokens = &fields[3..trailing_meta];
if value_tokens.is_empty() {
return Ok(None);
}
Ok(Some(match record_type {
DnsRecordType::A => {
let addr = value_tokens[0]
.parse()
.map_err(|err| Error::Parse(format!("invalid A address: {err}")))?;
DnsRecord::A(addr)
}
DnsRecordType::AAAA => {
let addr = value_tokens[0]
.parse()
.map_err(|err| Error::Parse(format!("invalid AAAA address: {err}")))?;
DnsRecord::AAAA(addr)
}
DnsRecordType::CNAME => DnsRecord::CNAME(strip_trailing_dot(&value_tokens[0])),
DnsRecordType::NS => DnsRecord::NS(strip_trailing_dot(&value_tokens[0])),
DnsRecordType::MX => {
let priority: u16 = priority_str
.parse()
.map_err(|err| Error::Parse(format!("invalid MX priority: {err}")))?;
DnsRecord::MX(MXRecord {
priority,
exchange: strip_trailing_dot(&value_tokens[0]),
})
}
DnsRecordType::TXT => DnsRecord::TXT(unquote_txt_tokens(value_tokens)),
DnsRecordType::SRV => {
if value_tokens.len() < 3 {
return Err(Error::Parse(
"SRV record requires weight port target".to_string(),
));
}
let priority: u16 = priority_str
.parse()
.map_err(|err| Error::Parse(format!("invalid SRV priority: {err}")))?;
let weight: u16 = value_tokens[0]
.parse()
.map_err(|err| Error::Parse(format!("invalid SRV weight: {err}")))?;
let port: u16 = value_tokens[1]
.parse()
.map_err(|err| Error::Parse(format!("invalid SRV port: {err}")))?;
DnsRecord::SRV(SRVRecord {
priority,
weight,
port,
target: strip_trailing_dot(&value_tokens[2]),
})
}
DnsRecordType::CAA => {
if value_tokens.len() < 3 {
return Err(Error::Parse(
"CAA record requires flags tag value".to_string(),
));
}
let flags: u8 = value_tokens[0]
.parse()
.map_err(|err| Error::Parse(format!("invalid CAA flags: {err}")))?;
let tag = value_tokens[1].clone();
let raw_value = value_tokens[2..].join(" ");
let value = strip_quotes(&raw_value);
DnsRecord::CAA(build_caa(flags, &tag, &value)?)
}
DnsRecordType::TLSA => {
return Err(Error::Unsupported(
"TLSA records are not supported by Joker.com".to_string(),
));
}
}))
}
fn strip_trailing_dot(value: &str) -> String {
value.strip_suffix('.').unwrap_or(value).to_string()
}
fn strip_quotes(value: &str) -> String {
let trimmed = value.trim();
trimmed
.strip_prefix('"')
.and_then(|s| s.strip_suffix('"'))
.map(|s| s.replace("\\\"", "\"").replace("\\\\", "\\"))
.unwrap_or_else(|| trimmed.to_string())
}
fn unquote_txt_tokens(tokens: &[String]) -> String {
let mut out = String::new();
for token in tokens {
out.push_str(&strip_quotes(token));
}
out
}
fn build_caa(flags: u8, tag: &str, value: &str) -> crate::Result<CAARecord> {
let issuer_critical = flags & 0x80 != 0;
match tag {
"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.to_string(),
}),
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)
}