feat: add IPTV export functionality with M3U and XMLTV generation, including UI components for export dialog

k-tv-backend/api/src/routes/iptv.rs

@@ -0,0 +1,118 @@
+//! IPTV export routes
+//!
+//! Generates M3U playlists and XMLTV guides for use with standard IPTV clients.
+//! Auth is provided via `?token=<jwt>` query param so URLs can be pasted
+//! directly into TiviMate, VLC, etc.
+
+use std::collections::HashMap;
+
+use axum::{
+    Router,
+    extract::{Query, State},
+    http::{HeaderValue, StatusCode, header},
+    response::{IntoResponse, Response},
+    routing::get,
+};
+use chrono::Utc;
+use serde::Deserialize;
+
+use crate::{error::ApiError, state::AppState};
+
+#[cfg(feature = "auth-jwt")]
+use crate::extractors::validate_jwt_token;
+
+pub fn router() -> Router<AppState> {
+    Router::new()
+        .route("/playlist.m3u", get(get_playlist))
+        .route("/epg.xml", get(get_epg))
+}
+
+#[derive(Debug, Deserialize)]
+struct TokenQuery {
+    token: Option<String>,
+}
+
+/// `GET /api/v1/iptv/playlist.m3u?token={jwt}`
+///
+/// Returns an M3U playlist with one entry per channel the authenticated user owns.
+async fn get_playlist(
+    State(state): State<AppState>,
+    Query(params): Query<TokenQuery>,
+) -> Result<Response, ApiError> {
+    let token = params
+        .token
+        .as_deref()
+        .unwrap_or("")
+        .to_owned();
+
+    let user = authenticate_query_token(&token, &state).await?;
+
+    let channels = state.channel_service.find_by_owner(user.id).await?;
+    let body = domain::generate_m3u(&channels, &state.config.base_url, &token);
+
+    Ok((
+        StatusCode::OK,
+        [(header::CONTENT_TYPE, HeaderValue::from_static("audio/x-mpegurl"))],
+        body,
+    )
+        .into_response())
+}
+
+/// `GET /api/v1/iptv/epg.xml?token={jwt}`
+///
+/// Returns an XMLTV document covering the active schedule for all channels
+/// owned by the authenticated user.
+async fn get_epg(
+    State(state): State<AppState>,
+    Query(params): Query<TokenQuery>,
+) -> Result<Response, ApiError> {
+    let token = params.token.as_deref().unwrap_or("").to_owned();
+    let user = authenticate_query_token(&token, &state).await?;
+
+    let channels = state.channel_service.find_by_owner(user.id).await?;
+
+    let now = Utc::now();
+    let mut slots_by_channel = HashMap::new();
+    for ch in &channels {
+        if let Ok(Some(schedule)) = state.schedule_engine.get_active_schedule(ch.id, now).await {
+            slots_by_channel.insert(ch.id, schedule.slots);
+        }
+    }
+
+    let body = domain::generate_xmltv(&channels, &slots_by_channel);
+
+    Ok((
+        StatusCode::OK,
+        [(
+            header::CONTENT_TYPE,
+            HeaderValue::from_static("application/xml; charset=utf-8"),
+        )],
+        body,
+    )
+        .into_response())
+}
+
+/// Validate a JWT from the `?token=` query param and return the user.
+async fn authenticate_query_token(
+    token: &str,
+    state: &AppState,
+) -> Result<domain::User, ApiError> {
+    if token.is_empty() {
+        return Err(ApiError::Unauthorized(
+            "Missing ?token= query parameter".to_string(),
+        ));
+    }
+
+    #[cfg(feature = "auth-jwt")]
+    {
+        return validate_jwt_token(token, state).await;
+    }
+
+    #[cfg(not(feature = "auth-jwt"))]
+    {
+        let _ = (token, state);
+        Err(ApiError::Unauthorized(
+            "No authentication backend configured".to_string(),
+        ))
+    }
+}