Files
EventSnap/backend/src/handlers/admin.rs
2026-04-02 20:56:21 +02:00

280 lines
9.1 KiB
Rust

use axum::extract::State;
use axum::http::StatusCode;
use axum::Json;
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use sysinfo::System;
use crate::auth::middleware::RequireAdmin;
use crate::error::AppError;
use crate::state::AppState;
// ── DTOs ─────────────────────────────────────────────────────────────────────
#[derive(Serialize)]
pub struct StatsDto {
pub user_count: i64,
pub upload_count: i64,
pub comment_count: i64,
pub disk_total_bytes: u64,
pub disk_used_bytes: u64,
pub disk_free_bytes: u64,
}
#[derive(Serialize, sqlx::FromRow)]
pub struct ExportJobDto {
pub id: uuid::Uuid,
pub r#type: String,
pub status: String,
pub progress_pct: i16,
pub error_message: Option<String>,
pub created_at: chrono::DateTime<chrono::Utc>,
pub completed_at: Option<chrono::DateTime<chrono::Utc>>,
}
// ── Handlers ─────────────────────────────────────────────────────────────────
pub async fn get_stats(
State(state): State<AppState>,
RequireAdmin(_auth): RequireAdmin,
) -> Result<Json<StatsDto>, AppError> {
let event = crate::models::event::Event::find_by_slug(&state.pool, &state.config.event_slug)
.await?
.ok_or_else(|| AppError::NotFound("Event nicht gefunden.".into()))?;
let (user_count,): (i64,) =
sqlx::query_as("SELECT COUNT(*) FROM \"user\" WHERE event_id = $1")
.bind(event.id)
.fetch_one(&state.pool)
.await?;
let (upload_count,): (i64,) = sqlx::query_as(
"SELECT COUNT(*) FROM upload WHERE event_id = $1 AND deleted_at IS NULL",
)
.bind(event.id)
.fetch_one(&state.pool)
.await?;
let (comment_count,): (i64,) = sqlx::query_as(
"SELECT COUNT(*) FROM comment c
JOIN upload u ON u.id = c.upload_id
WHERE u.event_id = $1 AND c.deleted_at IS NULL",
)
.bind(event.id)
.fetch_one(&state.pool)
.await?;
// Disk usage via sysinfo
let mut sys = System::new();
sys.refresh_all();
let media_path = state.config.media_path.to_string_lossy().to_string();
let (disk_total, disk_free) = sysinfo::Disks::new_with_refreshed_list()
.iter()
.find(|d| media_path.starts_with(d.mount_point().to_string_lossy().as_ref()))
.map(|d| (d.total_space(), d.available_space()))
.unwrap_or_else(|| {
// Fall back to the root disk
sysinfo::Disks::new_with_refreshed_list()
.iter()
.find(|d| d.mount_point().to_string_lossy() == "/")
.map(|d| (d.total_space(), d.available_space()))
.unwrap_or((0, 0))
});
let disk_used = disk_total.saturating_sub(disk_free);
Ok(Json(StatsDto {
user_count,
upload_count,
comment_count,
disk_total_bytes: disk_total,
disk_used_bytes: disk_used,
disk_free_bytes: disk_free,
}))
}
pub async fn get_config(
State(state): State<AppState>,
RequireAdmin(_auth): RequireAdmin,
) -> Result<Json<HashMap<String, String>>, AppError> {
let rows: Vec<(String, String)> =
sqlx::query_as("SELECT key, value FROM config ORDER BY key")
.fetch_all(&state.pool)
.await?;
Ok(Json(rows.into_iter().collect()))
}
#[derive(Deserialize)]
pub struct PatchConfigRequest(pub HashMap<String, String>);
pub async fn patch_config(
State(state): State<AppState>,
RequireAdmin(_auth): RequireAdmin,
Json(body): Json<HashMap<String, String>>,
) -> Result<StatusCode, AppError> {
const ALLOWED_KEYS: &[&str] = &[
"max_image_size_mb",
"max_video_size_mb",
"upload_rate_per_hour",
"feed_rate_per_min",
"export_rate_per_day",
"quota_tolerance",
"estimated_guest_count",
"compression_concurrency",
];
for (key, value) in &body {
if !ALLOWED_KEYS.contains(&key.as_str()) {
return Err(AppError::BadRequest(format!("Unbekannter Konfigurationsschlüssel: {key}")));
}
// Validate numeric values
if value.parse::<f64>().is_err() {
return Err(AppError::BadRequest(format!("Ungültiger Wert für {key}: muss eine Zahl sein.")));
}
sqlx::query(
"INSERT INTO config (key, value, updated_at) VALUES ($1, $2, NOW())
ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value, updated_at = NOW()",
)
.bind(key)
.bind(value)
.execute(&state.pool)
.await?;
}
Ok(StatusCode::NO_CONTENT)
}
pub async fn get_export_jobs(
State(state): State<AppState>,
RequireAdmin(_auth): RequireAdmin,
) -> Result<Json<Vec<ExportJobDto>>, AppError> {
let event = crate::models::event::Event::find_by_slug(&state.pool, &state.config.event_slug)
.await?
.ok_or_else(|| AppError::NotFound("Event nicht gefunden.".into()))?;
let jobs = sqlx::query_as::<_, ExportJobDto>(
"SELECT id, type::text, status::text, progress_pct, error_message, created_at, completed_at
FROM export_job
WHERE event_id = $1
ORDER BY created_at DESC",
)
.bind(event.id)
.fetch_all(&state.pool)
.await?;
Ok(Json(jobs))
}
// ── Export download endpoints (authenticated guests) ─────────────────────────
pub async fn download_zip(
State(state): State<AppState>,
_auth: crate::auth::middleware::AuthUser,
) -> Result<axum::response::Response, AppError> {
let event = crate::models::event::Event::find_by_slug(&state.pool, &state.config.event_slug)
.await?
.ok_or_else(|| AppError::NotFound("Event nicht gefunden.".into()))?;
if !event.export_zip_ready {
return Err(AppError::NotFound(
"Der ZIP-Export ist noch nicht verfügbar.".into(),
));
}
let path = state.config.media_path.join("exports").join("Gallery.zip");
if !path.exists() {
return Err(AppError::NotFound("Exportdatei nicht gefunden.".into()));
}
serve_file(path, "Gallery.zip", "application/zip").await
}
pub async fn download_html(
State(state): State<AppState>,
_auth: crate::auth::middleware::AuthUser,
) -> Result<axum::response::Response, AppError> {
let event = crate::models::event::Event::find_by_slug(&state.pool, &state.config.event_slug)
.await?
.ok_or_else(|| AppError::NotFound("Event nicht gefunden.".into()))?;
if !event.export_html_ready {
return Err(AppError::NotFound(
"Der HTML-Export ist noch nicht verfügbar.".into(),
));
}
let path = state.config.media_path.join("exports").join("Memories.zip");
if !path.exists() {
return Err(AppError::NotFound("Exportdatei nicht gefunden.".into()));
}
serve_file(path, "Memories.zip", "application/zip").await
}
async fn serve_file(
path: std::path::PathBuf,
filename: &str,
content_type: &str,
) -> Result<axum::response::Response, AppError> {
use axum::body::Body;
use axum::http::{header, Response, StatusCode};
use tokio_util::io::ReaderStream;
let file = tokio::fs::File::open(&path)
.await
.map_err(|e| AppError::Internal(e.into()))?;
let metadata = file
.metadata()
.await
.map_err(|e| AppError::Internal(e.into()))?;
let stream = ReaderStream::new(file);
let disposition = format!("attachment; filename=\"{filename}\"");
let response = Response::builder()
.status(StatusCode::OK)
.header(header::CONTENT_TYPE, content_type)
.header(header::CONTENT_DISPOSITION, disposition)
.header(header::CONTENT_LENGTH, metadata.len())
.body(Body::from_stream(stream))
.map_err(|e| AppError::Internal(e.into()))?;
Ok(response)
}
/// Also expose export status to all authenticated users (guests need it for the export page)
pub async fn export_status(
State(state): State<AppState>,
_auth: crate::auth::middleware::AuthUser,
) -> Result<Json<serde_json::Value>, AppError> {
let event = crate::models::event::Event::find_by_slug(&state.pool, &state.config.event_slug)
.await?
.ok_or_else(|| AppError::NotFound("Event nicht gefunden.".into()))?;
let released = event.export_released_at.is_some();
let jobs: Vec<(String, String, i16)> = sqlx::query_as(
"SELECT type::text, status::text, progress_pct FROM export_job WHERE event_id = $1",
)
.bind(event.id)
.fetch_all(&state.pool)
.await?;
let job_status = |type_name: &str| {
jobs.iter()
.find(|(t, _, _)| t == type_name)
.map(|(_, status, pct)| {
serde_json::json!({ "status": status, "progress_pct": pct })
})
.unwrap_or_else(|| serde_json::json!({ "status": "locked", "progress_pct": 0 }))
};
Ok(Json(serde_json::json!({
"released": released,
"zip": job_status("zip"),
"html": job_status("html"),
})))
}