Files
SolarEnergy/central_backend/src/server/web_api/management_controller.rs
Pierre HUBERT bb0226577d
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Can download a copy of storage
2024-11-19 20:40:49 +01:00

67 lines
2.2 KiB
Rust

use crate::app_config::AppConfig;
use crate::server::custom_error::HttpResult;
use crate::utils::time_utils::current_day;
use actix_web::HttpResponse;
use anyhow::Context;
use std::fs::File;
use std::io::{Cursor, Read, Write};
use walkdir::WalkDir;
use zip::write::SimpleFileOptions;
/// Download a full copy of the storage data
pub async fn download_storage() -> HttpResult {
let mut zip_buff = Cursor::new(Vec::new());
let mut zip = zip::ZipWriter::new(&mut zip_buff);
let options = SimpleFileOptions::default()
.compression_method(zip::CompressionMethod::Bzip2)
.unix_permissions(0o700);
let storage = AppConfig::get().storage_path();
let mut file_buff = Vec::new();
for entry in WalkDir::new(&storage) {
let entry = entry?;
let path = entry.path();
let name = path.strip_prefix(&storage).unwrap();
let path_as_string = name
.to_str()
.map(str::to_owned)
.with_context(|| format!("{name:?} Is a Non UTF-8 Path"))?;
// Write file or directory explicitly
// Some unzip tools unzip files with directory paths correctly, some do not!
if path.is_file() {
log::debug!("adding file {path:?} as {name:?} ...");
zip.start_file(path_as_string, options)?;
let mut f = File::open(path)?;
f.read_to_end(&mut file_buff)?;
zip.write_all(&file_buff)?;
file_buff.clear();
} else if !name.as_os_str().is_empty() {
// Only if not root! Avoids path spec / warning
// and mapname conversion failed error on unzip
log::debug!("adding dir {path_as_string:?} as {name:?} ...");
zip.add_directory(path_as_string, options)?;
}
}
// Inject runtime configuration
zip.start_file("/app_config.json", options)?;
zip.write_all(&serde_json::to_vec_pretty(&AppConfig::get())?)?;
zip.finish()?;
let filename = format!("storage-{}.zip", current_day());
Ok(HttpResponse::Ok()
.content_type("application/zip")
.insert_header((
"content-disposition",
format!("attachment; filename=\"{filename}\""),
))
.body(zip_buff.into_inner()))
}