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use crate::models::FileEntry;
use anyhow::Result;
use reqwest::Client;
use std::path::Path;
use tokio::{
fs::{self, File},
io::AsyncWriteExt,
};
/// Creates and writes container.xml.
pub async fn write_container_xml(dest_root: &Path, opf_full_path: &str) -> Result<()> {
// Create destination directory.
let dest_dir = dest_root.join("META-INF");
fs::create_dir_all(&dest_dir).await?;
// Create distination file.
let dest_path = dest_dir.join("container.xml");
let mut file = File::create(dest_path).await?;
// Prepare file contents.
let contents = format!(
r#"<?xml version="1.0" encoding="UTF-8"?>
<container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container">
<rootfiles>
<rootfile full-path="{opf_full_path}" media-type="application/oebps-package+xml"/>
</rootfiles>
</container>
"#
);
// Write down the file.
file.write_all(contents.as_bytes()).await?;
Ok(())
}
pub async fn download_all_files(
client: &Client,
file_entries: &[FileEntry],
dest_root: &Path,
) -> Result<()> {
for entry in file_entries {
let dest_path = dest_root.join(&entry.full_path);
if let Some(parent_dir) = dest_path.parent() {
fs::create_dir_all(parent_dir).await?;
}
let mut file = File::create(dest_path).await?;
let bytes = client
.get(&entry.url)
.send()
.await?
.error_for_status()?
.bytes()
.await?;
file.write_all(&bytes).await?;
}
Ok(())
}
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