Initial commit.

This commit is contained in:
Martin Brodbeck 2021-01-28 17:52:09 +01:00
commit 7a16eec5c6
4 changed files with 446 additions and 0 deletions

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/target

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authors = ["Martin Brodbeck <martin@brodbeck-online.de>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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use rusqlite::{named_params, Connection, Result, NO_PARAMS};
use std::error::Error;
use std::fs::File;
use std::io::BufReader;
use xml::reader::{EventReader, XmlEvent};
use zip::{read::ZipFile, ZipArchive};
fn get_root_file(container: ZipFile) -> Result<Option<String>, Box<dyn Error>> {
let parser = EventReader::new(container);
for e in parser {
match e {
Ok(XmlEvent::StartElement {
name, attributes, ..
}) if name.local_name == "rootfile" => {
for attr in attributes {
if attr.name.local_name == "full-path" {
//opf_file = attr.value;
return Ok(Some(attr.value));
}
}
}
Err(e) => {
return Err(Box::new(e));
}
_ => {}
}
}
Ok(None)
}
fn get_attribute_file_as(opf: ZipFile) -> Option<String> {
let parser = EventReader::new(opf);
for e in parser {
match e {
Ok(XmlEvent::StartElement {
name, attributes, ..
}) if name.local_name == "package" => {
for attr in attributes {
if attr.name.local_name == "version" {
if attr.value.starts_with("2") == false {
return None;
}
}
}
}
Ok(XmlEvent::StartElement {
name, attributes, ..
}) if name.local_name == "creator" => {
for attr in attributes {
if attr.name.local_name == "file-as" {
return Some(attr.value);
}
}
}
Err(_e) => {
break;
}
_ => {}
}
}
None
}
struct BookEntry {
id: i32,
filepath: String,
}
fn main() {
let mut conn = Connection::open("/mnt/ext1/system/explorer-3/explorer-3.db").unwrap();
let tx = conn.transaction().unwrap();
{
let mut stmt = tx.prepare("SELECT id FROM books_impl WHERE ext LIKE 'epub' AND author LIKE '% %' AND firstauthor NOT LIKE '%\\,%' ESCAPE '\\'").unwrap();
let mut rows = stmt.query(NO_PARAMS).unwrap();
let mut book_ids: Vec<i32> = Vec::new();
while let Some(row) = rows.next().unwrap() {
book_ids.push(row.get(0).unwrap());
}
let mut bookentries = Vec::new();
for book_id in book_ids {
let mut stmt = tx.prepare("SELECT folders.name,files.filename FROM files,folders WHERE files.book_id = :book_id AND files.storageid = 1 AND files.folder_id = folders.id").unwrap();
let mut rows = stmt
.query_named(named_params! { ":book_id": book_id })
.unwrap();
while let Some(row) = rows.next().unwrap() {
let prefix: String = row.get(0).unwrap();
let filename: String = row.get(1).unwrap();
let filepath = format!("{}/{}", prefix, filename);
bookentries.push(BookEntry {
id: book_id,
filepath: filepath,
});
}
}
//println!("Number of entries found: {}", bookentries.len());
for entry in bookentries {
let file = File::open(entry.filepath.as_str());
let file = match file {
Err(_) => continue,
Ok(file) => file,
};
let mut archive = ZipArchive::new(BufReader::new(file)).unwrap();
let container = archive.by_name("META-INF/container.xml").unwrap();
if let Some(opf_file) = get_root_file(container).unwrap() {
let opf = archive.by_name(opf_file.as_str()).unwrap();
if let Some(file_as) = get_attribute_file_as(opf) {
let mut stmt = tx
.prepare("UPDATE books_impl SET firstauthor = :file_as WHERE id = :book_id")
.unwrap();
stmt.execute_named(named_params![":file_as": file_as, ":book_id": entry.id])
.unwrap();
}
}
}
}
tx.commit().unwrap();
}