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PbDbFixer
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Handle EPUB3 properly.

This commit is contained in:
Martin Brodbeck 2021-01-29 10:44:07 +01:00
parent 7a16eec5c6
commit c8efd75241
1 changed files with 40 additions and 5 deletions
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45
src/main.rs
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@ -2,7 +2,7 @@ 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 xml::reader::{EventReader, ParserConfig, XmlEvent};
use zip::{read::ZipFile, ZipArchive};
fn get_root_file(container: ZipFile) -> Result<Option<String>, Box<dyn Error>> {
@ -15,7 +15,6 @@ fn get_root_file(container: ZipFile) -> Result<Option<String>, Box<dyn Error>> {
}) 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));
}
}
@ -30,7 +29,15 @@ fn get_root_file(container: ZipFile) -> Result<Option<String>, Box<dyn Error>> {
}
fn get_attribute_file_as(opf: ZipFile) -> Option<String> {
let parser = EventReader::new(opf);
let parser = ParserConfig::new()
.trim_whitespace(true)
.ignore_comments(true)
.coalesce_characters(true)
.create_reader(opf);
let mut refines_found = false;
let mut is_epub3 = false;
let mut creator_id = String::new();
for e in parser {
match e {
@ -39,8 +46,8 @@ fn get_attribute_file_as(opf: ZipFile) -> Option<String> {
}) if name.local_name == "package" => {
for attr in attributes {
if attr.name.local_name == "version" {
if attr.value.starts_with("2") == false {
return None;
if attr.value.starts_with("3") == true {
is_epub3 = true;
}
}
}
@ -50,8 +57,36 @@ fn get_attribute_file_as(opf: ZipFile) -> Option<String> {
}) if name.local_name == "creator" => {
for attr in attributes {
if attr.name.local_name == "file-as" {
println!("File-as: {}", &attr.value);
return Some(attr.value);
}
if is_epub3 && attr.name.local_name == "id" {
creator_id = attr.value;
}
}
}
Ok(XmlEvent::StartElement {
name, attributes, ..
}) if name.local_name == "meta" => {
if attributes.iter().any(|attr| {
attr.name.local_name == "refines"
&& (attr.value == creator_id
|| attr.value == "#".to_owned() + creator_id.as_str())
}) && attributes
.iter()
.any(|attr| attr.name.local_name == "property" && attr.value == "file-as")
{
refines_found = true;
}
}
Ok(XmlEvent::Characters(value)) => {
if refines_found == true {
return Some(value);
}
}
Ok(XmlEvent::StartElement { .. }) => {
if refines_found == true {
refines_found = false;
}
}
Err(_e) => {