You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
151 lines
4.4 KiB
151 lines
4.4 KiB
use std::env; |
|
use xml::{Event, Parser}; |
|
use std::fs::File; |
|
use std::io::prelude::*; |
|
use std::path::Path; |
|
use std::vec::Vec; |
|
use slug::slugify; |
|
use base64::decode; |
|
|
|
#[derive(Debug)] |
|
enum CurrentTag { |
|
Title, |
|
Content, |
|
Resource, |
|
ResourceData, |
|
ResourceAttributes, |
|
ResourceAttributesFilename |
|
} |
|
|
|
#[derive(Debug)] |
|
struct State { |
|
tag: Option<CurrentTag>, |
|
title: Option<String>, |
|
filename: Option<String>, |
|
data: Vec<u8> |
|
} |
|
|
|
impl State { |
|
pub fn new() -> Self { |
|
Self { tag: None, title: None, filename: None, data: Vec::new() } |
|
} |
|
|
|
pub fn with_title(self, title:String) -> Self { |
|
Self { title: Some(title.to_string()), |
|
..self } |
|
} |
|
|
|
pub fn with_filename(self, filename: String) -> Self { |
|
Self { filename: Some(filename), |
|
..self } |
|
} |
|
|
|
pub fn with_tag(self, tag:CurrentTag) -> Self { |
|
Self { tag: Some(tag), |
|
..self } |
|
} |
|
|
|
pub fn with_data(self, data:Vec<u8>) -> Self { |
|
Self { data: data, |
|
..self } |
|
} |
|
|
|
pub fn remove_tag(self) -> Self { |
|
Self { tag: None, |
|
..self } |
|
} |
|
|
|
pub fn remove_data(self) -> Self { |
|
Self { data: Vec::new(), |
|
..self } |
|
} |
|
} |
|
|
|
fn create_note_storage(title: &str) -> String { |
|
let slug = slugify(title); |
|
std::fs::create_dir_all(Path::new("data").join(slug.as_str())).unwrap(); |
|
slug |
|
} |
|
|
|
fn open_tag(current_state: State, tag: &str) -> State { |
|
match tag { |
|
"title" => current_state.with_tag(CurrentTag::Title), |
|
"data" => current_state.with_tag(CurrentTag::ResourceData), |
|
"content" => current_state.with_tag(CurrentTag::Content), |
|
"resource" => current_state.with_tag(CurrentTag::Resource), |
|
"resource-attributes" => current_state.with_tag(CurrentTag::ResourceAttributes), |
|
"file-name" => current_state.with_tag(CurrentTag::ResourceAttributesFilename), |
|
"note" => State::new(), |
|
_ => current_state |
|
} |
|
} |
|
|
|
fn dump_resource(current_state: &State) -> () { |
|
let unnamed = String::from("content"); |
|
let content_storage = Path::new("data") |
|
.join(current_state.title.as_ref().unwrap()) |
|
.join(current_state.filename.as_ref().unwrap_or(&unnamed)); |
|
let content = base64::decode(¤t_state.data).unwrap(); |
|
|
|
println!("Will save {:?}", content_storage); |
|
|
|
let mut target = File::create(content_storage).unwrap(); |
|
target.write_all(&content).unwrap(); |
|
} |
|
|
|
fn close_tag(current_state: State, tag: &str) -> State { |
|
match tag { |
|
"resource" => { |
|
dump_resource(¤t_state); |
|
current_state.remove_data() |
|
}, |
|
_ => current_state.remove_tag() |
|
} |
|
} |
|
|
|
fn main() { |
|
let args:Vec<_> = env::args().collect(); |
|
if args.len() != 2 { |
|
println!("Required: filename."); |
|
std::process::exit(2); |
|
} |
|
|
|
let filename = &args[1]; |
|
|
|
println!("Will process {}", filename); |
|
|
|
// Need to find a way to load small chunks and feed it to the parser while parsing. |
|
// (E.g., load 1024 bytes, feed it to the parser and, if the parser can't continue, |
|
// feed more data, till the end of file). |
|
let mut file = File::open(filename).unwrap(); |
|
let mut contents = String::new(); |
|
file.read_to_string(&mut contents).unwrap(); |
|
|
|
let mut parser = Parser::new(); |
|
parser.feed_str(&contents); |
|
|
|
parser.fold(State::new(), {|state:State, element| { |
|
println!("State: {:?}", state); |
|
|
|
match element.unwrap() { |
|
Event::ElementStart(tag) => open_tag(state, tag.name.as_ref()), |
|
Event::ElementEnd(tag) => close_tag(state, tag.name.as_ref()), |
|
Event::Characters(data) => { |
|
match state.tag { |
|
Some(CurrentTag::Title) => state.with_title(create_note_storage(&data)), |
|
Some(CurrentTag::ResourceData) => state.with_data( |
|
data |
|
.into_bytes() |
|
.iter() |
|
.filter(|&x| *x != 13 && *x != 10) // remove new lines, it is base 64, after all |
|
.map(|&x| x) |
|
.collect() |
|
), |
|
Some(CurrentTag::ResourceAttributesFilename) => state.with_filename(data), |
|
_ => state |
|
} |
|
}, |
|
_ => state |
|
} |
|
}}); |
|
}
|
|
|