commit
c82071a871
6 changed files with 98 additions and 60 deletions
2
Cargo.lock
generated
2
Cargo.lock
generated
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@ -1242,7 +1242,7 @@ dependencies = [
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[[package]]
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name = "paperoni"
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version = "0.2.1-alpha1"
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version = "0.2.2-alpha1"
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dependencies = [
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"async-std",
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"clap",
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@ -3,7 +3,7 @@ description = "A web article downloader"
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homepage = "https://github.com/hipstermojo/paperoni"
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repository = "https://github.com/hipstermojo/paperoni"
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name = "paperoni"
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version = "0.2.1-alpha1"
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version = "0.2.2-alpha1"
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authors = ["Kenneth Gitere <gitere81@gmail.com>"]
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edition = "2018"
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license = "MIT"
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@ -21,4 +21,4 @@ lazy_static = "1.4.0"
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md5 = "0.7.0"
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regex = "1.4.2"
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surf = "2.1.0"
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url = "2.2.0"
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url = "2.2.0"
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@ -6,7 +6,7 @@ pub fn cli_init() -> App<'static, 'static> {
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AppSettings::ArgRequiredElseHelp,
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AppSettings::UnifiedHelpMessage,
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])
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.version("0.2.1-alpha1")
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.version("0.2.2-alpha1")
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.about(
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"
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Paperoni is an article downloader.
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@ -68,7 +68,9 @@ impl Extractor {
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pub async fn download_images(&mut self, article_origin: &Url) -> async_std::io::Result<()> {
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let mut async_download_tasks = Vec::with_capacity(self.img_urls.len());
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self.extract_img_urls();
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println!("Downloading images...");
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if self.img_urls.len() > 0 {
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println!("Downloading images...");
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}
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for img_url in &self.img_urls {
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let img_url = img_url.0.clone();
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let abs_url = get_absolute_url(&img_url, article_origin);
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@ -129,6 +131,9 @@ impl Extractor {
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.expect("Image node does not exist");
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let mut img_node = img_ref.attributes.borrow_mut();
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*img_node.get_mut("src").unwrap() = img_path.clone();
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// srcset is removed because readers such as Foliate then fail to display
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// the image already downloaded and stored in src
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img_node.remove("srcset");
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self.img_urls.push((img_path, img_mime));
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}
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Ok(())
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138
src/main.rs
138
src/main.rs
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@ -23,70 +23,106 @@ fn main() {
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type HTMLResource = (String, String);
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async fn fetch_url(url: &str) -> Result<HTMLResource, Box<dyn std::error::Error>> {
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async fn fetch_url(url: &str) -> Result<HTMLResource, Box<dyn std::error::Error + Send + Sync>> {
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let client = surf::Client::new();
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println!("Fetching...");
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let mut res = client
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.with(surf::middleware::Redirect::default())
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.get(url)
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.send()
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.await
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.expect(&format!("Unable to fetch {}", url));
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if res.status() == 200 {
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Ok((url.to_string(), res.body_string().await?))
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} else {
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Err("Request failed to return HTTP 200".into())
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let mut redirect_count: u8 = 0;
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let base_url = Url::parse(&url)?;
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let mut url = base_url.clone();
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while redirect_count < 5 {
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redirect_count += 1;
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let req = surf::get(&url);
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let mut res = client.send(req).await?;
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if res.status().is_redirection() {
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if let Some(location) = res.header(surf::http::headers::LOCATION) {
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match Url::parse(location.last().as_str()) {
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Ok(valid_url) => url = valid_url,
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Err(e) => match e {
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url::ParseError::RelativeUrlWithoutBase => {
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url = base_url.join(location.last().as_str())?
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}
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e => return Err(e.into()),
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},
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};
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}
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} else if res.status().is_success() {
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if let Some(mime) = res.content_type() {
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if mime.essence() == "text/html" {
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return Ok((url.to_string(), res.body_string().await?));
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} else {
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return Err(format!(
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"Invalid HTTP response. Received {} instead of text/html",
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mime.essence()
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)
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.into());
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}
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} else {
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return Err("Unknown HTTP response".into());
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}
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} else {
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return Err(format!("Request failed: HTTP {}", res.status()).into());
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}
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}
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Err("Unable to fetch HTML".into())
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}
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fn download(urls: Vec<String>) {
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let mut async_url_tasks = Vec::with_capacity(urls.len());
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for url in urls {
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async_url_tasks.push(task::spawn(async move { fetch_url(&url).await.unwrap() }));
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async_url_tasks.push(task::spawn(async move { fetch_url(&url).await }));
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}
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task::block_on(async {
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for url_task in async_url_tasks {
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let (url, html) = url_task.await;
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println!("Extracting");
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let mut extractor = Extractor::from_html(&html);
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extractor.extract_content(&url);
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if extractor.article().is_some() {
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extractor
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.download_images(&Url::parse(&url).unwrap())
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.await
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.expect("Unable to download images");
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let file_name = format!(
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"{}.epub",
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extractor
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.metadata()
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.title()
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.replace("/", " ")
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.replace("\\", " ")
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);
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let mut out_file = File::create(&file_name).unwrap();
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let mut html_buf = Vec::new();
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extractor::serialize_to_xhtml(extractor.article().unwrap(), &mut html_buf)
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.expect("Unable to serialize to xhtml");
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let html_buf = std::str::from_utf8(&html_buf).unwrap();
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let mut epub = EpubBuilder::new(ZipLibrary::new().unwrap()).unwrap();
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if let Some(author) = extractor.metadata().byline() {
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epub.metadata("author", author.replace("&", "&"))
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.unwrap();
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}
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epub.metadata("title", extractor.metadata().title().replace("&", "&"))
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.unwrap();
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epub.add_content(EpubContent::new("index.xhtml", html_buf.as_bytes()))
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.unwrap();
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for img in extractor.img_urls {
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let mut file_path = std::env::temp_dir();
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file_path.push(&img.0);
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match url_task.await {
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Ok((url, html)) => {
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println!("Extracting");
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let mut extractor = Extractor::from_html(&html);
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extractor.extract_content(&url);
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if extractor.article().is_some() {
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extractor
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.download_images(&Url::parse(&url).unwrap())
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.await
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.expect("Unable to download images");
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let file_name = format!(
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"{}.epub",
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extractor
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.metadata()
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.title()
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.replace("/", " ")
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.replace("\\", " ")
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);
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let mut out_file = File::create(&file_name).unwrap();
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let mut html_buf = Vec::new();
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extractor::serialize_to_xhtml(extractor.article().unwrap(), &mut html_buf)
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.expect("Unable to serialize to xhtml");
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let html_buf = std::str::from_utf8(&html_buf).unwrap();
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let mut epub = EpubBuilder::new(ZipLibrary::new().unwrap()).unwrap();
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if let Some(author) = extractor.metadata().byline() {
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epub.metadata("author", author.replace("&", "&"))
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.unwrap();
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}
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epub.metadata("title", extractor.metadata().title().replace("&", "&"))
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.unwrap();
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epub.add_content(EpubContent::new("index.xhtml", html_buf.as_bytes()))
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.unwrap();
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for img in extractor.img_urls {
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let mut file_path = std::env::temp_dir();
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file_path.push(&img.0);
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let img_buf = File::open(&file_path).expect("Can't read file");
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epub.add_resource(file_path.file_name().unwrap(), img_buf, img.1.unwrap())
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.unwrap();
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let img_buf = File::open(&file_path).expect("Can't read file");
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epub.add_resource(
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file_path.file_name().unwrap(),
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img_buf,
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img.1.unwrap(),
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)
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.unwrap();
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}
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epub.generate(&mut out_file).unwrap();
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println!("Created {:?}", file_name);
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}
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}
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epub.generate(&mut out_file).unwrap();
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println!("Created {:?}", file_name);
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Err(e) => println!("{}", e),
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}
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}
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})
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@ -193,10 +193,7 @@ impl Readability {
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.borrow_mut()
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.insert(attr_name, prev_value.value.clone());
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}
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// WARN: This assumes `next_element` returns an element node!!
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let inner_node_child =
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Self::next_element(inner_node_ref.first_child(), true);
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prev_elem.insert_after(inner_node_child.unwrap());
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prev_elem.insert_after(new_img.as_node().clone());
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prev_elem.detach();
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}
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}
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