feat: add fetch_html_from_puppeteer fn

Cargo.lock

@@ -1573,6 +1573,7 @@ dependencies = [
  "log 0.4.14",
  "md5",
  "regex",
+ "serde",
  "surf",
  "thiserror",
  "url",
@@ -2020,18 +2021,18 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
 [[package]]
 name = "serde"
-version = "1.0.125"
+version = "1.0.130"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "558dc50e1a5a5fa7112ca2ce4effcb321b0300c0d4ccf0776a9f60cd89031171"
+checksum = "f12d06de37cf59146fbdecab66aa99f9fe4f78722e3607577a5375d66bd0c913"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.125"
+version = "1.0.130"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b093b7a2bb58203b5da3056c05b4ec1fed827dcfdb37347a8841695263b3d06d"
+checksum = "d7bc1a1ab1961464eae040d96713baa5a724a8152c1222492465b54322ec508b"
 dependencies = [
  "proc-macro2",
  "quote",

Cargo.toml

@@ -32,6 +32,7 @@ lazy_static = "1.4.0"
 log = "0.4.14"
 md5 = "0.7.0"
 regex = "1.5.4"
+serde = "1.0.130"
 surf = "2.2.0"
 thiserror = "1.0.25"
 url = "2.2.2"

src/http.rs

@@ -5,6 +5,7 @@ use futures::StreamExt;
 use indicatif::ProgressBar;
 use log::warn;
 use log::{debug, info};
+use serde::{Deserialize, Serialize};
 use url::Url;
 
 use crate::cli::AppConfig;
@@ -22,9 +23,54 @@ pub fn download(
         let urls_iter = app_config.urls.iter().map(|url| fetch_html(url));
         let mut responses = stream::from_iter(urls_iter).buffered(app_config.max_conn);
         let mut articles = Vec::new();
+        // Collect all urls that couldn't extract here
+        let mut retry_with_paperteer: Vec<String> = Vec::new();
         while let Some(fetch_result) = responses.next().await {
             match fetch_result {
                 Ok((url, html)) => {
+                    match extract_and_download_imgs(
+                        &url,
+                        html,
+                        bar,
+                        partial_downloads,
+                        &mut articles,
+                    )
+                    .await
+                    {
+                        Ok(_) => bar.inc(1),
+
+                        // All errors are pushed into here since they're readability issues.
+                        Err(_) => retry_with_paperteer.push(url),
+                    }
+
+                    // Outside the stream, make a new one to retry with paperteer
+                }
+                Err(e) => errors.push(e),
+            }
+        }
+        if !retry_with_paperteer.is_empty() {
+            fetch_html_from_paperteer(
+                retry_with_paperteer,
+                app_config,
+                bar,
+                partial_downloads,
+                errors,
+                &mut articles,
+            )
+            .await
+            .unwrap();
+        }
+        articles
+    })
+}
+
+async fn extract_and_download_imgs<'a>(
+    url: &str,
+    html: String,
+    bar: &ProgressBar,
+    partial_downloads: &mut Vec<PartialDownload>,
+    articles: &mut Vec<Article>,
+) -> Result<(), PaperoniError> {
     debug!("Extracting {}", &url);
     let mut extractor = Article::from_html(&html, &url);
     bar.set_message("Extracting...");
@@ -32,16 +78,14 @@ pub fn download(
         Ok(_) => {
             extractor.extract_img_urls();
             if let Err(img_errors) =
-                                download_images(&mut extractor, &Url::parse(&url).unwrap(), &bar)
-                                    .await
+                download_images(&mut extractor, &Url::parse(&url).unwrap(), &bar).await
             {
-                                partial_downloads
-                                    .push(PartialDownload::new(&url, extractor.metadata().title()));
+                partial_downloads.push(PartialDownload::new(&url, extractor.metadata().title()));
                 warn!(
                     "{} image{} failed to download for {}",
                     img_errors.len(),
                     if img_errors.len() > 1 { "s" } else { "" },
-                                    url
+                    &url
                 );
                 for img_error in img_errors {
                     warn!(
@@ -52,19 +96,87 @@ pub fn download(
                 }
             }
             articles.push(extractor);
+            Ok(())
         }
         Err(mut e) => {
             e.set_article_source(&url);
-                            errors.push(e);
+            Err(e)
         }
     }
+}
+
+#[derive(Serialize, Deserialize)]
+struct PaperteerBody {
+    urls: Vec<String>,
+}
+
+impl PaperteerBody {
+    fn new(urls: Vec<String>) -> Self {
+        PaperteerBody { urls }
     }
+}
+
+#[derive(Serialize, Deserialize)]
+struct PaperteerItem {
+    url: String,
+    response: String,
+    html: String,
+}
+
+#[derive(Serialize, Deserialize)]
+struct PaperteerResponse {
+    data: Vec<PaperteerItem>,
+}
+
+// TODO: Change signature to simply take a vec of urls and return a vec of urls with either html or an error
+// This also means that extracting and downloading imgs should be handled externally
+async fn fetch_html_from_paperteer(
+    urls: Vec<String>,
+    app_config: &AppConfig,
+    bar: &ProgressBar,
+    partial_downloads: &mut Vec<PartialDownload>,
+    errors: &mut Vec<PaperoniError>,
+    articles: &mut Vec<Article>,
+) -> Result<(), ()> {
+    // Get the paperteer url
+    let render_endpoint = "/api/render";
+    let paperteer_url = url::Url::parse("http://localhost:3000")
+        .unwrap()
+        .join(render_endpoint)
+        .unwrap();
+
+    // Build request body with urls
+    let urls_str = urls.into_iter().map(|url| url.to_string()).collect();
+    let body = PaperteerBody::new(urls_str);
+
+    // Send to the paperteer url
+    let mut res = surf::post(paperteer_url)
+        .body(surf::Body::from_json(&body).unwrap())
+        .await
+        .unwrap();
+
+    // Receive the json response
+    // TODO: Check for body response
+    let PaperteerResponse { data } = res.body_json().await.unwrap();
+
+    // For each url, extract the article and images
+    for item in data {
+        let PaperteerItem {
+            html,
+            url,
+            response,
+        } = item;
+        if response == "ok" {
+            // Run the extract and download fn
+            match extract_and_download_imgs(&url, html, bar, partial_downloads, articles).await {
+                Ok(_) => bar.inc(1),
                 Err(e) => errors.push(e),
             }
-            bar.inc(1);
+        } else {
+            errors.push(crate::errors::ErrorKind::HTTPError("Paperteer failed".into()).into());
         }
-        articles
-    })
+    }
+    Ok(())
 }
 
 pub async fn fetch_html(url: &str) -> Result<HTMLResource, PaperoniError> {