bump version

check for empty http response and parsed documents without root element

See merge request news-flash/article_scraper!11

.gitlab-ci.yml

@@ -1,15 +1,16 @@
 stages:
   - build
 
-
 run-build:
   stage: build
-  image: rust:1.79
+  image: rust:1.86
   before_script:
     - rustup component add rustfmt
     - rustup component add clippy
+    - export LIBXML2=$(pkg-config libxml-2.0 --variable=libdir)/libxml2.so
   script:
     - rustc --version && cargo --version
+    - echo $LIBXML2
     - cargo fmt -- --check
     - cargo clippy --all-targets --all-features -- -D warnings
     - cargo build --release

Cargo.toml

@@ -3,7 +3,7 @@ members = ["article_scraper", "article_scraper_cli"]
 resolver = "2"
 
 [workspace.package]
-version = "2.1.1"
+version = "2.1.3"
 authors = ["Jan Lukas Gernert <jangernert@gmail.com>"]
 edition = "2021"
 license = "GPL-3.0-or-later"

article_scraper/Cargo.toml

@@ -14,17 +14,17 @@ exclude = ["resources/tests"]
 [dependencies]
 thiserror = "2.0"
 libxml = "0.3"
-reqwest = { version = "0.12", features = ["json", "native-tls", "gzip", "brotli", "stream"] }
+reqwest = { version = "0.12", features = ["stream"] }
 tokio = { version = "1", features = ["macros", "fs", "io-util"] }
 url = "2.5"
-regex = "1.10"
+regex = "1.11"
 encoding_rs = "0.8"
 chrono = "0.4"
 base64 = "0.22"
 image = "0.25"
 log = "0.4"
-rust-embed="8.4"
-once_cell = "1.19"
+rust-embed = "8.7"
+once_cell = "1.21"
 escaper = "0.1"
 futures = "0.3"
 unic-emoji-char = "0.9"

article_scraper/ftr-site-config

@@ -1 +1 @@
-Subproject commit ccde390b11893cbafdc84f74b449ddc3cc05c024
+Subproject commit 69aa220193d99427d3822fabccdfaeede56cd532

article_scraper/src/error.rs

@@ -6,10 +6,10 @@ use thiserror::Error;
 
 #[derive(Error, Debug)]
 pub enum ScraperError {
-    #[error("")]
+    #[error("Configerror {0}")]
     Config(#[from] ConfigError),
-    #[error("")]
+    #[error("ImageDownloadError {0}")]
     Image(#[from] ImageDownloadError),
-    #[error("")]
+    #[error("FullTextParserError {0}")]
     Scrap(#[from] FullTextParserError),
 }

article_scraper/src/full_text_parser/metadata.rs

@@ -158,7 +158,7 @@ fn extract_date(
 fn get_meta(context: &Context, name: &str) -> Option<String> {
     Util::get_attribute(
         context,
-        &format!("//meta[contains(@name, '{}')]", name),
+        &format!("//meta[contains(@name, '{name}')]"),
         "content",
     )
     .ok()

article_scraper/src/full_text_parser/mod.rs

@@ -69,6 +69,11 @@ impl FullTextParser {
 
         let html = Self::get_body(response).await?;
 
+        if html.is_empty() {
+            log::error!("Empty response body");
+            return Err(FullTextParserError::Http);
+        }
+
         // check for fingerprints
         let config = if config.is_none() {
             if let Some(url) = Fingerprints::detect(&html) {
@@ -264,10 +269,17 @@ impl FullTextParser {
         }
 
         // parse html
-        Self::parse_html_string_patched(html.as_str()).map_err(|err| {
+        let document = Self::parse_html_string_patched(html.as_str()).map_err(|err| {
             log::error!("Parsing HTML failed for downloaded HTML {:?}", err);
             FullTextParserError::Xml
-        })
+        })?;
+
+        if document.get_root_element().is_none() {
+            log::error!("document without root");
+            Err(FullTextParserError::Xml)
+        } else {
+            Ok(document)
+        }
     }
 
     /// FIXME: Here are some patched functions of libxml crate.
@@ -354,19 +366,32 @@ impl FullTextParser {
             .send()
             .await
             .map_err(|err| {
-                log::error!(
-                    "Downloading HTML failed: GET '{}' - '{}'",
-                    url.as_str(),
-                    err
-                );
+                log::error!("Downloading HTML failed: GET '{url}' - '{err}'");
                 FullTextParserError::Http
             })?;
         Ok(response)
     }
 
     async fn get_body(response: Response) -> Result<String, FullTextParserError> {
-        if response.status().is_success() {
+        let status = response.status();
+        if !status.is_success() {
+            log::error!("status code: {status}");
+            return Err(FullTextParserError::Http);
+        }
+
         let headers = response.headers().clone();
+
+        if headers
+            .get(reqwest::header::CONTENT_LENGTH)
+            .and_then(|hv| hv.to_str().ok())
+            .and_then(|str| str.parse::<i64>().ok())
+            .map(|content_length| content_length == 0)
+            .unwrap_or(false)
+        {
+            log::error!("Empty response body");
+            return Err(FullTextParserError::Http);
+        }
+
         let bytes = response
             .bytes()
             .await
@@ -375,14 +400,14 @@ impl FullTextParser {
         match from_utf8(&bytes) {
             Ok(utf8_str) => {
                 log::debug!("Valid utf-8 string");
-                    return Ok(utf8_str.into());
+                Ok(utf8_str.into())
             }
             Err(error) => {
                 log::debug!("Invalid utf-8 string");
                 let lossy_string = std::string::String::from_utf8_lossy(&bytes);
 
                 if let Some(encoding) = Self::get_encoding_from_html(&lossy_string) {
-                        log::debug!("Encoding extracted from HTML: '{}'", encoding);
+                    log::debug!("Encoding extracted from HTML: '{encoding}'");
                     if let Some(decoded_html) = Self::decode_html(&bytes, encoding) {
                         let decoded_html = decoded_html.replacen(
                             &format!("charset=\"{encoding}\""),
@@ -394,7 +419,7 @@ impl FullTextParser {
                 }
 
                 if let Some(encoding) = Self::get_encoding_from_http_header(&headers) {
-                        log::debug!("Encoding extracted from headers: '{}'", encoding);
+                    log::debug!("Encoding extracted from headers: '{encoding}'");
                     if let Some(decoded_html) = Self::decode_html(&bytes, encoding) {
                         let decoded_html = decoded_html.replacen(
                             &format!("charset=\"{encoding}\""),
@@ -405,14 +430,11 @@ impl FullTextParser {
                     }
                 }
 
-                    return Err(FullTextParserError::Utf8(error));
+                Err(FullTextParserError::Utf8(error))
             }
         }
     }
 
-        Err(FullTextParserError::Http)
-    }
-
     pub async fn download(
         url: &url::Url,
         client: &Client,
@@ -422,8 +444,13 @@ impl FullTextParser {
         let headers = Util::generate_headers(config, global_config)?;
         let response = Self::get_response(url, client, headers).await?;
         let body = Self::get_body(response).await?;
+        if body.is_empty() {
+            log::error!("Empty response body");
+            Err(FullTextParserError::Http)
+        } else {
             Ok(body)
         }
+    }
 
     fn get_encoding_from_http_header(headers: &reqwest::header::HeaderMap) -> Option<&str> {
         headers
@@ -695,7 +722,7 @@ impl FullTextParser {
     }
 
     fn fix_iframe_size(context: &Context, site_name: &str) -> Result<(), FullTextParserError> {
-        let xpath = &format!("//iframe[contains(@src, '{}')]", site_name);
+        let xpath = &format!("//iframe[contains(@src, '{site_name}')]");
         let node_vec = Util::evaluate_xpath(context, xpath, false)?;
         for mut node in node_vec {
             if node.is_null() {
@@ -734,7 +761,7 @@ impl FullTextParser {
     ) -> Result<(), FullTextParserError> {
         let xpath_tag = tag.unwrap_or("*");
 
-        let xpath = &format!("//{}[@{}]", xpath_tag, attribute);
+        let xpath = &format!("//{xpath_tag}[@{attribute}]");
         let node_vec = Util::evaluate_xpath(context, xpath, false)?;
         for mut node in node_vec {
             if let Err(err) = node.remove_property(attribute) {
@@ -764,17 +791,16 @@ impl FullTextParser {
             if let Some(url) = node.get_attribute(attribute) {
                 let trimmed_url = url.trim();
 
-                let is_hash_url = url.starts_with('#');
+                if url.starts_with('#') || url.starts_with("\\#") {
+                    continue;
+                }
+
                 let is_relative_url = url::Url::parse(&url)
                     .err()
                     .map(|err| err == url::ParseError::RelativeUrlWithoutBase)
                     .unwrap_or(false);
                 let is_javascript = trimmed_url.contains("javascript:");
 
-                if !is_hash_url && node.get_name().to_uppercase() == "A" {
-                    _ = node.set_attribute("target", "_blank");
-                }
-
                 if let Some(srcset) = node.get_attribute("srcset") {
                     let res = constants::SRC_SET_URL
                         .captures_iter(&srcset)
@@ -805,9 +831,7 @@ impl FullTextParser {
                     _ = node.set_attribute("srcset", res.as_str());
                 }
 
-                if is_hash_url {
-                    _ = node.set_attribute(attribute, trimmed_url);
-                } else if is_relative_url {
+                if is_relative_url {
                     let completed_url = match article_url.join(trimmed_url) {
                         Ok(joined_url) => joined_url,
                         Err(_) => continue,
@@ -920,7 +944,7 @@ impl FullTextParser {
             for xpath_strip_img_src in &config.strip_image_src {
                 _ = Util::strip_node(
                     context,
-                    &format!("//img[contains(@src,'{}')]", xpath_strip_img_src),
+                    &format!("//img[contains(@src,'{xpath_strip_img_src}')]"),
                 );
             }
         }
@@ -928,7 +952,7 @@ impl FullTextParser {
         for xpath_strip_img_src in &global_config.strip_image_src {
             _ = Util::strip_node(
                 context,
-                &format!("//img[contains(@src,'{}')]", xpath_strip_img_src),
+                &format!("//img[contains(@src,'{xpath_strip_img_src}')]"),
             );
         }
 
@@ -1243,7 +1267,7 @@ impl FullTextParser {
         Ok(())
     }
 
-    fn remove_single_cell_tables(root: &mut Node) {
+    pub(crate) fn remove_single_cell_tables(root: &mut Node) {
         let mut node_iter = Some(root.clone());
 
         while let Some(node) = node_iter {
@@ -1281,7 +1305,7 @@ impl FullTextParser {
         }
     }
 
-    fn remove_extra_p_and_div(root: &mut Node) {
+    pub(crate) fn remove_extra_p_and_div(root: &mut Node) {
         let mut node_iter = Some(root.clone());
 
         while let Some(mut node) = node_iter {
@@ -1303,7 +1327,7 @@ impl FullTextParser {
         }
     }
 
-    fn remove_share_elements(root: &mut Node) {
+    pub(crate) fn remove_share_elements(root: &mut Node) {
         let mut node_iter = Some(root.clone());
 
         while let Some(mut node) = node_iter {
@@ -1323,7 +1347,7 @@ impl FullTextParser {
         }
     }
 
-    fn clean_attributes(root: &mut Node) -> Result<(), FullTextParserError> {
+    pub(crate) fn clean_attributes(root: &mut Node) -> Result<(), FullTextParserError> {
         let mut node_iter = Some(root.clone());
 
         while let Some(mut node) = node_iter {
@@ -1412,7 +1436,7 @@ impl FullTextParser {
         Ok(())
     }
 
-    fn remove_empty_nodes(root: &mut Node) {
+    pub(crate) fn remove_empty_nodes(root: &mut Node) {
         let mut node_iter = Some(root.clone());
 
         while let Some(mut node) = node_iter {

article_scraper/src/images/mod.rs

@@ -219,7 +219,9 @@ impl ImageDownloader {
         let mut image_urls = Vec::new();
 
         for node in node_vec {
-            image_urls.push(Self::harvest_image_urls_from_node(node)?);
+            if let Ok(url) = Self::harvest_image_urls_from_node(node) {
+                image_urls.push(url);
+            }
         }
 
         Ok(image_urls)
@@ -274,7 +276,7 @@ impl ImageDownloader {
         }
 
         let image_base64 = base64::engine::general_purpose::STANDARD.encode(&image.data);
-        let image_string = format!("data:{};base64,{}", content_type, image_base64);
+        let image_string = format!("data:{content_type};base64,{image_base64}");
         let image_data_base64 = ImageDataBase64 {
             url: image.url,
             data: image_string,

article_scraper/src/util.rs

@@ -264,17 +264,15 @@ impl Util {
         context: &Context,
         id_or_class: &str,
     ) -> Result<(), FullTextParserError> {
-        let xpath = &format!(
-            "//*[contains(@class, '{}') or contains(@id, '{}')]",
-            id_or_class, id_or_class
-        );
+        let xpath =
+            &format!("//*[contains(@class, '{id_or_class}') or contains(@id, '{id_or_class}')]");
 
         let mut ancestor = xpath.clone();
         if ancestor.starts_with("//") {
             ancestor = ancestor.chars().skip(2).collect();
         }
 
-        let query = &format!("{}[not(ancestor::{})]", xpath, ancestor);
+        let query = &format!("{xpath}[not(ancestor::{ancestor})]");
         let node_vec = Util::evaluate_xpath(context, query, false)?;
         for mut node in node_vec {
             if node.is_null() {

article_scraper_cli/Cargo.toml

@@ -14,6 +14,17 @@ clap =  { version = "4.5", features = [ "derive" ] }
 simplelog = "0.12"
 log = "0.4"
 url = "2.5"
-reqwest = { version = "0.12", features = ["json", "native-tls", "gzip", "brotli", "stream"] }
-tokio = { version = "1", features = ["macros", "fs", "io-util", "rt-multi-thread" ] }
-indicatif = "0.17"
+reqwest = { version = "0.12", features = [
+    "json",
+    "native-tls",
+    "gzip",
+    "brotli",
+    "stream",
+] }
+tokio = { version = "1", features = [
+    "macros",
+    "fs",
+    "io-util",
+    "rt-multi-thread",
+] }
+indicatif = "0.18"