Merge pull request #109 from snshn/version-bump

version bump (2.1.1 → 2.1.2)

.appveyor.yml

@@ -94,8 +94,8 @@ environment:
 # or test failure in the matching channels/targets from failing the entire build.
 matrix:
   allow_failures:
-    - channel: beta
     - channel: nightly
+    - channel: beta
 
 # If you only care about stable channel build failures, uncomment the following line:
     #- channel: beta
@@ -128,4 +128,3 @@ build: false
 # environment variable.
 test_script:
   - cargo test --verbose %cargoflags%
-  - cargo fmt --all -- --check

.travis.yml

@@ -18,10 +18,12 @@ before_script:
 script:
   - cargo build --all --locked --verbose
   - cargo test --all --locked --verbose
-  - cargo fmt --all -- --check
+  - |
+    if [[ "$TRAVIS_RUST_VERSION" == "stable" ]]; then
+      cargo fmt --all -- --check
+    fi
 
 jobs:
   allow_failures:
-    - rust: beta
     - rust: nightly
   fast_finish: true

Cargo.toml

@@ -1,11 +1,13 @@
 [package]
 name = "monolith"
-version = "2.1.1"
+version = "2.1.2"
+edition = "2018"
 authors = [
     "Sunshine <sunshine@uberspace.net>",
     "Mahdi Robatipoor <mahdi.robatipoor@gmail.com>",
     "Emmanuel Delaborde <th3rac25@gmail.com>",
     "Emi Simpson <emi@alchemi.dev>",
+    "rhysd <lin90162@yahoo.co.jp>",
 ]
 description = "CLI tool for saving web pages as a single HTML file"
 
@@ -15,5 +17,9 @@ clap = "2.33.0"
 html5ever = "0.24.1"
 lazy_static = "1.4.0"
 regex = "1.3.1"
-reqwest = "0.9.20"
 url = "2.1.0"
+
+[dependencies.reqwest]
+version = "0.10.*"
+default-features = false
+features = ["default-tls", "blocking", "gzip"]

README.md

@@ -11,8 +11,7 @@
 |___|   |__________|  \____________________|   |___|   |___|  |___|
 ```
 
-A data hoarder's dream come true: bundle any web page into a single HTML file.  
-You can finally replace that gazillion of open tabs with a gazillion of .html files stored somewhere on your precious little drive.
+A data hoarder's dream come true: bundle any web page into a single HTML file. You can finally replace that gazillion of open tabs with a gazillion of .html files stored somewhere on your precious little drive.
 
 Unlike the conventional "Save page as", `monolith` not only saves the target document, it embeds CSS, image, and JavaScript assets **all at once**, producing a single HTML5 document that is a joy to store and share.
 
@@ -25,11 +24,14 @@ If compared to saving websites with `wget -mpk`, this tool embeds all assets as
     $ cd monolith
     $ cargo install --path .
 
-### On macOS (via Homebrew)
+### With Homebrew (on macOS and GNU/Linux)
     $ brew install monolith
 
+### Using Snapcraft (on GNU/Linux)
+    $ snap install monolith
+
 ## Usage
-    $ monolith https://lyrics.github.io/db/p/portishead/dummy/roads/ -o portishead-roads-lyrics.html
+    $ monolith https://lyrics.github.io/db/P/Portishead/Dummy/Roads/ -o portishead-roads-lyrics.html
 
 ## Options
  - `-c`: Ignore styles
@@ -42,8 +44,16 @@ If compared to saving websites with `wget -mpk`, this tool embeds all assets as
  - `-s`: Silent mode
  - `-u`: Specify custom User-Agent
 
+## HTTPS and HTTP proxies
+Please set `https_proxy`, `http_proxy` and `no_proxy` environment variables.
+
+## Contributing
+Please open an issue if something is wrong, that helps make this project better.
+
 ## Related projects
+ - `Monolith Chrome Extension`: https://github.com/rhysd/monolith-of-web
  - `Pagesaver`: https://github.com/distributed-mind/pagesaver
+ - `Personal WayBack Machine`: https://github.com/popey/pwbm
  - `SingleFile`: https://github.com/gildas-lormeau/SingleFile
 
 ## License

snap/snapcraft.yaml

@@ -1,6 +1,7 @@
 name: monolith
 base: core18 
-version: git
+# Version data defined inside the monolith part below
+adopt-info: monolith
 summary: Monolith - Save HTML pages with ease 
 description: |
   A data hoarder's dream come true: bundle any web page into a single
@@ -17,6 +18,14 @@ description: |
 
 confinement: strict
 
+# Building on armhf fails, so we specify all supported non-armhf architectures
+architectures:
+  - build-on: amd64
+  - build-on: i386
+  - build-on: arm64
+  - build-on: ppc64el
+  - build-on: s390x
+
 parts:
   monolith:
     plugin: rust
@@ -24,6 +33,21 @@ parts:
     build-packages:
       - libssl-dev
       - pkg-config
+    override-pull: |
+      snapcraftctl pull
+      # Determine the current tag
+      last_committed_tag="$(git describe --tags --abbrev=0)"
+      last_committed_tag_ver="$(echo ${last_committed_tag} | sed 's/v//')"
+      # Determine the most recent version in the beta channel in the Snap Store
+      last_released_tag="$(snap info $SNAPCRAFT_PROJECT_NAME | awk '$1 == "beta:" { print $2 }')"
+      # If the latest tag from the upstream project has not been released to
+      # beta, build that tag instead of master.
+      if [ "${last_committed_tag_ver}" != "${last_released_tag}" ]; then
+        git fetch
+        git checkout "${last_committed_tag}"
+      fi
+      # set version number of the snap based on what we did above
+      snapcraftctl set-version $(git describe --tags --abbrev=0)
 
 apps:
   monolith:

src/args.rs

@@ -58,7 +58,7 @@ impl AppArgs {
         app_args.output = app.value_of("output").unwrap_or("").to_string();
         app_args.user_agent = app
             .value_of("user-agent")
-            .unwrap_or_else(|| DEFAULT_USER_AGENT)
+            .unwrap_or(DEFAULT_USER_AGENT)
             .to_string();
         app_args
     }

src/html.rs

@@ -1,3 +1,8 @@
+use crate::http::retrieve_asset;
+use crate::js::attr_is_event_handler;
+use crate::utils::{
+    data_to_dataurl, is_valid_url, resolve_css_imports, resolve_url, url_has_protocol,
+};
 use html5ever::interface::QualName;
 use html5ever::parse_document;
 use html5ever::rcdom::{Handle, NodeData, RcDom};
@@ -5,14 +10,11 @@ use html5ever::serialize::{serialize, SerializeOpts};
 use html5ever::tendril::{format_tendril, Tendril, TendrilSink};
 use html5ever::tree_builder::{Attribute, TreeSink};
 use html5ever::{local_name, namespace_url, ns};
-use http::retrieve_asset;
-use js::attr_is_event_handler;
-use reqwest::Client;
+use reqwest::blocking::Client;
 use std::collections::HashMap;
 use std::default::Default;
-use utils::{data_to_dataurl, is_valid_url, resolve_css_imports, resolve_url, url_has_protocol};
 
-const ICON_VALUES: [&str; 5] = [
+const ICON_VALUES: &[&str] = &[
     "icon",
     "shortcut icon",
     "mask-icon",
@@ -29,15 +31,18 @@ pub fn get_parent_node(node: &Handle) -> Handle {
     parent.and_then(|node| node.upgrade()).unwrap()
 }
 
-pub fn get_node_name(node: &Handle) -> String {
+pub fn get_node_name(node: &Handle) -> &'_ str {
     match &node.data {
-        NodeData::Element { ref name, .. } => name.local.as_ref().to_string(),
-        _ => str!(),
+        NodeData::Element { ref name, .. } => name.local.as_ref(),
+        _ => "",
     }
 }
 
 pub fn is_icon(attr_value: &str) -> bool {
-    ICON_VALUES.contains(&&*attr_value.to_lowercase())
+    ICON_VALUES
+        .iter()
+        .find(|a| attr_value.eq_ignore_ascii_case(a))
+        .is_some()
 }
 
 pub fn walk_and_embed_assets(
@@ -77,8 +82,6 @@ pub fn walk_and_embed_assets(
 
             match name.local.as_ref() {
                 "link" => {
-                    let mut link_type: &str = "";
-
                     // Remove integrity attributes
                     let mut i = 0;
                     while i < attrs_mut.len() {
@@ -90,90 +93,117 @@ pub fn walk_and_embed_assets(
                         }
                     }
 
+                    enum LinkType {
+                        Icon,
+                        Stylesheet,
+                        Preload,
+                        DnsPrefetch,
+                        Unknown,
+                    }
+
+                    let mut link_type = LinkType::Unknown;
                     for attr in attrs_mut.iter_mut() {
                         if &attr.name.local == "rel" {
-                            if is_icon(&attr.value.to_string()) {
-                                link_type = "icon";
+                            let value = attr.value.trim();
+                            if is_icon(value) {
+                                link_type = LinkType::Icon;
                                 break;
-                            } else if attr.value.to_string() == "stylesheet" {
-                                link_type = "stylesheet";
+                            } else if value.eq_ignore_ascii_case("stylesheet") {
+                                link_type = LinkType::Stylesheet;
+                                break;
+                            } else if value.eq_ignore_ascii_case("preload") {
+                                link_type = LinkType::Preload;
+                                break;
+                            } else if value.eq_ignore_ascii_case("dns-prefetch") {
+                                link_type = LinkType::DnsPrefetch;
                                 break;
                             }
                         }
                     }
+                    let link_type = link_type;
 
-                    if link_type == "icon" {
-                        for attr in attrs_mut.iter_mut() {
-                            if &attr.name.local == "href" {
-                                if opt_no_images {
-                                    attr.value.clear();
-                                } else {
-                                    let href_full_url: String =
-                                        resolve_url(&url, &attr.value.to_string())
-                                            .unwrap_or(str!());
-                                    let (favicon_dataurl, _) = retrieve_asset(
-                                        cache,
-                                        client,
-                                        &href_full_url,
-                                        true,
-                                        "",
-                                        opt_silent,
-                                    )
-                                    .unwrap_or((str!(), str!()));
-                                    attr.value.clear();
-                                    attr.value.push_slice(favicon_dataurl.as_str());
-                                }
-                            }
-                        }
-                    } else if link_type == "stylesheet" {
-                        for attr in attrs_mut.iter_mut() {
-                            if &attr.name.local == "href" {
-                                if opt_no_css {
-                                    attr.value.clear();
-                                } else {
-                                    let href_full_url: String =
-                                        resolve_url(&url, &attr.value.to_string())
-                                            .unwrap_or(str!());
-                                    let replacement_text = match retrieve_asset(
-                                        cache,
-                                        client,
-                                        &href_full_url,
-                                        false,
-                                        "text/css",
-                                        opt_silent,
-                                    ) {
-                                        // On successful retrieval, traverse CSS
-                                        Ok((css_data, _)) => resolve_css_imports(
+                    match link_type {
+                        LinkType::Icon => {
+                            for attr in attrs_mut.iter_mut() {
+                                if &attr.name.local == "href" {
+                                    if opt_no_images {
+                                        attr.value.clear();
+                                    } else {
+                                        let href_full_url = resolve_url(&url, attr.value.as_ref())
+                                            .unwrap_or_default();
+                                        let (favicon_dataurl, _) = retrieve_asset(
                                             cache,
                                             client,
-                                            &css_data,
-                                            true,
                                             &href_full_url,
-                                            opt_no_images,
+                                            true,
+                                            "",
                                             opt_silent,
-                                        ),
-
-                                        // If a network error occured, warn
-                                        Err(e) => {
-                                            eprintln!("Warning: {}", e,);
-
-                                            // If failed to resolve, replace with absolute URL
-                                            href_full_url
-                                        }
-                                    };
-
-                                    attr.value.clear();
-                                    attr.value.push_slice(&replacement_text);
+                                        )
+                                        .unwrap_or_default();
+                                        attr.value.clear();
+                                        attr.value.push_slice(favicon_dataurl.as_str());
+                                    }
                                 }
                             }
                         }
-                    } else {
-                        for attr in attrs_mut.iter_mut() {
-                            if &attr.name.local == "href" {
-                                let href_full_url: String =
-                                    resolve_url(&url, &attr.value.to_string()).unwrap_or(str!());
+                        LinkType::Stylesheet => {
+                            for attr in attrs_mut.iter_mut() {
+                                if &attr.name.local == "href" {
+                                    if opt_no_css {
+                                        attr.value.clear();
+                                    } else {
+                                        let href_full_url = resolve_url(&url, &attr.value.as_ref())
+                                            .unwrap_or_default();
+                                        let replacement_text = match retrieve_asset(
+                                            cache,
+                                            client,
+                                            &href_full_url,
+                                            false,
+                                            "text/css",
+                                            opt_silent,
+                                        ) {
+                                            // On successful retrieval, traverse CSS
+                                            Ok((css_data, _)) => resolve_css_imports(
+                                                cache,
+                                                client,
+                                                &css_data,
+                                                true,
+                                                &href_full_url,
+                                                opt_no_images,
+                                                opt_silent,
+                                            ),
+
+                                            // If a network error occured, warn
+                                            Err(e) => {
+                                                eprintln!("Warning: {}", e);
+
+                                                // If failed to resolve, replace with absolute URL
+                                                href_full_url
+                                            }
+                                        };
+
+                                        attr.value.clear();
+                                        attr.value.push_slice(&replacement_text);
+                                    }
+                                }
+                            }
+                        }
+                        LinkType::Preload | LinkType::DnsPrefetch => {
+                            // Since all resources are embedded as data URL, preloading and prefetching are unnecessary
+                            if let Some(attr) =
+                                attrs_mut.iter_mut().find(|a| &a.name.local == "href")
+                            {
                                 attr.value.clear();
-                                attr.value.push_slice(&href_full_url.as_str());
+                            }
+                        }
+                        LinkType::Unknown => {
+                            for attr in attrs_mut.iter_mut() {
+                                if &attr.name.local == "href" {
+                                    let href_full_url =
+                                        resolve_url(&url, attr.value.as_ref()).unwrap_or_default();
+                                    attr.value.clear();
+                                    attr.value.push_slice(&href_full_url.as_str());
+                                }
                             }
                         }
                     }
@@ -200,10 +230,10 @@ pub fn walk_and_embed_assets(
                             name: QualName::new(None, ns!(), local_name!("src")),
                             value: Tendril::from_slice(TRANSPARENT_PIXEL),
                         });
-                    } else if let Some((dataurl, _)) = (&found_datasrc)
-                        .into_iter()
+                    } else if let Some((dataurl, _)) = found_datasrc
+                        .iter()
                         .chain(&found_src) // Give dataurl priority
-                        .map(|attr| &attr.value)
+                        .map(|attr| attr.value.trim())
                         .filter(|src| !src.is_empty()) // Ignore empty srcs
                         .next()
                         .and_then(|src| resolve_url(&url, src).ok()) // Make absolute
@@ -229,8 +259,8 @@ pub fn walk_and_embed_assets(
                         let attr_name: &str = &attr.name.local;
 
                         if attr_name == "src" {
-                            let src_full_url: String = resolve_url(&url, &attr.value.to_string())
-                                .unwrap_or(attr.value.to_string());
+                            let src_full_url = resolve_url(&url, attr.value.trim())
+                                .unwrap_or_else(|_| attr.value.to_string());
                             attr.value.clear();
                             attr.value.push_slice(src_full_url.as_str());
                         } else if attr_name == "srcset" {
@@ -239,9 +269,8 @@ pub fn walk_and_embed_assets(
                                     attr.value.clear();
                                     attr.value.push_slice(TRANSPARENT_PIXEL);
                                 } else {
-                                    let srcset_full_url: String =
-                                        resolve_url(&url, &attr.value.to_string())
-                                            .unwrap_or(str!());
+                                    let srcset_full_url =
+                                        resolve_url(&url, attr.value.trim()).unwrap_or_default();
                                     let (source_dataurl, _) = retrieve_asset(
                                         cache,
                                         client,
@@ -261,13 +290,13 @@ pub fn walk_and_embed_assets(
                 "a" => {
                     for attr in attrs_mut.iter_mut() {
                         if &attr.name.local == "href" {
+                            let attr_value = attr.value.trim();
                             // Don't touch email links or hrefs which begin with a hash sign
-                            if attr.value.starts_with('#') || url_has_protocol(&attr.value) {
+                            if attr_value.starts_with('#') || url_has_protocol(attr_value) {
                                 continue;
                             }
 
-                            let href_full_url: String =
-                                resolve_url(&url, &attr.value.to_string()).unwrap_or(str!());
+                            let href_full_url = resolve_url(&url, attr_value).unwrap_or_default();
                             attr.value.clear();
                             attr.value.push_slice(href_full_url.as_str());
                         }
@@ -296,8 +325,8 @@ pub fn walk_and_embed_assets(
                     } else {
                         for attr in attrs_mut.iter_mut() {
                             if &attr.name.local == "src" {
-                                let src_full_url: String =
-                                    resolve_url(&url, &attr.value.to_string()).unwrap_or(str!());
+                                let src_full_url =
+                                    resolve_url(&url, attr.value.trim()).unwrap_or_default();
                                 let (js_dataurl, _) = retrieve_asset(
                                     cache,
                                     client,
@@ -339,10 +368,11 @@ pub fn walk_and_embed_assets(
                 "form" => {
                     for attr in attrs_mut.iter_mut() {
                         if &attr.name.local == "action" {
+                            let attr_value = attr.value.trim();
                             // Modify action to be a full URL
-                            if !is_valid_url(&attr.value) {
-                                let href_full_url: String =
-                                    resolve_url(&url, &attr.value.to_string()).unwrap_or(str!());
+                            if !is_valid_url(attr_value) {
+                                let href_full_url =
+                                    resolve_url(&url, attr_value).unwrap_or_default();
                                 attr.value.clear();
                                 attr.value.push_slice(href_full_url.as_str());
                             }
@@ -358,15 +388,14 @@ pub fn walk_and_embed_assets(
                                 continue;
                             }
 
-                            let iframe_src: String = attr.value.to_string();
+                            let iframe_src = attr.value.trim();
 
                             // Ignore iframes with empty source (they cause infinite loops)
-                            if iframe_src == str!() {
+                            if iframe_src.is_empty() {
                                 continue;
                             }
 
-                            let src_full_url: String =
-                                resolve_url(&url, &iframe_src).unwrap_or(str!());
+                            let src_full_url = resolve_url(&url, iframe_src).unwrap_or_default();
                             let (iframe_data, iframe_final_url) = retrieve_asset(
                                 cache,
                                 client,
@@ -399,18 +428,18 @@ pub fn walk_and_embed_assets(
                 "video" => {
                     for attr in attrs_mut.iter_mut() {
                         if &attr.name.local == "poster" {
-                            let video_poster = attr.value.to_string();
+                            let video_poster = attr.value.trim();
 
                             // Skip posters with empty source
-                            if video_poster == str!() {
+                            if video_poster.is_empty() {
                                 continue;
                             }
 
                             if opt_no_images {
                                 attr.value.clear();
                             } else {
-                                let poster_full_url: String =
-                                    resolve_url(&url, &video_poster).unwrap_or(str!());
+                                let poster_full_url =
+                                    resolve_url(&url, video_poster).unwrap_or_default();
                                 let (poster_dataurl, _) = retrieve_asset(
                                     cache,
                                     client,
@@ -515,9 +544,7 @@ fn get_child_node_by_name(handle: &Handle, node_name: &str) -> Handle {
     });
     match matching_children {
         Some(node) => node.clone(),
-        _ => {
-            return handle.clone();
-        }
+        _ => handle.clone(),
     }
 }
 
@@ -533,7 +560,7 @@ pub fn stringify_document(
     serialize(&mut buf, handle, SerializeOpts::default())
         .expect("unable to serialize DOM into buffer");
 
-    let mut result: String = String::from_utf8(buf).unwrap();
+    let mut result = String::from_utf8(buf).unwrap();
 
     if opt_isolate || opt_no_css || opt_no_frames || opt_no_js || opt_no_images {
         let mut buf: Vec<u8> = Vec::new();
@@ -557,7 +584,6 @@ pub fn stringify_document(
         if opt_no_images {
             content_attr += " img-src data:;";
         }
-        content_attr = content_attr.trim().to_string();
 
         let meta = dom.create_element(
             QualName::new(None, ns!(), local_name!("meta")),
@@ -568,7 +594,7 @@ pub fn stringify_document(
                 },
                 Attribute {
                     name: QualName::new(None, ns!(), local_name!("content")),
-                    value: format_tendril!("{}", content_attr),
+                    value: format_tendril!("{}", content_attr.trim()),
                 },
             ],
             Default::default(),

src/http.rs

@@ -1,7 +1,7 @@
+use crate::utils::{clean_url, data_to_dataurl, is_data_url};
+use reqwest::blocking::Client;
 use reqwest::header::CONTENT_TYPE;
-use reqwest::Client;
 use std::collections::HashMap;
-use utils::{clean_url, data_to_dataurl, is_data_url};
 
 pub fn retrieve_asset(
     cache: &mut HashMap<String, String>,
@@ -26,16 +26,17 @@ pub fn retrieve_asset(
         } else {
             // url not in cache, we request it
             let mut response = client.get(url).send()?;
+            let res_url = response.url().to_string();
 
             if !opt_silent {
-                if url == response.url().as_str() {
+                if url == res_url {
                     eprintln!("{}", &url);
                 } else {
-                    eprintln!("{} -> {}", &url, &response.url().as_str());
+                    eprintln!("{} -> {}", &url, &res_url);
                 }
             }
 
-            let new_cache_key = clean_url(response.url().to_string());
+            let new_cache_key = clean_url(&res_url);
 
             if as_dataurl {
                 // Convert response into a byte array
@@ -54,13 +55,13 @@ pub fn retrieve_asset(
                 };
                 let dataurl = data_to_dataurl(&mimetype, &data);
                 // insert in cache
-                cache.insert(new_cache_key, dataurl.to_string());
-                Ok((dataurl, response.url().to_string()))
+                cache.insert(new_cache_key, dataurl.clone());
+                Ok((dataurl, res_url))
             } else {
                 let content = response.text().unwrap();
                 // insert in cache
                 cache.insert(new_cache_key, content.clone());
-                Ok((content, response.url().to_string()))
+                Ok((content, res_url))
             }
         }
     }

src/js.rs

@@ -1,32 +1,103 @@
-const JS_DOM_EVENT_ATTRS: [&str; 21] = [
-    // Input
-    "onfocus",
+const JS_DOM_EVENT_ATTRS: &[&str] = &[
+    // From WHATWG HTML spec 8.1.5.2 'Event handlers on elements, Document objects, and Window objects':
+    //   https://html.spec.whatwg.org/#event-handlers-on-elements,-document-objects,-and-window-objects
+    //   https://html.spec.whatwg.org/#attributes-3 (table 'List of event handler content attributes')
+
+    // Global event handlers
+    "onabort",
+    "onauxclick",
     "onblur",
-    "onselect",
+    "oncancel",
+    "oncanplay",
+    "oncanplaythrough",
     "onchange",
-    "onsubmit",
-    "onreset",
+    "onclick",
+    "onclose",
+    "oncontextmenu",
+    "oncuechange",
+    "ondblclick",
+    "ondrag",
+    "ondragend",
+    "ondragenter",
+    "ondragexit",
+    "ondragleave",
+    "ondragover",
+    "ondragstart",
+    "ondrop",
+    "ondurationchange",
+    "onemptied",
+    "onended",
+    "onerror",
+    "onfocus",
+    "onformdata",
+    "oninput",
+    "oninvalid",
     "onkeydown",
     "onkeypress",
     "onkeyup",
-    // Mouse
-    "onmouseover",
-    "onmouseout",
-    "onmousedown",
-    "onmouseup",
-    "onmousemove",
-    // Click
-    "onclick",
-    "ondblclick",
-    // Load
     "onload",
-    "onunload",
-    "onabort",
-    "onerror",
+    "onloadeddata",
+    "onloadedmetadata",
+    "onloadstart",
+    "onmousedown",
+    "onmouseenter",
+    "onmouseleave",
+    "onmousemove",
+    "onmouseout",
+    "onmouseover",
+    "onmouseup",
+    "onwheel",
+    "onpause",
+    "onplay",
+    "onplaying",
+    "onprogress",
+    "onratechange",
+    "onreset",
     "onresize",
+    "onscroll",
+    "onsecuritypolicyviolation",
+    "onseeked",
+    "onseeking",
+    "onselect",
+    "onslotchange",
+    "onstalled",
+    "onsubmit",
+    "onsuspend",
+    "ontimeupdate",
+    "ontoggle",
+    "onvolumechange",
+    "onwaiting",
+    "onwebkitanimationend",
+    "onwebkitanimationiteration",
+    "onwebkitanimationstart",
+    "onwebkittransitionend",
+    // Event handlers for <body/> and <frameset/> elements
+    "onafterprint",
+    "onbeforeprint",
+    "onbeforeunload",
+    "onhashchange",
+    "onlanguagechange",
+    "onmessage",
+    "onmessageerror",
+    "onoffline",
+    "ononline",
+    "onpagehide",
+    "onpageshow",
+    "onpopstate",
+    "onrejectionhandled",
+    "onstorage",
+    "onunhandledrejection",
+    "onunload",
+    // Event handlers for <html/> element
+    "oncut",
+    "oncopy",
+    "onpaste",
 ];
 
 // Returns true if DOM attribute name matches a native JavaScript event handler
 pub fn attr_is_event_handler(attr_name: &str) -> bool {
-    JS_DOM_EVENT_ATTRS.contains(&attr_name.to_lowercase().as_str())
+    JS_DOM_EVENT_ATTRS
+        .iter()
+        .find(|a| attr_name.eq_ignore_ascii_case(a))
+        .is_some()
 }

src/lib.rs

@@ -1,9 +1,5 @@
-extern crate html5ever;
 #[macro_use]
 extern crate lazy_static;
-extern crate regex;
-extern crate reqwest;
-extern crate url;
 
 #[macro_use]
 mod macros;

src/main.rs

@@ -1,104 +1,111 @@
 #[macro_use]
 extern crate clap;
-extern crate monolith;
-extern crate reqwest;
 
 mod args;
 mod macros;
 
-use args::AppArgs;
+use crate::args::AppArgs;
 use monolith::html::{html_to_dom, stringify_document, walk_and_embed_assets};
 use monolith::http::retrieve_asset;
 use monolith::utils::is_valid_url;
+use reqwest::blocking::Client;
 use reqwest::header::{HeaderMap, HeaderValue, USER_AGENT};
 use std::collections::HashMap;
-use std::fs::{remove_file, File};
-use std::io::{Error, Write};
+use std::fs::File;
+use std::io::{self, Error, Write};
+use std::process;
 use std::time::Duration;
 
-fn create_file(file_path: &String, content: String) -> Result<(), Error> {
-    let file = File::create(file_path.as_str());
+enum Output {
+    Stdout(io::Stdout),
+    File(File),
+}
 
-    let mut file = match file {
-        Ok(file) => file,
-        Err(error) => return Err(error),
-    };
-
-    if content != str!() {
-        file.write_all(content.as_bytes())?;
-        file.write_all("\n".as_bytes())?;
-        file.sync_all()?;
-    } else {
-        // Remove the file right away if it had no content
-        remove_file(file_path.as_str())?;
+impl Output {
+    fn new(file_path: &str) -> Result<Output, Error> {
+        if file_path.is_empty() {
+            Ok(Output::Stdout(io::stdout()))
+        } else {
+            Ok(Output::File(File::create(file_path)?))
+        }
     }
 
-    Ok(())
+    fn writeln_str(&mut self, s: &str) -> Result<(), Error> {
+        match self {
+            Output::Stdout(stdout) => {
+                writeln!(stdout, "{}", s)?;
+                stdout.flush()
+            }
+            Output::File(f) => {
+                writeln!(f, "{}", s)?;
+                f.flush()
+            }
+        }
+    }
 }
 
 fn main() {
     let app_args = AppArgs::get();
-    let cache = &mut HashMap::new();
 
-    // Attempt to create output file
-    if app_args.output != str!() {
-        create_file(&app_args.output, str!()).unwrap();
+    if !is_valid_url(app_args.url_target.as_str()) {
+        eprintln!(
+            "Only HTTP and HTTPS URLs are allowed but got: {}",
+            &app_args.url_target
+        );
+        process::exit(1);
     }
 
-    if is_valid_url(app_args.url_target.as_str()) {
-        // Initialize client
-        let mut header_map = HeaderMap::new();
-        match HeaderValue::from_str(&app_args.user_agent) {
-            Ok(header) => header_map.insert(USER_AGENT, header),
-            Err(err) => {
-                eprintln!("Invalid user agent! {}", err);
-                return;
-            }
-        };
-        let client = reqwest::Client::builder()
-            .timeout(Duration::from_secs(10))
-            .danger_accept_invalid_certs(app_args.insecure)
-            .default_headers(header_map)
-            .build()
-            .expect("Failed to initialize HTTP client");
+    let mut output = Output::new(&app_args.output).expect("Could not prepare output");
 
-        // Retrieve root document
-        let (data, final_url) = retrieve_asset(
-            cache,
-            &client,
-            app_args.url_target.as_str(),
-            false,
-            "",
-            app_args.silent,
-        )
-        .unwrap();
-        let dom = html_to_dom(&data);
+    // Initialize client
+    let mut cache = HashMap::new();
+    let mut header_map = HeaderMap::new();
+    header_map.insert(
+        USER_AGENT,
+        HeaderValue::from_str(&app_args.user_agent).expect("Invalid User-Agent header specified"),
+    );
 
-        walk_and_embed_assets(
-            cache,
-            &client,
-            &final_url,
-            &dom.document,
-            app_args.no_css,
-            app_args.no_js,
-            app_args.no_images,
-            app_args.silent,
-            app_args.no_frames,
-        );
+    let client = Client::builder()
+        .timeout(Duration::from_secs(10))
+        .danger_accept_invalid_certs(app_args.insecure)
+        .default_headers(header_map)
+        .build()
+        .expect("Failed to initialize HTTP client");
 
-        let html: String = stringify_document(
-            &dom.document,
-            app_args.no_css,
-            app_args.no_frames,
-            app_args.no_js,
-            app_args.no_images,
-            app_args.isolate,
-        );
+    // Retrieve root document
+    let (data, final_url) = retrieve_asset(
+        &mut cache,
+        &client,
+        app_args.url_target.as_str(),
+        false,
+        "",
+        app_args.silent,
+    )
+    .expect("Could not retrieve assets in HTML");
+    let dom = html_to_dom(&data);
 
-        if app_args.output == str!() {
-            println!("{}", html);
-        } else {
-            create_file(&app_args.output, html).unwrap();
-        }
-    }
+    walk_and_embed_assets(
+        &mut cache,
+        &client,
+        &final_url,
+        &dom.document,
+        app_args.no_css,
+        app_args.no_js,
+        app_args.no_images,
+        app_args.silent,
+        app_args.no_frames,
+    );
+
+    let html: String = stringify_document(
+        &dom.document,
+        app_args.no_css,
+        app_args.no_frames,
+        app_args.no_js,
+        app_args.no_images,
+        app_args.isolate,
+    );
+
+    output
+        .writeln_str(&html)
+        .expect("Could not write HTML output");
 }

src/tests/html.rs

@@ -3,6 +3,7 @@ use crate::html::{
 };
 use html5ever::rcdom::{Handle, NodeData};
 use html5ever::serialize::{serialize, SerializeOpts};
+use reqwest::blocking::Client;
 use std::collections::HashMap;
 
 #[test]
@@ -33,7 +34,8 @@ fn test_get_parent_node_name() {
             }
             NodeData::Element { ref name, .. } => {
                 let node_name = name.local.as_ref().to_string();
-                let parent_node_name = get_node_name(&get_parent_node(node));
+                let parent = get_parent_node(node);
+                let parent_node_name = get_node_name(&parent);
                 if node_name == "head" || node_name == "body" {
                     assert_eq!(parent_node_name, "html");
                 } else if node_name == "div" {
@@ -71,7 +73,7 @@ fn test_walk_and_embed_assets() {
     let opt_no_images: bool = false;
     let opt_silent = true;
 
-    let client = reqwest::Client::new();
+    let client = Client::new();
 
     walk_and_embed_assets(
         cache,
@@ -107,7 +109,7 @@ fn test_walk_and_embed_assets_ensure_no_recursive_iframe() {
     let opt_no_images: bool = false;
     let opt_silent = true;
 
-    let client = reqwest::Client::new();
+    let client = Client::new();
 
     walk_and_embed_assets(
         cache,
@@ -144,7 +146,7 @@ fn test_walk_and_embed_assets_no_css() {
     let opt_no_js: bool = false;
     let opt_no_images: bool = false;
     let opt_silent = true;
-    let client = reqwest::Client::new();
+    let client = Client::new();
 
     walk_and_embed_assets(
         cache,
@@ -189,7 +191,7 @@ fn test_walk_and_embed_assets_no_images() {
     let opt_no_images: bool = true;
     let opt_silent = true;
 
-    let client = reqwest::Client::new();
+    let client = Client::new();
 
     walk_and_embed_assets(
         cache,
@@ -235,7 +237,7 @@ fn test_walk_and_embed_assets_no_frames() {
     let opt_no_js: bool = false;
     let opt_no_images: bool = false;
     let opt_silent = true;
-    let client = reqwest::Client::new();
+    let client = Client::new();
 
     walk_and_embed_assets(
         cache,
@@ -274,7 +276,7 @@ fn test_walk_and_embed_assets_no_js() {
     let opt_no_images: bool = false;
     let opt_silent = true;
 
-    let client = reqwest::Client::new();
+    let client = Client::new();
 
     walk_and_embed_assets(
         cache,
@@ -306,7 +308,7 @@ fn test_walk_and_embed_with_no_integrity() {
     let dom = html_to_dom(&html);
     let url = "http://localhost";
     let cache = &mut HashMap::new();
-    let client = reqwest::Client::new();
+    let client = Client::new();
     let opt_no_css: bool = true;
     let opt_no_frames: bool = true;
     let opt_no_js: bool = true;

src/tests/http.rs

@@ -1,9 +1,11 @@
 use crate::http::retrieve_asset;
+use reqwest::blocking::Client;
 use std::collections::HashMap;
+
 #[test]
 fn test_retrieve_asset() {
     let cache = &mut HashMap::new();
-    let client = reqwest::Client::new();
+    let client = Client::new();
     let (data, final_url) =
         retrieve_asset(cache, &client, "data:text/html;base64,...", true, "", false).unwrap();
     assert_eq!(&data, "data:text/html;base64,...");

src/utils.rs

@@ -1,9 +1,7 @@
-extern crate base64;
-
-use self::base64::encode;
-use http::retrieve_asset;
+use crate::http::retrieve_asset;
+use base64::encode;
 use regex::Regex;
-use reqwest::Client;
+use reqwest::blocking::Client;
 use std::collections::HashMap;
 use url::{ParseError, Url};