add option for custom network request timeout

README.md

@@ -42,10 +42,11 @@ If compared to saving websites with `wget -mpk`, this tool embeds all assets as
  - `-k`: Accept invalid X.509 (TLS) certificates
  - `-o`: Write output to file
  - `-s`: Silent mode
+ - `-t`: Set custom network request timeout (in seconds)
  - `-u`: Specify custom User-Agent
 
 ## HTTPS and HTTP proxies
-Please set `https_proxy`, `http_proxy` and `no_proxy` environment variables.
+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.

src/args.rs

@@ -11,9 +11,11 @@ pub struct AppArgs {
     pub isolate: bool,
     pub output: String,
     pub silent: bool,
+    pub timeout: u64,
     pub user_agent: String,
 }
 
+const DEFAULT_NETWORK_TIMEOUT: u64 = 120;
 const DEFAULT_USER_AGENT: &str =
     "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:66.0) Gecko/20100101 Firefox/66.0";
 
@@ -39,6 +41,7 @@ impl AppArgs {
             .args_from_usage("-k, --insecure 'Accept invalid X.509 (TLS) certificates'")
             .args_from_usage("-o, --output=[document.html] 'Write output to <file>'")
             .args_from_usage("-s, --silent 'Suppress verbosity'")
+            .args_from_usage("-t, --timeout=[60] 'Specify custom timeout for network requests'")
             .args_from_usage("-u, --user-agent=[Iceweasel] 'Custom User-Agent string'")
             // .args_from_usage("-v, --include-video 'Embed video sources'")
             .get_matches();
@@ -55,6 +58,11 @@ impl AppArgs {
         app_args.insecure = app.is_present("insecure");
         app_args.isolate = app.is_present("isolate");
         app_args.silent = app.is_present("silent");
+        app_args.timeout = app
+            .value_of("timeout")
+            .unwrap_or(&DEFAULT_NETWORK_TIMEOUT.to_string())
+            .parse::<u64>()
+            .unwrap();
         app_args.output = app.value_of("output").unwrap_or("").to_string();
         app_args.user_agent = app
             .value_of("user-agent")

src/html.rs

@@ -22,8 +22,7 @@ const ICON_VALUES: &[&str] = &[
     "fluid-icon",
 ];
 
-const TRANSPARENT_PIXEL: &str =
+const TRANSPARENT_PIXEL: &str = "data:image/png;base64,\
-    "data:image/png;base64,\
      iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=";
 
 pub fn get_parent_node(node: &Handle) -> Handle {

src/main.rs

@@ -65,8 +65,13 @@ fn main() {
         HeaderValue::from_str(&app_args.user_agent).expect("Invalid User-Agent header specified"),
     );
 
+    let timeout: u64 = if app_args.timeout > 0 {
+        app_args.timeout
+    } else {
+        std::u64::MAX / 4
+    };
     let client = Client::builder()
-        .timeout(Duration::from_secs(10))
+        .timeout(Duration::from_secs(timeout))
         .danger_accept_invalid_certs(app_args.insecure)
         .default_headers(header_map)
         .build()