From 2e48ea90e18aff1f3f5bfa879faee5620d21e299 Mon Sep 17 00:00:00 2001
From: robatipoor <mahdi.robatipoor@gmail.com>
Date: Thu, 10 Oct 2019 08:58:12 +0330
Subject: [PATCH 1/9] move argument parser section to args mod

---
 src/args.rs | 62 +++++++++++++++++++++++++++++++++++++++++++
 src/main.rs | 76 +++++++++++++++--------------------------------------
 2 files changed, 83 insertions(+), 55 deletions(-)
 create mode 100644 src/args.rs

diff --git a/src/args.rs b/src/args.rs
new file mode 100644
index 0000000..34fe5d0
--- /dev/null
+++ b/src/args.rs
@@ -0,0 +1,62 @@
+use clap::{App, Arg};
+
+#[derive(Default)]
+pub struct AppArgs {
+    pub url_target: String,
+    pub no_css: bool,
+    pub no_frames: bool,
+    pub no_images: bool,
+    pub no_js: bool,
+    pub insecure: bool,
+    pub isolate: bool,
+    pub silent: bool,
+    pub user_agent: String,
+}
+
+const DEFAULT_USER_AGENT: &str =
+    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:66.0) Gecko/20100101 Firefox/66.0";
+
+impl AppArgs {
+    pub fn get() -> AppArgs {
+        let app = App::new("monolith")
+            .version(crate_version!())
+            .author(crate_authors!("\n"))
+            .about(crate_description!())
+            .arg(
+                Arg::with_name("url")
+                    .required(true)
+                    .takes_value(true)
+                    .index(1)
+                    .help("URL to download"),
+            )
+            // .args_from_usage("-a, --include-audio 'Embed audio sources'")
+            .args_from_usage("-c, --no-css 'Ignore styles'")
+            .args_from_usage("-f, --no-frames 'Exclude iframes'")
+            .args_from_usage("-i, --no-images 'Remove images'")
+            .args_from_usage("-I, --isolate 'Cut off from the Internet'")
+            .args_from_usage("-j, --no-js 'Exclude JavaScript'")
+            .args_from_usage("-k, --insecure 'Accept invalid X.509 (TLS) certificates'")
+            .args_from_usage("-s, --silent 'Suppress verbosity'")
+            .args_from_usage("-u, --user-agent=[Iceweasel] 'Custom User-Agent string'")
+            // .args_from_usage("-v, --include-video 'Embed video sources'")
+            .get_matches();
+        let mut app_args = AppArgs::default();
+        // Process the command
+        app_args.url_target = app
+            .value_of("url")
+            .expect("please set target url")
+            .to_string();
+        app_args.no_css = app.is_present("no-css");
+        app_args.no_frames = app.is_present("no-frames");
+        app_args.no_images = app.is_present("no-images");
+        app_args.no_js = app.is_present("no-js");
+        app_args.insecure = app.is_present("insecure");
+        app_args.isolate = app.is_present("isolate");
+        app_args.silent = app.is_present("silent");
+        app_args.user_agent = app
+            .value_of("user-agent")
+            .unwrap_or_else(|| DEFAULT_USER_AGENT)
+            .to_string();
+        app_args
+    }
+}
diff --git a/src/main.rs b/src/main.rs
index 42a74a7..e6b72ae 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,57 +2,23 @@
 extern crate clap;
 extern crate monolith;
 
-use clap::{App, Arg};
+mod args;
+
+use 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;
 
-const DEFAULT_USER_AGENT: &str =
-    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:66.0) Gecko/20100101 Firefox/66.0";
-
 fn main() {
-    let command = App::new("monolith")
-        .version(crate_version!())
-        .author(crate_authors!("\n"))
-        .about(crate_description!())
-        .arg(
-            Arg::with_name("url")
-                .required(true)
-                .takes_value(true)
-                .index(1)
-                .help("URL to download"),
-        )
-        // .args_from_usage("-a, --include-audio 'Embed audio sources'")
-        .args_from_usage("-c, --no-css 'Ignore styles'")
-        .args_from_usage("-f, --no-frames 'Exclude iframes'")
-        .args_from_usage("-i, --no-images 'Remove images'")
-        .args_from_usage("-I, --isolate 'Cut off from the Internet'")
-        .args_from_usage("-j, --no-js 'Exclude JavaScript'")
-        .args_from_usage("-k, --insecure 'Accept invalid X.509 (TLS) certificates'")
-        .args_from_usage("-s, --silent 'Suppress verbosity'")
-        .args_from_usage("-u, --user-agent=[Iceweasel] 'Custom User-Agent string'")
-        // .args_from_usage("-v, --include-video 'Embed video sources'")
-        .get_matches();
-
-    // Process the command
-    let arg_target: &str = command.value_of("url").unwrap();
-    let opt_no_css: bool = command.is_present("no-css");
-    let opt_no_frames: bool = command.is_present("no-frames");
-    let opt_no_images: bool = command.is_present("no-images");
-    let opt_no_js: bool = command.is_present("no-js");
-    let opt_insecure: bool = command.is_present("insecure");
-    let opt_isolate: bool = command.is_present("isolate");
-    let opt_silent: bool = command.is_present("silent");
-    let opt_user_agent: &str = command.value_of("user-agent").unwrap_or(DEFAULT_USER_AGENT);
-
-    if is_valid_url(arg_target) {
+    let app_args = AppArgs::get();
+    if is_valid_url(app_args.url_target.as_str()) {
         let (data, final_url) = retrieve_asset(
-            &arg_target,
+            app_args.url_target.as_str(),
             false,
             "",
-            opt_user_agent,
-            opt_silent,
-            opt_insecure,
+            app_args.user_agent.as_str(),
+            app_args.silent,
+            app_args.insecure,
         )
         .unwrap();
         let dom = html_to_dom(&data);
@@ -60,22 +26,22 @@ fn main() {
         walk_and_embed_assets(
             &final_url,
             &dom.document,
-            opt_no_css,
-            opt_no_js,
-            opt_no_images,
-            opt_user_agent,
-            opt_silent,
-            opt_insecure,
-            opt_no_frames,
+            app_args.no_css,
+            app_args.no_js,
+            app_args.no_images,
+            app_args.user_agent.as_str(),
+            app_args.silent,
+            app_args.insecure,
+            app_args.no_frames,
         );
 
         let html: String = stringify_document(
             &dom.document,
-            opt_no_css,
-            opt_no_frames,
-            opt_no_js,
-            opt_no_images,
-            opt_isolate,
+            app_args.no_css,
+            app_args.no_frames,
+            app_args.no_js,
+            app_args.no_images,
+            app_args.isolate,
         );
 
         println!("{}", html);

From b5d42bd7227f2a15b55b0cbe6b68e9b7ff9afabc Mon Sep 17 00:00:00 2001
From: Sunshine <sunshine@uberspace.net>
Date: Thu, 10 Oct 2019 07:49:46 -0400
Subject: [PATCH 2/9] Bump version number

---
 Cargo.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Cargo.toml b/Cargo.toml
index 6068a86..876c387 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "monolith"
-version = "2.0.20"
+version = "2.0.21"
 authors = [
     "Sunshine <sunshine@uberspace.net>",
     "Mahdi Robatipoor <mahdi.robatipoor@gmail.com>",

From 55fe523a1c9e2927707e298938f9d5accd324bd7 Mon Sep 17 00:00:00 2001
From: robatipoor <mahdi.robatipoor@gmail.com>
Date: Thu, 10 Oct 2019 16:53:00 +0330
Subject: [PATCH 3/9] refactor utils functions

---
 src/utils.rs | 39 +++++++++++++++++----------------------
 1 file changed, 17 insertions(+), 22 deletions(-)

diff --git a/src/utils.rs b/src/utils.rs
index 61a5d83..069e974 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -9,7 +9,7 @@ lazy_static! {
     static ref REGEX_URL: Regex = Regex::new(r"^https?://").unwrap();
 }
 
-static MAGIC: [[&[u8]; 2]; 19] = [
+const MAGIC: [[&[u8]; 2]; 19] = [
     // Image
     [b"GIF87a", b"image/gif"],
     [b"GIF89a", b"image/gif"],
@@ -35,7 +35,7 @@ static MAGIC: [[&[u8]; 2]; 19] = [
 ];
 
 pub fn data_to_dataurl(mime: &str, data: &[u8]) -> String {
-    let mimetype = if mime == "" {
+    let mimetype = if mime.is_empty() {
         detect_mimetype(data)
     } else {
         mime.to_string()
@@ -44,39 +44,34 @@ pub fn data_to_dataurl(mime: &str, data: &[u8]) -> String {
 }
 
 pub fn detect_mimetype(data: &[u8]) -> String {
-    let mut re = String::new();
-
     for item in MAGIC.iter() {
         if data.starts_with(item[0]) {
-            re = String::from_utf8(item[1].to_vec()).unwrap();
-            break;
+            return String::from_utf8(item[1].to_vec()).unwrap();
         }
     }
-
-    re
+    "".to_owned()
 }
 
-pub fn url_has_protocol(url: &str) -> bool {
-    HAS_PROTOCOL.is_match(&url.to_lowercase())
+pub fn url_has_protocol<T: AsRef<str>>(url: T) -> bool {
+    HAS_PROTOCOL.is_match(url.as_ref().to_lowercase().as_str())
 }
 
-pub fn is_data_url(url: &str) -> Result<bool, ParseError> {
-    match Url::parse(url) {
-        Ok(parsed_url) => Ok(parsed_url.scheme() == "data"),
-        Err(err) => Err(err),
-    }
+pub fn is_data_url<T: AsRef<str>>(url: T) -> Result<bool, ParseError> {
+    Url::parse(url.as_ref()).and_then(|u| Ok(u.scheme() == "data"))
 }
 
-pub fn is_valid_url(path: &str) -> bool {
-    REGEX_URL.is_match(path)
+pub fn is_valid_url<T: AsRef<str>>(path: T) -> bool {
+    REGEX_URL.is_match(path.as_ref())
 }
 
-pub fn resolve_url(from: &str, to: &str) -> Result<String, ParseError> {
-    let result = if is_valid_url(to) {
-        to.to_string()
+pub fn resolve_url<T: AsRef<str>, U: AsRef<str>>(from: T, to: U) -> Result<String, ParseError> {
+    let result = if is_valid_url(to.as_ref()) {
+        to.as_ref().to_string()
     } else {
-        Url::parse(from)?.join(to)?.to_string()
+        Url::parse(from.as_ref())?
+            .join(to.as_ref())?
+            .as_ref()
+            .to_string()
     };
-
     Ok(result)
 }

From 8add3a8746babccefd1d8d9660cb1e7a5544c95c Mon Sep 17 00:00:00 2001
From: Sunshine <sunshine@uberspace.net>
Date: Thu, 10 Oct 2019 22:34:38 -0400
Subject: [PATCH 4/9] Bump version number

---
 Cargo.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Cargo.toml b/Cargo.toml
index 876c387..810edf5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "monolith"
-version = "2.0.21"
+version = "2.0.22"
 authors = [
     "Sunshine <sunshine@uberspace.net>",
     "Mahdi Robatipoor <mahdi.robatipoor@gmail.com>",

From 1ff5e910879aa99725cbdb3dfdbb68a3406abfad Mon Sep 17 00:00:00 2001
From: voila <th3rac25@gmail.com>
Date: Wed, 23 Oct 2019 11:33:22 +1300
Subject: [PATCH 5/9] Use HashMap as cache to minimize the number of HTTP
 requests (#75)

Use HashMap as cache to minimize the number of HTTP requests
---
 src/html.rs       | 12 +++++++
 src/http.rs       | 82 +++++++++++++++++++++++++++--------------------
 src/main.rs       |  4 +++
 src/tests/html.rs | 14 ++++++++
 src/tests/http.rs | 16 +++++++--
 5 files changed, 91 insertions(+), 37 deletions(-)

diff --git a/src/html.rs b/src/html.rs
index fa10175..3c7057f 100644
--- a/src/html.rs
+++ b/src/html.rs
@@ -7,6 +7,7 @@ use html5ever::tree_builder::{Attribute, TreeSink};
 use html5ever::{local_name, namespace_url, ns};
 use http::retrieve_asset;
 use js::attr_is_event_handler;
+use std::collections::HashMap;
 use std::default::Default;
 use utils::{data_to_dataurl, is_valid_url, resolve_url, url_has_protocol};
 
@@ -43,6 +44,7 @@ pub fn is_icon(attr_value: &str) -> bool {
 }
 
 pub fn walk_and_embed_assets(
+    cache: &mut HashMap<String, String>,
     url: &str,
     node: &Handle,
     opt_no_css: bool,
@@ -58,6 +60,7 @@ pub fn walk_and_embed_assets(
             // Dig deeper
             for child in node.children.borrow().iter() {
                 walk_and_embed_assets(
+                    cache,
                     &url,
                     child,
                     opt_no_css,
@@ -103,6 +106,7 @@ pub fn walk_and_embed_assets(
                                         resolve_url(&url, &attr.value.to_string())
                                             .unwrap_or(EMPTY_STRING.clone());
                                     let (favicon_dataurl, _) = retrieve_asset(
+                                        cache,
                                         &href_full_url,
                                         true,
                                         "",
@@ -126,6 +130,7 @@ pub fn walk_and_embed_assets(
                                         resolve_url(&url, &attr.value.to_string())
                                             .unwrap_or(EMPTY_STRING.clone());
                                     let (css_dataurl, _) = retrieve_asset(
+                                        cache,
                                         &href_full_url,
                                         true,
                                         "text/css",
@@ -168,6 +173,7 @@ pub fn walk_and_embed_assets(
                                 let src_full_url: String =
                                     resolve_url(&url, &value).unwrap_or(EMPTY_STRING.clone());
                                 let (img_dataurl, _) = retrieve_asset(
+                                    cache,
                                     &src_full_url,
                                     true,
                                     "",
@@ -201,6 +207,7 @@ pub fn walk_and_embed_assets(
                                         resolve_url(&url, &attr.value.to_string())
                                             .unwrap_or(EMPTY_STRING.clone());
                                     let (source_dataurl, _) = retrieve_asset(
+                                        cache,
                                         &srcset_full_url,
                                         true,
                                         "",
@@ -247,6 +254,7 @@ pub fn walk_and_embed_assets(
                                     resolve_url(&url, &attr.value.to_string())
                                         .unwrap_or(EMPTY_STRING.clone());
                                 let (js_dataurl, _) = retrieve_asset(
+                                    cache,
                                     &src_full_url,
                                     true,
                                     "application/javascript",
@@ -300,6 +308,7 @@ pub fn walk_and_embed_assets(
                             let src_full_url: String =
                                 resolve_url(&url, &iframe_src).unwrap_or(EMPTY_STRING.clone());
                             let (iframe_data, iframe_final_url) = retrieve_asset(
+                                cache,
                                 &src_full_url,
                                 false,
                                 "text/html",
@@ -310,6 +319,7 @@ pub fn walk_and_embed_assets(
                             .unwrap_or((EMPTY_STRING.clone(), src_full_url));
                             let dom = html_to_dom(&iframe_data);
                             walk_and_embed_assets(
+                                cache,
                                 &iframe_final_url,
                                 &dom.document,
                                 opt_no_css,
@@ -344,6 +354,7 @@ pub fn walk_and_embed_assets(
                                 let poster_full_url: String = resolve_url(&url, &video_poster)
                                     .unwrap_or(EMPTY_STRING.clone());
                                 let (poster_dataurl, _) = retrieve_asset(
+                                    cache,
                                     &poster_full_url,
                                     true,
                                     "",
@@ -392,6 +403,7 @@ pub fn walk_and_embed_assets(
             // Dig deeper
             for child in node.children.borrow().iter() {
                 walk_and_embed_assets(
+                    cache,
                     &url,
                     child,
                     opt_no_css,
diff --git a/src/http.rs b/src/http.rs
index 19bf902..97e77a7 100644
--- a/src/http.rs
+++ b/src/http.rs
@@ -1,9 +1,11 @@
 use reqwest::header::{CONTENT_TYPE, USER_AGENT};
 use reqwest::Client;
+use std::collections::HashMap;
 use std::time::Duration;
 use utils::{data_to_dataurl, is_data_url};
 
 pub fn retrieve_asset(
+    cache: &mut HashMap<String, String>,
     url: &str,
     as_dataurl: bool,
     mime: &str,
@@ -14,42 +16,54 @@ pub fn retrieve_asset(
     if is_data_url(&url).unwrap() {
         Ok((url.to_string(), url.to_string()))
     } else {
-        let client = Client::builder()
-            .timeout(Duration::from_secs(10))
-            .danger_accept_invalid_certs(opt_insecure)
-            .build()?;
-        let mut response = client.get(url).header(USER_AGENT, opt_user_agent).send()?;
-
-        if !opt_silent {
-            if url == response.url().as_str() {
-                eprintln!("[ {} ]", &url);
-            } else {
-                eprintln!("[ {} -> {} ]", &url, &response.url().as_str());
+        if cache.contains_key(&url.to_string()) {
+            // url is in cache
+            if !opt_silent {
+                eprintln!("[ {} ] (from cache)", &url);
             }
-        }
-
-        if as_dataurl {
-            // Convert response into a byte array
-            let mut data: Vec<u8> = vec![];
-            response.copy_to(&mut data)?;
-
-            // Attempt to obtain MIME type by reading the Content-Type header
-            let mimetype = if mime == "" {
-                response
-                    .headers()
-                    .get(CONTENT_TYPE)
-                    .and_then(|header| header.to_str().ok())
-                    .unwrap_or(&mime)
-            } else {
-                mime
-            };
-
-            Ok((
-                data_to_dataurl(&mimetype, &data),
-                response.url().to_string(),
-            ))
+            let data = cache.get(&url.to_string()).unwrap();
+            Ok((data.to_string(), url.to_string()))
         } else {
-            Ok((response.text().unwrap(), response.url().to_string()))
+            // url not in cache, we request it
+            let client = Client::builder()
+                .timeout(Duration::from_secs(10))
+                .danger_accept_invalid_certs(opt_insecure)
+                .build()?;
+            let mut response = client.get(url).header(USER_AGENT, opt_user_agent).send()?;
+
+            if !opt_silent {
+                if url == response.url().as_str() {
+                    eprintln!("[ {} ]", &url);
+                } else {
+                    eprintln!("[ {} -> {} ]", &url, &response.url().as_str());
+                }
+            }
+
+            if as_dataurl {
+                // Convert response into a byte array
+                let mut data: Vec<u8> = vec![];
+                response.copy_to(&mut data)?;
+
+                // Attempt to obtain MIME type by reading the Content-Type header
+                let mimetype = if mime == "" {
+                    response
+                        .headers()
+                        .get(CONTENT_TYPE)
+                        .and_then(|header| header.to_str().ok())
+                        .unwrap_or(&mime)
+                } else {
+                    mime
+                };
+                let dataurl = data_to_dataurl(&mimetype, &data);
+                // insert in cache
+                cache.insert(response.url().to_string(), dataurl.to_string());
+                Ok((dataurl, response.url().to_string()))
+            } else {
+                let content = response.text().unwrap();
+                // insert in cache
+                cache.insert(response.url().to_string(), content.clone());
+                Ok((content, response.url().to_string()))
+            }
         }
     }
 }
diff --git a/src/main.rs b/src/main.rs
index e6b72ae..50fab9e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -8,11 +8,14 @@ use 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 std::collections::HashMap;
 
 fn main() {
     let app_args = AppArgs::get();
+    let cache = &mut HashMap::new();
     if is_valid_url(app_args.url_target.as_str()) {
         let (data, final_url) = retrieve_asset(
+            cache,
             app_args.url_target.as_str(),
             false,
             "",
@@ -24,6 +27,7 @@ fn main() {
         let dom = html_to_dom(&data);
 
         walk_and_embed_assets(
+            cache,
             &final_url,
             &dom.document,
             app_args.no_css,
diff --git a/src/tests/html.rs b/src/tests/html.rs
index 11de822..b7a571b 100644
--- a/src/tests/html.rs
+++ b/src/tests/html.rs
@@ -3,6 +3,7 @@ use crate::html::{
 };
 use html5ever::rcdom::{Handle, NodeData};
 use html5ever::serialize::{serialize, SerializeOpts};
+use std::collections::HashMap;
 
 #[test]
 fn test_is_icon() {
@@ -58,6 +59,8 @@ fn test_get_parent_node_name() {
 
 #[test]
 fn test_walk_and_embed_assets() {
+    let cache = &mut HashMap::new();
+
     let html = "<div><P></P></div>";
     let dom = html_to_dom(&html);
     let url = "http://localhost";
@@ -70,6 +73,7 @@ fn test_walk_and_embed_assets() {
     let opt_insecure = false;
 
     walk_and_embed_assets(
+        cache,
         &url,
         &dom.document,
         opt_no_css,
@@ -95,6 +99,7 @@ fn test_walk_and_embed_assets_ensure_no_recursive_iframe() {
     let html = "<div><P></P><iframe src=\"\"></iframe></div>";
     let dom = html_to_dom(&html);
     let url = "http://localhost";
+    let cache = &mut HashMap::new();
 
     let opt_no_css: bool = false;
     let opt_no_frames: bool = false;
@@ -104,6 +109,7 @@ fn test_walk_and_embed_assets_ensure_no_recursive_iframe() {
     let opt_insecure = false;
 
     walk_and_embed_assets(
+        cache,
         &url,
         &dom.document,
         opt_no_css,
@@ -131,6 +137,7 @@ fn test_walk_and_embed_assets_no_css() {
                 <div style=\"display: none;\"></div>";
     let dom = html_to_dom(&html);
     let url = "http://localhost";
+    let cache = &mut HashMap::new();
 
     let opt_no_css: bool = true;
     let opt_no_frames: bool = false;
@@ -140,6 +147,7 @@ fn test_walk_and_embed_assets_no_css() {
     let opt_insecure = false;
 
     walk_and_embed_assets(
+        cache,
         &url,
         &dom.document,
         opt_no_css,
@@ -174,6 +182,7 @@ fn test_walk_and_embed_assets_no_images() {
                 <div><img src=\"http://localhost/assets/mono_lisa.png\" /></div>";
     let dom = html_to_dom(&html);
     let url = "http://localhost";
+    let cache = &mut HashMap::new();
 
     let opt_no_css: bool = false;
     let opt_no_frames: bool = false;
@@ -183,6 +192,7 @@ fn test_walk_and_embed_assets_no_images() {
     let opt_insecure = false;
 
     walk_and_embed_assets(
+        cache,
         &url,
         &dom.document,
         opt_no_css,
@@ -219,6 +229,7 @@ fn test_walk_and_embed_assets_no_frames() {
     let html = "<iframe src=\"http://trackbook.com\"></iframe>";
     let dom = html_to_dom(&html);
     let url = "http://localhost";
+    let cache = &mut HashMap::new();
 
     let opt_no_css: bool = false;
     let opt_no_frames: bool = true;
@@ -228,6 +239,7 @@ fn test_walk_and_embed_assets_no_frames() {
     let opt_insecure = false;
 
     walk_and_embed_assets(
+        cache,
         &url,
         &dom.document,
         opt_no_css,
@@ -256,6 +268,7 @@ fn test_walk_and_embed_assets_no_js() {
                 </div>";
     let dom = html_to_dom(&html);
     let url = "http://localhost";
+    let cache = &mut HashMap::new();
 
     let opt_no_css: bool = false;
     let opt_no_frames: bool = false;
@@ -265,6 +278,7 @@ fn test_walk_and_embed_assets_no_js() {
     let opt_insecure = false;
 
     walk_and_embed_assets(
+        cache,
         &url,
         &dom.document,
         opt_no_css,
diff --git a/src/tests/http.rs b/src/tests/http.rs
index 003919b..b603c2b 100644
--- a/src/tests/http.rs
+++ b/src/tests/http.rs
@@ -1,13 +1,23 @@
 use crate::http::retrieve_asset;
-
+use std::collections::HashMap;
 #[test]
 fn test_retrieve_asset() {
-    let (data, final_url) =
-        retrieve_asset("data:text/html;base64,...", true, "", "", true, false).unwrap();
+    let cache = &mut HashMap::new();
+    let (data, final_url) = retrieve_asset(
+        cache,
+        "data:text/html;base64,...",
+        true,
+        "",
+        "",
+        true,
+        false,
+    )
+    .unwrap();
     assert_eq!(&data, "data:text/html;base64,...");
     assert_eq!(&final_url, "data:text/html;base64,...");
 
     let (data, final_url) = retrieve_asset(
+        cache,
         "data:text/html;base64,...",
         true,
         "image/png",

From b0c55d5016344fc344851446fb62655307da9e96 Mon Sep 17 00:00:00 2001
From: Sunshine <sunshine@uberspace.net>
Date: Tue, 22 Oct 2019 18:36:10 -0400
Subject: [PATCH 6/9] Add Emmanuel to the list of authors

---
 Cargo.toml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Cargo.toml b/Cargo.toml
index 810edf5..c239eda 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,7 @@ version = "2.0.22"
 authors = [
     "Sunshine <sunshine@uberspace.net>",
     "Mahdi Robatipoor <mahdi.robatipoor@gmail.com>",
+    "Emmanuel Delaborde <th3rac25@gmail.com>",
 ]
 description = "CLI tool for saving web pages as a single HTML file"
 

From 491185e191b09051f25ca5a0809ee576e42a9d44 Mon Sep 17 00:00:00 2001
From: Sunshine <sunshine@uberspace.net>
Date: Tue, 22 Oct 2019 18:37:27 -0400
Subject: [PATCH 7/9] =?UTF-8?q?Bump=20version=20number=20(2.0.22=20?=
 =?UTF-8?q?=E2=86=92=202.0.23)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Cargo.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Cargo.toml b/Cargo.toml
index c239eda..7bb4abd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "monolith"
-version = "2.0.22"
+version = "2.0.23"
 authors = [
     "Sunshine <sunshine@uberspace.net>",
     "Mahdi Robatipoor <mahdi.robatipoor@gmail.com>",

From 178abd07bd84019ac70409f61f30ead33e9ec305 Mon Sep 17 00:00:00 2001
From: Rui Chen <chenrui333@gmail.com>
Date: Tue, 3 Dec 2019 00:30:57 -0500
Subject: [PATCH 8/9] Add Cargo.lock file

---
 .gitignore |    4 -
 Cargo.lock | 1724 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 1724 insertions(+), 4 deletions(-)
 create mode 100644 Cargo.lock

diff --git a/.gitignore b/.gitignore
index 81c5833..70905ef 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,10 +2,6 @@
 # will have compiled files and executables
 /target/
 
-# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
-
 # These are backup files generated by rustfmt
 **/*.rs.bk
 
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..089b71e
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,1724 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "adler32"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "aho-corasick"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "ansi_term"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "atty"
+version = "0.2.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "autocfg"
+version = "0.1.7"
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+
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+
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From f8040f4d8c342914f9f6112a4c6c245c433a8c07 Mon Sep 17 00:00:00 2001
From: Rui Chen <chenrui333@gmail.com>
Date: Tue, 3 Dec 2019 23:12:52 -0500
Subject: [PATCH 9/9] Add --locked flag to the cargo build/test

---
 .travis.yml | 6 +++---
 Makefile    | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 050d3dd..30838c4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,13 +9,13 @@ os:
 
 rust:
     - stable
-    - beta 
+    - beta
     - nightly
 
 before_script:
     - rustup component add rustfmt
 
 script:
-    - cargo build --verbose
-    - cargo test --verbose
+    - cargo build --locked --verbose
+    - cargo test --locked --verbose
     - cargo fmt --all -- --check
diff --git a/Makefile b/Makefile
index 64aa130..5964e1a 100644
--- a/Makefile
+++ b/Makefile
@@ -3,13 +3,13 @@
 all: test build
 
 build:
-	@cargo build
+	@cargo build --locked
 
 install:
-	@cargo install --force --path .
+	@cargo install --force --locked --path .
 
 test:
-	@cargo test
+	@cargo test --locked
 	@cargo fmt --all -- --check
 
 lint: