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-rw-r--r--pkgs/by-name/ba/back/src/web/mod.rs297
1 files changed, 119 insertions, 178 deletions
diff --git a/pkgs/by-name/ba/back/src/web/mod.rs b/pkgs/by-name/ba/back/src/web/mod.rs
index f7a4077..cc087ab 100644
--- a/pkgs/by-name/ba/back/src/web/mod.rs
+++ b/pkgs/by-name/ba/back/src/web/mod.rs
@@ -1,186 +1,127 @@
-// Back - An extremely simple git issue tracking system. Inspired by tvix's
-// panettone
-//
-// Copyright (C) 2024 Benedikt Peetz <benedikt.peetz@b-peetz.de>
-// SPDX-License-Identifier: AGPL-3.0-or-later
-//
-// This file is part of Back.
-//
-// You should have received a copy of the License along with this program.
-// If not, see <https://www.gnu.org/licenses/agpl.txt>.
-
-use crate::{
-    config::BackConfig,
-    error::{self, Error},
-    git_bug::{
-        dag::issues_from_repository,
-        issue::{CollapsedIssue, Status},
-    },
-};
-use prefix::BackPrefix;
-use rocket::{
-    get,
-    response::content::{RawCss, RawHtml},
-    State,
-};
-
-mod issue_html;
-pub mod prefix;
-
-#[get("/style.css")]
-pub fn styles() -> RawCss<String> {
-    RawCss(include_str!("../../assets/style.css").to_owned())
-}
+use bytes::Bytes;
+use http_body_util::combinators::BoxBody;
+use hyper::{server::conn::http1, service::service_fn, Method, Request, Response, StatusCode};
+use hyper_util::rt::TokioIo;
+use log::{error, info};
+use responses::{html_response, html_response_status, html_response_status_content_type};
+use tokio::net::TcpListener;
+
+use std::{convert::Infallible, net::SocketAddr, path::PathBuf, sync::Arc};
+
+use crate::{config::BackConfig, error, git_bug::issue::Status};
+
+mod generate;
+mod responses;
+
+async fn match_uri(
+    config: Arc<BackConfig>,
+    req: Request<hyper::body::Incoming>,
+) -> Result<Response<BoxBody<Bytes, Infallible>>, hyper::Error> {
+    if req.method() != Method::GET {
+        return Ok(html_response_status(
+            "Only get requests are supported",
+            StatusCode::NOT_ACCEPTABLE,
+        ));
+    }
 
-pub fn issue_list_boilerplate(
-    config: &State<BackConfig>,
-    wanted_status: Status,
-    counter_status: Status,
-) -> error::Result<RawHtml<String>> {
-    let repository = &config.repository;
-
-    let mut issue_list = issues_from_repository(&repository.to_thread_local())?
-        .into_iter()
-        .map(|issue| issue.collapse())
-        .collect::<Vec<CollapsedIssue>>();
-
-    // Sort by date descending.
-    issue_list.sort_by_key(|issue| unsafe { issue.timestamp.to_unsafe() });
-    issue_list.reverse();
-
-    let issue_list_str = issue_list.into_iter().fold(String::new(), |acc, issue| {
-        format!("{}{}", acc, {
-            if issue.status == wanted_status {
-                let issue_entry = issue.to_list_entry();
-                issue_entry.0
-            } else {
-                String::new()
+    let output = || -> Result<Response<BoxBody<Bytes, Infallible>>, error::Error> {
+        match req.uri().path().trim_end_matches("/") {
+            "" => Ok(html_response(generate::repos(&config)?)),
+
+            "/style.css" => Ok(responses::html_response_status_content_type(
+                include_str!("../../assets/style.css"),
+                StatusCode::OK,
+                "text/css",
+            )),
+
+            path if path.ends_with("/issues/open") => {
+                let repo_path = PathBuf::from(
+                    path.strip_suffix("/issues/open")
+                        .expect("This suffix exists")
+                        .strip_prefix("/")
+                        .expect("This also exists"),
+                );
+
+                let issues = generate::issues(&config, Status::Open, Status::Closed, &repo_path)?;
+                Ok(html_response(issues))
+            }
+            path if path.ends_with("/issues/closed") => {
+                let repo_path = PathBuf::from(
+                    path.strip_suffix("/issues/closed")
+                        .expect("This suffix exists")
+                        .strip_prefix("/")
+                        .expect("This also exists"),
+                );
+
+                let issues = generate::issues(&config, Status::Closed, Status::Open, &repo_path)?;
+                Ok(html_response(issues))
+            }
+            path if path.ends_with("/issues/feed") => {
+                let repo_path = PathBuf::from(
+                    path.strip_suffix("/issues/feed")
+                        .expect("This suffix exists")
+                        .strip_prefix("/")
+                        .expect("This also exists"),
+                );
+
+                let feed = generate::feed(&config, &repo_path)?;
+                Ok(html_response_status_content_type(
+                    feed,
+                    StatusCode::OK,
+                    "text/xml",
+                ))
             }
-        })
-    });
-
-    let counter_status_lower = counter_status.to_string().to_lowercase();
-    Ok(RawHtml(format!(
-        r#"
-    <!DOCTYPE html>
-    <html lang="en">
-       <head>
-          <title>Back</title>
-          <link href="/style.css" rel="stylesheet" type="text/css">
-          <meta content="width=device-width,initial-scale=1" name="viewport">
-       </head>
-       <body>
-          <div class="content">
-             <header>
-                <h1>{wanted_status} Issues</h1>
-             </header>
-             <main>
-                <div class="issue-links">
-                   <a href="/issues/{counter_status_lower}/">View {counter_status} issues</a>
-                   <a href="{}">Source code</a>
-                   <!--
-                   <form class="issue-search" method="get">
-                       <input name="search" title="Issue search query" type="search">
-                       <input class="sr-only" type="submit" value="Search Issues">
-                   </form>
-                   -->
-                </div>
-                <ol class="issue-list">
-                {issue_list_str}
-                </ol>
-             </main>
-          </div>
-       </body>
-    </html>
-    "#,
-        config.source_code_repository_url
-    )))
-}
 
-#[get("/issues/open")]
-pub fn open(config: &State<BackConfig>) -> error::Result<RawHtml<String>> {
-    issue_list_boilerplate(config, Status::Open, Status::Closed)
-}
-#[get("/issues/closed")]
-pub fn closed(config: &State<BackConfig>) -> error::Result<RawHtml<String>> {
-    issue_list_boilerplate(config, Status::Closed, Status::Open)
-}
+            path if path.contains("/issue/") => {
+                let (repo_path, prefix) = {
+                    let split: Vec<&str> = path.split("/issue/").collect();
+
+                    let prefix =
+                        gix::hash::Prefix::from_hex(split[1]).map_err(error::Error::from)?;
+
+                    let repo_path =
+                        PathBuf::from(split[0].strip_prefix("/").expect("This prefix exists"));
 
-#[get("/issues/feed")]
-pub fn feed(config: &State<BackConfig>) -> error::Result<RawHtml<String>> {
-    use rss::{ChannelBuilder, Item, ItemBuilder};
-
-    //Collect all Items as rss items
-    let mut items: Vec<Item> = issues_from_repository(&config.repository.to_thread_local())?
-        .into_iter()
-        .map(|issue| issue.collapse())
-        .map(|issue| {
-            ItemBuilder::default()
-                .title(issue.title.to_string())
-                .author(issue.author.to_string())
-                .description(issue.message.to_string())
-                .pub_date(issue.timestamp.to_string())
-                .link(format!("{}/issue/{}", &config.root.to_string(), issue.id))
-                .build()
-        })
-        .collect();
-    //Append all comments after converting them to rss items
-    items.extend(
-        issues_from_repository(&config.repository.to_thread_local())?
-            .into_iter()
-            .map(|issue| issue.collapse())
-            .filter(|issue| issue.comments.len() > 0)
-            .map(|issue| {
-                issue
-                    .comments
-                    .into_iter()
-                    .map(|comment| {
-                        ItemBuilder::default()
-                            .title(issue.title.to_string())
-                            .author(comment.author.to_string())
-                            .description(comment.message.to_string())
-                            .pub_date(comment.timestamp.to_string())
-                            .link(format!("{}/issue/{}", &config.root.to_string(), issue.id))
-                            .build()
-                    })
-                    .collect::<Vec<Item>>()
-            })
-            .flatten()
-            .collect::<Vec<Item>>(),
-    );
-
-    let channel = ChannelBuilder::default()
-        .title("Issues")
-        .link(config.root.to_string())
-        .description(format!("The rss feed for issues on {}.", config.root))
-        .items(items)
-        .build();
-    Ok(RawHtml(channel.to_string()))
+                    (repo_path, prefix)
+                };
+                Ok(html_response(generate::issue(&config, &repo_path, prefix)?))
+            }
+
+            other => Ok(responses::html_response_status_content_type(
+                format!("'{}' not found", other),
+                StatusCode::NOT_FOUND,
+                "text/plain",
+            )),
+        }
+    };
+    match output() {
+        Ok(response) => Ok(response),
+        Err(err) => Ok(err.into_response()),
+    }
 }
 
-#[get("/issue/<prefix>")]
-pub fn show_issue(
-    config: &State<BackConfig>,
-    prefix: Result<BackPrefix, gix::hash::prefix::from_hex::Error>,
-) -> error::Result<RawHtml<String>> {
-    // NOTE(@bpeetz): Explicitly unwrap the `prefix` here (instead of taking the unwrapped value as
-    // argument), to avoid triggering rockets "errors forward to the next route" feature.
-    // This ensures, that our error message actually reaches the user. <2024-12-26>
-    let prefix = prefix?;
-
-    let repository = config.repository.to_thread_local();
-
-    let all_issues: Vec<CollapsedIssue> = issues_from_repository(&repository)?
-        .into_iter()
-        .map(|val| val.collapse())
-        .collect();
-
-    let maybe_issue = all_issues
-        .iter()
-        .find(|issue| issue.id.to_string().starts_with(&prefix.to_string()));
-
-    match maybe_issue {
-        Some(issue) => Ok(issue.to_html(config)),
-        None => Err(Error::IssuesPrefixMissing { prefix }),
+pub async fn main(config: Arc<BackConfig>) -> Result<(), error::Error> {
+    let addr: SocketAddr = ([127, 0, 0, 1], 8000).into();
+
+    let listener = TcpListener::bind(addr)
+        .await
+        .map_err(|err| error::Error::TcpBind { addr, err })?;
+    info!("Listening on http://{}", addr);
+    loop {
+        let (stream, _) = listener
+            .accept()
+            .await
+            .map_err(|err| error::Error::TcpAccept { err })?;
+        let io = TokioIo::new(stream);
+
+        let local_config = Arc::clone(&config);
+
+        let service = service_fn(move |req| match_uri(Arc::clone(&local_config), req));
+
+        tokio::task::spawn(async move {
+            if let Err(err) = http1::Builder::new().serve_connection(io, service).await {
+                error!("Error serving connection: {:?}", err);
+            }
+        });
     }
 }