Support for self-hosted Gitea (#164)

deps.rs is now available for self-hosted Gitea at
`/repo/gitea/<DOMAIN>/owner/repo`, e. g.
`/repo/gitea/git.example.org/deps-rs/deps.rs`,
`/repo/gitea/git.example.org:1234/deps-rs/deps.rs`,
`/repo/gitea/http://unsafe-gitea.org/deps-rs/deps.rs`.

This _should_ also include support for Gitea hosted in subdirectories,
e. g. `www.example.org/gitea`, though I haven't tested this yet.

If no protocol (`https://`/`http://`) is specified, `https://` is
automatically added to the beginning of the gitea server's URL.
However I could also change this to only accept https. Another
option might be the use of URL-encoding.
I am open for feedback, feel free to suggest changes.

Implementation notes:

- The Router now matches `/repo/*site/:qual/:name` instead of
  `/repo/:site/:qual/:name` to allow for an arbitrary number of
  `/`s before qual and name.
- `RepoSite` now has a new variant `Gitea(GiteaDomain)`.
- `RepoSite` no longer implements `Copy`. However this should not
  be problematic because `Copy`ing was only used for `to_base_uri`,
  `to_usercontent_base_uri` and `to_usercontent_repo_suffix` which
  now accept `&self` references.
- `RepoSite` no longer implements `AsRef` and now uses `Display`
  instead.

- updated test `correct_raw_url_generation`
- updated readme

Related to #84, #141

README.md

@@ -13,7 +13,7 @@ We currently support projects and crates hosted on crates.io, Github, Gitlab, Bi
 To analyze the state of your dependencies you can use the following URLs:
 
 - for projects on crates.io: `https://deps.rs/crate/<NAME>`
-- for projects on Github, Gitlab, Bitbucket, SourceHut, or Codeberg: `https://deps.rs/repo/<HOSTER>/<USER>/<REPO>` (where `<HOSTER>` is either `github`, `gitlab`, `bitbucket`, `sourcehut`, or `codeberg`)
+- for projects on Github, Gitlab, Bitbucket, SourceHut, Codeberg, or Gitea: `https://deps.rs/repo/<HOSTER>/<USER>/<REPO>` (where `<HOSTER>` is either `github`, `gitlab`, `bitbucket`, `sourcehut`, `codeberg`, or `gitea/<DOMAIN>`)
 
 ## Badges
 

src/models/repo.rs

@@ -42,49 +42,52 @@ impl fmt::Display for RepoPath {
         write!(
             f,
             "{} => {}/{}",
-            self.site.as_ref(),
+            self.site.to_string(),
             self.qual.as_ref(),
             self.name.as_ref()
         )
     }
 }
 
-#[derive(Clone, Copy, Debug, Hash, PartialEq, Eq)]
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
 pub enum RepoSite {
     Github,
     Gitlab,
     Bitbucket,
     Sourcehut,
     Codeberg,
+    Gitea(GiteaDomain),
 }
 
 impl RepoSite {
-    pub fn to_base_uri(self) -> &'static str {
+    pub fn to_base_uri(&self) -> &str {
         match self {
             RepoSite::Github => "https://github.com",
             RepoSite::Gitlab => "https://gitlab.com",
             RepoSite::Bitbucket => "https://bitbucket.org",
             RepoSite::Sourcehut => "https://git.sr.ht",
             RepoSite::Codeberg => "https://codeberg.org",
+            RepoSite::Gitea(domain) => domain.as_ref(),
         }
     }
 
-    pub fn to_usercontent_base_uri(self) -> &'static str {
+    pub fn to_usercontent_base_uri(&self) -> &str {
         match self {
             RepoSite::Github => "https://raw.githubusercontent.com",
             RepoSite::Gitlab => "https://gitlab.com",
             RepoSite::Bitbucket => "https://bitbucket.org",
             RepoSite::Sourcehut => "https://git.sr.ht",
             RepoSite::Codeberg => "https://codeberg.org",
+            RepoSite::Gitea(domain) => domain.as_ref(),
         }
     }
 
-    pub fn to_usercontent_repo_suffix(self) -> &'static str {
+    pub fn to_usercontent_repo_suffix(&self) -> &'static str {
         match self {
             RepoSite::Github => "HEAD",
             RepoSite::Gitlab | RepoSite::Bitbucket => "raw/HEAD",
             RepoSite::Sourcehut => "blob/HEAD",
-            RepoSite::Codeberg => "raw",
+            RepoSite::Codeberg | RepoSite::Gitea(_) => "raw",
         }
     }
 }
@@ -93,25 +96,64 @@ impl FromStr for RepoSite {
     type Err = Error;
 
     fn from_str(input: &str) -> Result<RepoSite, Error> {
-        match input {
-            "github" => Ok(RepoSite::Github),
-            "gitlab" => Ok(RepoSite::Gitlab),
-            "bitbucket" => Ok(RepoSite::Bitbucket),
-            "sourcehut" => Ok(RepoSite::Sourcehut),
-            "codeberg" => Ok(RepoSite::Codeberg),
-            _ => Err(anyhow!("unknown repo site identifier")),
+        if let Some((site, domain)) = input.split_once("/") {
+            match site {
+                "gitea" => Ok(RepoSite::Gitea(domain.parse()?)),
+                _ => Err(anyhow!("unknown repo site identifier")),
+            }
+        } else {
+            match input {
+                "github" => Ok(RepoSite::Github),
+                "gitlab" => Ok(RepoSite::Gitlab),
+                "bitbucket" => Ok(RepoSite::Bitbucket),
+                "sourcehut" => Ok(RepoSite::Sourcehut),
+                "codeberg" => Ok(RepoSite::Codeberg),
+                _ => Err(anyhow!("unknown repo site identifier")),
+            }
         }
     }
 }
 
-impl AsRef<str> for RepoSite {
-    fn as_ref(&self) -> &str {
+impl fmt::Display for RepoSite {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
-            RepoSite::Github => "github",
-            RepoSite::Gitlab => "gitlab",
-            RepoSite::Bitbucket => "bitbucket",
-            RepoSite::Sourcehut => "sourcehut",
-            RepoSite::Codeberg => "codeberg",
+            RepoSite::Github => write!(f, "github"),
+            RepoSite::Gitlab => write!(f, "gitlab"),
+            RepoSite::Bitbucket => write!(f, "bitbucket"),
+            RepoSite::Sourcehut => write!(f, "sourcehut"),
+            RepoSite::Codeberg => write!(f, "codeberg"),
+            RepoSite::Gitea(s) => write!(f, "gitea/{s}"),
+        }
+    }
+}
+
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub struct GiteaDomain(String);
+
+impl FromStr for GiteaDomain {
+    type Err = Error;
+
+    fn from_str(input: &str) -> Result<GiteaDomain, Error> {
+        if input.starts_with("https://") || input.starts_with("http://") {
+            Ok(GiteaDomain(input.to_string()))
+        } else {
+            Ok(GiteaDomain(format!("https://{input}")))
+        }
+    }
+}
+
+impl AsRef<str> for GiteaDomain {
+    fn as_ref(&self) -> &str {
+        self.0.as_ref()
+    }
+}
+
+impl fmt::Display for GiteaDomain {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        if self.0.starts_with("https://") {
+            f.write_str(&self.0["https://".len()..])
+        } else {
+            self.0.fmt(f)
         }
     }
 }
@@ -215,5 +257,21 @@ mod tests {
             let exp = format!("https://codeberg.org/deps-rs/deps.rs/raw/{}", expected);
             assert_eq!(out.to_string(), exp);
         }
+
+        for (input, expected) in &paths {
+            let repo = RepoPath::from_parts("gitea/gitea.com", "deps-rs", "deps.rs").unwrap();
+            let out = repo.to_usercontent_file_url(RelativePath::new(input));
+
+            let exp = format!("https://gitea.com/deps-rs/deps.rs/raw/{}", expected);
+            assert_eq!(out.to_string(), exp);
+        }
+
+        for (input, expected) in &paths {
+            let repo = RepoPath::from_parts("gitea/example.com/git", "deps-rs", "deps.rs").unwrap();
+            let out = repo.to_usercontent_file_url(RelativePath::new(input));
+
+            let exp = format!("https://example.com/git/deps-rs/deps.rs/raw/{}", expected);
+            assert_eq!(out.to_string(), exp);
+        }
     }
 }

src/server/mod.rs

@@ -58,11 +58,11 @@ impl App {
         router.add("/static/logo.svg", Route::Static(StaticFile::FaviconPng));
 
         router.add(
-            "/repo/:site/:qual/:name",
+            "/repo/*site/:qual/:name",
             Route::RepoStatus(StatusFormat::Html),
         );
         router.add(
-            "/repo/:site/:qual/:name/status.svg",
+            "/repo/*site/:qual/:name/status.svg",
             Route::RepoStatus(StatusFormat::Svg),
         );
 

src/server/views/html/index.rs

@@ -21,12 +21,12 @@ fn popular_table(popular_repos: Vec<Repository>, popular_crates: Vec<CratePath>)
                         @for repo in popular_repos.into_iter().take(10) {
                             tr {
                                 td {
-                                    a href=(format!("{}/repo/{}/{}/{}", &super::SELF_BASE_URL as &str, repo.path.site.as_ref(), repo.path.qual.as_ref(), repo.path.name.as_ref())) {
+                                    a href=(format!("{}/repo/{}/{}/{}", &super::SELF_BASE_URL as &str, repo.path.site, repo.path.qual.as_ref(), repo.path.name.as_ref())) {
                                         (format!("{} / {}", repo.path.qual.as_ref(), repo.path.name.as_ref()))
                                     }
                                 }
                                 td class="has-text-right" {
-                                    img src=(format!("{}/repo/{}/{}/{}/status.svg", &super::SELF_BASE_URL as &str, repo.path.site.as_ref(), repo.path.qual.as_ref(), repo.path.name.as_ref()));
+                                    img src=(format!("{}/repo/{}/{}/{}/status.svg", &super::SELF_BASE_URL as &str, repo.path.site, repo.path.qual.as_ref(), repo.path.name.as_ref()));
                                 }
                             }
                         }

src/server/views/html/status.rs

@@ -127,9 +127,11 @@ fn get_site_icon(site: &RepoSite) -> (FaType, &'static str) {
         RepoSite::Github => (FaType::Brands, "github"),
         RepoSite::Gitlab => (FaType::Brands, "gitlab"),
         RepoSite::Bitbucket => (FaType::Brands, "bitbucket"),
-        // FIXME: There is no brands/{sourcehut, codeberg} icon, so just use a
+        // FIXME: There is no brands/{sourcehut, codeberg, gitea} icon, so just use a
         // regular circle which looks close enough.
-        RepoSite::Sourcehut | RepoSite::Codeberg => (FaType::Regular, "circle"),
+        RepoSite::Sourcehut | RepoSite::Codeberg | RepoSite::Gitea(_) => {
+            (FaType::Regular, "circle")
+        }
     }
 }
 
@@ -334,7 +336,7 @@ fn render_success(
     let self_path = match subject_path {
         SubjectPath::Repo(ref repo_path) => format!(
             "repo/{}/{}/{}",
-            repo_path.site.as_ref(),
+            repo_path.site,
             repo_path.qual.as_ref(),
             repo_path.name.as_ref()
         ),