Release 0.3.20

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Y42TyF8Zu7NGRR2893vNcZ

Cargo.lock

@@ -2948,7 +2948,7 @@ dependencies = [
 
 [[package]]
 name = "portal"
-version = "0.3.18"
+version = "0.3.20"
 dependencies = [
  "anyhow",
  "arc-swap",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "portal"
-version = "0.3.18"
+version = "0.3.20"
 edition = "2021"
 
 [lib]

src/content.rs

@@ -199,6 +199,18 @@ pub fn render_inline_markdown(text: &str) -> String {
             in_link -= 1;
             None
         }
+        // Images take the same gate as links: https or same-origin
+        // only - no data:, no plain http.
+        Event::Start(Tag::Image { dest_url, .. })
+            if !(dest_url.starts_with("https://") || dest_url.starts_with('/')) =>
+        {
+            in_link += 1;
+            None
+        }
+        Event::End(TagEnd::Image) if in_link > 0 => {
+            in_link -= 1;
+            None
+        }
         other => Some(other),
     });
     let mut out = String::new();
@@ -2026,6 +2038,15 @@ alternatives:
     fn markdown_drops_html_and_unsafe_links() {
         assert_eq!(render_inline_markdown("x <script>y</script> z"), "x y z");
         assert_eq!(render_inline_markdown("[bad](javascript:alert(1))"), "bad");
+        assert_eq!(
+            render_inline_markdown("![site](https://x.no/a.jpg)"),
+            "<img src=\"https://x.no/a.jpg\" alt=\"site\" />"
+        );
+        assert_eq!(render_inline_markdown("![x](data:image/png;base64,AA)"), "");
+        assert_eq!(
+            render_inline_markdown("![local](/images/a.jpg)"),
+            "<img src=\"/images/a.jpg\" alt=\"local\" />"
+        );
         assert_eq!(render_inline_markdown("[ok](/shape)"), "<a href=\"/shape\">ok</a>");
         assert_eq!(render_inline_markdown("[mail](mailto:bl@uhhm.no)"), "<a href=\"mailto:bl@uhhm.no\">mail</a>");
     }

src/server/oidc.rs

@@ -33,6 +33,13 @@ type OidcClient = CoreClient<
 >;
 
 pub struct Oidc {
+    /// `None` when `KANIDM_URL` is unset: a content-only instance with
+    /// sign-in disabled - auth routes answer 503, everything public
+    /// renders as usual.
+    inner: Option<OidcInner>,
+}
+
+struct OidcInner {
     client: OidcClient,
     http: openidconnect::reqwest::Client,
 }
@@ -45,7 +52,13 @@ const REDIRECT_KEY: &str = "oidc_post_login_redirect";
 impl Oidc {
     /// Discovers the provider and builds the client from environment:
     /// `KANIDM_URL`, `OAUTH2_CLIENT_ID`, `OAUTH2_CLIENT_SECRET`, `PUBLIC_URL`.
+    /// With `KANIDM_URL` unset, sign-in is disabled instead of fatal -
+    /// the shape of a public content instance without a review desk.
     pub async fn from_env() -> anyhow::Result<Self> {
+        if std::env::var("KANIDM_URL").is_err() {
+            tracing::warn!("KANIDM_URL not set - sign-in disabled on this instance");
+            return Ok(Self { inner: None });
+        }
         let kanidm_url = require_env("KANIDM_URL")?;
         let client_id = require_env("OAUTH2_CLIENT_ID")?;
         let client_secret = require_env("OAUTH2_CLIENT_SECRET")?;
@@ -75,7 +88,16 @@ impl Oidc {
         )
         .set_redirect_uri(redirect);
 
-        Ok(Self { client, http })
+        Ok(Self {
+            inner: Some(OidcInner { client, http }),
+        })
+    }
+
+    fn configured(&self) -> Result<&OidcInner, HandlerError> {
+        self.inner.as_ref().ok_or((
+            StatusCode::SERVICE_UNAVAILABLE,
+            "sign-in is not configured on this instance".to_string(),
+        ))
     }
 }
 
@@ -118,10 +140,10 @@ pub async fn login(
         session.insert(REDIRECT_KEY, redirect).await.map_err(internal)?;
     }
 
+    let oidc = state.oidc.configured()?;
     let (pkce_challenge, pkce_verifier) = PkceCodeChallenge::new_random_sha256();
 
-    let (auth_url, csrf_state, nonce) = state
-        .oidc
+    let (auth_url, csrf_state, nonce) = oidc
         .client
         .authorize_url(
             CoreAuthenticationFlow::AuthorizationCode,
@@ -182,7 +204,7 @@ pub async fn callback(
         ));
     }
 
-    let oidc = &state.oidc;
+    let oidc = state.oidc.configured()?;
     let token_response = oidc
         .client
         .exchange_code(AuthorizationCode::new(params.code))

style/main.css

@@ -536,6 +536,18 @@ main.not-found {
   color: var(--accent);
 }
 
+/* images inside markdown descriptions: full-width figures in the
+   card's flow, framed like the rest of the press sheet */
+.alt-description img,
+.item-card-description img,
+.feature p img {
+  display: block;
+  width: 100%;
+  margin: 0.6rem 0 0.2rem;
+  border-radius: 0.5rem;
+  border: 0.06rem solid var(--line);
+}
+
 .alt-description code,
 .feature p code {
   font-size: 0.9em;