This is 0.4.0

Cargo.lock

@@ -293,7 +293,7 @@ checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
 
 [[package]]
 name = "corobel"
-version = "0.2.2"
+version = "0.4.0"
 dependencies = [
  "atom_syndication",
  "chrono",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "corobel"
-version = "0.2.2"
+version = "0.4.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

README.md

@@ -16,8 +16,10 @@ ports to use for development and deployment.
     - [ ] Handle redirects
 - [x] RSS feeds for projects
 - [x] Index page explaining what's going on
+- [ ] More robust parsing (defaults for all!)
 - [ ] RSS feeds for tags
 - [x] Atom Extension pagination support
+- [x] Disable pagination and just go for it lmao
 - [ ] Read More support
 - [ ] Dublin Core support
 - [ ] Media Envelope support

samples/cohost/api/v1/empty_posts_age.json

@@ -0,0 +1 @@
+{"nItems":0,"nPages":0,"items":[],"_links":[{"href":"/api/v1/project/vogon","rel":"project","type":"GET"},{"href":"/api/v1/project/vogon/posts?page=998","rel":"prev","type":"GET"}]}

src/cohost_posts.rs

@@ -1,5 +1,5 @@
 use chrono::{DateTime, Utc};
-use serde::Deserialize;
+use serde::{Deserialize, Deserializer};
 
 pub fn cohost_posts_api_url(project: impl AsRef<str>, page: u64) -> String {
     format!(
@@ -11,7 +11,7 @@ pub fn cohost_posts_api_url(project: impl AsRef<str>, page: u64) -> String {
 
 // Cohost doesn't give us Next links ("rel: next") for further pages, so we'll have to ALWAYS populate the rel=next field
 
-#[derive(Deserialize)]
+#[derive(Debug, Deserialize)]
 pub struct CohostPostsPage {
     #[serde(rename = "nItems")]
     pub number_items: usize,
@@ -22,18 +22,27 @@ pub struct CohostPostsPage {
     pub links: Vec<CohostPostLink>,
 }
 
-#[derive(Deserialize)]
+#[derive(Debug, Deserialize)]
 pub struct CohostPost {
     #[serde(rename = "postId")]
     pub id: u64,
+    #[serde(deserialize_with = "deserialize_null_default", default)]
     pub headline: String,
     #[serde(rename = "publishedAt")]
     pub published_at: DateTime<Utc>,
     pub cws: Vec<String>,
     pub tags: Vec<String>,
-    #[serde(rename = "plainTextBody")]
+    #[serde(
+        rename = "plainTextBody",
+        deserialize_with = "deserialize_null_default",
+        default
+    )]
     pub plain_body: String,
-    #[serde(rename = "singlePostPageUrl")]
+    #[serde(
+        rename = "singlePostPageUrl",
+        deserialize_with = "deserialize_null_default",
+        default
+    )]
     pub url: String,
     #[serde(rename = "postingProject")]
     pub poster: CohostPostingProject,
@@ -41,26 +50,49 @@ pub struct CohostPost {
     pub share_tree: Vec<CohostPost>,
 }
 
-#[derive(Deserialize)]
+#[derive(Debug, Deserialize)]
 pub struct CohostPostingProject {
     #[serde(rename = "projectId")]
     pub id: u64,
+    #[serde(deserialize_with = "deserialize_null_default", default)]
     pub handle: String,
-    #[serde(rename = "displayName")]
+    #[serde(
+        rename = "displayName",
+        deserialize_with = "deserialize_null_default",
+        default
+    )]
     pub display_name: String,
+    #[serde(deserialize_with = "deserialize_null_default", default)]
     pub dek: String,
+    #[serde(deserialize_with = "deserialize_null_default", default)]
     pub description: String,
+    #[serde(deserialize_with = "deserialize_null_default", default)]
     pub pronouns: String,
 }
 
-#[derive(Deserialize)]
+#[derive(Debug, Deserialize)]
 pub struct CohostPostLink {
+    #[serde(deserialize_with = "deserialize_null_default", default)]
     pub href: String,
+    #[serde(deserialize_with = "deserialize_null_default", default)]
     pub rel: String,
-    #[serde(rename = "type")]
+    #[serde(
+        rename = "type",
+        deserialize_with = "deserialize_null_default",
+        default
+    )]
     pub t_type: String,
 }
 
+fn deserialize_null_default<'de, D, T>(deserializer: D) -> Result<T, D::Error>
+where
+    T: Default + Deserialize<'de>,
+    D: Deserializer<'de>,
+{
+    let opt = Option::deserialize(deserializer)?;
+    Ok(opt.unwrap_or_default())
+}
+
 #[test]
 fn test_deserialize() -> Result<(), Box<dyn std::error::Error>> {
     let post_page_json = include_str!("../samples/cohost/api/v1/project_posts.json");
@@ -71,3 +103,19 @@ fn test_deserialize() -> Result<(), Box<dyn std::error::Error>> {
     assert_eq!(post.poster.id, 32693);
     Ok(())
 }
+
+#[test]
+fn test_deserialize_weird() -> Result<(), Box<dyn std::error::Error>> {
+    let post_page_json = include_str!("../samples/cohost/api/v1/vogon_pathological.json");
+    let _post_page_actual: CohostPostsPage = serde_json::from_str(post_page_json)?;
+    Ok(())
+}
+
+#[test]
+fn test_deserialize_empty() -> Result<(), Box<dyn std::error::Error>> {
+    let post_page_json = include_str!("../samples/cohost/api/v1/empty_posts_age.json");
+    let post_page_actual: CohostPostsPage = serde_json::from_str(post_page_json)?;
+    println!("{:?}", post_page_actual);
+    assert!(post_page_actual.items.is_empty());
+    Ok(())
+}

src/main.rs

@@ -12,7 +12,7 @@ mod cohost_posts;
 mod syndication;
 mod webfinger;
 use cohost_account::{CohostAccount, COHOST_ACCOUNT_API_URL};
-use cohost_posts::{cohost_posts_api_url, CohostPostsPage};
+use cohost_posts::{cohost_posts_api_url, CohostPost, CohostPostsPage};
 use webfinger::CohostWebfingerResource;
 
 #[derive(Parser, Debug)]
@@ -46,6 +46,12 @@ fn index() -> RawHtml<&'static str> {
     RawHtml(include_str!("../static/index.html"))
 }
 
+#[derive(Responder)]
+#[response(content_type = "text/markdown")]
+struct MdResponse {
+    inner: String,
+}
+
 #[derive(Responder)]
 #[response(content_type = "application/rss+xml")]
 struct RssResponse {
@@ -61,149 +67,182 @@ enum ErrorResponse {
     InternalError(String),
 }
 
-#[get("/<project>/feed.rss?<page>")]
-async fn syndication_rss_route(
-    project: &str,
-    page: Option<u64>,
-) -> Result<RssResponse, ErrorResponse> {
-    let page = page.unwrap_or(0);
-    let project_url = format!("{}{}", COHOST_ACCOUNT_API_URL, project);
-    let posts_url = cohost_posts_api_url(project, page);
+async fn get_post_from_page(
+    client: &mut Client,
+    project_id: &str,
+    post_id: u64,
+) -> Result<CohostPost, ErrorResponse> {
+    let mut page = 0;
+    loop {
+        let new_page = get_page_data(client, project_id, page).await?;
+        if new_page.items.is_empty() {
+            // Once there are no posts, we're done.
+            return Err(ErrorResponse::NotFound(
+                "End of posts reached, ID not found.".into(),
+            ));
+        } else {
+            page += 1;
+            if let Some(post) = new_page.items.into_iter().find(|post| post.id == post_id) {
+                return Ok(post);
+            }
+        }
+    }
+}
 
-    let client = match Client::builder().user_agent(user_agent()).build() {
-        Ok(v) => v,
-        Err(e) => {
-            let err = format!("Couldn't build a reqwest client: {:?}", e);
-            eprintln!("{}", err);
-            return Err(ErrorResponse::InternalError(err));
+async fn get_full_post_data(
+    client: &mut Client,
+    project_id: &str,
+) -> Result<CohostPostsPage, ErrorResponse> {
+    let mut page = 0;
+    let mut merged_page = get_page_data(client, project_id, page).await?;
+    loop {
+        let mut new_page = get_page_data(client, project_id, page).await?;
+        if new_page.items.is_empty() {
+            // Once there are no posts, we're done.
+            break;
+        } else {
+            page += 1;
+            merged_page.number_items += new_page.number_items;
+            merged_page.items.append(&mut new_page.items);
         }
-    };
+    }
+    Ok(merged_page)
+}
 
-    eprintln!("making request to {}", project_url);
-    let project_data: CohostAccount = match client.get(project_url).send().await {
+async fn get_page_data(
+    client: &mut Client,
+    project_id: &str,
+    page: u64,
+) -> Result<CohostPostsPage, ErrorResponse> {
+    let posts_url = cohost_posts_api_url(project_id, page);
+    eprintln!("making request to {}", posts_url);
+    match client.get(posts_url).send().await {
         Ok(v) => match v.status() {
-            StatusCode::OK => match v.json::<CohostAccount>().await {
-                Ok(a) => a,
+            StatusCode::OK => match v.json::<CohostPostsPage>().await {
+                Ok(page_data) => Ok(page_data),
                 Err(e) => {
-                    let err = format!("Couldn't deserialize Cohost project '{}': {:?}", project, e);
+                    let err = format!(
+                        "Couldn't deserialize Cohost posts page for '{}': {:?}",
+                        project_id, e
+                    );
                     eprintln!("{}", err);
                     return Err(ErrorResponse::InternalError(err));
                 }
             },
             // TODO NORA: Handle possible redirects
             s => {
-                let err = format!(
-                    "Didn't receive status code 200 for Cohost project '{}'; got {:?} instead.",
-                    project, s
-                );
+                let err = format!("Didn't receive status code 200 for posts for Cohost project '{}'; got {:?} instead.", page, s);
                 eprintln!("{}", err);
                 return Err(ErrorResponse::NotFound(err));
             }
         },
         Err(e) => {
             let err = format!(
-                "Error making request to Cohost for project '{}': {:?}",
-                project, e
+                "Error making request to Cohost for posts for project '{}': {:?}",
+                project_id, e
             );
             eprintln!("{}", err);
             return Err(ErrorResponse::InternalError(err));
         }
-    };
+    }
+}
 
-    eprintln!("making request to {}", posts_url);
-    match client.get(posts_url).send().await {
+#[get("/<project>/feed.rss")]
+async fn syndication_rss_route(project: &str) -> Result<RssResponse, ErrorResponse> {
+    let mut client = get_client()?;
+
+    let project_data = get_project_data(&mut client, project).await?;
+    let page_data = get_full_post_data(&mut client, project).await?;
+    Ok(RssResponse {
+        inner: syndication::channel_for_posts_page(project, project_data, page_data).to_string(),
+    })
+}
+
+#[get("/<project>/<id>")]
+async fn post_md_route(project: &str, id: u64) -> Result<MdResponse, ErrorResponse> {
+    let mut client = get_client()?;
+
+    let _project_data = get_project_data(&mut client, project).await?;
+    let post_data = get_post_from_page(&mut client, project, id).await?;
+    Ok(MdResponse {
+        inner: post_data.plain_body,
+    })
+}
+
+async fn get_project_data(
+    client: &mut Client,
+    project_id: &str,
+) -> Result<CohostAccount, ErrorResponse> {
+    let project_url = format!("{}{}", COHOST_ACCOUNT_API_URL, project_id);
+    eprintln!("making request to {}", project_url);
+    match client.get(project_url).send().await {
         Ok(v) => match v.status() {
-            StatusCode::OK => match v.json::<CohostPostsPage>().await {
-                Ok(page_data) => {
-                    return Ok(RssResponse {
-                        inner: syndication::channel_for_posts_page(
-                            project,
-                            page,
-                            project_data,
-                            page_data,
-                        )
-                        .to_string(),
-                    });
-                }
+            StatusCode::OK => match v.json::<CohostAccount>().await {
+                Ok(a) => Ok(a),
                 Err(e) => {
                     let err = format!(
-                        "Couldn't deserialize Cohost posts page for '{}': {:?}",
-                        project, e
+                        "Couldn't deserialize Cohost project '{}': {:?}",
+                        project_id, e
                     );
                     eprintln!("{}", err);
-                    return Err(ErrorResponse::InternalError(err));
+                    Err(ErrorResponse::InternalError(err))
                 }
             },
             // TODO NORA: Handle possible redirects
             s => {
-                let err = format!("Didn't receive status code 200 for posts for Cohost project '{}'; got {:?} instead.", page, s);
+                let err = format!(
+                    "Didn't receive status code 200 for Cohost project '{}'; got {:?} instead.",
+                    project_id, s
+                );
                 eprintln!("{}", err);
-                return Err(ErrorResponse::NotFound(err));
+                Err(ErrorResponse::NotFound(err))
             }
         },
         Err(e) => {
             let err = format!(
-                "Error making request to Cohost for posts for project '{}': {:?}",
-                project, e
+                "Error making request to Cohost for project '{}': {:?}",
+                project_id, e
             );
             eprintln!("{}", err);
-            return Err(ErrorResponse::InternalError(err));
+            Err(ErrorResponse::InternalError(err))
         }
-    };
+    }
+}
+
+fn get_client() -> Result<Client, ErrorResponse> {
+    match Client::builder().user_agent(user_agent()).build() {
+        Ok(v) => Ok(v),
+        Err(e) => {
+            let err = format!("Couldn't build a reqwest client: {:?}", e);
+            eprintln!("{}", err);
+            Err(ErrorResponse::InternalError(err))
+        }
+    }
 }
 
 #[get("/.well-known/webfinger?<params..>")]
-async fn webfinger_route(params: HashMap<String, String>) -> Option<Json<CohostWebfingerResource>> {
+async fn webfinger_route(
+    params: HashMap<String, String>,
+) -> Result<Json<CohostWebfingerResource>, ErrorResponse> {
     if params.len() != 1 {
-        eprintln!(
+        let err = format!(
             "Too may or too few parameters. Expected 1, got {}",
             params.len()
         );
-        return None;
+        eprintln!("{}", err);
+        return Err(ErrorResponse::InternalError(err));
     }
-    let client = match Client::builder().user_agent(user_agent()).build() {
-        Ok(v) => v,
-        Err(e) => {
-            let err = format!("Couldn't build a reqwest client: {:?}", e);
-            eprintln!("{}", err);
-            return None;
-        }
-    };
+    let mut client = get_client()?;
     if let Some(param) = params.iter().next() {
-        let url = format!("{}{}", COHOST_ACCOUNT_API_URL, param.0);
-        eprintln!("making request to {}", url);
-        match client.get(url).send().await {
-            Ok(v) => {
-                match v.status() {
-                    StatusCode::OK => match v.json::<CohostAccount>().await {
-                        Ok(_v) => {
-                            return Some(Json(CohostWebfingerResource::new(
-                                param.0.as_str(),
-                                &ARGS.domain,
-                                &ARGS.base_url,
-                            )));
-                        }
-                        Err(e) => {
-                            eprintln!("Couldn't deserialize Cohost project '{}': {:?}", param.0, e);
-                        }
-                    },
-                    // TODO NORA: Handle possible redirects
-                    s => {
-                        eprintln!("Didn't receive status code 200 for Cohost project '{}'; got {:?} instead.", param.0, s);
-                        return None;
-                    }
-                }
-            }
-            Err(e) => {
-                eprintln!(
-                    "Error making request to Cohost for project '{}': {:?}",
-                    param.0, e
-                );
-                return None;
-            }
-        };
+        let _project_data = get_project_data(&mut client, param.0.as_str()).await?;
+        Ok(Json(CohostWebfingerResource::new(
+            param.0.as_str(),
+            &ARGS.domain,
+            &ARGS.base_url,
+        )))
+    } else {
+        Err(ErrorResponse::NotFound("No project ID provided.".into()))
     }
-    None
 }
 
 #[rocket::main]
@@ -213,7 +252,7 @@ async fn main() -> Result<(), Box<dyn Error>> {
     let _rocket = rocket::build()
         .mount(
             &ARGS.base_url,
-            routes![index, webfinger_route, syndication_rss_route],
+            routes![index, webfinger_route, syndication_rss_route, post_md_route],
         )
         .ignite()
         .await?

src/syndication.rs

@@ -20,7 +20,6 @@ fn rel_link_for(rel: &str, project_name: &str, page_number: u64) -> Link {
 
 pub fn channel_for_posts_page(
     project_name: impl AsRef<str>,
-    page_number: u64,
     project: CohostAccount,
     mut page: CohostPostsPage,
 ) -> Channel {
@@ -34,23 +33,13 @@ pub fn channel_for_posts_page(
             env!("CARGO_CRATE_NAME"),
             env!("CARGO_PKG_VERSION")
         )))
-        .link(format!(
-            "https://cohost.org/{}?page={}",
-            project_name, page_number
-        ));
+        .link(format!("https://cohost.org/{}", project_name,));
 
     let mut atom = AtomExtensionBuilder::default();
-    let mut links = vec![
-        rel_link_for("self", project_name, page_number),
+    let links = vec![
+        rel_link_for("self", project_name, 0),
         rel_link_for("first", project_name, 0),
     ];
-    if page_number > 0 {
-        links.push(rel_link_for("previous", project_name, page_number - 1));
-    }
-    if page.number_items > 0 {
-        // Cohost API is wrong about the pagination so we can only guess. If there are posts, there might be more posts.
-        links.push(rel_link_for("next", project_name, page_number + 1));
-    }
     atom.links(links);
 
     builder.atom_ext(Some(atom.build()));

static/index.html

@@ -30,6 +30,11 @@
         Go to <code>/project_name/feed.rss</code> to get a feed for a project.
         For example, <a href="/noracodes/feed.rss"><code>/noracodes/feed.rss</code></a> will give you the feed for my page.
     </p>
+    <p>
+        You can also get a particular post's original plain-text body at <code>/project_name/post_id/</code>, such as
+        <a href="/noracodes/169186/"><code>/noracodes/169186/</code></a>. (In a Cohost post URL, the ID is the numerical part after <code>/post/</code>.
+        For instance, in <code>https://cohost.org/noracodes/post/169186-october-update</code>, the ID is "169186".)
+    </p>
     <p>
         Webfinger resources for accounts are provided at the Webfinger well-known URL <code>/.well-known/webfinger?project_name</code>.
     </p>