From 90513d4007a5d37599d8f98ce142bf04eeb73379 Mon Sep 17 00:00:00 2001
From: kirbylife <kirbylife@protonmail.com>
Date: Tue, 25 Jun 2024 20:48:36 -0600
Subject: [PATCH] Initial support to Gemini protocol

---
 Cargo.toml                      |  4 ++
 cert.pem                        | 31 +++++++++++
 key.pem                         | 54 +++++++++++++++++++
 src/bin/gemini.rs               | 86 ++++++++++++++++++++++++++++++
 src/lib.rs                      | 12 +++++
 src/main.rs                     | 11 ++--
 src/misc.rs                     | 92 +++++++++++++++++++++++++++++++++
 templates/gemini/index.gmi.tera | 24 +++++++++
 templates/gemini/post.gmi.tera  |  7 +++
 9 files changed, 314 insertions(+), 7 deletions(-)
 create mode 100644 cert.pem
 create mode 100644 key.pem
 create mode 100644 src/bin/gemini.rs
 create mode 100644 src/lib.rs
 create mode 100644 templates/gemini/index.gmi.tera
 create mode 100644 templates/gemini/post.gmi.tera

diff --git a/Cargo.toml b/Cargo.toml
index 7f22b92..c7fac3c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,3 +16,7 @@ comrak = "0.24.1"
 tera = "1.19.1"
 isbot = "0.1.3"
 once_cell = "1.19.0"
+windmark = { version = "0.3.10", features = ["response-macros", "logger"] }
+tokio = { version = "1.26.0", features = ["full"] }
+md2gemtext = "0.1.0"
+glob = "0.3.1"
diff --git a/cert.pem b/cert.pem
new file mode 100644
index 0000000..4364f46
--- /dev/null
+++ b/cert.pem
@@ -0,0 +1,31 @@
+-----BEGIN CERTIFICATE-----
+MIIFazCCA1OgAwIBAgIUfrrLPPEvujX8T/aKVSwJKr1E00gwDQYJKoZIhvcNAQEL
+BQAwRTELMAkGA1UEBhMCQVUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoM
+GEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDAeFw0yNDA2MjUwMTQyNThaFw0yNDA3
+MjUwMTQyNThaMEUxCzAJBgNVBAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEw
+HwYDVQQKDBhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQwggIiMA0GCSqGSIb3DQEB
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+mISFunE7H258lrXl6VHvkBVwvUlppWOEtP+TxoxZuxpZplV0HQUArEAAtC0+JCkG
+up0nrNElgu+7qgX3Qm5ufU/p1lqEozPt3mvUV5CsZqKm2CjmtzrFyxEHC/UpnEhX
+dzxOTZ6ZBjoBwwBsG2PvAO+wu438EeBcfwzKlP20cX1s2Bq/CjzZNlxAeK8iCvf2
+TbfuyojwIcU7ceLIXxZjBt5UmaR2w5nYCRxKWpNHxGoPGZFfSET2XbvZy4WET6bv
+a7WNXgSiE866qMrw0u57tiI1Zmp16sV5oovdSdpZjjzHNO7EtmryVANIkmNvQgLl
+WyvFTgr5Q/GISBS4cayyiIwMn+oMfKaSW/kVspT8+QQi+crfr/Qv7s7If0yTKuI=
+-----END CERTIFICATE-----
diff --git a/key.pem b/key.pem
new file mode 100644
index 0000000..6a028ac
--- /dev/null
+++ b/key.pem
@@ -0,0 +1,54 @@
+-----BEGIN ENCRYPTED PRIVATE KEY-----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+jKk4UZQ40HUK5MOiTerf5M8hTMnxBlaV7zlbCu959G7G0QZPL7eJiw5GUM98L+EA
+Yk0a971ZGt83C/OfYKhqOotICsr3gcW5pY20lwpUHVFeLZOKA/OcvYpibCFj/sgp
+l/hgn6KOW3I/2kHYeqG5vl+t+jYNrZngML6Cz/9vAdTcl7X7VqcBS8TlTZ6KK7B8
+Fx3iMjRL8/l77TlwPHoQxe9FUTmv2u4govWiLcDk3CUhQfatJURPZer1g2kh6FYF
+mwFIH5TpX3CFJXdlZybNcA==
+-----END ENCRYPTED PRIVATE KEY-----
diff --git a/src/bin/gemini.rs b/src/bin/gemini.rs
new file mode 100644
index 0000000..b0d3f23
--- /dev/null
+++ b/src/bin/gemini.rs
@@ -0,0 +1,86 @@
+use codigocomentado::*;
+
+use controllers::posts;
+use dotenv::dotenv;
+use misc::{gen_title, replace_tables};
+use tera::Tera;
+use tokio::sync::OnceCell;
+
+static TERA: OnceCell<Tera> = OnceCell::const_new();
+
+async fn render<S: AsRef<str>>(name: S, context: &tera::Context) -> Result<String, ()> {
+    let tera = TERA
+        .get_or_init(|| async {
+            let mut tera = Tera::default();
+            for path in glob::glob("templates/gemini/*").unwrap().flatten() {
+                let raw_path = path.clone();
+                let filename = raw_path
+                    .file_name()
+                    .unwrap() // This should be safe (?
+                    .to_str()
+                    .unwrap() // ._.?
+                    .split('.')
+                    .next();
+                tera.add_template_file(path, filename).unwrap()
+            }
+            tera
+        })
+        .await;
+    tera.render(name.as_ref(), context).map_err(|_| ())
+}
+
+#[windmark::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    dotenv().ok();
+
+    windmark::router::Router::new()
+        .set_private_key_file("key.pem")
+        .set_certificate_file("cert.pem")
+        .set_languages(["es"])
+        .enable_default_logger(true)
+        .set_fix_path(true)
+        .mount("/", move |_| {
+            let (posts, _) = posts::get_posts(None);
+            let mut context = tera::Context::new();
+
+            context.insert("title", &gen_title());
+            context.insert("posts", &posts);
+
+            async move {
+                windmark::response::Response::success(render("index", &context).await.unwrap())
+            }
+        })
+        .mount("/post/:title", |request| {
+            let title_splited: Vec<&str> = request
+                .parameters
+                .get("title")
+                // This should be safe because its requires the parameter to enter to the route
+                .unwrap()
+                .split('-')
+                .collect();
+            let id = title_splited.last().unwrap().parse().unwrap_or(-1);
+            async move {
+                let result = match posts::get_post(id) {
+                    Ok(post) => {
+                        let mut context = tera::Context::new();
+                        let content = replace_tables(post.content)
+                            .replace("<pre>", "```")
+                            .replace("</pre>", "```");
+
+                        context.insert("header", &gen_title());
+                        context.insert("title", &post.title);
+                        context.insert("created_at", &post.created_at);
+                        context.insert("content", &content);
+                        render("post", &context).await.unwrap()
+                    }
+                    Err(_) => "No se encontró ningún Post :c".into(),
+                };
+                windmark::response::Response::success(result)
+            }
+        })
+        .set_error_handler(|_| {
+            windmark::response::Response::permanent_failure("This route does not exist!")
+        })
+        .run()
+        .await
+}
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..fbd3a67
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,12 @@
+pub mod admin;
+pub mod contexts;
+pub mod controllers;
+pub mod misc;
+pub mod models;
+mod schema;
+
+#[macro_use]
+extern crate diesel;
+
+#[macro_use]
+extern crate rocket;
diff --git a/src/main.rs b/src/main.rs
index c177675..3a973e2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,15 +1,12 @@
-pub mod admin;
-pub mod contexts;
-pub mod controllers;
-pub mod misc;
-pub mod models;
 mod schema;
 
-#[macro_use]
-extern crate rocket;
 #[macro_use]
 extern crate diesel;
 
+#[macro_use]
+extern crate rocket;
+
+use codigocomentado::*;
 use comrak::{markdown_to_html, Options};
 use controllers::posts;
 use dotenv::dotenv;
diff --git a/src/misc.rs b/src/misc.rs
index 82db982..914294a 100644
--- a/src/misc.rs
+++ b/src/misc.rs
@@ -20,3 +20,95 @@ pub fn gen_title() -> String {
     let title = str::replace(title_fmt, "{}", "CódigoComentado");
     title.to_string()
 }
+
+pub fn ascii_table(raw_table: String) -> String {
+    let raw_table = raw_table.trim();
+    let mut new_table: Vec<Vec<Vec<String>>> = Vec::new();
+    let mut max_width: Option<Vec<usize>> = None;
+    let mut result = String::new();
+
+    for line in raw_table.lines() {
+        let items: Vec<String> = line.split('|').map(|s| s.to_string()).collect();
+        let mut new_items: Vec<Vec<String>> = vec![Vec::new(); items.len()];
+
+        if max_width.is_none() {
+            max_width = Some(vec![0; items.len()]);
+        }
+
+        for (n, item) in items.iter().enumerate() {
+            let item = item
+                .replace("<b>", "")
+                .replace("</b>", "")
+                .replace("<pre>", "")
+                .replace("</pre>", "")
+                .replace("\\", "");
+            let split_items: Vec<String> = item.split("<br>").map(|s| s.to_string()).collect();
+            new_items[n].clone_from(&split_items);
+            let max_local = split_items.iter().map(|s| s.len()).max().unwrap_or(0);
+            if let Some(ref mut mw) = max_width {
+                mw[n] = std::cmp::max(mw[n], max_local);
+            }
+        }
+
+        new_table.push(new_items);
+    }
+
+    for row in new_table {
+        let max_height = row.iter().map(|col| col.len()).max().unwrap_or(0);
+        for index in 0..(row.len() * max_height) {
+            let index_subrow = index / row.len();
+            let index_col = index % row.len();
+            let text = if let Some(col) = row.get(index_col) {
+                if let Some(&ref text) = col.get(index_subrow) {
+                    text
+                } else {
+                    &String::from("")
+                }
+            } else {
+                &String::from("")
+            };
+            let text = text.trim_end();
+            if let Some(ref mw) = max_width {
+                result.push_str(&format!(
+                    "{:width$}{}",
+                    text,
+                    if index_col < row.len() - 1 { "|" } else { "\n" },
+                    width = mw[index_col]
+                ));
+            }
+        }
+    }
+
+    format!("```\n{}\n```\n", result)
+}
+
+pub fn replace_tables(text: String) -> String {
+    let mut result = String::new();
+    let mut table: Option<String> = None;
+    let mut is_code = false;
+
+    for line in text.lines() {
+        if line.starts_with('|') & !is_code {
+            if table.is_none() {
+                table = Some(String::new());
+            }
+            if let Some(ref mut tab) = table {
+                tab.push_str(&format!("{}\n", line));
+            }
+        } else {
+            let temp = match table {
+                Some(ref tab) => {
+                    println!("raw:\n{}", tab);
+                    let new_table = ascii_table(tab.to_string());
+                    println!("formated:\n{}", new_table);
+                    table = None;
+                    new_table
+                }
+                None => line.to_string(),
+            };
+            result.push_str(&temp);
+            result.push('\n');
+        }
+    }
+    result
+}
diff --git a/templates/gemini/index.gmi.tera b/templates/gemini/index.gmi.tera
new file mode 100644
index 0000000..1dde6b8
--- /dev/null
+++ b/templates/gemini/index.gmi.tera
@@ -0,0 +1,24 @@
+# {{ title }}
+
+¡Hola!, acabas de aterrizar en mi cápsula, puedes tomar asiento donde gustes.
+Me presento, en el mundo de los internets decidí que mi apodo sería "kirbylife" y de vez en cuando me gusta escribir sobre cosas de programación y todo lo relacionado con las computadoras en general, y para hacerlo me creé un blog en la web de los hipertextos y por fin decidí a traerla a este otro espacio de internet, espero les guste lo que leen y, con un poco de suerte, le encuentren utilidad.
+
+## Artículos
+{% for post in posts %}
+=> /post/{{ post.title | slugify }}-{{ post.id }} {{ post.title }}
+{{ post.content | split(pat=" ") | slice(end=30) | join(sep=" ") | split(pat="#") | slice(end=1) | join(sep="") | replace(from="\n", to="") | trim }}...
+{% endfor %}
+
+## Info
+Este blog está escrito en el lenguaje de programación Rust, utilizando el framework Windmark, con el editor Emacs y cuenta con feeds RSS/Atom.
+=> https://blog.kirbylife.dev/feed.xml RSS
+=> https://blog.kirbylife.dev/atom.xml Atom
+
+## Contacto
+En caso de que quieran contactarme por la razón que sea, pueden hacerlo por cualquiera de estos medios:
+Correo electrónico
+* hola(at)kirbylife.dev
+Mastodon
+* @kirbylife@mstdn.mx
+Telegram
+* @kirbylife
\ No newline at end of file
diff --git a/templates/gemini/post.gmi.tera b/templates/gemini/post.gmi.tera
new file mode 100644
index 0000000..b6829bd
--- /dev/null
+++ b/templates/gemini/post.gmi.tera
@@ -0,0 +1,7 @@
+# {{ header }}
+=> / Volver al inicio
+
+# {{ title }}
+Publicado el: {{ created_at | date(format="%Y-%m-%d") }}
+
+{{ content | striptags }}