forked from nostr/notecrumbs
initial html page for notes
This commit is contained in:
William Casarin
parent
b9a101a5c2
commit
777a644e4d
137
src/main.rs
137
src/main.rs
@ -8,10 +8,12 @@ use hyper::service::service_fn;
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use hyper::{Request, Response, StatusCode};
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use hyper_util::rt::TokioIo;
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use log::{debug, info};
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use std::io::Write;
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use std::sync::Arc;
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use tokio::net::TcpListener;
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use crate::error::Error;
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use crate::render::RenderData;
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use nostr_sdk::prelude::*;
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use nostrdb::{Config, Ndb};
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use std::time::Duration;
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@ -94,11 +96,127 @@ pub async fn find_note(app: &Notecrumbs, nip19: &Nip19) -> Result<FindNoteResult
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}
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}
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#[inline]
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pub fn floor_char_boundary(s: &str, index: usize) -> usize {
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if index >= s.len() {
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s.len()
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} else {
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let lower_bound = index.saturating_sub(3);
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let new_index = s.as_bytes()[lower_bound..=index]
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.iter()
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.rposition(|b| is_utf8_char_boundary(*b));
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// SAFETY: we know that the character boundary will be within four bytes
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unsafe { lower_bound + new_index.unwrap_unchecked() }
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}
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}
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#[inline]
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fn is_utf8_char_boundary(c: u8) -> bool {
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// This is bit magic equivalent to: b < 128 || b >= 192
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(c as i8) >= -0x40
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}
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fn abbreviate<'a>(text: &'a str, len: usize) -> &'a str {
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let closest = floor_char_boundary(text, len);
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&text[..closest]
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}
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fn serve_profile_html(
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app: &Notecrumbs,
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nip: &Nip19,
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profile: &render::ProfileRenderData,
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r: Request<hyper::body::Incoming>,
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) -> Result<Response<Full<Bytes>>, Error> {
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let mut data = Vec::new();
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write!(data, "TODO: profile pages\n");
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Ok(Response::builder()
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.header(header::CONTENT_TYPE, "text/html")
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.status(StatusCode::OK)
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.body(Full::new(Bytes::from(data)))?)
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}
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fn serve_note_html(
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app: &Notecrumbs,
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nip19: &Nip19,
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note: &render::NoteRenderData,
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r: Request<hyper::body::Incoming>,
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) -> Result<Response<Full<Bytes>>, Error> {
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let mut data = Vec::new();
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// indices
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//
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// 0: name
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// 1: abbreviated description
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// 2: hostname
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// 3: bech32 entity
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// 4: Full content
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let hostname = "https://damus.io";
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let abbrev_content = abbreviate(¬e.note.content, 20);
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let content = ¬e.note.content;
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write!(
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data,
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r#"
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<html>
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<head>
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<title>{0}: {1}</title>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<meta charset="UTF-8">
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<meta property="og:title" content="{0}"/>
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<meta property="og:description" content="{1}"/>
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<meta property="og:image" content="{2}/{3}.png"/>
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<meta property="og:url" content="{2}/{3}"/>
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<meta name="og:type" content="website"/>
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<meta name="twitter:card" content="summary"/>
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<meta name="twitter:image:src" content="{2}/{3}.png" />
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<meta name="twitter:site" content="@damusapp" />
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<meta name="twitter:card" content="summary_large_image" />
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<meta name="twitter:title" content="{0}: {1}" />
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<meta name="twitter:description" content="{4}" />
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<meta property="og:image:alt" content="{0}: {1}" />
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<meta property="og:image:width" content="1200" />
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<meta property="og:image:height" content="630" />
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<meta property="og:site_name" content="Damus" />
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<meta property="og:type" content="object" />
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<meta property="og:title" content="{0}: {1}" />
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<meta property="og:url" content="{2}/{3}" />
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<meta property="og:description" content="{4}" />
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</head>
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<body>
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<h3>Note!</h3>
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<div class="note">
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<div class="note-content">{4}</div>
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</div>
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</body>
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</html>
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"#,
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note.profile.name,
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abbrev_content,
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hostname,
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nip19.to_bech32().unwrap(),
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content
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);
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Ok(Response::builder()
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.header(header::CONTENT_TYPE, "text/html")
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.status(StatusCode::OK)
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.body(Full::new(Bytes::from(data)))?)
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}
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async fn serve(
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app: &Notecrumbs,
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r: Request<hyper::body::Incoming>,
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) -> Result<Response<Full<Bytes>>, Error> {
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let nip19 = match Nip19::from_bech32(&r.uri().to_string()[1..]) {
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let is_png = r.uri().path().ends_with(".png");
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let until = if is_png { 4 } else { 0 };
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let path_len = r.uri().path().len();
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let nip19 = match Nip19::from_bech32(&r.uri().path()[1..path_len - until]) {
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Ok(nip19) => nip19,
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Err(_) => {
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return Ok(Response::builder()
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@ -122,12 +240,19 @@ async fn serve(
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// fetch extra data if we are missing it
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let render_data = partial_render_data.complete(&app, &nip19).await;
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let data = render::render_note(&app, &render_data);
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if is_png {
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let data = render::render_note(&app, &render_data);
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Ok(Response::builder()
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.header(header::CONTENT_TYPE, "image/png")
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.status(StatusCode::OK)
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.body(Full::new(Bytes::from(data)))?)
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Ok(Response::builder()
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.header(header::CONTENT_TYPE, "image/png")
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.status(StatusCode::OK)
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.body(Full::new(Bytes::from(data)))?)
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} else {
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match render_data {
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RenderData::Note(note_rd) => serve_note_html(app, &nip19, ¬e_rd, r),
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RenderData::Profile(profile_rd) => serve_profile_html(app, &nip19, &profile_rd, r),
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}
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}
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}
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fn get_env_timeout() -> Duration {
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@ -18,24 +18,24 @@ impl ProfileRenderData {
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#[derive(Debug, Clone)]
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pub struct NoteData {
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content: String,
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pub content: String,
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}
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pub struct ProfileRenderData {
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name: String,
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display_name: Option<String>,
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about: String,
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pfp: egui::ImageData,
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pub name: String,
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pub display_name: Option<String>,
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pub about: String,
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pub pfp: egui::ImageData,
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}
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pub struct NoteRenderData {
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note: NoteData,
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profile: ProfileRenderData,
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pub note: NoteData,
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pub profile: ProfileRenderData,
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}
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pub struct PartialNoteRenderData {
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note: Option<NoteData>,
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profile: Option<ProfileRenderData>,
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pub note: Option<NoteData>,
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pub profile: Option<ProfileRenderData>,
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}
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pub enum PartialRenderData {
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