Plume/src/routes/posts.rs
2021-01-03 05:49:45 +09:00

668 lines
22 KiB
Rust

use chrono::Utc;
use heck::KebabCase;
use rocket::http::uri::Uri;
use rocket::request::LenientForm;
use rocket::response::{Flash, Redirect};
use rocket_i18n::I18n;
use std::{
borrow::Cow,
collections::{HashMap, HashSet},
time::Duration,
};
use validator::{Validate, ValidationError, ValidationErrors};
use crate::routes::{
comments::NewCommentForm, errors::ErrorPage, ContentLen, RemoteForm, RespondOrRedirect,
};
use crate::template_utils::{IntoContext, Ructe};
use plume_common::activity_pub::{broadcast, ActivityStream, ApRequest};
use plume_common::utils;
use plume_models::{
blogs::*,
comments::{Comment, CommentTree},
inbox::inbox,
instance::Instance,
medias::Media,
mentions::Mention,
post_authors::*,
posts::*,
safe_string::SafeString,
tags::*,
timeline::*,
users::User,
Error, PlumeRocket,
};
#[get("/~/<blog>/<slug>?<responding_to>", rank = 4)]
pub fn details(
blog: String,
slug: String,
responding_to: Option<i32>,
rockets: PlumeRocket,
) -> Result<Ructe, ErrorPage> {
let conn = &*rockets.conn;
let user = rockets.user.clone();
let blog = Blog::find_by_fqn(&rockets, &blog)?;
let post = Post::find_by_slug(&*conn, &slug, blog.id)?;
if !(post.published
|| post
.get_authors(&*conn)?
.into_iter()
.any(|a| a.id == user.clone().map(|u| u.id).unwrap_or(0)))
{
return Ok(render!(errors::not_authorized(
&rockets.to_context(),
i18n!(rockets.intl.catalog, "This post isn't published yet.")
)));
}
let comments = CommentTree::from_post(&*conn, &post, user.as_ref())?;
let previous = responding_to.and_then(|r| Comment::get(&*conn, r).ok());
Ok(render!(posts::details(
&rockets.to_context(),
post.clone(),
blog,
&NewCommentForm {
warning: previous.clone().map(|p| p.spoiler_text).unwrap_or_default(),
content: previous.clone().and_then(|p| Some(format!(
"@{} {}",
p.get_author(&*conn).ok()?.fqn,
Mention::list_for_comment(&*conn, p.id).ok()?
.into_iter()
.filter_map(|m| {
let user = user.clone();
if let Ok(mentioned) = m.get_mentioned(&*conn) {
if user.is_none() || mentioned.id != user.expect("posts::details_response: user error while listing mentions").id {
Some(format!("@{}", mentioned.fqn))
} else {
None
}
} else {
None
}
}).collect::<Vec<String>>().join(" "))
)).unwrap_or_default(),
..NewCommentForm::default()
},
ValidationErrors::default(),
Tag::for_post(&*conn, post.id)?,
comments,
previous,
post.count_likes(&*conn)?,
post.count_reshares(&*conn)?,
user.clone().and_then(|u| u.has_liked(&*conn, &post).ok()).unwrap_or(false),
user.clone().and_then(|u| u.has_reshared(&*conn, &post).ok()).unwrap_or(false),
user.and_then(|u| u.is_following(&*conn, post.get_authors(&*conn).ok()?[0].id).ok()).unwrap_or(false),
post.get_authors(&*conn)?[0].clone()
)))
}
#[get("/~/<blog>/<slug>", rank = 3)]
pub fn activity_details(
blog: String,
slug: String,
_ap: ApRequest,
rockets: PlumeRocket,
) -> Result<ActivityStream<LicensedArticle>, Option<String>> {
let conn = &*rockets.conn;
let blog = Blog::find_by_fqn(&rockets, &blog).map_err(|_| None)?;
let post = Post::find_by_slug(&*conn, &slug, blog.id).map_err(|_| None)?;
if post.published {
Ok(ActivityStream::new(
post.to_activity(&*conn)
.map_err(|_| String::from("Post serialization error"))?,
))
} else {
Err(Some(String::from("Not published yet.")))
}
}
#[get("/~/<blog>/new", rank = 2)]
pub fn new_auth(blog: String, i18n: I18n) -> Flash<Redirect> {
utils::requires_login(
&i18n!(
i18n.catalog,
"To write a new post, you need to be logged in"
),
uri!(new: blog = blog),
)
}
#[get("/~/<blog>/new", rank = 1)]
pub fn new(blog: String, cl: ContentLen, rockets: PlumeRocket) -> Result<Ructe, ErrorPage> {
let conn = &*rockets.conn;
let b = Blog::find_by_fqn(&rockets, &blog)?;
let user = rockets.user.clone().unwrap();
if !user.is_author_in(&*conn, &b)? {
// TODO actually return 403 error code
return Ok(render!(errors::not_authorized(
&rockets.to_context(),
i18n!(rockets.intl.catalog, "You are not an author of this blog.")
)));
}
let medias = Media::for_user(&*conn, user.id)?;
Ok(render!(posts::new(
&rockets.to_context(),
i18n!(rockets.intl.catalog, "New post"),
b,
false,
&NewPostForm {
license: Instance::get_local()?.default_license,
..NewPostForm::default()
},
true,
None,
ValidationErrors::default(),
medias,
cl.0
)))
}
#[get("/~/<blog>/<slug>/edit")]
pub fn edit(
blog: String,
slug: String,
cl: ContentLen,
rockets: PlumeRocket,
) -> Result<Ructe, ErrorPage> {
let conn = &*rockets.conn;
let intl = &rockets.intl.catalog;
let b = Blog::find_by_fqn(&rockets, &blog)?;
let post = Post::find_by_slug(&*conn, &slug, b.id)?;
let user = rockets.user.clone().unwrap();
if !user.is_author_in(&*conn, &b)? {
return Ok(render!(errors::not_authorized(
&rockets.to_context(),
i18n!(intl, "You are not an author of this blog.")
)));
}
let source = if !post.source.is_empty() {
post.source.clone()
} else {
post.content.get().clone() // fallback to HTML if the markdown was not stored
};
let medias = Media::for_user(&*conn, user.id)?;
let title = post.title.clone();
Ok(render!(posts::new(
&rockets.to_context(),
i18n!(intl, "Edit {0}"; &title),
b,
true,
&NewPostForm {
title: post.title.clone(),
subtitle: post.subtitle.clone(),
content: source,
tags: Tag::for_post(&*conn, post.id)?
.into_iter()
.filter_map(|t| if !t.is_hashtag { Some(t.tag) } else { None })
.collect::<Vec<String>>()
.join(", "),
license: post.license.clone(),
draft: true,
cover: post.cover_id,
},
!post.published,
Some(post),
ValidationErrors::default(),
medias,
cl.0
)))
}
#[post("/~/<blog>/<slug>/edit", data = "<form>")]
pub fn update(
blog: String,
slug: String,
cl: ContentLen,
form: LenientForm<NewPostForm>,
rockets: PlumeRocket,
) -> RespondOrRedirect {
let conn = &*rockets.conn;
let b = Blog::find_by_fqn(&rockets, &blog).expect("post::update: blog error");
let mut post =
Post::find_by_slug(&*conn, &slug, b.id).expect("post::update: find by slug error");
let user = rockets.user.clone().unwrap();
let intl = &rockets.intl.catalog;
let new_slug = if !post.published {
form.title.to_string().to_kebab_case()
} else {
post.slug.clone()
};
let mut errors = match form.validate() {
Ok(_) => ValidationErrors::new(),
Err(e) => e,
};
if new_slug != slug && Post::find_by_slug(&*conn, &new_slug, b.id).is_ok() {
errors.add(
"title",
ValidationError {
code: Cow::from("existing_slug"),
message: Some(Cow::from("A post with the same title already exists.")),
params: HashMap::new(),
},
);
}
if errors.is_empty() {
if !user
.is_author_in(&*conn, &b)
.expect("posts::update: is author in error")
{
// actually it's not "Ok"…
Flash::error(
Redirect::to(uri!(super::blogs::details: name = blog, page = _)),
i18n!(&intl, "You are not allowed to publish on this blog."),
)
.into()
} else {
let (content, mentions, hashtags) = utils::md_to_html(
form.content.to_string().as_ref(),
Some(
&Instance::get_local()
.expect("posts::update: Error getting local instance")
.public_domain,
),
false,
Some(Media::get_media_processor(
&conn,
b.list_authors(&conn)
.expect("Could not get author list")
.iter()
.collect(),
)),
);
// update publication date if when this article is no longer a draft
let newly_published = if !post.published && !form.draft {
post.published = true;
post.creation_date = Utc::now().naive_utc();
true
} else {
false
};
post.slug = new_slug.clone();
post.title = form.title.clone();
post.subtitle = form.subtitle.clone();
post.content = SafeString::new(&content);
post.source = form.content.clone();
post.license = form.license.clone();
post.cover_id = form.cover;
post.update(&*conn, &rockets.searcher)
.expect("post::update: update error");
if post.published {
post.update_mentions(
&conn,
mentions
.into_iter()
.filter_map(|m| Mention::build_activity(&rockets, &m).ok())
.collect(),
)
.expect("post::update: mentions error");
}
let tags = form
.tags
.split(',')
.map(|t| t.trim())
.filter(|t| !t.is_empty())
.collect::<HashSet<_>>()
.into_iter()
.filter_map(|t| Tag::build_activity(t.to_string()).ok())
.collect::<Vec<_>>();
post.update_tags(&conn, tags)
.expect("post::update: tags error");
let hashtags = hashtags
.into_iter()
.collect::<HashSet<_>>()
.into_iter()
.filter_map(|t| Tag::build_activity(t).ok())
.collect::<Vec<_>>();
post.update_hashtags(&conn, hashtags)
.expect("post::update: hashtags error");
if post.published {
if newly_published {
let act = post
.create_activity(&conn)
.expect("post::update: act error");
let dest = User::one_by_instance(&*conn).expect("post::update: dest error");
rockets.worker.execute(move || broadcast(&user, act, dest));
Timeline::add_to_all_timelines(&rockets, &post, Kind::Original).ok();
} else {
let act = post
.update_activity(&*conn)
.expect("post::update: act error");
let dest = User::one_by_instance(&*conn).expect("posts::update: dest error");
rockets.worker.execute(move || broadcast(&user, act, dest));
}
}
Flash::success(
Redirect::to(uri!(details: blog = blog, slug = new_slug, responding_to = _)),
i18n!(intl, "Your article has been updated."),
)
.into()
}
} else {
let medias = Media::for_user(&*conn, user.id).expect("posts:update: medias error");
render!(posts::new(
&rockets.to_context(),
i18n!(intl, "Edit {0}"; &form.title),
b,
true,
&*form,
form.draft,
Some(post),
errors,
medias,
cl.0
))
.into()
}
}
#[derive(Default, FromForm, Validate)]
pub struct NewPostForm {
#[validate(custom(function = "valid_slug", message = "Invalid title"))]
pub title: String,
pub subtitle: String,
pub content: String,
pub tags: String,
pub license: String,
pub draft: bool,
pub cover: Option<i32>,
}
pub fn valid_slug(title: &str) -> Result<(), ValidationError> {
let slug = title.to_string().to_kebab_case();
if slug.is_empty() {
Err(ValidationError::new("empty_slug"))
} else if slug == "new" {
Err(ValidationError::new("invalid_slug"))
} else {
Ok(())
}
}
#[post("/~/<blog_name>/new", data = "<form>")]
pub fn create(
blog_name: String,
form: LenientForm<NewPostForm>,
cl: ContentLen,
rockets: PlumeRocket,
) -> Result<RespondOrRedirect, ErrorPage> {
let conn = &*rockets.conn;
let blog = Blog::find_by_fqn(&rockets, &blog_name).expect("post::create: blog error");
let slug = form.title.to_string().to_kebab_case();
let user = rockets.user.clone().unwrap();
let mut errors = match form.validate() {
Ok(_) => ValidationErrors::new(),
Err(e) => e,
};
if Post::find_by_slug(&*conn, &slug, blog.id).is_ok() {
errors.add(
"title",
ValidationError {
code: Cow::from("existing_slug"),
message: Some(Cow::from("A post with the same title already exists.")),
params: HashMap::new(),
},
);
}
if errors.is_empty() {
if !user
.is_author_in(&*conn, &blog)
.expect("post::create: is author in error")
{
// actually it's not "Ok"…
return Ok(Flash::error(
Redirect::to(uri!(super::blogs::details: name = blog_name, page = _)),
i18n!(
&rockets.intl.catalog,
"You are not allowed to publish on this blog."
),
)
.into());
}
let (content, mentions, hashtags) = utils::md_to_html(
form.content.to_string().as_ref(),
Some(
&Instance::get_local()
.expect("post::create: local instance error")
.public_domain,
),
false,
Some(Media::get_media_processor(
&conn,
blog.list_authors(&conn)
.expect("Could not get author list")
.iter()
.collect(),
)),
);
let post = Post::insert(
&*conn,
NewPost {
blog_id: blog.id,
slug: slug.to_string(),
title: form.title.to_string(),
content: SafeString::new(&content),
published: !form.draft,
license: form.license.clone(),
ap_url: "".to_string(),
creation_date: None,
subtitle: form.subtitle.clone(),
source: form.content.clone(),
cover_id: form.cover,
},
&rockets.searcher,
)
.expect("post::create: post save error");
PostAuthor::insert(
&*conn,
NewPostAuthor {
post_id: post.id,
author_id: user.id,
},
)
.expect("post::create: author save error");
let tags = form
.tags
.split(',')
.map(|t| t.trim())
.filter(|t| !t.is_empty())
.collect::<HashSet<_>>();
for tag in tags {
Tag::insert(
&*conn,
NewTag {
tag: tag.to_string(),
is_hashtag: false,
post_id: post.id,
},
)
.expect("post::create: tags save error");
}
for hashtag in hashtags {
Tag::insert(
&*conn,
NewTag {
tag: hashtag,
is_hashtag: true,
post_id: post.id,
},
)
.expect("post::create: hashtags save error");
}
if post.published {
for m in mentions {
Mention::from_activity(
&*conn,
&Mention::build_activity(&rockets, &m)
.expect("post::create: mention build error"),
post.id,
true,
true,
)
.expect("post::create: mention save error");
}
let act = post
.create_activity(&*conn)
.expect("posts::create: activity error");
let dest = User::one_by_instance(&*conn).expect("posts::create: dest error");
let worker = &rockets.worker;
worker.execute(move || broadcast(&user, act, dest));
Timeline::add_to_all_timelines(&rockets, &post, Kind::Original)?;
}
Ok(Flash::success(
Redirect::to(uri!(details: blog = blog_name, slug = slug, responding_to = _)),
i18n!(&rockets.intl.catalog, "Your article has been saved."),
)
.into())
} else {
let medias = Media::for_user(&*conn, user.id).expect("posts::create: medias error");
Ok(render!(posts::new(
&rockets.to_context(),
i18n!(rockets.intl.catalog, "New article"),
blog,
false,
&*form,
form.draft,
None,
errors,
medias,
cl.0
))
.into())
}
}
#[post("/~/<blog_name>/<slug>/delete")]
pub fn delete(
blog_name: String,
slug: String,
rockets: PlumeRocket,
intl: I18n,
) -> Result<Flash<Redirect>, ErrorPage> {
let user = rockets.user.clone().unwrap();
let post = Blog::find_by_fqn(&rockets, &blog_name)
.and_then(|blog| Post::find_by_slug(&*rockets.conn, &slug, blog.id));
if let Ok(post) = post {
if !post
.get_authors(&*rockets.conn)?
.into_iter()
.any(|a| a.id == user.id)
{
return Ok(Flash::error(
Redirect::to(uri!(details: blog = blog_name, slug = slug, responding_to = _)),
i18n!(intl.catalog, "You are not allowed to delete this article."),
));
}
let dest = User::one_by_instance(&*rockets.conn)?;
let delete_activity = post.build_delete(&*rockets.conn)?;
inbox(
&rockets,
serde_json::to_value(&delete_activity).map_err(Error::from)?,
)?;
let user_c = user.clone();
rockets
.worker
.execute(move || broadcast(&user_c, delete_activity, dest));
let conn = rockets.conn;
rockets
.worker
.execute_after(Duration::from_secs(10 * 60), move || {
user.rotate_keypair(&*conn)
.expect("Failed to rotate keypair");
});
Ok(Flash::success(
Redirect::to(uri!(super::blogs::details: name = blog_name, page = _)),
i18n!(intl.catalog, "Your article has been deleted."),
))
} else {
Ok(Flash::error(Redirect::to(
uri!(super::blogs::details: name = blog_name, page = _),
), i18n!(intl.catalog, "It looks like the article you tried to delete doesn't exist. Maybe it is already gone?")))
}
}
#[get("/~/<blog_name>/<slug>/remote_interact")]
pub fn remote_interact(
rockets: PlumeRocket,
blog_name: String,
slug: String,
) -> Result<Ructe, ErrorPage> {
let target = Blog::find_by_fqn(&rockets, &blog_name)
.and_then(|blog| Post::find_by_slug(&rockets.conn, &slug, blog.id))?;
Ok(render!(posts::remote_interact(
&rockets.to_context(),
target,
super::session::LoginForm::default(),
ValidationErrors::default(),
RemoteForm::default(),
ValidationErrors::default()
)))
}
#[post("/~/<blog_name>/<slug>/remote_interact", data = "<remote>")]
pub fn remote_interact_post(
rockets: PlumeRocket,
blog_name: String,
slug: String,
remote: LenientForm<RemoteForm>,
) -> Result<RespondOrRedirect, ErrorPage> {
let target = Blog::find_by_fqn(&rockets, &blog_name)
.and_then(|blog| Post::find_by_slug(&rockets.conn, &slug, blog.id))?;
if let Some(uri) = User::fetch_remote_interact_uri(&remote.remote)
.ok()
.map(|uri| uri.replace("{uri}", &Uri::percent_encode(&target.ap_url)))
{
Ok(Redirect::to(uri).into())
} else {
let mut errs = ValidationErrors::new();
errs.add("remote", ValidationError {
code: Cow::from("invalid_remote"),
message: Some(Cow::from(i18n!(rockets.intl.catalog, "Couldn't obtain enough information about your account. Please make sure your username is correct."))),
params: HashMap::new(),
});
//could not get your remote url?
Ok(render!(posts::remote_interact(
&rockets.to_context(),
target,
super::session::LoginForm::default(),
ValidationErrors::default(),
remote.clone(),
errs
))
.into())
}
}