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Pascal Engélibert 2022-10-15 15:32:57 +02:00
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[package]
name = "webcomment"
version = "0.1.0"
authors = ["tuxmain <tuxmain@zettascript.org>"]
license = "AGPL-3.0-only"
repository = "https://git.txmn.tk/tuxmain/webcomment"
description = "Templatable comment web server"
edition = "2021"
[dependencies]
#argon2 = "0.4.1"
async-std = { version = "1.12.0", features = ["attributes"] }
base64 = "0.13.0"
clap = { version = "4.0.15", default-features = false, features = ["derive", "std"] }
directories = "4.0.1"
log = "0.4.17"
#matrix-sdk = { version = "0.5.0", default-features = false }
rand = "0.8.5"
serde = { version = "1.0.145", features = ["derive", "rc"] }
serde_json = "1.0.86"
sha2 = "0.10.6"
sled = "0.34.7"
tera = { version = "1.17.1", features = ["builtins", "date-locale"] }
tide = { version = "0.16.0", default-features = false, features = ["h1-server", "cookies", "logger"] }
toml_edit = { version = "0.14.4", features = ["easy"] }
typed-sled = "0.2.0"

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GNU AFFERO GENERAL PUBLIC LICENSE
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This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<https://www.gnu.org/licenses/>.

9
rustfmt.toml Normal file
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hard_tabs = true
newline_style = "unix"
unstable_features = true
format_code_in_doc_comments = true
format_macro_bodies = true
format_macro_matchers = true
format_strings = true
imports_granularity = "Crate"

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use clap::Parser;
use std::{
ffi::OsStr,
path::{Path, PathBuf},
};
#[derive(Clone, Debug)]
pub struct ConfigPath(pub PathBuf);
impl Default for ConfigPath {
fn default() -> ConfigPath {
ConfigPath(
directories::ProjectDirs::from("tk", "txmn", "webcomment").map_or_else(
|| Path::new(".config").to_path_buf(),
|o| o.config_dir().into(),
),
)
}
}
impl From<&OsStr> for ConfigPath {
fn from(v: &OsStr) -> ConfigPath {
ConfigPath(PathBuf::from(v))
}
}
impl ToString for ConfigPath {
fn to_string(&self) -> String {
String::from(
self.0
.as_path()
.to_str()
.expect("Error: Config dir is not UTF-8!"),
)
}
}
#[derive(Clone, Debug, Parser)]
#[clap(name = "webcomment")]
pub struct MainOpt {
#[clap(flatten)]
pub opt: MainCommonOpt,
/// Subcommand
#[clap(subcommand)]
pub cmd: MainSubcommand,
}
#[derive(Clone, Debug, Parser)]
pub enum MainSubcommand {
/// Initialize config & db
Init,
/// Start server
Start(StartOpt),
}
#[derive(Clone, Debug, Parser)]
pub struct MainCommonOpt {
/// Directory
#[clap(short, long, default_value_t=ConfigPath::default())]
pub dir: ConfigPath,
}
#[derive(Clone, Debug, Parser)]
pub struct StartOpt {
/// Temporary database
#[clap(short, long)]
pub tmp: bool,
}

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use serde::{Deserialize, Serialize};
use std::{
net::{IpAddr, Ipv4Addr, SocketAddr},
path::Path,
};
const CONFIG_FILE: &str = "config.toml";
#[derive(Deserialize, Serialize)]
pub struct Config {
//#[serde(default = "Config::default_admin_emails")]
//pub admin_emails: Vec<String>,
#[serde(default = "Config::default_admin_passwords")]
pub admin_passwords: Vec<String>,
/// New or edited comments need admin's approval before being public
#[serde(default = "Config::default_comment_approve")]
pub comment_approve: bool,
/// Duration for which a comment can be edited
#[serde(default = "Config::default_comment_edit_timeout")]
pub comment_edit_timeout: u64,
#[serde(default = "Config::default_comment_author_max_len")]
pub comment_author_max_len: usize,
#[serde(default = "Config::default_comment_email_max_len")]
pub comment_email_max_len: usize,
#[serde(default = "Config::default_comment_text_max_len")]
pub comment_text_max_len: usize,
#[serde(default = "Config::default_cookies_https_only")]
pub cookies_https_only: bool,
#[serde(default = "Config::default_cookies_domain")]
pub cookies_domain: Option<String>,
#[serde(default = "Config::default_lang")]
pub lang: String,
#[serde(default = "Config::default_listen")]
pub listen: SocketAddr,
#[serde(default = "Config::default_root_url")]
pub root_url: String,
}
impl Config {
/*fn default_admin_emails() -> Vec<String> {
vec![]
}*/
fn default_admin_passwords() -> Vec<String> {
vec![]
}
fn default_comment_approve() -> bool {
true
}
fn default_comment_edit_timeout() -> u64 {
7 * 86400
}
fn default_comment_author_max_len() -> usize {
64
}
fn default_comment_email_max_len() -> usize {
128
}
fn default_comment_text_max_len() -> usize {
128 * 1024
}
fn default_cookies_https_only() -> bool {
false
}
fn default_cookies_domain() -> Option<String> {
None
}
fn default_lang() -> String {
"en_GB".into()
}
fn default_listen() -> SocketAddr {
SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 31720)
}
fn default_root_url() -> String {
"/".into()
}
}
impl Default for Config {
fn default() -> Self {
Self {
//admin_emails: Self::default_admin_emails(),
admin_passwords: Self::default_admin_passwords(),
comment_approve: Self::default_comment_approve(),
comment_edit_timeout: Self::default_comment_edit_timeout(),
comment_author_max_len: Self::default_comment_author_max_len(),
comment_email_max_len: Self::default_comment_email_max_len(),
comment_text_max_len: Self::default_comment_text_max_len(),
cookies_https_only: Self::default_cookies_https_only(),
cookies_domain: Self::default_cookies_domain(),
lang: Self::default_lang(),
listen: Self::default_listen(),
root_url: Self::default_root_url(),
}
}
}
pub fn read_config(dir: &Path) -> Config {
let path = dir.join(CONFIG_FILE);
if !path.is_file() {
let config = Config::default();
std::fs::write(path, toml_edit::easy::to_string_pretty(&config).unwrap())
.expect("Cannot write config file");
config
} else {
toml_edit::easy::from_str(
std::str::from_utf8(&std::fs::read(path).expect("Cannot read config file"))
.expect("Bad encoding in config file"),
)
.expect("Bad JSON in config file")
}
}

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use serde::{Deserialize, Serialize};
use sha2::{Digest, Sha256};
use std::path::Path;
pub use typed_sled::Tree;
const DB_DIR: &str = "db";
pub type Time = u64;
#[derive(Clone)]
pub struct Dbs {
pub comment: Tree<CommentId, Comment>,
pub comment_approved: Tree<(TopicHash, Time, CommentId), ()>,
pub comment_pending: Tree<(TopicHash, Time, CommentId), ()>,
}
pub fn load_dbs(path: Option<&Path>) -> Dbs {
let db = sled::Config::new();
let db = if let Some(path) = path {
db.path(path.join(DB_DIR))
} else {
db.temporary(true)
}
.open()
.expect("Cannot open db");
Dbs {
comment: Tree::open(&db, "comment"),
comment_approved: Tree::open(&db, "comment_approved"),
comment_pending: Tree::open(&db, "comment_pending"),
}
}
#[derive(Clone, Debug, Deserialize, Eq, PartialEq, Serialize)]
pub struct Comment {
pub topic_hash: TopicHash,
pub author: String,
pub email: Option<String>,
pub last_edit_time: Option<u64>,
pub post_time: u64,
pub text: String,
}
#[derive(Clone, Debug, Deserialize, Eq, Hash, PartialEq, Serialize)]
pub struct TopicHash(pub [u8; 32]);
impl TopicHash {
pub fn from_topic(topic: &str) -> Self {
let mut hasher = Sha256::new();
hasher.update(topic.as_bytes());
Self(hasher.finalize().into())
}
}
impl AsRef<[u8]> for TopicHash {
fn as_ref(&self) -> &[u8] {
&self.0
}
}
#[derive(Clone, Debug, Deserialize, Eq, Hash, PartialEq, Serialize)]
pub struct CommentId(pub [u8; 16]);
impl CommentId {
pub fn new() -> Self {
Self(rand::random())
}
pub fn zero() -> Self {
Self([0; 16])
}
pub fn max() -> Self {
Self([255; 16])
}
pub fn to_base64(&self) -> String {
base64::encode_config(self.0, base64::URL_SAFE_NO_PAD)
}
pub fn from_base64(s: &str) -> Result<Self, base64::DecodeError> {
let mut buf = [0; 16];
base64::decode_config_slice(s, base64::URL_SAFE_NO_PAD, &mut buf).map(|_| Self(buf))
}
}
impl AsRef<[u8]> for CommentId {
fn as_ref(&self) -> &[u8] {
&self.0
}
}
#[cfg(test)]
mod test {
#[test]
fn test_typed_sled() {
let db = sled::Config::new().temporary(true).open().unwrap();
let tree = typed_sled::Tree::<(u32, u32), ()>::open(&db, "test");
tree.insert(&(123, 456), &()).unwrap();
tree.flush().unwrap();
let mut iter = tree.range((123, 0)..(124, 0));
//let mut iter = tree.iter();
assert_eq!(iter.next(), Some(Ok(((123, 456), ()))));
}
}

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use crate::db::*;
use log::error;
pub fn new_pending_comment(comment: &Comment, dbs: &Dbs) -> Result<CommentId, sled::Error> {
let comment_id = CommentId::new();
dbs.comment.insert(&comment_id, comment)?;
dbs.comment_pending.insert(
&(
comment.topic_hash.clone(),
comment.post_time,
comment_id.clone(),
),
&(),
)?;
Ok(comment_id)
}
pub fn approve_comment(comment_id: CommentId, dbs: &Dbs) -> Result<(), sled::Error> {
if let Some(comment) = dbs.comment.get(&comment_id)? {
dbs.comment_pending.remove(&(
comment.topic_hash.clone(),
comment.post_time,
comment_id.clone(),
))?;
dbs.comment_approved
.insert(&(comment.topic_hash, comment.post_time, comment_id), &())?;
}
Ok(())
}
pub fn remove_pending_comment(
comment_id: CommentId,
dbs: &Dbs,
) -> Result<Option<Comment>, sled::Error> {
if let Some(comment) = dbs.comment.remove(&comment_id)? {
dbs.comment_pending
.remove(&(comment.topic_hash.clone(), comment.post_time, comment_id))?;
return Ok(Some(comment));
}
Ok(None)
}
pub fn iter_comments_by_topic<'a>(
topic_hash: TopicHash,
tree: &'a Tree<(TopicHash, Time, CommentId), ()>,
dbs: &'a Dbs,
) -> impl Iterator<Item = (CommentId, Comment)> + 'a {
tree.range(
(topic_hash.clone(), 0, CommentId::zero())..=(topic_hash, Time::MAX, CommentId::max()),
)
.filter_map(|entry| {
let ((_topic_hash, _time, comment_id), ()) = entry
.map_err(|e| error!("Reading comment_by_topic_and_time: {:?}", e))
.ok()?;
let comment = dbs
.comment
.get(&comment_id)
.map_err(|e| error!("Reading comment: {:?}", e))
.ok()?
.or_else(|| {
error!("Comment not found");
None
})?;
Some((comment_id, comment))
})
}
pub fn iter_approved_comments_by_topic(
topic_hash: TopicHash,
dbs: &Dbs,
) -> impl Iterator<Item = (CommentId, Comment)> + '_ {
iter_comments_by_topic(topic_hash, &dbs.comment_approved, dbs)
}
pub fn iter_pending_comments_by_topic(
topic_hash: TopicHash,
dbs: &Dbs,
) -> impl Iterator<Item = (CommentId, Comment)> + '_ {
iter_comments_by_topic(topic_hash, &dbs.comment_pending, dbs)
}
//pub enum DbHelperError {}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_comment() {
let comment = Comment {
topic_hash: TopicHash::from_topic("test"),
author: String::from("Emmanuel Goldstein"),
email: None,
last_edit_time: None,
post_time: 42,
text: String::from("Hello world!"),
};
let dbs = load_dbs(None);
let comment_id = new_pending_comment(&comment, &dbs).unwrap();
let mut iter = dbs.comment.iter();
assert_eq!(iter.next(), Some(Ok((comment_id.clone(), comment.clone()))));
assert_eq!(iter.next(), None);
let mut iter = dbs.comment_pending.iter();
assert_eq!(
iter.next(),
Some(Ok((
(
comment.topic_hash.clone(),
comment.post_time,
comment_id.clone()
),
()
)))
);
assert_eq!(iter.next(), None);
approve_comment(comment_id.clone(), &dbs).unwrap();
let mut iter = dbs.comment_pending.iter();
assert_eq!(iter.next(), None);
let mut iter = dbs.comment_approved.iter();
assert_eq!(
iter.next(),
Some(Ok((
(
comment.topic_hash.clone(),
comment.post_time,
comment_id.clone()
),
()
)))
);
assert_eq!(iter.next(), None);
}
}

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src/main.rs Normal file
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mod cli;
mod config;
mod db;
mod helpers;
mod queries;
mod server;
mod templates;
use clap::Parser;
#[async_std::main]
async fn main() {
let opt = cli::MainOpt::parse();
match opt.cmd {
cli::MainSubcommand::Init => {
init_all(opt.opt, cli::StartOpt { tmp: false });
}
cli::MainSubcommand::Start(subopt) => {
let (config, dbs, templates) = init_all(opt.opt, subopt);
server::start_server(config, dbs, templates).await
}
}
}
fn init_all(
opt: cli::MainCommonOpt,
subopt: cli::StartOpt,
) -> (config::Config, db::Dbs, templates::Templates) {
std::fs::create_dir_all(&opt.dir.0).expect("Cannot create dir");
let dbs = db::load_dbs((!subopt.tmp).then_some(&opt.dir.0));
(
config::read_config(&opt.dir.0),
dbs,
templates::Templates::new(&opt.dir.0),
)
}

73
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use serde::{Deserialize, Serialize};
#[derive(Clone, Debug, Deserialize)]
pub struct AdminLoginQuery {
pub psw: String,
}
#[derive(Clone, Debug, Deserialize)]
pub struct AdminEditCommentQuery {
pub author: String,
pub comment_id: String,
pub email: String,
pub text: String,
}
#[derive(Clone, Debug, Deserialize)]
pub struct AdminRmCommentQuery {
pub comment_id: String,
}
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct NewCommentQuery {
pub author: String,
pub email: String,
pub text: String,
}
#[derive(Clone, Debug, Deserialize)]
pub struct EditCommentQuery {
pub author: String,
pub comment_id: String,
pub email: String,
pub text: String,
pub token: String,
}
#[derive(Clone, Debug, Deserialize)]
pub struct RmCommentQuery {
pub comment_id: String,
pub token: String,
}
#[derive(Clone, Debug, Deserialize)]
#[serde(tag = "a")]
pub enum CommentQuery {
#[serde(rename = "new_comment")]
NewComment(NewCommentQuery),
#[serde(rename = "edit_comment")]
EditComment(EditCommentQuery),
#[serde(rename = "rm_comment")]
RmComment(RmCommentQuery),
}
#[derive(Clone, Debug, Deserialize)]
#[serde(tag = "a")]
pub enum AdminQuery {
#[serde(rename = "login")]
Login(AdminLoginQuery),
#[serde(rename = "edit_comment")]
EditComment(AdminEditCommentQuery),
#[serde(rename = "rm_comment")]
RmComment(AdminRmCommentQuery),
}
#[derive(Clone, Debug, Deserialize)]
pub struct ApproveQuery {
pub approve: String,
}
#[derive(Clone, Debug, Deserialize)]
pub struct RemoveQuery {
pub remove: String,
}

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use crate::{config::*, db::*, helpers, queries::*, templates::*};
use log::error;
use std::sync::Arc;
use tera::Context;
pub async fn start_server(config: Config, dbs: Dbs, templates: Templates) {
tide::log::start();
let templates = Arc::new(templates);
let config = Arc::new(config);
let mut app = tide::new();
app.at(&format!("{}t/:topic", config.root_url)).get({
let config = config.clone();
let templates = templates.clone();
let dbs = dbs.clone();
move |req: tide::Request<()>| {
serve_comments(req, config.clone(), templates.clone(), dbs.clone())
}
});
app.at(&format!("{}t/:topic", config.root_url)).post({
let config = config.clone();
let templates = templates.clone();
let dbs = dbs.clone();
move |req: tide::Request<()>| {
handle_post_comments(req, config.clone(), templates.clone(), dbs.clone())
}
});
app.at(&format!("{}admin", config.root_url)).get({
let config = config.clone();
let templates = templates.clone();
move |req: tide::Request<()>| serve_admin_login(req, config.clone(), templates.clone())
});
app.at(&format!("{}admin", config.root_url)).post({
let config = config.clone();
let templates = templates.clone();
let dbs = dbs.clone();
move |req: tide::Request<()>| {
handle_post_admin(req, config.clone(), templates.clone(), dbs.clone())
}
});
app.listen(config.listen).await.unwrap();
}
async fn serve_comments<'a>(
req: tide::Request<()>,
config: Arc<Config>,
templates: Arc<Templates>,
dbs: Dbs,
) -> tide::Result<tide::Response> {
let Ok(topic) = req.param("topic") else {
return Err(tide::Error::from_str(404, "No topic"))
};
let admin = req.cookie("admin").map_or(false, |psw| {
config.admin_passwords.contains(&String::from(psw.value()))
});
let topic_hash = TopicHash::from_topic(topic);
let mut context = Context::new();
context.insert("config", &config);
context.insert("admin", &admin);
if admin {
if let Ok(query) = req.query::<ApproveQuery>() {
if let Ok(comment_id) = CommentId::from_base64(&query.approve) {
helpers::approve_comment(comment_id, &dbs)
.map_err(|e| error!("Approving comment: {:?}", e))
.ok();
}
}
if let Ok(query) = req.query::<RemoveQuery>() {
if let Ok(comment_id) = CommentId::from_base64(&query.remove) {
helpers::remove_pending_comment(comment_id, &dbs)
.map_err(|e| error!("Removing comment: {:?}", e))
.ok();
}
}
context.insert(
"comments_pending",
&helpers::iter_pending_comments_by_topic(topic_hash.clone(), &dbs)
.map(|(comment_id, comment)| CommentWithId {
author: comment.author,
id: comment_id.to_base64(),
needs_approval: true,
post_time: comment.post_time,
text: comment.text,
})
.collect::<Vec<CommentWithId>>(),
);
}
context.insert(
"comments",
&helpers::iter_approved_comments_by_topic(topic_hash, &dbs)
.map(|(comment_id, comment)| CommentWithId {
author: comment.author,
id: comment_id.to_base64(),
needs_approval: false,
post_time: comment.post_time,
text: comment.text,
})
.collect::<Vec<CommentWithId>>(),
);
Ok(tide::Response::builder(200)
.content_type(tide::http::mime::HTML)
.body(templates.tera.render("comments.html", &context)?)
.build())
}
async fn serve_admin<'a>(
_req: tide::Request<()>,
config: Arc<Config>,
templates: Arc<Templates>,
dbs: Dbs,
) -> tide::Result<tide::Response> {
let mut context = Context::new();
context.insert("config", &config);
context.insert("admin", &true);
context.insert(
"comments",
&dbs.comment_pending
.iter()
.filter_map(|entry| {
let ((_topic_hash, _time, comment_id), ()) = dbg!(entry
.map_err(|e| error!("Reading comment_pending: {:?}", e))
.ok()?);
let comment = dbs
.comment
.get(&comment_id)
.map_err(|e| error!("Reading comment: {:?}", e))
.ok()?
.or_else(|| {
error!("Comment not found");
None
})?;
Some(CommentWithId {
author: comment.author,
id: comment_id.to_base64(),
needs_approval: true,
post_time: comment.post_time,
text: comment.text,
})
})
.collect::<Vec<CommentWithId>>(),
);
Ok(tide::Response::builder(200)
.content_type(tide::http::mime::HTML)
.body(templates.tera.render("comments.html", &context)?)
.build())
}
async fn serve_admin_login(
_req: tide::Request<()>,
config: Arc<Config>,
templates: Arc<Templates>,
) -> tide::Result<tide::Response> {
let mut context = Context::new();
context.insert("config", &config);
Ok(tide::Response::builder(200)
.content_type(tide::http::mime::HTML)
.body(templates.tera.render("admin_login.html", &context)?)
.build())
}
async fn handle_post_comments(
mut req: tide::Request<()>,
config: Arc<Config>,
templates: Arc<Templates>,
dbs: Dbs,
) -> tide::Result<tide::Response> {
match req.body_form::<CommentQuery>().await? {
CommentQuery::NewComment(query) => {
let Ok(topic) = req.param("topic") else {
return Err(tide::Error::from_str(404, "No topic"))
};
if query.author.len() > config.comment_author_max_len {
return Err(tide::Error::from_str(400, "Too long"));
}
if query.email.len() > config.comment_email_max_len {
return Err(tide::Error::from_str(400, "Too long"));
}
if query.text.len() > config.comment_text_max_len {
return Err(tide::Error::from_str(400, "Too long"));
}
let topic_hash = TopicHash::from_topic(topic);
let time = std::time::SystemTime::now()
.duration_since(std::time::UNIX_EPOCH)
.unwrap()
.as_secs();
let comment = Comment {
topic_hash,
author: query.author,
email: if query.email.is_empty() {
None
} else {
Some(query.email)
},
last_edit_time: None,
post_time: time,
text: query.text,
};
helpers::new_pending_comment(&comment, &dbs)
.map_err(|e| error!("Adding pending comment: {:?}", e))
.ok();
}
_ => todo!(),
}
serve_comments(req, config, templates, dbs).await
}
async fn handle_post_admin(
mut req: tide::Request<()>,
config: Arc<Config>,
templates: Arc<Templates>,
dbs: Dbs,
) -> tide::Result<tide::Response> {
if let Some(psw) = req.cookie("admin") {
if config.admin_passwords.contains(&String::from(psw.value())) {
match req.body_form::<AdminQuery>().await? {
_ => serve_admin(req, config, templates, dbs).await,
}
} else {
serve_admin_login(req, config, templates).await
}
} else if let AdminQuery::Login(query) = req.body_form::<AdminQuery>().await? {
if config.admin_passwords.contains(&query.psw) {
serve_admin(req, config.clone(), templates, dbs)
.await
.map(|mut r| {
let mut cookie = tide::http::Cookie::new("admin", query.psw);
cookie.set_http_only(Some(true));
cookie.set_path(config.root_url.clone());
if let Some(domain) = &config.cookies_domain {
cookie.set_domain(domain.clone());
}
if config.cookies_https_only {
cookie.set_secure(Some(true));
}
r.insert_cookie(cookie);
r
})
} else {
serve_admin_login(req, config, templates).await
}
} else {
serve_admin_login(req, config, templates).await
}
}

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use crate::db::*;
use serde::Serialize;
use std::path::Path;
use tera::Tera;
static TEMPLATE_FILES: &[(&str, &str)] = &[
("comments.html", include_str!("../templates/comments.html")),
(
"admin_login.html",
include_str!("../templates/admin_login.html"),
),
];
pub struct Templates {
pub tera: Tera,
}
impl Templates {
pub fn new(dir: &Path) -> Self {
let dir = dir.join("templates");
std::fs::create_dir_all(&dir).expect("Cannot create templates dir");
for &(file, default) in TEMPLATE_FILES {
let file_path = dir.join(file);
if !file_path.is_file() {
std::fs::write(file_path, default)
.unwrap_or_else(|_| panic!("Cannot write template file {}", file));
}
}
Self {
tera: Tera::new(dir.join("**/*").to_str().unwrap()).expect("Failed to parse templates"),
}
}
}
#[derive(Clone, Debug, Serialize)]
pub struct CommentWithId {
pub author: String,
pub id: String,
pub needs_approval: bool,
pub post_time: Time,
pub text: String,
}

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templates/admin_login.html Normal file
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<title>Admin login | Comments</title>
</head>
<body>
<form action="#" method="post">
<label for="login-psw">Password:</label>
<input type="password" id="login-psw" name="psw"/><br/>
<button type="submit" name="a" value="login">Login</button>
</form>
</body>
</html>

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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<title>Comments</title>
</head>
<body>
<div id="comments_pending">
{% for comment in comments_pending %}
<div class="comment{% if comment.needs_approval %} comment_pending{% endif %}" id="comment-{{ comment.id }}">
<span class="comment-author">{{ comment.author }}</span>
<span class="comment-date">{{ comment.post_time | date(format="%F %R", locale=config.lang) }}</span>
{% if admin and comment.needs_approval %}
<a href="?approve={{ comment.id }}">Approve</a>
{% endif %}
{% if admin %}
<a href="?remove={{ comment.id }}">Remove</a>
{% endif %}
<p class="comment-text">{{ comment.text }}</p>
</div>
{% endfor %}
</div>
<div id="comments">
{% for comment in comments %}
<div class="comment{% if comment.needs_approval %} comment_pending{% endif %}" id="comment-{{ comment.id }}">
<span class="comment-author">{{ comment.author }}</span>
<span class="comment-date">{{ comment.post_time | date(format="%F %R", locale=config.lang) }}</span>
{% if admin and comment.needs_approval %}
<a href="?approve={{ comment.id }}">Approve</a>
{% endif %}
{% if admin %}
<a href="?remove={{ comment.id }}">Remove</a>
{% endif %}
<p class="comment-text">{{ comment.text }}</p>
</div>
{% endfor %}
</div>
<form action="#" method="post">
<label for="new_comment-author">Your name:</label>
<input type="text" id="new_comment-author" name="author" required max-length="{{ config.comment_author_max_len }}"/><br/>
<label for="new_comment-email">Your e-mail:</label>
<input type="email" id="new_comment-email" name="email" max-length="{{ config.comment_email_max_len }}"/><br/>
<label for="new_comment-text">Your comment:</label><br/>
<textarea id="new_comment-text" name="text" max-length="{{ config.comment_text_max_len }}"></textarea><br/>
<button type="submit" name="a" value="new_comment">Post comment</button>
</form>
</body>
</html>