MightyPork
/
elefren-fork
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Use WebSockets for events

Browse Source
master
leo60228 5 years ago committed by Paul Woolcock
parent b877d79831
commit 791bc83387
5 changed files with 184 additions and 64 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 4
      Cargo.toml
  2. 10
      src/errors.rs
  3. 230
      src/lib.rs
  4. 2
      src/page.rs
  5. 2
      src/registration.rs

4
Cargo.toml
Unescape View File

@ -18,13 +18,15 @@ serde_derive = "1"
serde_json = "1"
serde_urlencoded = "0.6.1"
serde_qs = "0.4.5"
url = "1"
tap-reader = "1"
try_from = "0.3.2"
toml = { version = "0.5.0", optional = true }
hyper-old-types = "0.11.0"
envy = { version = "0.4.0", optional = true }
log = "0.4.6"
tungstenite = "0.10.1"
url = "2.1.1"
url1x = { version = "1", package = "url" }
[dependencies.chrono]
version = "0.4"

10
src/errors.rs
Unescape View File

@ -12,6 +12,8 @@ use tomlcrate::de::Error as TomlDeError;
#[cfg(feature = "toml")]
use tomlcrate::ser::Error as TomlSerError;
use url::ParseError as UrlError;
use url1x::ParseError as ReqwestUrlError;
use tungstenite::error::Error as WebSocketError;
/// Convience type over `std::result::Result` with `Error` as the error type.
pub type Result<T> = ::std::result::Result<T, Error>;
@ -33,6 +35,8 @@ pub enum Error {
Io(IoError),
/// Wrapper around the `url::ParseError` struct.
Url(UrlError),
/// Wrapper around the `url::ParseError` struct.
ReqwestUrl(ReqwestUrlError),
/// Missing Client Id.
ClientIdRequired,
/// Missing Client Secret.
@ -60,6 +64,8 @@ pub enum Error {
Envy(EnvyError),
/// Error serializing to a query string
SerdeQs(SerdeQsError),
/// WebSocket error
WebSocket(WebSocketError),
/// Other errors
Other(String),
}
@ -79,6 +85,7 @@ impl error::Error for Error {
Error::Http(ref e) => e,
Error::Io(ref e) => e,
Error::Url(ref e) => e,
Error::ReqwestUrl(ref e) => e,
#[cfg(feature = "toml")]
Error::TomlSer(ref e) => e,
#[cfg(feature = "toml")]
@ -88,6 +95,7 @@ impl error::Error for Error {
#[cfg(feature = "env")]
Error::Envy(ref e) => e,
Error::SerdeQs(ref e) => e,
Error::WebSocket(ref e) => e,
Error::Client(..) | Error::Server(..) => {
return None
@ -138,6 +146,7 @@ from! {
SerdeError, Serde,
UrlEncodedError, UrlEncoded,
UrlError, Url,
ReqwestUrlError, ReqwestUrl,
ApiError, Api,
#[cfg(feature = "toml")] TomlSerError, TomlSer,
#[cfg(feature = "toml")] TomlDeError, TomlDe,
@ -145,6 +154,7 @@ from! {
HeaderParseError, HeaderParseError,
#[cfg(feature = "env")] EnvyError, Envy,
SerdeQsError, SerdeQs,
WebSocketError, WebSocket,
String, Other,
}

230
src/lib.rs
Unescape View File

@ -89,6 +89,8 @@ extern crate serde_urlencoded;
extern crate tap_reader;
extern crate try_from;
extern crate url;
extern crate url1x;
extern crate tungstenite;
#[cfg(feature = "env")]
extern crate envy;
@ -105,12 +107,13 @@ extern crate indoc;
use std::{
borrow::Cow,
io::{BufRead, BufReader},
io::BufRead,
ops,
};
use reqwest::{Client, RequestBuilder, Response};
use tap_reader::Tap;
use tungstenite::client::AutoStream;
use entities::prelude::*;
use http_send::{HttpSend, HttpSender};
@ -202,7 +205,7 @@ impl From<Data> for Mastodon<HttpSender> {
}
impl<H: HttpSend> MastodonClient<H> for Mastodon<H> {
type Stream = EventReader<BufReader<Response>>;
type Stream = EventReader<WebSocket>;
paged_routes! {
(get) favourites: "favourites" => Status,
@ -491,124 +494,229 @@ impl<H: HttpSend> MastodonClient<H> for Mastodon<H> {
/// # }
/// ```
fn streaming_user(&self) -> Result<Self::Stream> {
let response = self.send(self.client.get(&self.route("/api/v1/streaming/user")))?;
let reader = BufReader::new(response);
Ok(EventReader(reader))
let mut url: url::Url = self.route("/api/v1/streaming").parse()?;
url.query_pairs_mut()
.append_pair("access_token", &self.token)
.append_pair("stream", "user");
let mut url: url::Url = reqwest::get(url.as_str())?.url().as_str().parse()?;
let new_scheme = match url.scheme() {
"http" => "ws",
"https" => "wss",
x => return Err(Error::Other(format!("Bad URL scheme: {}", x))),
};
url.set_scheme(new_scheme).map_err(|_| Error::Other("Bad URL scheme!".to_string()))?;
let client = tungstenite::connect(url.as_str())?.0;
Ok(EventReader(WebSocket(client)))
}
/// returns all public statuses
fn streaming_public(&self) -> Result<Self::Stream> {
let response = self.send(self.client.get(&self.route("/api/v1/streaming/public")))?;
let reader = BufReader::new(response);
Ok(EventReader(reader))
let mut url: url::Url = self.route("/api/v1/streaming").parse()?;
url.query_pairs_mut()
.append_pair("access_token", &self.token)
.append_pair("stream", "public");
let mut url: url::Url = reqwest::get(url.as_str())?.url().as_str().parse()?;
let new_scheme = match url.scheme() {
"http" => "ws",
"https" => "wss",
x => return Err(Error::Other(format!("Bad URL scheme: {}", x))),
};
url.set_scheme(new_scheme).map_err(|_| Error::Other("Bad URL scheme!".to_string()))?;
let client = tungstenite::connect(url.as_str())?.0;
Ok(EventReader(WebSocket(client)))
}
/// Returns all local statuses
fn streaming_local(&self) -> Result<Self::Stream> {
let response = self.send(
self.client
.get(&self.route("/api/v1/streaming/public/local")),
)?;
let reader = BufReader::new(response);
Ok(EventReader(reader))
let mut url: url::Url = self.route("/api/v1/streaming").parse()?;
url.query_pairs_mut()
.append_pair("access_token", &self.token)
.append_pair("stream", "public:local");
let mut url: url::Url = reqwest::get(url.as_str())?.url().as_str().parse()?;
let new_scheme = match url.scheme() {
"http" => "ws",
"https" => "wss",
x => return Err(Error::Other(format!("Bad URL scheme: {}", x))),
};
url.set_scheme(new_scheme).map_err(|_| Error::Other("Bad URL scheme!".to_string()))?;
let client = tungstenite::connect(url.as_str())?.0;
Ok(EventReader(WebSocket(client)))
}
/// Returns all public statuses for a particular hashtag
fn streaming_public_hashtag(&self, hashtag: &str) -> Result<Self::Stream> {
let response = self.send(
self.client
.get(&self.route(&format!("/api/v1/streaming/hashtag?tag={}", hashtag))),
)?;
let reader = BufReader::new(response);
Ok(EventReader(reader))
let mut url: url::Url = self.route("/api/v1/streaming").parse()?;
url.query_pairs_mut()
.append_pair("access_token", &self.token)
.append_pair("stream", "hashtag")
.append_pair("tag", hashtag);
let mut url: url::Url = reqwest::get(url.as_str())?.url().as_str().parse()?;
let new_scheme = match url.scheme() {
"http" => "ws",
"https" => "wss",
x => return Err(Error::Other(format!("Bad URL scheme: {}", x))),
};
url.set_scheme(new_scheme).map_err(|_| Error::Other("Bad URL scheme!".to_string()))?;
let client = tungstenite::connect(url.as_str())?.0;
Ok(EventReader(WebSocket(client)))
}
/// Returns all local statuses for a particular hashtag
fn streaming_local_hashtag(&self, hashtag: &str) -> Result<Self::Stream> {
let response = self.send(
self.client
.get(&self.route(&format!("/api/v1/streaming/hashtag/local?tag={}", hashtag))),
)?;
let reader = BufReader::new(response);
Ok(EventReader(reader))
let mut url: url::Url = self.route("/api/v1/streaming").parse()?;
url.query_pairs_mut()
.append_pair("access_token", &self.token)
.append_pair("stream", "hashtag:local")
.append_pair("tag", hashtag);
let mut url: url::Url = reqwest::get(url.as_str())?.url().as_str().parse()?;
let new_scheme = match url.scheme() {
"http" => "ws",
"https" => "wss",
x => return Err(Error::Other(format!("Bad URL scheme: {}", x))),
};
url.set_scheme(new_scheme).map_err(|_| Error::Other("Bad URL scheme!".to_string()))?;
let client = tungstenite::connect(url.as_str())?.0;
Ok(EventReader(WebSocket(client)))
}
/// Returns statuses for a list
fn streaming_list(&self, list_id: &str) -> Result<Self::Stream> {
let response = self.send(
self.client
.get(&self.route(&format!("/api/v1/streaming/list?list={}", list_id))),
)?;
let reader = BufReader::new(response);
Ok(EventReader(reader))
let mut url: url::Url = self.route("/api/v1/streaming").parse()?;
url.query_pairs_mut()
.append_pair("access_token", &self.token)
.append_pair("stream", "list")
.append_pair("list", list_id);
let mut url: url::Url = reqwest::get(url.as_str())?.url().as_str().parse()?;
let new_scheme = match url.scheme() {
"http" => "ws",
"https" => "wss",
x => return Err(Error::Other(format!("Bad URL scheme: {}", x))),
};
url.set_scheme(new_scheme).map_err(|_| Error::Other("Bad URL scheme!".to_string()))?;
let client = tungstenite::connect(url.as_str())?.0;
Ok(EventReader(WebSocket(client)))
}
/// Returns all direct messages
fn streaming_direct(&self) -> Result<Self::Stream> {
let response = self.send(self.client.get(&self.route("/api/v1/streaming/direct")))?;
let reader = BufReader::new(response);
Ok(EventReader(reader))
let mut url: url::Url = self.route("/api/v1/streaming").parse()?;
url.query_pairs_mut()
.append_pair("access_token", &self.token)
.append_pair("stream", "direct");
let mut url: url::Url = reqwest::get(url.as_str())?.url().as_str().parse()?;
let new_scheme = match url.scheme() {
"http" => "ws",
"https" => "wss",
x => return Err(Error::Other(format!("Bad URL scheme: {}", x))),
};
url.set_scheme(new_scheme).map_err(|_| Error::Other("Bad URL scheme!".to_string()))?;
let client = tungstenite::connect(url.as_str())?.0;
Ok(EventReader(WebSocket(client)))
}
}
#[derive(Debug)]
/// WebSocket newtype so that EventStream can be implemented without coherency issues
pub struct WebSocket(tungstenite::protocol::WebSocket<AutoStream>);
/// A type that streaming events can be read from
pub trait EventStream {
/// Read a message from this stream
fn read_message(&mut self) -> Result<String>;
}
impl<R: BufRead> EventStream for R {
fn read_message(&mut self) -> Result<String> {
let mut buf = String::new();
self.read_line(&mut buf)?;
Ok(buf)
}
}
impl EventStream for WebSocket {
fn read_message(&mut self) -> Result<String> {
Ok(self.0.read_message()?.into_text()?)
}
}
#[derive(Debug)]
/// Iterator that produces events from a mastodon streaming API event stream
pub struct EventReader<R: BufRead>(R);
impl<R: BufRead> Iterator for EventReader<R> {
pub struct EventReader<R: EventStream>(R);
impl<R: EventStream> Iterator for EventReader<R> {
type Item = Event;
fn next(&mut self) -> Option<Self::Item> {
let mut lines = Vec::new();
let mut tmp = String::new();
loop {
if let Ok(..) = self.0.read_line(&mut tmp) {
let line = tmp.trim().to_string();
tmp.clear();
if line.starts_with(":") {
if let Ok(line) = self.0.read_message() {
let line = line.trim().to_string();
if line.starts_with(":") || line.is_empty() {
continue;
}
if line.is_empty() && !lines.is_empty() {
if let Ok(event) = self.make_event(&lines) {
lines.clear();
return Some(event);
} else {
continue;
}
}
lines.push(line);
if let Ok(event) = self.make_event(&lines) {
lines.clear();
return Some(event);
} else {
continue;
}
}
}
}
}
impl<R: BufRead> EventReader<R> {
impl<R: EventStream> EventReader<R> {
fn make_event(&self, lines: &[String]) -> Result<Event> {
let event = lines
let event;
let data;
if let Some(event_line) = lines
.iter()
.find(|line| line.starts_with("event:"))
.ok_or_else(|| Error::Other("No `event:` line".to_string()))?;
let event = event[6..].trim();
let data = lines.iter().find(|line| line.starts_with("data:"));
{
event = event_line[6..].trim().to_string();
data = lines.iter().find(|line| line.starts_with("data:")).map(|x| x[5..].trim().to_string());
} else {
#[derive(Deserialize)]
struct Message {
pub event: String,
pub payload: Option<String>,
}
let message = serde_json::from_str::<Message>(&lines[0])?;
event = message.event;
data = message.payload;
}
let event: &str = &event;
Ok(match event {
"notification" => {
let data = data.ok_or_else(|| {
Error::Other("Missing `data` line for notification".to_string())
})?;
let data = data[5..].trim();
let notification = serde_json::from_str::<Notification>(&data)?;
Event::Notification(notification)
},
"update" => {
let data =
data.ok_or_else(|| Error::Other("Missing `data` line for update".to_string()))?;
let data = data[5..].trim();
let status = serde_json::from_str::<Status>(&data)?;
Event::Update(status)
},
"delete" => {
let data =
data.ok_or_else(|| Error::Other("Missing `data` line for delete".to_string()))?;
let data = data[5..].trim().to_string();
Event::Delete(data)
},
"filters_changed" => Event::FiltersChanged,
@ -668,7 +776,7 @@ impl<H: HttpSend> MastodonBuilder<H> {
pub struct MastodonUnauth<H: HttpSend = HttpSender> {
client: Client,
http_sender: H,
base: url::Url,
base: reqwest::Url,
}
impl MastodonUnauth<HttpSender> {
@ -682,13 +790,13 @@ impl MastodonUnauth<HttpSender> {
Ok(MastodonUnauth {
client: Client::new(),
http_sender: HttpSender,
base: url::Url::parse(&base)?,
base: reqwest::Url::parse(&base)?,
})
}
}
impl<H: HttpSend> MastodonUnauth<H> {
fn route(&self, url: &str) -> Result<url::Url> {
fn route(&self, url: &str) -> Result<reqwest::Url> {
Ok(self.base.join(url)?)
}

2
src/page.rs
Unescape View File

@ -3,7 +3,7 @@ use entities::itemsiter::ItemsIter;
use hyper_old_types::header::{parsing, Link, RelationType};
use reqwest::{header::LINK, Response};
use serde::Deserialize;
use url::Url;
use reqwest::Url;
use http_send::HttpSend;

2
src/registration.rs
Unescape View File

@ -2,7 +2,7 @@ use std::borrow::Cow;
use reqwest::{Client, RequestBuilder, Response};
use try_from::TryInto;
use url::percent_encoding::{utf8_percent_encode, DEFAULT_ENCODE_SET};
use url1x::percent_encoding::{utf8_percent_encode, DEFAULT_ENCODE_SET};
use apps::{App, AppBuilder};
use http_send::{HttpSend, HttpSender};

Write Preview
Loading…
Cancel
Save