Files
dingtalk/src/lib.rs
2020-01-07 00:18:08 +08:00

547 lines
18 KiB
Rust

#[macro_use]
extern crate json;
use std::fs;
use std::env;
use std::path::PathBuf;
use std::time::SystemTime;
use std::io::{
Error,
ErrorKind,
};
use crypto::{
mac::{
Mac,
MacResult,
},
hmac::Hmac,
sha2::Sha256,
};
pub type XResult<T> = Result<T, Box<dyn std::error::Error>>;
const CONTENT_TYPE: &str = "Content-Type";
const APPLICATION_JSON_UTF8: &str = "application/json; charset=utf-8";
const DEFAULT_DINGTALK_ROBOT_URL: &str = "https://oapi.dingtalk.com/robot/send?access_token=";
/// `DingTalk` is a simple SDK for DingTalk webhook robot
///
/// Document https://ding-doc.dingtalk.com/doc#/serverapi2/qf2nxq
///
/// Sample code:
/// ```
/// let dt = DingTalk::new("<token>", "");
/// dt.send_text("Hello world!")?;
/// ```
///
/// At all sample:
/// ```
/// dt.send_message(&DingTalkMessage::new_text("Hello World!").at_all())?;
/// ```
#[derive(Default)]
pub struct DingTalk<'a> {
pub default_webhook_url: &'a str,
pub access_token: &'a str,
pub sec_token: &'a str,
pub direct_url: &'a str,
}
/// DingTalk message type
/// * Text - text message
/// * Markdown - markdown message
/// * Link - link message
/// * ActionCard - action card message
/// * FeedCard - feed card message
#[derive(Clone, Copy, Debug, PartialEq)]
pub enum DingTalkMessageType {
Text,
Markdown,
Link,
ActionCard,
FeedCard,
}
/// Default DingTalkMessageType is Text
impl Default for DingTalkMessageType {
fn default() -> Self { DingTalkMessageType::Text }
}
/// DingTalk messge action card avatar
#[derive(Clone, Copy, Debug)]
pub enum DingTalkMessageActionCardHideAvatar {
Hide,
Show,
}
// default value
impl Default for DingTalkMessageActionCardHideAvatar {
fn default() -> Self { DingTalkMessageActionCardHideAvatar::Show }
}
/// into JsonValue
impl From<DingTalkMessageActionCardHideAvatar> for json::JsonValue {
fn from(a: DingTalkMessageActionCardHideAvatar) -> Self {
json::JsonValue::String(match a {
DingTalkMessageActionCardHideAvatar::Show => "0".into(),
DingTalkMessageActionCardHideAvatar::Hide => "1".into(),
})
}
}
/// DingTalk message action card orientation
#[derive(Clone, Copy, Debug)]
pub enum DingTalkMessageActionCardBtnOrientation {
Vertical,
Landscape,
}
/// default value
impl Default for DingTalkMessageActionCardBtnOrientation {
fn default() -> Self { DingTalkMessageActionCardBtnOrientation::Vertical }
}
/// into JsonValue
impl From<DingTalkMessageActionCardBtnOrientation> for json::JsonValue {
fn from(o: DingTalkMessageActionCardBtnOrientation) -> Self {
json::JsonValue::String(match o {
DingTalkMessageActionCardBtnOrientation::Vertical => "0".into(),
DingTalkMessageActionCardBtnOrientation::Landscape => "1".into(),
})
}
}
/// DingTalk message action card btn
#[derive(Debug)]
pub struct DingTalkMessageActionCardBtn {
pub title: String,
pub action_url: String,
}
/// DingTalk message feed card link
#[derive(Debug)]
pub struct DingTalkMessageFeedCardLink {
pub title: String,
pub message_url: String,
pub pic_url: String,
}
/// DingTalk message
#[derive(Debug, Default)]
pub struct DingTalkMessage<'a> {
pub message_type: DingTalkMessageType,
pub text_content: &'a str,
pub markdown_title: &'a str,
pub markdown_content: &'a str,
pub link_text: &'a str,
pub link_title: &'a str,
pub link_pic_url: &'a str,
pub link_message_url: &'a str,
pub action_card_title: &'a str,
pub action_card_text: &'a str,
pub action_card_hide_avatar: DingTalkMessageActionCardHideAvatar,
pub action_card_btn_orientation: DingTalkMessageActionCardBtnOrientation,
pub action_card_single_btn: Option<DingTalkMessageActionCardBtn>,
pub action_card_btns: Vec<DingTalkMessageActionCardBtn>,
pub feed_card_links: Vec<DingTalkMessageFeedCardLink>,
pub at_all: bool,
pub at_mobiles: Vec<String>,
}
impl <'a> DingTalkMessage<'a> {
/// New text DingTalk message
pub fn new_text(text_content: &'a str) -> Self {
Self::new(DingTalkMessageType::Text).text(text_content)
}
/// New markdown DingTalk message
pub fn new_markdown(markdown_title: &'a str, markdown_content: &'a str) -> Self {
Self::new(DingTalkMessageType::Markdown).markdown(markdown_title, markdown_content)
}
/// New link DingTalk message
pub fn new_link(link_title: &'a str, link_text: &'a str, link_pic_url: &'a str, link_message_url: &'a str) -> Self {
Self::new(DingTalkMessageType::Link).link(link_title, link_text, link_pic_url, link_message_url)
}
/// New action card DingTalk message
pub fn new_action_card(title: &'a str, text: &'a str) -> Self {
let mut s = Self::new(DingTalkMessageType::ActionCard);
s.action_card_title = title;
s.action_card_text = text;
s
}
/// New feed card DingTalk message
pub fn new_feed_card() -> Self {
Self::new(DingTalkMessageType::FeedCard)
}
/// New DingTalk message
pub fn new(message_type: DingTalkMessageType) -> Self {
DingTalkMessage {
message_type: message_type,
..Default::default()
}
}
/// Set text
pub fn text(mut self, text_content: &'a str) -> Self {
self.text_content = text_content;
self
}
/// Set markdown
pub fn markdown(mut self, markdown_title: &'a str, markdown_content: &'a str) -> Self {
self.markdown_title = markdown_title;
self.markdown_content = markdown_content;
self
}
/// Set link
pub fn link(mut self, link_title: &'a str, link_text: &'a str, link_pic_url: &'a str, link_message_url: &'a str) -> Self {
self.link_title = link_title;
self.link_text = link_text;
self.link_pic_url = link_pic_url;
self.link_message_url = link_message_url;
self
}
/// Set action card show avator(default show)
pub fn action_card_show_avatar(mut self) -> Self {
self.action_card_hide_avatar = DingTalkMessageActionCardHideAvatar::Show;
self
}
/// Set action card hide avator
pub fn action_card_hide_avatar(mut self) -> Self {
self.action_card_hide_avatar = DingTalkMessageActionCardHideAvatar::Hide;
self
}
/// Set action card btn vertical(default vertical)
pub fn action_card_btn_vertical(mut self) -> Self {
self.action_card_btn_orientation = DingTalkMessageActionCardBtnOrientation::Vertical;
self
}
/// Set action card btn landscape
pub fn action_card_btn_landscape(mut self) -> Self {
self.action_card_btn_orientation = DingTalkMessageActionCardBtnOrientation::Landscape;
self
}
/// Set action card single btn
pub fn set_action_card_signle_btn(mut self, btn: DingTalkMessageActionCardBtn) -> Self {
self.action_card_single_btn = Some(btn);
self
}
/// Add action card btn
pub fn add_action_card_btn(mut self, btn: DingTalkMessageActionCardBtn) -> Self {
self.action_card_btns.push(btn);
self
}
/// Add feed card link
pub fn add_feed_card_link(mut self, link: DingTalkMessageFeedCardLink) -> Self {
self.feed_card_links.push(link);
self
}
/// Add feed card link detail
pub fn add_feed_card_link_detail(self, title: &'a str, message_url: &'a str, pic_url: &'a str) -> Self {
self.add_feed_card_link(DingTalkMessageFeedCardLink {
title: title.to_owned(),
message_url: message_url.to_owned(),
pic_url: pic_url.to_owned(),
})
}
/// At all
pub fn at_all(mut self) -> Self {
self.at_all = true;
self
}
/// At mobiles
pub fn at_mobiles(mut self, mobiles: &Vec<String>) -> Self {
for m in mobiles {
self.at_mobiles.push(m.clone());
}
self
}
}
impl <'a> DingTalk<'a> {
/// Create `DingTalk` from file
///
/// Format see `DingTalk::from_json(json: &str)`
pub fn from_file(f: &str) -> XResult<Self> {
let f_path_buf = if f.starts_with("~/") {
let home = PathBuf::from(env::var("HOME")?);
home.join(f.chars().skip(2).collect::<String>())
} else {
PathBuf::from(f)
};
let f_content = fs::read_to_string(f_path_buf)?;
Self::from_json(&f_content)
}
/// Create `DingTalk` from JSON string
///
/// Format:
/// ```json
/// {
/// "default_webhook_url": "", // option
/// "access_token": "<access token>",
/// "sec_token": "<sec token>" // option
/// }
/// ```
pub fn from_json(json: &str) -> XResult<Self> {
let json_value = json::parse(json)?;
if !json_value.is_object() {
return Err(Box::new(Error::new(ErrorKind::Other, format!("JSON format erorr: {}", json))));
}
let default_webhook_url = Self::string_to_a_str(json_value["default_webhook_url"].as_str().unwrap_or(DEFAULT_DINGTALK_ROBOT_URL));
let access_token = Self::string_to_a_str(json_value["access_token"].as_str().unwrap_or_default());
let sec_token = Self::string_to_a_str(json_value["sec_token"].as_str().unwrap_or_default());
Ok(DingTalk {
default_webhook_url: default_webhook_url,
access_token: access_token,
sec_token: sec_token,
..Default::default()
})
}
/// Create `DingTalk` from url, for outgoing robot
pub fn from_url(url: &'a str) -> Self {
DingTalk {
direct_url: url,
..Default::default()
}
}
/// Create `DingTalk`
/// `access_token` is access token, `sec_token` can be empty `""`
pub fn new(access_token: &'a str, sec_token: &'a str) -> Self {
DingTalk {
default_webhook_url: DEFAULT_DINGTALK_ROBOT_URL,
access_token: access_token,
sec_token: sec_token,
..Default::default()
}
}
/// Set default webhook url
pub fn set_default_webhook_url(&mut self, default_webhook_url: &'a str) {
self.default_webhook_url = default_webhook_url;
}
/// Send DingTalk message
///
/// 1. Create DingTalk JSON message
/// 2. POST JSON message to DingTalk server
pub async fn send_message(&self, dingtalk_message: &DingTalkMessage<'_>) -> XResult<()> {
let mut message_json = match dingtalk_message.message_type {
DingTalkMessageType::Text => object!{
"msgtype" => "text",
"text" => object! {
"content" => dingtalk_message.text_content,
}
},
DingTalkMessageType::Link => object!{
"msgtype" => "link",
"link" => object!{
"text" => dingtalk_message.link_text,
"title" => dingtalk_message.link_title,
"picUrl" => dingtalk_message.link_pic_url,
"messageUrl" => dingtalk_message.link_message_url,
}
},
DingTalkMessageType::Markdown => object!{
"msgtype" => "markdown",
"markdown" => object! {
"title" => dingtalk_message.markdown_title,
"text" => dingtalk_message.markdown_content,
}
},
DingTalkMessageType::ActionCard => object!{
"msgtype" => "actionCard",
"actionCard" => object!{
"title" => dingtalk_message.action_card_title,
"text" => dingtalk_message.action_card_text,
"hideAvatar" => dingtalk_message.action_card_hide_avatar,
"btnOrientation" => dingtalk_message.action_card_btn_orientation,
},
},
DingTalkMessageType::FeedCard => object!{
"msgtype" => "feedCard",
},
};
if DingTalkMessageType::ActionCard == dingtalk_message.message_type {
if dingtalk_message.action_card_single_btn.is_some() {
let single_btn = dingtalk_message.action_card_single_btn.as_ref().unwrap();
message_json["actionCard"]["singleTitle"] = single_btn.title.as_str().into();
message_json["actionCard"]["singleURL"] = single_btn.action_url.as_str().into();
} else {
let mut btns: Vec<json::JsonValue> = vec![];
for action_card_btn in &dingtalk_message.action_card_btns {
let btn = object!{
"title" => action_card_btn.title.as_str(),
"actionURL" => action_card_btn.action_url.as_str(),
};
btns.push(btn);
}
message_json["actionCard"]["btns"] = json::JsonValue::Array(btns);
}
}
if DingTalkMessageType::FeedCard == dingtalk_message.message_type {
let mut links: Vec<json::JsonValue> = vec![];
for feed_card_link in &dingtalk_message.feed_card_links {
let link = object!{
"title" => feed_card_link.title.as_str(),
"messageURL" => feed_card_link.message_url.as_str(),
"picURL" => feed_card_link.pic_url.as_str(),
};
links.push(link);
}
message_json["feedCard"] = object!{
"links" => json::JsonValue::Array(links),
};
}
if dingtalk_message.at_all || dingtalk_message.at_mobiles.len() > 0 {
let mut at_mobiles = json::JsonValue::new_object();
for m in &dingtalk_message.at_mobiles {
at_mobiles.push(m.clone()).ok();
}
message_json["at"] = object!{
"atMobiles" => at_mobiles,
"isAtAll" => dingtalk_message.at_all,
};
}
self.send(&json::stringify(message_json)).await
}
/// Send text message
pub async fn send_text(&self, text_message: &str) -> XResult<()> {
self.send_message(&DingTalkMessage::new_text(text_message)).await
}
/// Send markdown message
pub async fn send_markdown(&self, title: &str, text: &str) -> XResult<()> {
self.send_message(&DingTalkMessage::new_markdown(title, text)).await
}
/// Send link message
pub async fn send_link(&self, link_title: &'a str, link_text: &'a str, link_pic_url: &'a str, link_message_url: &'a str) -> XResult<()> {
self.send_message(&DingTalkMessage::new_link(link_title, link_text, link_pic_url, link_message_url)).await
}
/// Direct send JSON message
pub async fn send(&self, json_message: &str) -> XResult<()> {
let client = reqwest::Client::new();
let response = match client.post(&self.generate_signed_url())
.header(CONTENT_TYPE, APPLICATION_JSON_UTF8)
.body(json_message.as_bytes().to_vec())
.send().await {
Ok(r) => r,
Err(e) => return Err(Box::new(Error::new(ErrorKind::Other, format!("Unknown error: {}", e))) as Box<dyn std::error::Error>),
};
match response.status().as_u16() {
200_u16 => Ok(()),
_ => Err(Box::new(Error::new(ErrorKind::Other, format!("Unknown status: {}", response.status().as_u16()))) as Box<dyn std::error::Error>),
}
}
/// Generate signed dingtalk webhook URL
pub fn generate_signed_url(&self) -> String {
if !self.direct_url.is_empty() {
return self.direct_url.into();
}
let mut signed_url = String::with_capacity(1024);
signed_url.push_str(self.default_webhook_url);
signed_url.push_str(&urlencoding::encode(self.access_token));
if self.sec_token != "" {
let timestamp = &format!("{}", SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap().as_millis());
let timestamp_and_secret = &format!("{}\n{}", timestamp, self.sec_token);
let hmac_sha256 = base64::encode(calc_hmac_sha256(self.sec_token.as_bytes(), timestamp_and_secret.as_bytes()).code());
signed_url.push_str("&timestamp=");
signed_url.push_str(timestamp);
signed_url.push_str("&sign=");
signed_url.push_str(&urlencoding::encode(&hmac_sha256));
}
signed_url
}
// SAFE? may these codes cause memory leak?
fn string_to_a_str(s: &str) -> &'a str {
Box::leak(s.to_owned().into_boxed_str())
}
}
/// calc hma_sha256 digest
fn calc_hmac_sha256(key: &[u8], message: &[u8]) -> MacResult {
let mut hmac = Hmac::new(Sha256::new(), key);
hmac.input(message);
hmac.result()
}
#[test]
fn run_all_tests() {
futures::executor::block_on(_test_send()).unwrap();
}
async fn _test_send() -> XResult<()> {
let dt = DingTalk::from_file("~/.dingtalk-token.json")?;
dt.send_text("test message 001 ---------------------").await?;
dt.send_markdown("markdown title 001", r#"# markdown content 001
* line 0
* line 1
* line 2"#).await?;
dt.send_link("link title 001", "link content 001", "https://hatter.ink/favicon.png", "https://hatter.ink/").await?;
dt.send_message(&DingTalkMessage::new_feed_card()
.add_feed_card_link(DingTalkMessageFeedCardLink{
title: "test feed card title 001".into(),
message_url: "https://hatter.ink/".into(),
pic_url: "https://hatter.ink/favicon.png".into(),
})
.add_feed_card_link(DingTalkMessageFeedCardLink{
title: "test feed card title 002".into(),
message_url: "https://hatter.ink/".into(),
pic_url: "https://hatter.ink/favicon.png".into(),
})
).await?;
dt.send_message(&DingTalkMessage::new_action_card("action card 001", "action card text 001")
.set_action_card_signle_btn(DingTalkMessageActionCardBtn{
title: "test signle btn title".into(),
action_url: "https://hatter.ink/".into(),
})
).await?;
dt.send_message(&DingTalkMessage::new_action_card("action card 002", "action card text 002")
.add_action_card_btn(DingTalkMessageActionCardBtn{
title: "test signle btn title 01".into(),
action_url: "https://hatter.ink/".into(),
})
.add_action_card_btn(DingTalkMessageActionCardBtn{
title: "test signle btn title 02".into(),
action_url: "https://hatter.ink/".into(),
})
).await?;
Ok(())
}