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index.js
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index.js
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const path = require("path");
require("dotenv").config();
const cors = require("cors");
const axios = require("axios");
const mongoose = require("mongoose");
const express = require("express");
const app = express();
const Team = require("./models/team");
const Broadcast = require("./models/broadcast");
const generateAccessToken = require("./middleware/generateAccessToken");
const secureRoute = require("./middleware/secureRoute");
const postMessage = require("./utils/postMessage");
app.use(express.json());
app.use(
express.urlencoded({
extended: true,
})
);
app.use(cors());
app.use(express.static("public"));
app.listen(process.env.PORT || 3000, () => {
try {
mongoose.connect(
process.env.MONGODB_URI,
{ useNewUrlParser: true, useUnifiedTopology: true },
() => console.log("Mongoose is connected")
);
} catch (e) {
console.log("could not connect");
}
console.log(`listening on port ${process.env.PORT}`);
});
app.get("/callback", generateAccessToken, async (req, res) => {
try {
const slackData = req.slackData;
const {
team: { id: teamId, name },
access_token: accessToken,
} = slackData;
const oldTeam = await Team.find({ teamId }).lean();
if (!oldTeam.length) {
await Team.create({ teamId, name, accessToken });
} else {
await Team.findOneAndUpdate({ teamId }, { accessToken });
}
res.sendFile(path.join(__dirname, "static/index.html"));
} catch (err) {
res.status(500).send(`Something went wrong: ${err}`);
}
});
app.get("/", async (req, res) => {
res.sendFile(path.join(__dirname, "static/index.html"));
});
app.get("/teams", async (req, res) => {
try {
const teams = await Team.find({}, { accessToken: 0 }).lean();
res.status(200).send(teams);
} catch (error) {
res.status(500).send(`Something went wrong: ${error}`);
}
});
app.get("/publicChannelsList/:teamId", async (req, res) => {
try {
const { accessToken } = await Team.findOne({
teamId: req.params.teamId,
});
const { data } = await axios({
method: "get",
url: "https://slack.com/api/conversations.list",
headers: {
Authorization: "Bearer " + accessToken,
},
});
if (data.ok) {
const channels = data.channels
.filter(({ name, id, is_channel, is_archived }) => {
if (is_channel && !is_archived) {
return 1;
}
})
.map(({ name, id }) => ({ name, id }));
res.status(200).json(channels);
} else {
res.send(data.error);
}
} catch (error) {
res.status(500).send(`Something went wrong: ${error}`);
}
});
app.post("/broadcasts", secureRoute, async (req, res) => {
try {
let { name, postTo } = req.body;
name = name || 'No Name Given';
await Broadcast.findOneAndUpdate(
{ name: name },
{ name, postTo },
{ upsert: true }
);
res.status(200).send("Success!");
} catch (error) {
res.status(500).send(`Something went wrong: ${error}`);
}
});
app.delete("/broadcasts/:broadcastId", secureRoute, async (req, res) => {
try {
await Broadcast.deleteOne({ _id: req.params.broadcastId });
res.send("Deleted!");
} catch (error) {
res.status(500).send(`Something went wrong: ${error}`);
}
});
app.get("/broadcasts", async (req, res) => {
try {
const broadcasts = await Broadcast.find({}).populate({
path: "postTo.team",
select: { accessToken: 0 },
});
res.status(200).json(broadcasts);
} catch (error) {
res.status(500).send(`Something went wrong: ${error}`);
}
});
app.post("/slack/send-message", async (req, res) => {
try {
const { message, broadcastId, token } = req.body;
if (token !== process.env.VERIFICATION_TOKEN) {
return res.status(401).send("Unauthorized");
}
const broadcast = await Broadcast.findById(broadcastId)
.populate("postTo.team")
.lean();
if (!broadcast) {
return res.status(404).send("No records found.");
}
const { postTo } = broadcast;
const response = { success: [], failure: [] };
for (const { team, channelId } of postTo) {
const { data } = await postMessage(team.accessToken, channelId, message);
data.ok
? response.success.push({ workspace: team.name })
: response.failure.push({ workspace: team.name, error: data.error });
}
response.failure.forEach(({ workspace, error }) => {
console.log(`Error posting to ${workspace}: ${error}`);
});
return res.status(200).json({
response
});
} catch (err) {
return res.status(500).send(`Something went wrong: ${err}`);
}
});
app.post("/slack/interactive-endpoint", async (req, res) => {
try {
const payload = JSON.parse(req.body.payload);
const { callback_id, trigger_id, team, type, view } = payload;
if (type === "view_submission") {
res.status(200).json({ response_action: "clear" });
const {
state: { values },
} = view;
const broadcastId =
values.broadcastName.broadcastName.selected_option.value;
const broadcastMessage = values.message.message.value;
const broadcast = await Broadcast.findById(broadcastId)
.populate("postTo.team")
.lean();
if (!broadcast) {
return res.status(404).send("No records found.");
}
const { postTo } = broadcast;
const response = { success: [], failure: [] };
for (const { team, channelId } of postTo) {
const { data } = await postMessage(
team.accessToken,
channelId,
broadcastMessage
);
data.ok
? response.success.push({ workspace: team.name })
: response.failure.push({ workspace: team.name, error: data.error });
}
} else if (type === "shortcut") {
if (team.id !== process.env.PARENT_TEAM_ID) {
return res.end();
}
const broadcastForm = require("./forms/broadcastMessage.json");
const broadcasts = await Broadcast.find({}).lean();
const { accessToken } = await Team.findOne({ teamId: team.id });
broadcastForm.view.blocks[0].element.options = broadcasts.map(
(broadcast) => ({
text: {
type: "plain_text",
text: `${broadcast.name}`,
emoji: true,
},
value: `${broadcast._id}`,
})
);
broadcastForm.trigger_id = trigger_id;
const response = await axios({
method: "post",
url: "https://slack.com/api/views.open",
headers: {
Authorization: "Bearer " + accessToken,
"Content-Type": "application/json; charset=utf-8",
},
data: broadcastForm,
});
}
} catch (error) {
res.status(500).send(`Something went wrong: ${error}`);
}
});