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import express, { Router } from "express";
import { JSDOM } from "jsdom";
import { badgen } from "badgen";
import winston from "winston";
import path from "path";
import fs from "fs";
import formats, { GradientStyle } from "./formats";
import Metadata, { HeadIdentity } from "./metadata";
import { configOrError } from "./util/config";
import loggerConfig from "./util/logger";
import { Messages } from "./errors";
const TOKEN = process.env.TOKEN ?? "";
const UPLOAD_LIMIT = Number(process.env.UPLOAD_LIMIT ?? 4194304);
const HOST_DIR = configOrError("HOST_DIR");
const logger = winston.createLogger(loggerConfig("HTTP"));
export default (metadata: Metadata): Router => {
const router = Router();
// serve landing page
router.get("/", (_, res) => {
res.sendFile(path.join(HOST_DIR, "index.html"));
});
// serve script for posting coverage report
router.use(
"/bash",
express.static(path.join(HOST_DIR, "bash"), {
setHeaders: res => res.contentType("text/plain")
})
);
// serve static files
// favicon should be served directly on root
router.get("/favicon.ico", (_, res) => {
res.sendFile(path.join(__dirname, "..", "public", "static", "favicon.ico"));
});
router.use(
"/static",
express.static(path.join(__dirname, "..", "public", "static"))
);
// Upload HTML file
router.post("/v1/:org/:repo/:branch/:commit.html", (req, res) => {
const { org, repo, branch, commit } = req.params;
const { token, format } = req.query;
//TODO @Metadata token should come from metadata
if (token != TOKEN) {
return res.status(401).send(Messages.InvalidToken);
}
if (typeof format !== "string" || !formats.listFormats().includes(format)) {
return res.status(406).send(Messages.InvalidFormat);
}
let contents = "";
req.on("data", raw => {
if (contents.length + raw.length > UPLOAD_LIMIT) {
res.status(413).send(Messages.FileTooLarge);
} else {
contents += raw;
}
});
req.on("end", () => {
let coverage: number;
const doc = new JSDOM(contents).window.document;
const formatter = formats.getFormat(format);
const result = formatter.parseCoverage(doc);
if (typeof result === "number") {
coverage = result;
} else {
return res.status(400).send(result.message);
}
const reportPath = path.join(HOST_DIR, org, repo, branch, commit);
fs.promises
.mkdir(reportPath, { recursive: true })
.then(
() =>
//TODO @Metadata stage values should come from metadata
new Promise<GradientStyle>(solv => solv({ stage1: 95, stage2: 80 }))
)
.then(
style =>
new Promise(solv =>
solv(
badgen({
label: "coverage",
status: Math.floor(coverage).toString() + "%",
color: formatter.matchColor(coverage, style)
})
)
)
)
.then(badge =>
fs.promises.writeFile(path.join(reportPath, "badge.svg"), badge)
)
.then(() =>
fs.promises.writeFile(path.join(reportPath, "index.html"), contents)
)
.then(() =>
metadata.updateBranch({
organization: org,
repository: repo,
branch,
head: commit
})
)
.then(result =>
result
? res.status(200).send()
: res.status(500).send(Messages.UnknownError)
)
.catch(err => {
logger.error(
err ?? "Unknown error occurred while processing POST request"
);
return res.status(500).send(Messages.UnknownError);
});
});
});
const retrieveFile = (
res: express.Response,
identity: HeadIdentity,
file: string
): void => {
const { organization: org, repository: repo, branch, head } = identity;
const pathname = path.join(HOST_DIR, org, repo, branch, head, file);
fs.access(pathname, fs.constants.R_OK, err =>
err === null
? res.sendFile(pathname)
: res.status(404).send(Messages.FileNotFound)
);
};
router.get("/v1/:org/:repo/:branch.svg", (req, res) => {
const { org, repo, branch } = req.params;
metadata.getHeadCommit(org, repo, branch).then(
result => {
if (typeof result === "string") {
const identity = {
organization: org,
repository: repo,
branch,
head: result.toString()
};
retrieveFile(res, identity, "badge.svg");
} else {
res.status(404).send(result.message);
}
},
err => {
logger.error(
err ?? "Error occurred while fetching commit for GET request"
);
res.status(500).send(Messages.UnknownError);
}
);
});
router.get("/v1/:org/:repo/:branch.html", (req, res) => {
const { org, repo, branch } = req.params;
metadata.getHeadCommit(org, repo, branch).then(
result => {
if (typeof result === "string") {
const identity = {
organization: org,
repository: repo,
branch,
head: result.toString()
};
retrieveFile(res, identity, "index.html");
} else {
res.status(404).send(result.message);
}
},
err => {
logger.error(
err ?? "Error occurred while fetching commit for GET request"
);
res.status(500).send(Messages.UnknownError);
}
);
});
// provide hard link for commit
router.get("/v1/:org/:repo/:branch/:commit.svg", (req, res) => {
const { org, repo, branch, commit } = req.params;
const identity = {
organization: org,
repository: repo,
branch,
head: commit
};
retrieveFile(res, identity, "badge.svg");
});
// provide hard link for commit
router.get("/v1/:org/:repo/:branch/:commit.html", (req, res) => {
const { org, repo, branch, commit } = req.params;
const identity = {
organization: org,
repository: repo,
branch,
head: commit
};
retrieveFile(res, identity, "index.html");
});
return router;
};
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