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const express = require("express");
const api = require("./api/v1");
const git = require("./api/git");
const yaml = require('js-yaml');
const fs = require('fs');
const { exit } = require("process");
const sanitization = require("./api/sanitization");
let settings;
try {
settings = yaml.load(fs.readFileSync("./settings.yml", 'utf8'));
} catch(e) {
throw(e);
}
const mandatory_settings = ["host", "port", "title", "about", "base_dir"];
const missing_settings_key = mandatory_settings.find(key => settings.hasOwnProperty(key) === false);
if(missing_settings_key) {
console.error(`Error: missing key in settings.yml: ${missing_settings_key}`);
exit(1);
}
const app = express();
app.get(/.*\.(css|js|ico)$/, (req, res, next) =>
{
fs.access(`dist${req.path}`, err =>
{
if(err) {
next();
return;
}
res.sendFile(`dist${req.path}`, { root: __dirname });
});
});
app.use("/api/v1", (req, res, next) =>
{
req.settings = settings;
next();
}, api);
app.use("/:repo", async (req, res, next) =>
{
if(!sanitization.sanitizeRepoName(req.params.repo)) {
res.status(400).json({ "error": "Unacceptable git repository name!" });
return;
}
fs.readdir(settings["base_dir"], (err, dir_content) =>
{
if(err) {
res.status(404).send("404: Page not found");
return;
}
dir_content = dir_content.filter(repo => repo.endsWith(".git"));
if(!dir_content.includes(req.params.repo + ".git")) {
res.status(404).send("404: Page not found");
return;
}
else {
next();
}
});
})
app.get("/:repo", (req, res) =>
{
res.redirect(`/${req.params.repo}/log`);
});
app.get("/:repo/:page", (req, res, next) =>
{
const pages = ["log", "refs", "tree"];
if(!pages.includes(req.params.page)) {
next();
return;
}
res.sendFile("dist/app.html", { root: __dirname });
});
app.get("/:repo/log/:commit", (req, res, next) =>
{
if(!sanitization.sanitizeCommitID(req.params.commit)) {
next();
return;
}
res.sendFile("dist/app.html", { root: __dirname });
});
app.get("/", (req, res) =>
{
res.sendFile("dist/app.html", { root: __dirname });
});
app.use((req, res) =>
{
res.status(404).send("404: Page not found");
});
app.listen(settings["port"], settings["host"], () => console.log(`App is running on ${settings["host"]}:${settings["port"]}`));
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