Added riddle

- added riddle webpage to download reddit images
pull/3/head
Trivernis 5 years ago
parent c7507fb4f7
commit 229a6b6ee7

2
.gitignore vendored

@ -2,3 +2,5 @@ package-lock
bin
.idea
node_modules
scripts/*
tmp

@ -4,8 +4,9 @@ const createError = require('http-errors'),
cookieParser = require('cookie-parser'),
logger = require('morgan'),
indexRouter = require('./routes/index'),
usersRouter = require('./routes/users');
indexRouter = require('./routes/index'),
usersRouter = require('./routes/users'),
riddleRouter = require('./routes/riddle');
let app = express();
@ -21,6 +22,7 @@ app.use(express.static(path.join(__dirname, 'public')));
app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use(/\/riddle(\/.*)?/, riddleRouter);
// catch 404 and forward to error handler
app.use(function(req, res, next) {

@ -0,0 +1,5 @@
#!/usr/bin/env bash
npm i
git clone https://github.com/trivernis/reddit-riddle ./scripts/reddit-riddle
pip3 install -r ./scripts/reddit-riddle/requirements.txt
mkdir tmp

28
package-lock.json generated

@ -334,11 +334,26 @@
"resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
"integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
},
"fs-extra": {
"version": "7.0.1",
"resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-7.0.1.tgz",
"integrity": "sha512-YJDaCJZEnBmcbw13fvdAM9AwNOJwOzrE4pqMqBq5nFiEqXUqHwlK4B+3pUw6JNvfSPtX05xFHtYy/1ni01eGCw==",
"requires": {
"graceful-fs": "^4.1.2",
"jsonfile": "^4.0.0",
"universalify": "^0.1.0"
}
},
"function-bind": {
"version": "1.1.1",
"resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
"integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
},
"graceful-fs": {
"version": "4.1.15",
"resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.15.tgz",
"integrity": "sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA=="
},
"graceful-readlink": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/graceful-readlink/-/graceful-readlink-1.0.1.tgz",
@ -420,6 +435,14 @@
"resolved": "https://registry.npmjs.org/js-stringify/-/js-stringify-1.0.2.tgz",
"integrity": "sha1-Fzb939lyTyijaCrcYjCufk6Weds="
},
"jsonfile": {
"version": "4.0.0",
"resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-4.0.0.tgz",
"integrity": "sha1-h3Gq4HmbZAdrdmQPygWPnBDjPss=",
"requires": {
"graceful-fs": "^4.1.6"
}
},
"jstransformer": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/jstransformer/-/jstransformer-1.0.0.tgz",
@ -819,6 +842,11 @@
"integrity": "sha1-bgkk1r2mta/jSeOabWMoUKD4grc=",
"optional": true
},
"universalify": {
"version": "0.1.2",
"resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
"integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg=="
},
"unpipe": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",

@ -9,6 +9,7 @@
"cookie-parser": "~1.4.4",
"debug": "~2.6.9",
"express": "~4.16.1",
"fs-extra": "^7.0.1",
"http-errors": "~1.6.3",
"morgan": "~1.9.1",
"pug": "2.0.0-beta11"

@ -0,0 +1,79 @@
function postLocData(postBody) {
let request = new XMLHttpRequest();
return new Promise((res, rej) => {
request.onload = () => {
res({
status: request.status,
data: request.responseText
});
};
request.onerror = () => {
rej(request.error);
};
request.open('POST', '#', true);
request.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
request.send(JSON.stringify(postBody));
});
}
async function startSubredditDownload(subredditName) {
let data = await postLocData({
subreddit: subredditName
});
return JSON.parse(data.data);
}
async function getDownloadStatus(downloadId) {
let data = await postLocData({
id: downloadId
});
return JSON.parse(data.data);
}
async function refreshDownloadInfo(downloadId) {
let response = await getDownloadStatus(downloadId);
let dlDiv = document.querySelector(`.download-container[dl-id='${downloadId}']`);
dlDiv.querySelector('.downloadStatus').innerText = response.status;
let subredditName = dlDiv.getAttribute('subreddit-name');
if (response.status === 'pending') {
setTimeout(() => refreshDownloadInfo(downloadId), 1000)
} else {
let dlLink = document.createElement('a');
dlLink.setAttribute('href', response.file);
dlLink.setAttribute('filename', `${subredditName}`);
for (let cNode of dlDiv.childNodes)
dlLink.appendChild(cNode);
dlDiv.appendChild(dlLink);
setTimeout(() => {
dlDiv.remove();
}, 30000);
}
}
async function submitDownload() {
let subredditName = document.querySelector('#subreddit-input').value;
let response = await startSubredditDownload(subredditName);
let dlDiv = document.createElement('div');
dlDiv.setAttribute('class', 'download-container');
dlDiv.setAttribute('dl-id', response.id);
dlDiv.setAttribute('subreddit-name', subredditName);
document.querySelector('#download-list').prepend(dlDiv);
let subnameSpan = document.createElement('span');
subnameSpan.innerText = subredditName;
subnameSpan.setAttribute('class', 'subredditName');
dlDiv.appendChild(subnameSpan);
let dlStatusSpan = document.createElement('span');
dlStatusSpan.innerText = response.status;
dlStatusSpan.setAttribute('class', 'downloadStatus');
dlDiv.appendChild(dlStatusSpan);
await refreshDownloadInfo(response.id);
}

@ -0,0 +1,99 @@
const express = require('express'),
router = express.Router(),
cproc = require('child_process'),
fsx = require('fs-extra');
const rWordOnly = /^\w+$/;
let downloads = {};
class RedditDownload {
constructor(file) {
this.file = file;
this.status = 'pending';
this.progress = 'N/A';
this.process = null;
}
}
/**
* Generates an id for a subreddit download.
* @param subreddit
* @returns {string}
*/
function generateDownloadId(subreddit) {
return Date.now().toString(16);
}
/**
* Starts the subreddit download by executing the riddle python file.
* @param subreddit {String}
* @returns {string}
*/
function startDownload(subreddit) {
if (rWordOnly.test(subreddit)) {
let downloadId = generateDownloadId(subreddit);
let dlFilePath = `./public/static/${downloadId}.zip`;
let dlWebPath = `/static/${downloadId}.zip`;
let dl = new RedditDownload(dlWebPath);
dl.process = cproc.exec(`python -u riddle.py -o ../../public/static/${downloadId} -z --lzma ${subreddit}`,
{cwd: './scripts/reddit-riddle', env: {PYTHONIOENCODING: 'utf-8', PYTHONUNBUFFERED: true}},
(err, stdout) => {
if (err) {
console.error(err);
} else {
console.log(`riddle.py: ${stdout}`);
}
});
dl.process.on('exit', (code) => {
if (code === 0)
dl.status = 'finished';
else
dl.status = 'failed';
setTimeout(async () => {
await fsx.remove(dlFilePath);
delete downloads[downloadId];
}, 300000); // delete the file after 5 minutes
});
dl.process.on('message', (msg) => {
console.log(msg)
});
downloads[downloadId] = dl;
return downloadId;
}
}
router.use('/files', express.static('./tmp'));
router.get('/', (req, res, next) => {
res.render('riddle');
});
router.post('/', (req, res) => {
if (req.body.subreddit) {
let id = startDownload(req.body.subreddit);
let download = downloads[id];
res.send({id: id, status: download.status, file: download.file});
} else if (req.body.id) {
let id = req.body.id;
let download = downloads[id];
if (download) {
res.send({
id: id,
status: download.status,
file: download.file
});
} else {
res.send({error: 'Unknown download ID', id: id});
}
}
});
module.exports = router;

@ -0,0 +1,10 @@
html
head
title= title
link(rel='stylesheet', href='/stylesheets/style.css')
script(type='text/javascript', src='/javascripts/riddle-web.js')
body
h1 Riddle Reddit downloader
input(type='text' placeholder='subreddit' id='subreddit-input')
button(id='submit-download' onclick='submitDownload()') Download
div(id='download-list')
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