add user feed capability

README.md

@@ -1,6 +1,6 @@
 # Mercury
 
-Simple & Customisable RSS Parser for IRC.
+Simple & Customisable RSS Client for IRC.
 
 This bot is not completed, expect bugs/crashes/errors. Use in production is disadvised at this stage.
 
@@ -8,8 +8,9 @@ This bot is not completed, expect bugs/crashes/errors. Use in production is disa
 
 ## Commands
 
-- `m!feed [FEED] [ENTRIES]` - Return the last x amount of entries from any RSS feed.
+- `m!feed [USER/FEED] [ENTRIES]` - Return the last x amount of entries from any RSS feed or your own saved feeds (if you have saved feeds)
 - `m!twitter [USER] [ENTRIES]` - Return the last x amount of tweets from a particular user.
+- `m!set [CATEGORY] [OPTION] [VALUE]` - Control bot settings, see wiki for info on usage.
 
 ## Deployment
 

bot.js

@@ -22,6 +22,16 @@ var bot = new irc.Client(config.irc.server, config.irc.nickname, {
 
 const timer = ms => new Promise(res => setTimeout(res, ms))
 
+const isValidUrl = urlString=> {
+    var urlPattern = new RegExp('^(https?:\\/\\/)?'+ // validate protocol
+    '((([a-z\\d]([a-z\\d-]*[a-z\\d])*)\\.)+[a-z]{2,}|'+ // validate domain name
+    '((\\d{1,3}\\.){3}\\d{1,3}))'+ // validate OR ip (v4) address
+    '(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*'+ // validate port and path
+    '(\\?[;&a-z\\d%_.~+=-]*)?'+ // validate query string
+    '(\\#[-a-z\\d_]*)?$','i'); // validate fragment locator
+    return !!urlPattern.test(urlString);
+}
+
 async function help(chan, sub) {
     if (sub === undefined) {
         var sub = "default"
@@ -32,9 +42,10 @@ async function help(chan, sub) {
         bot.say(chan, ' / / / / / /  __/ /  / /__/ /_/ / /  / /_/ / ')
         bot.say(chan, '/_/ /_/ /_/\\___/_/   \\___/\\__,_/_/   \\__, /  ')
         bot.say(chan, '                                    /____/   ')
-        bot.say(chan, 'Mercury - https://git.supernets.org/hogwart7/mercury')
+        bot.say(chan, 'Mercury RSS Client - https://git.supernets.org/hogwart7/mercury')
-        bot.say(chan, 'm!feed [FEED] [ENTRIES] - Return the last x amount of entries from any RSS feed')
+        bot.say(chan, 'm!feed [USER/FEED] [ENTRIES] - Return the last x amount of entries from any RSS feed or your own saved feeds (if you have saved feeds)')
         bot.say(chan, "m!twitter [USER] [ENTRIES] - Return the last x amount of tweets from a particular user")
+        bot.say(chan, "m!set [CATEGORY] [OPTION] [VALUE] - Control bot settings, see wiki for info on usage.")
     }
 }
 
@@ -55,30 +66,46 @@ async function opt(chan, user, setting, setting2, value) {
         }
     });
     worker.once('message', (string) => {
-        console.log('Received output from last5 worker, posting.');
+        console.log('Received output from options worker, posting.');
         bot.say(chan, string);
     });
 }
 
-async function feed(chan, provfeed, n) {
+async function feed(chan, nick, provfeed, n) {
     if (provfeed === undefined) {
         bot.say(chan, errorMsg+" No feed has been provided.")
         return;
+    } else if (provfeed === 'me' ) {
+        var provfeed = nick;
     }
     if (n === undefined) {
         var n = config.feed.default_amount;
     }
-    const worker = new Worker('./commands/feed.js', { 
+    if (isValidUrl(provfeed) === false) {
+        const worker = new Worker('./commands/feed-list.js', { 
+            workerData: {
+                provfeed,
+                n,
+                nick
+            }
+        });
+        worker.once('message', (string) => {
+            console.log('Received output from feed-list worker, posting.');
+            bot.say(chan, string);
+        });
+    } else {
+        const worker = new Worker('./commands/feed-preset.js', { 
             workerData: {
                 provfeed,
                 n
             }
         });
         worker.once('message', (string) => {
-        console.log('Received output from last5 worker, posting.');
+            console.log('Received output from feed-preset worker, posting.');
             bot.say(chan, string);
         });
     }
+}
 
 async function twitter(chan, provfeed, n) {
     if (provfeed === undefined) {
@@ -105,7 +132,7 @@ bot.addListener('message', function(nick, to, text, from) {
     if (args[0] === config.irc.prefix+'help') {
         help(to, args[1]);
     } else if (args[0] === config.irc.prefix+'feed') {
-        feed(to, args[1], args[2]);
+        feed(to, nick, args[1], args[2]);
     } else if (args[0] === config.irc.prefix+'twitter') {
         twitter(to, args[1], args[2])
     } else if (args[0] === config.irc.prefix+'set') {

commands/feed-list.js

@@ -0,0 +1,120 @@
+const config = require('../config/default.json')
+const uconfig = require('../config/usersettings.json')
+const { parentPort, workerData } = require('worker_threads');
+const { provfeed, n, nick } = workerData;
+let Parser = require('rss-parser');
+let parser = new Parser({
+    headers: {'User-Agent': config.feed.useragent},
+});
+const striptags = require("striptags");
+const moment = require('moment'); 
+const tz = require('moment-timezone');
+const timer = ms => new Promise(res => setTimeout(res, ms))
+const editJsonFile = require("edit-json-file");
+const { isNumber } = require('util');
+
+warningMsg = ''+config.colours.brackets+'['+config.colours.warning+'WARNING'+config.colours.brackets+']'
+errorMsg = ''+config.colours.brackets+'['+config.colours.error+'ERROR'+config.colours.brackets+']'
+
+async function sendUpstream(content) {
+    var output = content.join("\n")
+    parentPort.postMessage(output);
+    process.exit()
+}
+
+function errorMessage(error, code, extra) {
+    console.log(error.code)
+    if (code == "404") {
+        var error = errorMsg+" 404: " + extra + " not found"
+    } else if (error.code == "ECONNREFUSED") {
+        var error = errorMsg+" Connection Refused ("+extra+")"
+    } else if (error.code == "ERR_UNESCAPED_CHARACTERS"){
+        var error = errorMsg+" Unescaped Characters"
+    } else if (error == "NOFEEDS") { 
+        var error = errorMsg+" No saved feeds for "+provfeed
+    } else {
+        var error = errorMsg+" Unknown error"
+    }
+    
+    parentPort.postMessage(error);
+    process.exit()
+}
+
+async function fetchFeed(feedURL, n, nick) {
+    var content = [];
+    try {
+        var feedsArr = uconfig[nick].feeds
+    } catch (e) {
+        errorMessage(e, "NOFEEDS", nick);
+    }
+    var n = n/feedsArr.length
+    for (let i = 0; i < feedsArr.length; i++) {
+        try {
+            var newFeed = await parser.parseURL(feedsArr[i]);
+        } catch (e) {
+            if (e.code !== undefined) {
+                errorMessage(e, feedsArr[i])
+            } else {
+                errorMessage(e, "404", feedsArr[i]);
+            }
+        }
+        if (n > newFeed.items.length) {
+            var n = newFeed.items.length;
+            content.push(warningMsg+" Your requested post amount exceeded the total available. Reverting to " + newFeed.items.length);
+        } else if (n < 1) {
+            var n = config.feed.default_amount
+            content.push(warningMsg+" You requested a number less than 1. Reverting to default ("+config.feed.default_amount+")");
+        }
+        for (let i = 0; i < n; i++) {
+            var data = newFeed.items[i]
+            var title = data.title.replace(/(\r\n|\n|\r)/gm, " ") //remove line breaks
+                .replace(/\s{2,}/g, ' ') //idk
+            var title = striptags(title);
+            var body = data.contentSnippet.replace(/(\r\n|\n|\r)/gm, " ") //remove line breaks
+                .replace(/\s{2,}/g, ' ') //idk
+            var body = striptags(body);
+        if (data.isoDate !== undefined) {
+                var date = moment(data.isoDate)
+                var syncDate = date.tz(config.feed.timezone)
+                console.log(syncDate.format())
+                var date = syncDate.format(config.feed.time_format)
+            } else {
+                var date = data.pubDate
+            }
+            if (body.length >= config.feed.body_max_chars) {
+                var truncatedString = body.substring(0,config.feed.body_max_chars);
+                var body = truncatedString + "..."
+            }
+            date = ''+config.colours.brackets+'['+config.colours.date+date+''+config.colours.brackets+'] '
+            title = ''+config.colours.title+title+' '
+            author = ''+config.colours.author+data.creator+' '
+            body = ''+config.colours.body+body+' '
+            link = ''+config.colours.link+data.link+' '
+            //console.log(data);
+            //var string = "15[11" + date + "15] 08" + title + " " + body + " " + data.link;
+            var string = date+title+body+link;
+            content.push(string)
+            console.log(content)
+        }
+        //sendUpstream(content);
+    }
+    sendUpstream(content);
+
+    
+}
+
+
+//var file = editJsonFile('/home/node/app/config/usersettings.json');
+//async function getAllFeeds(nick, n) {
+//    console.log(nick)
+//    var feedsArr = uconfig[nick].feeds
+//    console.log(feedsArr)
+//    var num = n/feedsArr.length
+//    for (let i = 0; i < feedsArr.length; i++) {
+//        fetchFeed(feedsArr[i], num);
+//    }
+//    await sendUpstream(content);
+//}
+
+//getAllFeeds(nick, n)
+fetchFeed(provfeed, n, provfeed);

commands/options.js

@@ -1,4 +1,5 @@
 const config = require('../config/default.json')
+const uconfig = require('../config/usersettings.json')
 const { parentPort, workerData } = require('worker_threads');
 const { user, setting, setting2, value } = workerData;
 const fs = require('fs-extra')
@@ -6,18 +7,13 @@ let Parser = require('rss-parser');
 let parser = new Parser({
     headers: {'User-Agent': config.feed.useragent},
 });
-const striptags = require("striptags");
-const moment = require('moment'); 
-const tz = require('moment-timezone');
 const editJsonFile = require("edit-json-file");
 const timer = ms => new Promise(res => setTimeout(res, ms))
 
 warningMsg = ''+config.colours.brackets+'['+config.colours.warning+'WARNING'+config.colours.brackets+']'
 errorMsg = ''+config.colours.brackets+'['+config.colours.error+'ERROR'+config.colours.brackets+']'
 
-
 async function sendUpstream(content) {
-    //var output = content.join("\n")
     parentPort.postMessage(content);
     process.exit()
 }
@@ -32,6 +28,8 @@ function errorMessage(error, code, extra) {
         var error = errorMsg+" Unescaped Characters"
     } else if (code == "INVALID") {
         var error = errorMsg+' '+extra+' either does not exist or is not a valid feed.'
+    } else if (code == "ALREADYEXISTS" ) { 
+        var error = errorMsg+' '+extra+' already exists in your feed list.'
     } else {
         var error = errorMsg+" Unknown error"
     }
@@ -53,19 +51,16 @@ async function feed(nick, setting, value) {
     if (setting === 'add') {
         await testFeed(value);
         var file = editJsonFile('/home/node/app/config/usersettings.json');
+        var feedsArr = uconfig[nick].feeds
+        if (feedsArr.includes(value) == true) {
+            errorMessage("null", "ALREADYEXISTS", value)
+        } else {
             file.append(nick+".feeds", value);
             file.save();
             sendUpstream(value + ' added to your feed list')
-        //file.custom.feed.nick = value;
-        //fs.writeFile(file, JSON.stringify({ feed: value }))
-
         }
     }
-
+}
-
-//fs.readFile('../config/feeds.json').catch(() =>
-//    fs.writeFile('../config/feeds.json', '')
-//);
 
 if (setting === 'feed') {
     feed(user, setting2, value);