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var base_url = undefined
let formats = ["Atom", "Mrss", "Html"]
let types = {
'application/rss+xml': "rss",
'application/atom+xml': "atom",
'application/rdf+xml': "rdf",
'application/rss': "rss",
'application/atom': "atom",
'application/rdf': "rdf",
'text/rss+xml': "rss",
'text/atom+xml': "atom",
'text/rdf+xml': "rdf",
'text/rss': "rss",
'text/atom': "atom",
'text/rdf': "rdf"
}
function normalize_feed_url(feed_url) {
if (feed_url.startsWith('/')) {
let url = window.location.href
feed_url = url.split('/')[0] + '//' + url.split('/')[2] + feed_url;
}
return feed_url
}
function find_links_in_page() {
let links = document.querySelectorAll('link[type]');
let feeds = [];
for (let i = 0; i < links.length; i++) {
if (links[i].hasAttribute('type') && links[i].getAttribute('type') in types) {
let title = links[i].getAttribute('title')
let feed_url = normalize_feed_url(links[i].getAttribute('href'));
let type = types[links[i].getAttribute('type')]
let feed = {
type: `native: ${title || type}`,
url: feed_url,
};
feeds.push(feed);
}
}
return feeds
}
function get_all_types(feed_url) {
let feeds = [];
formats.forEach(el => {
feeds.push({
type: `rss-bridge: ${el}`,
url: feed_url + el
});
})
return feeds;
}
async function get_insta(url) {
let insta_url = url + "?__a=1"
console.log("fetching")
let res = await fetch(insta_url);
let json = await res.json();
let uid = json.graphql.user.id
let feed_url = `${base_url}/?action=display&bridge=Instagram&context=Username&u=${uid}&media_type=all&format=`;
return get_all_types(feed_url)
}
function get_twitter(url) {
let pattern = /twitter.com\/(\w+).*/
let match = url.match(pattern);
if (match) {
let twitter_handle = match[1]
let feed_url = `${base_url}/?action=display&bridge=Twitter&context=By+username&u=${twitter_handle}&format=`
return get_all_types(feed_url)
}
return []
}
async function get_youtube(url) {
// use link to channel if given a video url
let patternVideo = /youtube.com\/watch\?v=\w+/
if (url.match(patternVideo)) {
url = document.querySelector("#channel-name a")["href"]
}
let patternUser = /youtube.com\/user\/(\w+).*/
let matchUser = url.match(patternUser)
let patternChannel = /youtube.com\/channel\/(\w+).*/
let matchChannel = url.match(patternChannel)
let patternPlaylist = /youtube.com\/playlist\?list=(\w+)/
let matchPlaylist = url.match(patternPlaylist)
if (matchUser) {
let user = matchUser[1];
let feed_url = `${base_url}/?action=display&bridge=Youtube&context=By+username&u=${user}&duration_min=&duration_max=&format=`
return get_all_types(feed_url)
} else if (matchChannel) {
let channelId = matchChannel[1]
let feed_url = `${base_url}/?action=display&bridge=Youtube&context=By+channel+id&c=${channelId}&duration_min=&duration_max=&format=`
return get_all_types(feed_url)
} else if (matchPlaylist) {
let playlistId = matchPlaylist[1]
let native_url = `https://www.youtube.com/feeds/videos.xml?playlist_id=${playlistId}`
let feed_url = `${base_url}/?action=display&bridge=Youtube&context=By+playlist+Id&p=${playlistId}&duration_min=&duration_max=&format=`
let rb_feeds = get_all_types(feed_url)
return rb_feeds.concat([{ type: `native: Rss`, url: native_url }])
}
return []
}
async function get_feed_urls() {
let settings = await browser.storage.sync.get("rb");
base_url = settings.rb;
let all_feed_urls = []
let url = window.location.href;
//url = url.toLowerCase()
if (url.includes("instagram")) {
all_feed_urls = all_feed_urls.concat(await get_insta(url))
} else if (url.includes("twitter")) {
all_feed_urls = all_feed_urls.concat(get_twitter(url))
} else if (url.includes("youtube")) {
all_feed_urls = all_feed_urls.concat(await get_youtube(url))
}
all_feed_urls = all_feed_urls.concat(find_links_in_page())
return all_feed_urls
}
browser.runtime.onMessage.addListener(function (msg, sender) {
return Promise.resolve(get_feed_urls());
})
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