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background.js
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background.js
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$(function() {
// Variable to hold the url for the last song to play
var currentSongUrl = undefined;
// Setup the listener for pandora's outgoing requests
chrome.webRequest.onBeforeRequest.addListener(( details ) => {
// console.log( details.url );
// Test the url against a regex of the different locations the songs live!
if ( details.url.match( /(https?.*.com\/access\/.*)/i ) ) {
console.log('Found media file!', details.url);
// Save the url
currentSongUrl = details.url;
// Let content.js know that we have a new song url
sendMessage( "newSong" );
}
}, { urls: ['<all_urls>'] } );
// Send a message to content.js
function sendMessage( type, data ) {
// chrome.tabs.query( {active: true, currentWindow: true}, function(tabs) {
chrome.tabs.query( {url: "*://www.pandora.com/*"}, (tabs) => {
chrome.tabs.sendMessage( tabs[0].id, {
type: type,
data: data
}, function( response ) {});
});
}
// Message handler for content.js which downloads a song
chrome.runtime.onMessage.addListener(( request, sender, sendResponse ) => {
var song = '(' + request.title + ' - ' + request.artist + ')';
// This shouldn't be possible anymore
// If the information isn't available yet, don't do anything
if ( request.title == "" ) {
sendMessage( "info", 'The song info wasn\'t passed in! Wait for the page to finish loading.' );
return 0;
}
// sendMessage( "info", "Should be trying to download " + request.title );
// This shouldn't be possible anymore
// If no song url has been captured don't do anything
if ( currentSongUrl === undefined ) {
sendMessage( "info", 'The song url hasn\'t been captured! Skip to the next song, and get this one later.' );
return 0;
}
// The song url has been captured, lets download it!
sendMessage( "info", 'Starting download for - ' + song );
sendMessage( "disableDownloadButton" );
// Send the url to a python server to download the song!
$.ajax({
type: 'POST',
url: 'http://127.0.0.1:5000/download',
data: $.extend( request, {url: currentSongUrl} ),
// Handle the responses we can get
success: ( data ) => {
if ( data.status == 'alreadyDownloaded' ) {
sendMessage( "info", 'Song has already been downloaded!' )
}
if ( data.status == 'success' ) {
sendMessage( "info", 'Successfully downloaded - ' + song )
}
},
dataType: 'json',
// async: false
})
.fail(() => {
sendMessage( "info", "The web server isn't running!" );
sendMessage( "enableDownloadButton" );
});
});
})