73 lines
2.3 KiB
JavaScript
73 lines
2.3 KiB
JavaScript
console.log("background.js started");
|
|
|
|
var baseUrl = "";
|
|
|
|
function getCurrentDate() {
|
|
let today = new Date();
|
|
let yyyy = today.getFullYear();
|
|
let mm = String(today.getMonth() + 1).padStart(2, '0'); //January is 0!
|
|
let dd = String(today.getDate()).padStart(2, '0');
|
|
return yyyy + mm + dd;
|
|
}
|
|
|
|
function onSuccess(result) {
|
|
console.log(`background.js: onSuccess(): Promise resolved with result '${JSON.stringify(result)}'`);
|
|
}
|
|
|
|
function onFailure(error) {
|
|
console.log(`background.js: onFailure(): Promise rejected with error '${error}'`);
|
|
}
|
|
|
|
// actually download an attached file
|
|
async function downloadFile(url, filename, saveAs=false) {
|
|
console.log(`background.js: downloadFile(): url is '${url}' and filename is '${filename}'`);
|
|
return browser.downloads.download({
|
|
url: new URL(url, baseUrl).toString(),
|
|
filename: filename,
|
|
saveAs: saveAs // raise a path chooser dialog if true
|
|
});
|
|
}
|
|
|
|
// sequentially initiate download for each attached file
|
|
async function downloadAllFiles(urlsAndFilenames) {
|
|
const currentDate = getCurrentDate();
|
|
|
|
for (let i = 0; i < urlsAndFilenames.length; i++) {
|
|
// prefix filename
|
|
let prefixedFilename = currentDate + " " + urlsAndFilenames[i].filename;
|
|
console.log(`background.js: downloadAllFiles(): i is ${i}`);
|
|
await downloadFile(urlsAndFilenames[i].url, prefixedFilename, true).then(onSuccess, onFailure);
|
|
}
|
|
}
|
|
|
|
// page action handler
|
|
function handlePageactionClick(tab) {
|
|
console.log("background.js: handlePageactionClick(): sending message");
|
|
|
|
// get base url
|
|
browser.tabs.query({
|
|
currentWindow: true,
|
|
active: true
|
|
})
|
|
.then(tabs => {
|
|
console.log(`background.js: handlePageactionClick(): tab query returned ${JSON.stringify(tabs)}`);
|
|
baseUrl = tabs[0].url;
|
|
})
|
|
|
|
// send message to content script which will trigger said content script
|
|
browser.tabs.sendMessage(
|
|
tab.id,
|
|
"pageAction was clicked"
|
|
)
|
|
.then(message => {
|
|
console.log(`background.js: received a response from contentscript.js with content ${JSON.stringify(message.urlsAndFilenames)}`);
|
|
downloadAllFiles(message.urlsAndFilenames);
|
|
})
|
|
.catch(error =>
|
|
console.error(`background.js: handlePageactionClick(): The following error occured while handling a page action: ${error}`)
|
|
)
|
|
}
|
|
|
|
// add listener for the extension button
|
|
browser.pageAction.onClicked.addListener(handlePageactionClick);
|