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memrise_client.js
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memrise_client.js
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// ==UserScript==
// @name Upload audio to Memrise
// @namespace http://tampermonkey.net/
// @version 0.1
// @description Automatically finds words without audios in memrise course and uploads the audio
// @author balta2ar
// @match https://decks.memrise.com/course/*/edit/*
// @require http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js
// @grant GM_addStyle
// @grant GM_xmlhttpRequest
// ==/UserScript==
(function() {
'use strict';
/**
* Display error if an AJAX request fails.
* @param {string} prefix Prefix to add before the error message.
* @param {object} response Problematic response.
*/
function showError(prefix, response) {
var msg = prefix + ": an error occurred." +
"\nresponseText: " + response.responseText +
"\nreadyState: " + response.readyState +
"\nresponseHeaders: " + response.responseHeaders +
"\nstatus: " + response.status +
"\nstatusText: " + response.statusText +
"\nfinalUrl: " + response.finalUrl;
console.log(msg);
}
/**
* Universal method that performs AJAX call.
* @param {string} method 'GET' or 'POST'.
* @param {string} url URL to access.
* @param {function} callback Function to call upon success.
* @param {object} headers Additional headers.
* @param {object} data AJAX data to pass with the request.
*/
function callAjax(method, url, callback, headers, data){
var query = {
method: method, //"POST", // GET
url: url,
synchronous: true,
onload: function(response) {
//alert('onload RECEIVED' + response.responseText);
try {
callback(JSON.parse(response.responseText));
} catch (e) {
console.log('onload RECEIVED' + response.responseText);
console.log(e);
}
},
onerror: function(response) {
showError("callAjax onerror", response);
console.log(query);
},
};
if (headers) {
query.headers = headers;
}
if (data) {
query.data = data;
}
GM_xmlhttpRequest(query);
}
/**
* Rertrieve audio for the given word. Calls `onsuccess` upon success.
* @param {string} word Word to get audio for.
* @param {function} onsuccess Callback to call on success.
*/
function getAudioForWord(word, onsuccess) {
callAjax("GET",
"http://localhost:5000/api/get_audio/" + encodeURIComponent(word),
// "https://localhost:5000/api/get_audio/" + encodeURIComponent(word),
onsuccess,
null,
null);
}
/**
* Convert result returned by memrise_server.py into a blob. memrise_server
* returns result in a base64 format. It should be decoded and converted
* into a Blob, to be used in FormData later.
* @param result Result from memrise_server.
@ @return Blob that is ready to be used in FormData.
*/
function resultToBlob(result) {
MEMRISE.RESULT = result;
var byteString = atob(result.base64_data);
var mimeString = 'audio/mp3';
var ab = new ArrayBuffer(byteString.length);
var ia = new Uint8Array(ab);
for (var i = 0; i < byteString.length; i++)
{
ia[i] = byteString.charCodeAt(i);
}
var bb = new Blob([ab], { "type": mimeString });
MEMRISE.byteString = byteString;
MEMRISE.ab = ab;
MEMRISE.ia = ia;
MEMRISE.bb = bb;
return bb;
}
function uploadAudio(result, uploadFormParams, onsuccess) {
// https://www.memrise.com/ajax/thing/cell/upload_file/
var formdata = new FormData();
for (var p in uploadFormParams) {
formdata.append(p, uploadFormParams[p]);
}
var blob = resultToBlob(result);
formdata.append('f', blob, 'sound.mp3');
// I'm using jQuery ajax here because GM_xmlhttpRequest often
// resulted in invalid CSRF token reply from memrise server.
//
// https://stackoverflow.com/questions/6974684/how-to-send-formdata-objects-with-ajax-requests-in-jquery
var query = {
type: 'POST',
url: 'https://decks.memrise.com/ajax/thing/cell/upload_file/',
//dataType: 'JSON',
data: formdata,
processData: false,
contentType: false,
//contentType: 'multipart/form-data',
success: function (response) {
console.log(response);
onsuccess(response);
},
error: function(response) {
showError("uploadAudio onerror 2", response);
console.log(query);
console.log(response);
console.log(result);
},
};
$.ajax(query);
/*
Sample requests:
------WebKitFormBoundary7wGHsJmxhEeD9hSN
Content-Disposition: form-data; name="thing_id"
129422029
------WebKitFormBoundary7wGHsJmxhEeD9hSN
Content-Disposition: form-data; name="cell_id"
3
------WebKitFormBoundary7wGHsJmxhEeD9hSN
Content-Disposition: form-data; name="cell_type"
column
------WebKitFormBoundary7wGHsJmxhEeD9hSN
Content-Disposition: form-data; name="csrfmiddlewaretoken"
ErZhxGeMIZv3RAoapqUhoezixqgdaRo8EvYlMJIiH8rAfTn1po00DvJBiYGSswfB
------WebKitFormBoundary7wGHsJmxhEeD9hSN
Content-Disposition: form-data; name="f"; filename="translate_tts.mp3"
Content-Type: audio/mp3
*/
}
function onUploadedSuccessfully(result, thing, buttons) {
var wrapper = document.createElement('div');
wrapper.innerHTML = result.rendered;
var audioBlock = thing.children[3];
var newAudioColumn = wrapper.children[0]; //wrapper.firstChild;
var oldAudioColumn = audioBlock.children[0];
audioBlock.removeChild(oldAudioColumn);
audioBlock.appendChild(newAudioColumn);
}
function onWordNotFound(result, thing, buttons) {
buttons.innerHTML = 'NOT FOUND';
}
function onAddAudio(word, uploadFormParams, thing, buttons) {
//callAjax("http://localhost:5000/api/get_audio/" + encodeURIComponent(word), displayResult);
getAudioForWord(word, function(result) {
if (result.success) {
console.log(result);
uploadAudio(result, uploadFormParams, function(uploadResult) {
console.log('UPLOADED');
onUploadedSuccessfully(uploadResult, thing, buttons);
});
} else {
console.error('Cound not find audio for word: ' + word);
onWordNotFound(result, thing, buttons);
}
});
}
/**
* Find levels and expand/collapse them (toggle, click on them).
* @param {levelSelector} string Selector that is used to find levels.
* @param {max_levels} int Expand not more than this number of levels.
*/
function toggleExpandCollapseLevels(levelSelector, maxLevels) {
// var uncollapsedLevels = document.querySelectorAll('.level:not(.collapsed)');
var uncollapsedLevels = document.querySelectorAll(levelSelector);
var limit = Math.min(maxLevels, uncollapsedLevels.length);
for (var i = 0; i < limit; i++) {
console.log('expanding: ' + i);
var level = uncollapsedLevels[i];
var showHideButton = level.getElementsByClassName('show-hide btn btn-small');
showHideButton[0].click();
}
}
function createStartButton() {
var startButton = document.createElement('li');
startButton.setAttribute('class', 'header-nav-item plain');
//startButton.innerHTML = 'Add missing audio [bz]';
startButton.innerHTML = '<a class="nav-item-btn"> <span class="nav-item-btn-text">+♫</span> </a>';
startButton.addEventListener('click', function(event) { clickAllAddAudioButtons(); } );
return startButton
}
function createDeleteButton() {
var deleteButton = document.createElement('li');
deleteButton.setAttribute('class', 'header-nav-item plain');
deleteButton.innerHTML = '<a class="nav-item-btn"> <span class="nav-item-btn-text">–♫</span> </a>';
deleteButton.addEventListener('click', function(event) { clickAllDeleteButtons(); } );
return deleteButton
}
var MAX_EXPAND = 5;
var SELECTOR_COLLAPSED = '.level.collapsed';
var SELECTOR_EXPANDED = '.level:not(.collapsed)';
function createExpandButton() {
var expandButton = document.createElement('li');
expandButton.setAttribute('class', 'header-nav-item plain');
expandButton.innerHTML = '<a class="nav-item-btn"> <span class="nav-item-btn-text"><' + MAX_EXPAND + '></span> </a>';
expandButton.addEventListener('click', function(event) { toggleExpandCollapseLevels(SELECTOR_COLLAPSED, MAX_EXPAND); } );
return expandButton
}
function createCollapseButton() {
var collapseButton = document.createElement('li');
collapseButton.setAttribute('class', 'header-nav-item plain');
collapseButton.innerHTML = '<a class="nav-item-btn"> <span class="nav-item-btn-text">>' + MAX_EXPAND + '<</span> </a>';
collapseButton.addEventListener('click', function(event) { toggleExpandCollapseLevels(SELECTOR_EXPANDED, MAX_EXPAND); } );
return collapseButton
}
/**
* This function adds main buttons: Add, Remove, Expand, Collapse.
* Add - adds audio to all words on the page that don't have an audio yet.
* Remove - removes all audios.
* This function also starts a reoccuring timer events that when fire,
* tries to:
* 1. add "ConvertToTabs" button to all bulk upload dialogs.
* 2. find words without an audio and add "Upload" button to the button group.
*/
function addButtons() {
// TODO: add buttons not only to header but also to AddLevel panel
// so that when header is removed in memrise_syncher, buttons are
// still available.
var header = document.querySelector('ul.header-nav');
var add_level_group = document.querySelector(
'.btn-group.pull-left').querySelector('.dropdown-menu');
if (header) {
header.appendChild(createStartButton());
header.appendChild(createDeleteButton());
header.appendChild(createExpandButton());
header.appendChild(createCollapseButton());
}
if (add_level_group) {
add_level_group.appendChild(createStartButton());
add_level_group.appendChild(createDeleteButton());
add_level_group.appendChild(createExpandButton());
add_level_group.appendChild(createCollapseButton());
}
//var bulkAddButton = document.createElement('li');
//bulkAddButton.setAttribute('class', 'header-nav-item plain');
//bulkAddButton.innerHTML = '<a class="nav-item-btn"> <span class="nav-item-btn-text">Bulk add</span> </a>';
//bulkAddButton.addEventListener('click', function(event) { alert("BULK ADD NOT IMPLEMENTED"); } );
//header.appendChild(bulkAddButton);
setInterval(function() { tryAddConvertToTabs(); }, 1000);
setInterval(function() { findMissingAndAddUpload(); }, 1000);
}
/**
* This function is trying to find a tag that has matching text withing
* a given container.
* @param container {DOMElement} DOM element to search in.
* @param tagName <tag_name> to search for.
* @param text Text to search for.
@ @return DOMElement if found, null otherwise.
*/
function findLastTagWithText(container, tagName, text) {
var aTags = container.getElementsByTagName(tagName);
var searchText = text;
var result = null;
for (var i = 0; i < aTags.length; i++) {
if (aTags[i].textContent == searchText) {
result = aTags[i];
}
}
return result;
}
/**
* This function locates all textareas in the document, breaks the input
* into lines, and replaces first tabular character in each line with a ";"
* (semicolon). It's helpful because I prefer to keep new words in my
* memos in the format as follows:
* <korean_word>; translation; more comments; etc...
*/
function onConvertTabs() {
var textareas = document.querySelectorAll('textarea');
if (!textareas) {
console.log("textareas not found");
return;
}
for (var index = 0; index < textareas.length; index++) {
var textarea = textareas[index];
// We need to process each line separately as we only need
// to replace the first occurence of \t in each line.
var lines = textarea.value.match(/[^\r\n]+/g);
try {
for (var i = 0; i < lines.length; i++) {
lines[i] = lines[i].replace(/;/, '\t');
}
lines = lines.join('\n');
textarea.value = lines;
} catch (e) {
console.log(e);
}
}
console.log("converted text to tabs");
}
/**
* Try to find all dialogs with "Add" button and append "ConvertToTabs".
*/
function tryAddConvertToTabs() {
var addButton = findLastTagWithText(document, "a", "Add");
if (addButton) {
//console.log("FOUND add button");
var convertTabsButton = findLastTagWithText(addButton.parentNode, "a", "ConvertTabs");
if (convertTabsButton) {
//console.log("FOUND convert tabs button");
} else {
// class="btn column-editor-close"
convertTabsButton = document.createElement('a');
convertTabsButton.setAttribute('class', 'btn');
convertTabsButton.innerHTML = 'ConvertTabs';
convertTabsButton.addEventListener('click', function(event) { onConvertTabs(); } );
addButton.parentNode.appendChild(convertTabsButton);
console.log("ADDED convert tabs button");
}
}
}
/**
* Add Upload button for one thing. Thing is a row in Memrise table.
* It contains a word, translation, and and a block with audio buttons.
* This function adds HTML code of a an Add button into the page.
* @param thing Thing (row) to add Upload button to.
* @return true if successfully added Upload button.
*/
function addUploadButtonForThing(thing) {
var buttons = thing.querySelector('button.btn.btn-mini.dropdown-toggle.disabled');
if (buttons === null) {
return false;
}
var buttonGroup = buttons.parentNode;
// is there already add button?
var addAudioButton = findLastTagWithText(buttonGroup.parentNode, "div", "AddAudio");
if (addAudioButton) {
return false;
}
var firstElement = buttons.parentNode.parentNode.parentNode.getElementsByClassName('text')[0];
var word = firstElement.innerText.trim().replace(/\//, '_');
var thingId = thing.getAttribute('data-thing-id');
var uploadFormParams = {
thing_id: thingId,
cell_id: "3",
cell_type: "column",
csrfmiddlewaretoken: MEMRISE.csrftoken
};
var customUploadButton = document.createElement('div');
//<div class="btn btn-mini open-recorder">Record</div>
// I use additional class "btn-bz-add-audio" to make it easier
// to find these buttons later in memrise_syncher when adding
// pronunciation automatically.
customUploadButton.setAttribute('class', 'btn btn-mini btn-bz-add-audio');
customUploadButton.setAttribute('title', 'AddAudio');
//customUploadButton.setAttribute('onclick', 'onAddAudio(' + word + ')');
customUploadButton.addEventListener('click', function(event) {
onAddAudio(word, uploadFormParams, thing, buttons);
});
// onAddAudio(word, uploadFormParams, thing, buttons);
customUploadButton.innerHTML = 'AddAudio';
buttonGroup.appendChild(customUploadButton);
//callAjax("http://localhost:5000/api/get_audio/" + encodeURIComponent(word), displayResult);
return true;
}
/**
* Click all Delete buttons to remove audio from all words that are
* visible on the page.
*/
function clickAllDeleteButtons() {
var deleteButtons = document.querySelectorAll('[title="Delete this audio file"]');
for (var i = 0; i < deleteButtons.length; i++) {
var deleteButton = deleteButtons[i];
deleteButton.click();
}
}
/**
* Click all Add buttons to automatically retrieve audio from
* memrise_server for all the words.
*/
function clickAllAddAudioButtons() {
var addAudioButtons = document.querySelectorAll('[title="AddAudio"]');
for (var i = 0; i < addAudioButtons.length; i++) {
var addAudioButton = addAudioButtons[i];
addAudioButton.click();
}
}
/**
* Scan all words in the table, find those who are missing audios and
* append Upload button to each one of them.
*/
function findMissingAndAddUpload() {
var things = document.getElementsByClassName('thing');
for (var i = 0; i < things.length; i++) {
if (i >= 9999) {
break;
}
var thing = things[i];
if (addUploadButtonForThing(thing)) {
//break;
}
}
}
// Add all main buttons after a while
setTimeout(function() { addButtons(); }, 1000);
})();