mirror of
https://github.com/ether/etherpad-lite.git
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async-ify more functions, and await completion
Where feasible I put the await at the end of the function to minimize the impact on latency. My motivation for this change: Eliminate a race condition in tests I am writing.
This commit is contained in:
Richard Hansen
John McLear
parent
45ec8326f0
commit
3365e944bf
8 changed files with 78 additions and 70 deletions
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@ -203,11 +203,10 @@ exports.setText = async function(padID, text)
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// get the pad
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let pad = await getPadSafe(padID, true);
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// set the text
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pad.setText(text);
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// update the clients on the pad
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padMessageHandler.updatePadClients(pad);
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await Promise.all([
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pad.setText(text),
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padMessageHandler.updatePadClients(pad),
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]);
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}
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/**
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@ -226,12 +225,11 @@ exports.appendText = async function(padID, text)
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throw new customError("text is not a string", "apierror");
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}
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// get and update the pad
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let pad = await getPadSafe(padID, true);
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pad.appendText(text);
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// update the clients on the pad
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padMessageHandler.updatePadClients(pad);
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await Promise.all([
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pad.appendText(text),
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padMessageHandler.updatePadClients(pad),
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]);
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}
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/**
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@ -287,7 +285,7 @@ exports.setHTML = async function(padID, html)
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// add a new changeset with the new html to the pad
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try {
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importHtml.setPadHTML(pad, cleanText(html));
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await importHtml.setPadHTML(pad, cleanText(html));
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} catch (e) {
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throw new customError("HTML is malformed", "apierror");
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}
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@ -373,7 +371,7 @@ exports.appendChatMessage = async function(padID, text, authorID, time)
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// @TODO - missing getPadSafe() call ?
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// save chat message to database and send message to all connected clients
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padMessageHandler.sendChatMessageToPadClients(time, authorID, text, padID);
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await padMessageHandler.sendChatMessageToPadClients(time, authorID, text, padID);
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}
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/*****************/
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@ -454,7 +452,7 @@ exports.saveRevision = async function(padID, rev)
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}
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let author = await authorManager.createAuthor('API');
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pad.addSavedRevision(rev, author.authorID, 'Saved through API call');
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await pad.addSavedRevision(rev, author.authorID, 'Saved through API call');
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}
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/**
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@ -575,11 +573,10 @@ exports.restoreRevision = async function(padID, rev)
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var changeset = builder.toString();
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// append the changeset
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pad.appendRevision(changeset);
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// update the clients on the pad
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padMessageHandler.updatePadClients(pad);
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await Promise.all([
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pad.appendRevision(changeset),
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padMessageHandler.updatePadClients(pad),
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]);
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}
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/**
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@ -688,7 +685,7 @@ exports.setPublicStatus = async function(padID, publicStatus)
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}
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// set the password
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pad.setPublicStatus(publicStatus);
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await pad.setPublicStatus(publicStatus);
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}
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/**
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@ -726,7 +723,7 @@ exports.setPassword = async function(padID, password)
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let pad = await getPadSafe(padID, true);
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// set the password
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pad.setPassword(password == "" ? null : password);
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await pad.setPassword(password === '' ? null : password);
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}
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/**
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@ -245,6 +245,6 @@ exports.removePad = async function(authorID, padID)
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if (author.padIDs !== null) {
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// remove pad from author
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delete author.padIDs[padID];
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db.set("globalAuthor:" + authorID, author);
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await db.set('globalAuthor:' + authorID, author);
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}
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}
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@ -71,7 +71,7 @@ Pad.prototype.getPublicStatus = function getPublicStatus() {
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return this.publicStatus;
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};
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Pad.prototype.appendRevision = function appendRevision(aChangeset, author) {
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Pad.prototype.appendRevision = async function appendRevision(aChangeset, author) {
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if (!author) {
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author = '';
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}
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@ -97,12 +97,14 @@ Pad.prototype.appendRevision = function appendRevision(aChangeset, author) {
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newRevData.meta.atext = this.atext;
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}
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db.set("pad:" + this.id + ":revs:" + newRev, newRevData);
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this.saveToDatabase();
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const p = [
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db.set('pad:' + this.id + ':revs:' + newRev, newRevData),
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this.saveToDatabase(),
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];
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// set the author to pad
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if (author) {
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authorManager.addPad(author, this.id);
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p.push(authorManager.addPad(author, this.id));
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}
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if (this.head == 0) {
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@ -110,10 +112,12 @@ Pad.prototype.appendRevision = function appendRevision(aChangeset, author) {
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} else {
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hooks.callAll("padUpdate", {'pad':this, 'author': author});
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}
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await Promise.all(p);
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};
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// save all attributes to the database
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Pad.prototype.saveToDatabase = function saveToDatabase() {
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Pad.prototype.saveToDatabase = async function saveToDatabase() {
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var dbObject = {};
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for (var attr in this) {
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@ -127,7 +131,7 @@ Pad.prototype.saveToDatabase = function saveToDatabase() {
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}
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}
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db.set("pad:" + this.id, dbObject);
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await db.set('pad:' + this.id, dbObject);
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}
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// get time of last edit (changeset application)
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@ -244,7 +248,7 @@ Pad.prototype.text = function text() {
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return this.atext.text;
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};
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Pad.prototype.setText = function setText(newText) {
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Pad.prototype.setText = async function setText(newText) {
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// clean the new text
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newText = exports.cleanText(newText);
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@ -261,10 +265,10 @@ Pad.prototype.setText = function setText(newText) {
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}
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// append the changeset
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this.appendRevision(changeset);
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await this.appendRevision(changeset);
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};
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Pad.prototype.appendText = function appendText(newText) {
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Pad.prototype.appendText = async function appendText(newText) {
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// clean the new text
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newText = exports.cleanText(newText);
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@ -274,14 +278,16 @@ Pad.prototype.appendText = function appendText(newText) {
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var changeset = Changeset.makeSplice(oldText, oldText.length, 0, newText);
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// append the changeset
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this.appendRevision(changeset);
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await this.appendRevision(changeset);
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};
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Pad.prototype.appendChatMessage = function appendChatMessage(text, userId, time) {
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Pad.prototype.appendChatMessage = async function appendChatMessage(text, userId, time) {
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this.chatHead++;
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// save the chat entry in the database
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db.set("pad:" + this.id + ":chat:" + this.chatHead, { "text": text, "userId": userId, "time": time });
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this.saveToDatabase();
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await Promise.all([
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db.set('pad:' + this.id + ':chat:' + this.chatHead, {text, userId, time}),
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this.saveToDatabase(),
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]);
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};
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Pad.prototype.getChatMessage = async function getChatMessage(entryNum) {
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@ -350,7 +356,7 @@ Pad.prototype.init = async function init(text) {
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// this pad doesn't exist, so create it
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let firstChangeset = Changeset.makeSplice("\n", 0, 0, exports.cleanText(text));
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this.appendRevision(firstChangeset, '');
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await this.appendRevision(firstChangeset, '');
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}
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hooks.callAll("padLoad", { 'pad': this });
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@ -366,7 +372,7 @@ Pad.prototype.copy = async function copy(destinationID, force) {
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// padMessageHandler.kickSessionsFromPad(sourceID);
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// flush the source pad:
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this.saveToDatabase();
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await this.saveToDatabase();
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try {
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@ -532,6 +538,7 @@ Pad.prototype.copyPadWithoutHistory = async function copyPadWithoutHistory(desti
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Pad.prototype.remove = async function remove() {
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var padID = this.id;
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const p = [];
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// kick everyone from this pad
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padMessageHandler.kickSessionsFromPad(padID);
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@ -552,44 +559,45 @@ Pad.prototype.remove = async function remove() {
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delete group.pads[padID];
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// set the new value
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db.set("group:" + groupID, group);
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p.push(db.set('group:' + groupID, group));
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}
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// remove the readonly entries
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let readonlyID = readOnlyManager.getReadOnlyId(padID);
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db.remove("pad2readonly:" + padID);
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db.remove("readonly2pad:" + readonlyID);
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p.push(readOnlyManager.getReadOnlyId(padID).then(async (readonlyID) => {
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await db.remove('readonly2pad:' + readonlyID);
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}));
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p.push(db.remove('pad2readonly:' + padID));
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// delete all chat messages
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promises.timesLimit(this.chatHead + 1, 500, function (i) {
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return db.remove("pad:" + padID + ":chat:" + i, null);
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})
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p.push(promises.timesLimit(this.chatHead + 1, 500, async (i) => {
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await db.remove('pad:' + padID + ':chat:' + i, null);
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}));
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// delete all revisions
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promises.timesLimit(this.head + 1, 500, function (i) {
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return db.remove("pad:" + padID + ":revs:" + i, null);
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})
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p.push(promises.timesLimit(this.head + 1, 500, async (i) => {
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await db.remove('pad:' + padID + ':revs:' + i, null);
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}));
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// remove pad from all authors who contributed
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this.getAllAuthors().forEach(authorID => {
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authorManager.removePad(authorID, padID);
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p.push(authorManager.removePad(authorID, padID));
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});
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// delete the pad entry and delete pad from padManager
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padManager.removePad(padID);
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p.push(padManager.removePad(padID));
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hooks.callAll("padRemove", { padID });
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await Promise.all(p);
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}
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// set in db
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Pad.prototype.setPublicStatus = function setPublicStatus(publicStatus) {
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Pad.prototype.setPublicStatus = async function setPublicStatus(publicStatus) {
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this.publicStatus = publicStatus;
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this.saveToDatabase();
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await this.saveToDatabase();
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};
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Pad.prototype.setPassword = function setPassword(password) {
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Pad.prototype.setPassword = async function setPassword(password) {
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this.passwordHash = password == null ? null : hash(password, generateSalt());
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this.saveToDatabase();
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await this.saveToDatabase();
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};
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Pad.prototype.isCorrectPassword = function isCorrectPassword(password) {
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@ -600,7 +608,7 @@ Pad.prototype.isPasswordProtected = function isPasswordProtected() {
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return this.passwordHash != null;
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};
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Pad.prototype.addSavedRevision = function addSavedRevision(revNum, savedById, label) {
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Pad.prototype.addSavedRevision = async function addSavedRevision(revNum, savedById, label) {
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// if this revision is already saved, return silently
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for (var i in this.savedRevisions) {
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if (this.savedRevisions[i] && this.savedRevisions[i].revNum === revNum) {
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@ -618,7 +626,7 @@ Pad.prototype.addSavedRevision = function addSavedRevision(revNum, savedById, la
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// save this new saved revision
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this.savedRevisions.push(savedRevision);
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this.saveToDatabase();
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await this.saveToDatabase();
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};
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Pad.prototype.getSavedRevisions = function getSavedRevisions() {
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@ -200,10 +200,11 @@ exports.isValidPadId = function(padId)
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/**
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* Removes the pad from database and unloads it.
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*/
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exports.removePad = function(padId) {
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db.remove("pad:" + padId);
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exports.removePad = async (padId) => {
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const p = db.remove('pad:' + padId);
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exports.unloadPad(padId);
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padList.removePad(padId);
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await p;
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}
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// removes a pad from the cache
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