Convert Email Address to Duckduckgo Anonymous email format

Converts an email to duckgo anonymous email format, now with minimize functionality

Versão de: 16/03/2025. Veja: a última versão.

Você precisará instalar uma extensão como Tampermonkey, Greasemonkey ou Violentmonkey para instalar este script.

You will need to install an extension such as Tampermonkey to install this script.

Você precisará instalar uma extensão como Tampermonkey ou Violentmonkey para instalar este script.

Você precisará instalar uma extensão como Tampermonkey ou Userscripts para instalar este script.

Você precisará instalar uma extensão como o Tampermonkey para instalar este script.

Você precisará instalar um gerenciador de scripts de usuário para instalar este script.

(Eu já tenho um gerenciador de scripts de usuário, me deixe instalá-lo!)

Você precisará instalar uma extensão como o Stylus para instalar este estilo.

Você precisará instalar uma extensão como o Stylus para instalar este estilo.

Você precisará instalar uma extensão como o Stylus para instalar este estilo.

Você precisará instalar um gerenciador de estilos de usuário para instalar este estilo.

Você precisará instalar um gerenciador de estilos de usuário para instalar este estilo.

Você precisará instalar um gerenciador de estilos de usuário para instalar este estilo.

(Eu já possuo um gerenciador de estilos de usuário, me deixar fazer a instalação!)

// ==UserScript==
// @name         Convert Email Address to Duckduckgo Anonymous email format
// @namespace    http://tampermonkey.net/
// @author       aspen138
// @version      1.1.3
// @description  Converts an email to duckgo anonymous email format, now with minimize functionality
// @match https://126.com/*
// @match https://abv.bg/*
// @match https://adelphia.net/*
// @match https://aim.com/*
// @match https://alice.it/*
// @match https://aol.com/*
// @match https://att.net/*
// @match https://bellsouth.net/*
// @match https://bigpond.com/*
// @match https://bluewin.ch/*
// @match https://blueyonder.co.uk/*
// @match https://bol.com.br/*
// @match https://btinternet.com/*
// @match https://charter.net/*
// @match https://comcast.net/*
// @match https://cox.net/*
// @match https://cs.com/*
// @match https://earthlink.net/*
// @match https://email.mail.com/*
// @match https://embarqmail.com/*
// @match https://excite.com/*
// @match https://exmail.qq.com/*
// @match https://work.weixin.qq.com/mail/
// @match https://fastmail.com/*
// @match https://free.fr/*
// @match https://frontiernet.net/*
// @match https://ge.com/*
// @match https://gmail.com/*
// @match https://gmx.com/*
// @match https://hetnet.nl/*
// @match https://home.nl/*
// @match https://hp.com/*
// @match https://icloud.com/mail/*
// @match https://ig.com.br/*
// @match https://insightbb.co/*
// @match https://juno.com/*
// @match https://laposte.net/*
// @match https://libero.it/*
// @match https://mac.com/*
// @match https://mail.126.com/*
// @match https://mail.163.com/*
// @match https://mail.apple.com/*
// @match https://mail.aol.com/*
// @match https://mail.fastmail.com/*
// @match https://mail.gmx.com/*
// @match https://mail.google.com/*
// @match https://mail.proton.me/*
// @match https://mail.qq.com/*
// @match https://mail.ru/*
// @match https://mail.sina.com/*
// @match https://mail.sina.com.cn/*
// @match https://mail.yahoo.com/*
// @match https://mail.yandex.com/*
// @match https://mail.zoho.com/*
// @match https://mchsi.com/*
// @match https://me.com/*
// @match https://mindspring.com/*
// @match https://msn.com/*
// @match https://netscape.net/*
// @match https://netzero.com/*
// @match https://netzero.net/*
// @match https://ntlworld.com/*
// @match https://optonline.net/*
// @match https://optusnet.com.au/*
// @match https://orange.fr/*
// @match https://outlook.com/*
// @match https://outlook.live.com/*
// @match https://pacbell.net/*
// @match https://peoplepc.com/*
// @match https://planet.nl/*
// @match https://prodigy.net/*
// @match https://proton.me/*
// @match https://rediffmail.com/*
// @match https://roadrunner.com/*
// @match https://rogers.com/*
// @match https://sbcglobal.net/*
// @match https://shaw.ca/*
// @match https://sky.com/*
// @match https://skynet.be/*
// @match https://sympatico.ca/*
// @match https://t-online.de/*
// @match https://talktalk.net/*
// @match https://telenet.be/*
// @match https://telus.net/*
// @match https://terra.com.br/*
// @match https://tiscali.co.uk/*
// @match https://tiscali.it/*
// @match https://trainingelite.com/*
// @match https://uol.com.br/*
// @match https://us.army.mil/*
// @match https://verizon.net/*
// @match https://videotron.ca/*
// @match https://virgilio.it/*
// @match https://wanadoo.fr/*
// @match https://web.de/*
// @match https://webtv.net/*
// @match https://windstream.net/*
// @match https://wp.pl/*
// @match https://www.mail.com/*
// @match https://xtra.co.nz/*
// @match https://yahoo.ca/*
// @match https://yahoo.co.id/*
// @match https://yahoo.co.in/*
// @match https://yahoo.co.uk/*
// @match https://yahoo.com/*
// @match https://yahoo.com.ar/*
// @match https://yahoo.com.au/*
// @match https://yahoo.com.br/*
// @match https://yahoo.com.cn/*
// @match https://yahoo.com.mx/*
// @match https://yahoo.com.sg/*
// @match https://yahoo.com/mail/*
// @match https://yahoo.de/*
// @match https://yahoo.es/*
// @match https://yahoo.fr/*
// @match https://yahoo.in/*
// @match https://yahoo.it/*
// @match https://ymail.com/*
// @match https://yandex.com/mail/*
// @match https://yandex.ru/*
// @match https://zoho.com/mail/*
// @icon         data:image/svg+xml;base64,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
// @iconbackup   https://ssl.gstatic.com/ui/v1/icons/mail/rfr/gmail.ico
// @license      MIT
// @grant        GM_getValue
// @grant        GM_setValue
// ==/UserScript==


(function() {
    'use strict';
    // Create a container for the floating box
    const container = document.createElement('div');
    container.id = 'emailConverter_container';
    container.style.position = 'fixed';
    container.style.bottom = '20px';
    container.style.left = '20px';
    container.style.zIndex = '9999';
    container.style.padding = '10px';
    container.style.backgroundColor = '#fff';
    container.style.border = '1px solid #ccc';
    container.style.borderRadius = '5px';
    container.style.boxShadow = '0 0 5px rgba(0,0,0,0.3)';
    container.style.fontFamily = 'Arial, sans-serif';
    container.style.maxWidth = '280px';

    // Title or heading
    const heading = document.createElement('h4');
    heading.id = 'emailConverter_heading';
    heading.textContent = 'Email Converter';
    heading.style.margin = '0 0 10px 0';
    container.appendChild(heading);

    // Close (minimize) button
    const minimizeButton = document.createElement('button');
    minimizeButton.id = 'emailConverter_minimizeBtn';
    minimizeButton.textContent = 'X';
    minimizeButton.style.position = 'absolute';
    minimizeButton.style.top = '5px';
    minimizeButton.style.right = '10px';
    minimizeButton.style.cursor = 'pointer';
    minimizeButton.style.border = 'none';
    minimizeButton.style.background = 'none';
    minimizeButton.style.fontSize = '16px';
    container.appendChild(minimizeButton);

    // This button will appear when the container is minimized
    const restoreButton = document.createElement('button');
    restoreButton.id = 'emailConverter_restoreBtn';
    restoreButton.textContent = 'Email Converter';
    restoreButton.style.position = 'fixed';
    restoreButton.style.left = '0';
    restoreButton.style.bottom = '20px';
    restoreButton.style.zIndex = '9999';
    restoreButton.style.padding = '6px 12px';
    restoreButton.style.cursor = 'pointer';
    restoreButton.style.border = '1px solid #ccc';
    restoreButton.style.borderRadius = '5px';
    restoreButton.style.fontFamily = 'Arial, sans-serif';
    restoreButton.style.backgroundColor = '#fff';
    restoreButton.style.boxShadow = '0 0 5px rgba(0,0,0,0.3)';
    container.style.display = 'none';
    restoreButton.style.display = 'block';
    document.body.appendChild(restoreButton);

    // Event listeners for minimize/restore
    minimizeButton.addEventListener('click', () => {
        container.style.display = 'none';
        restoreButton.style.display = 'block';
    });

    restoreButton.addEventListener('click', () => {
        container.style.display = 'block';
        restoreButton.style.display = 'none';
    });

    // Wrapper to neatly organize form elements
    const formWrapper = document.createElement('div');
    formWrapper.id = 'emailConverter_formWrapper';
    formWrapper.style.display = 'flex';
    formWrapper.style.flexDirection = 'column';
    formWrapper.style.gap = '5px';

    // Retrieve stored values (if any)
    const storedSendTo = GM_getValue('converterSendTo', '');
    const storedDdgo = GM_getValue('converterDdgo', '');

    // Label and input for "send email to who?"
    const labelSendTo = document.createElement('label');
    labelSendTo.id = 'emailConverter_labelSendTo';
    labelSendTo.textContent = 'Send email to who: ';
    labelSendTo.style.marginRight = '10px';

    const inputSendTo = document.createElement('input');
    inputSendTo.id = 'emailConverter_inputSendTo';
    inputSendTo.type = 'text';
    inputSendTo.placeholder = 'e.g. [email protected]';
    inputSendTo.style.width = '250px';
    inputSendTo.value = storedSendTo;

    const rowSendTo = document.createElement('div');
    rowSendTo.id = 'emailConverter_rowSendTo';
    rowSendTo.appendChild(labelSendTo);
    rowSendTo.appendChild(inputSendTo);

    // Label and input for "your ddgo mail?"
    const labelDdgo = document.createElement('label');
    labelDdgo.id = 'emailConverter_labelDdgo';
    labelDdgo.textContent = 'Your DuckduckGo address: ';
    labelDdgo.style.marginRight = '10px';

    const inputDdgo = document.createElement('input');
    inputDdgo.id = 'emailConverter_inputDdgo';
    inputDdgo.type = 'text';
    inputDdgo.placeholder = 'e.g. [email protected]';
    inputDdgo.style.width = '250px';
    inputDdgo.value = storedDdgo;

    const rowDdgo = document.createElement('div');
    rowDdgo.id = 'emailConverter_rowDdgo';
    rowDdgo.appendChild(labelDdgo);
    rowDdgo.appendChild(inputDdgo);

    // Convert button
    const buttonConvert = document.createElement('button');
    buttonConvert.id = 'emailConverter_convertBtn';
    buttonConvert.textContent = 'Convert';
    buttonConvert.style.marginRight = '10px';
    buttonConvert.style.cursor = 'pointer';
    buttonConvert.style.width = '258px';

    // Output field for converted email
    const labelOutput = document.createElement('label');
    labelOutput.id = 'emailConverter_labelOutput';
    labelOutput.textContent = 'Converted: ';
    labelOutput.style.marginRight = '10px';

    const outputEmail = document.createElement('input');
    outputEmail.id = 'emailConverter_outputEmail';
    outputEmail.type = 'text';
    outputEmail.readOnly = true;
    outputEmail.style.width = '250px';

    const rowOutput = document.createElement('div');
    rowOutput.id = 'emailConverter_rowOutput';
    rowOutput.appendChild(labelOutput);
    rowOutput.appendChild(outputEmail);

    // Feedback or error message area
    const feedback = document.createElement('p');
    feedback.id = 'emailConverter_feedback';
    feedback.style.color = 'red';
    feedback.style.fontSize = '14px';
    feedback.style.margin = '5px 0 0 0';
    feedback.style.minHeight = '18px';
    feedback.textContent = '';

    // Conversion function
    buttonConvert.addEventListener('click', () => {
        const originalEmail = inputSendTo.value.trim();
        const ddgoEmail = inputDdgo.value.trim();
        let errorMessage = '';

        if (!originalEmail) {
            errorMessage = 'Please enter an email address to convert.';
        } else if (!ddgoEmail) {
            errorMessage = 'Please enter your DDG address.';
        }

        if (errorMessage) {
            feedback.textContent = errorMessage;
            outputEmail.value = '';
            return;
        }

        const converted = originalEmail.replace(/@/g, '_at_') + '_' + ddgoEmail;
        outputEmail.value = converted;
        feedback.textContent = '';

        GM_setValue('converterSendTo', originalEmail);
        GM_setValue('converterDdgo', ddgoEmail);
    });

    // Assemble elements in the container
    formWrapper.appendChild(rowSendTo);
    formWrapper.appendChild(rowDdgo);
    formWrapper.appendChild(buttonConvert);
    formWrapper.appendChild(rowOutput);
    formWrapper.appendChild(feedback);

    container.appendChild(formWrapper);
    document.body.appendChild(container);
})();