Add support for async hash_function

Given that you've recently used this OAuth library, I'd like to inquire about its functionality. It appears that the library lacks flow management, and the functions seem rather basic. I anticipated an OAuth example, similar to the Twitter OAuth flow, where the following URLs are typically utilized:

"twitter": {
    "request_url": "https://api.twitter.com/oauth/request_token",
    "authorize_url": "https://api.twitter.com/oauth/authenticate",
    "access_url": "https://api.twitter.com/oauth/access_token",
    "oauth": 1
  },

Could you elaborate on how the library handles transitioning from a request token to a user access token? Specifically, will the user directly receive the user access token on their screen, or is there a mechanism where the verified request token is sent to a callback URL, potentially located outside the user's screen?

Additionally, I'm curious if there's an option within this library to retain all tokens in the browser without transmitting them to a third-party server. Your insights on this matter would be highly valuable to me.

This is the current implementation far from beeing operational:

<!-- myapp/templates/login.html uses https://github.com/ddo/oauth-1.0a -->

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>OAuth Example</title>

    <!-- jQuery -->
    <script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>

    <!-- CryptoJS sha1 -->
    <script src="https://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/hmac-sha1.js"></script>
    <!-- CryptoJS sha256 -->
    <script src="https://crypto-js.googlecode.com/svn/tags/3.1.2/build/rollups/hmac-sha256.js"></script>
    <script src="https://crypto-js.googlecode.com/svn/tags/3.1.2/build/components/enc-base64-min.js"></script>

    <!-- OAuth Library - Remote URL -->
    <script src="https://raw.githubusercontent.com/ddo/oauth-1.0a/master/oauth-1.0a.js"></script>
</head>
<body>

    <h1>OAuth Example</h1>

    <!-- Button to Trigger OAuth Sequence -->
    <button id="oauthButton">Trigger OAuth</button>

    <!-- Button to Open connectiq://local URL -->
    <button id="connectiqButton">Open connectiq://oauth</button>

    <script>
        const oauth = OAuth({
            consumer: {
                key: 'Your-Consumer-Key',
                secret: 'Your-Consumer-Secret',
            },
            signature_method: 'HMAC-SHA1',
            hash_function(base_string, key) {
                return CryptoJS.HmacSHA1(base_string, key).toString(CryptoJS.enc.Base64)
            },
        });

        const request_data = {
            url: 'https://api.twitter.com/1/statuses/update.json?include_entities=true',
            method: 'POST',
            data: { status: 'Hello Ladies + Gentlemen, a signed OAuth request!' },
        };

        const token = {
            key: 'Your-Token-Key',
            secret: 'Your-Token-Secret',
        };

        // Function to Execute OAuth Sequence
        const triggerOAuth = () => {
            $.ajax({
                url: request_data.url,
                type: request_data.method,
                data: oauth.authorize(request_data, token),
            }).done(function (data) {
                console.log('OAuth successfully completed:', data);

                // Here you can analyze the response and extract the tokens
                const accessToken = data.access_token; // Example - adjust this to your response

                console.log('Access Token:', accessToken);
            });
        };

        // Function to Open connectiq://oauth
        const openConnectIQ = () => {
            console.log('Opening connectiq://oauth?accessToken=',accessToken);
            // Here you can implement the logic for the connectiq://oauth call
        };

        // Event handler for the OAuth button
        $('#oauthButton').on('click', triggerOAuth);

        // Event handler for the ConnectIQ button
        $('#connectiqButton').on('click', openConnectIQ);
    </script>

</body>
</html>

ddo / oauth-1.0a

Add support for async hash_function #118