Chrome Extension x Delphi

Question

Does anyone know how to communicate an extension created for CHROME with DELPHI ?

Something like sending DELPHI commands to that extension OR vice versa ?

Follow the extension code that captures the CURRENT TAB code.

function DOMtoString(document_root) {
    var html = '',
        node = document_root.firstChild;
    while (node) {
        switch (node.nodeType) {
        case Node.ELEMENT_NODE:
            html += node.outerHTML;
            break;
        case Node.TEXT_NODE:
            html += node.nodeValue;
            break;
        case Node.CDATA_SECTION_NODE:
            html += '<![CDATA[' + node.nodeValue + ']]>';
            break;
        case Node.COMMENT_NODE:
            html += '<!--' + node.nodeValue + '-->';
            break;
        case Node.DOCUMENT_TYPE_NODE:
            // (X)HTML documents are identified by public identifiers
            html += "<!DOCTYPE " + node.name + (node.publicId ? ' PUBLIC "' + node.publicId + '"' : '') + (!node.publicId && node.systemId ? ' SYSTEM' : '') + (node.systemId ? ' "' + node.systemId + '"' : '') + '>\n';
            break;
        }
        node = node.nextSibling;
    }
    return html;
}

chrome.extension.sendMessage({
    action: "getSource",
    source: DOMtoString(document)
});

Answer 1

It is unclear whether you want to communicate with a program written in Delphi on the local machine or remotely under the internet. In any case the solution is to open an HTTP server by Delphi and handle requests generated by the extension. On the extension you can send a POST request to the IP of the machine running the Delphi program (127.0.0.1 if it is the computer itself). The server can be a CGI application, for example, listening on some specific port that the extension knows. That’s the basic idea.

It seems to me that there are no other means (even for security reasons) of the extension accessing something from the computer, whatever. The only form of communication would be with AJAX itself.