How do I check a signature of any message?

I would like to have a p2sh transaction with the OP_CHECKSIG (or any other op code) in the redemption script checking a signature for any message (no transaction).
I searched, but all I could find is that OP_CHECKSIG only checks signatures in the transaction. I need a signature check to pass the message (hash of the message) to the review process.
Something similar to ecrecover that records a signature, the verification key, and the message. Is that even possible with the existing opcodes?

Identity Management – Sailpoint IdentityIQ error message

I follow the following article to install identityIQ on my lab device.

https://ravikumarghr.blogspot.com/2018/12/sailpoint-installation-steps-windows.html

I get the following error in the last command: iiq console

  • 2019-07-17 21: 03: 10,806 WARN main
    springframework.context.support.ClassPathXmlApplicationContext: 551 –
    Exception during context initialization – abort
    Update attempt:
    org.springframework.beans.factory.BeanCreationException: Error
    Create a bean named & # 39; versionChecker & # 39 ;, which is defined in the classpath
    resource [configBeans.xml]: Call of method init failed; interleaved
    Exception is java.lang.RuntimeException: IdentityIQ can not be verified
    Database version: PoolableConnectionFactory can not be created (could not be created
    Connect to the database server.)
    org.springframework.beans.factory.BeanCreationException: Error
    Create a bean named & # 39; versionChecker & # 39 ;, which is defined in the classpath
    resource [configBeans.xml]: Call of init method failed; interleaved
    Exception is java.lang.RuntimeException: IdentityIQ can not be verified
    Database version: PoolableConnectionFactory can not be created (could not be created
    Connect to the database server.)

An error occured while upgrading from magneto 2.2.5 to 2.3.0: Calling the undefined method Magento Framework Mail Message Interceptor :: clearFrom ()

We have also overwritten this file.
Magento Framework Mail Template TransportBuilder

public function clearFrom ()
{
$ this-> message-> clearFrom (& # 39; From & # 39;);
return $ this;
}

Linux – Is there a way to disable the Secure Boot Boot message?

So yesterday I disabled Secure Boot to run undervolt software. I'm using Elementary OS on an Asus Q325UA laptop, and when I reboot the system, I get this message in front of the grub, which says something like:

"Booting in a safe mode"

for about 3-4 seconds. Then the computer starts normally and there are no problems. It's not a big deal, but I wondered if there's a way to hide / remove this message because it's a bit annoying. Thanks again.

php – I can not send a contact form. The message "Wrong e-mail!" Appears when you click Send

I'm trying to set up a contact form, it did not have the code in PHP, just in HTML and in the action code of the HTML code it sent to the site https://mobirise.com/.

Example – HTML as it was:

After I created the code in PHP, I removed the link from the HTML code included in the action function (https://mobirise.com/) and replaced the setup
the page ("send_email.php") that I created with the code in php.

After I made these changes for the form to send the message to the site's email, I have the following problem: After I filled out the form and clicked on the message "False E-mail!" I clicked, I send the message. I need to solve this problem so that I can verify that the code is working in PHP and can send the information correctly to the site.

HTML – part of the code I changed:

          

HTML of the Fomulário:





& nbsp;

CONTACT US

Leave your name, email and get more information.

Form code – PHP





untitled document









<?
// isset checks if the Send - Submit button has been clicked on and triggers the email only if it is true

if (isset ($ _ POST['submit'])) {

// e-mail where you receive the message
$ recipient = & # 39; contato@belartsolucoes.com.br&#39 ;;

// get the form data ...
$ name = $ _POST['name'];
$ email = $ _POST['email'];
$ message = $ _POST['message'];

// headers preparing the message
$ headers = "MIME version: 1.0". " r  n";
$ headers. = "Content Type: Text / HTML; Character Set = utf-8". " r  n";
$ headers. = "From: Site " n" ";
$ headers. = "Reply to: contato@pmbasis.com.br". " r  n";
$ headers. = "X-Mailer: PHP /". phpversion ();


/ * below contains the data sent to the e-mail
registered to receive the form * /

$ body = "Sent form  n";
$ body = "Name:". $ name. " n";
$ body = "E-mail:". $ email. " n";
$ body = "message:". $ message. " n";


// send e-mail ... ->
$ answer = mail ($ recipient, $ headers, $ body, $ message);

// back to contact.html ->
header ("Location: index.php");
}
?>


design – What is the purpose of event sourcing and asynchronous message queues for sending commands?

So what's the use of keeping events as a sequence if we're not sure about their order?

Well, we are sure about the order of events – they are sorted in the order in which they are writtenThis is determined by the order in which the instructions finish processing. (If you use a single command handler, this is the order in which the commands arrive at the handler.)

The asynchronous message queue can be used to transmit messages to a (currently) unavailable recipient. The queue itself is a plumber with higher availability because we do not need to constantly change it for business reasons.

Since commands may be out of service, the receiver's logic must cover this contingency (assuming it is important to the business). Basically, distributed messaging means that you never know if you have received all the messages that you will eventually receive. At some point you have to guess that you have all the news or are paralyzed forever in idleness.

Think of e-mail. You will receive an e-mail from Bob, you will act accordingly and later you will receive an e-mail from Alice, who has sent it earlier as Bob's mail, but hers was delayed somewhere. What now? Go as well as you can and continue.

See also Race Conditions Don & # 39; t Exist.

8 – How is the image of the related node displayed in the message template?

I have the news module installed on my site. I have created a message template for the new node that was created in my subtopic.

Enter image description here

I want to display the image of the node in the message template with the style diaporama_lg_50,

I tested the following code with TWIG, but it does not work:

{{message.field_node_reference.entity.field_article_image | image_style (& # 39; diaporama_lg_50 & # 39;}}}

Web Development – Web Push Notification Message

How can I send a push notification when the user goes online but does not necessarily open a web browser?
So far, my code is that allows the user to get a push message when they enter the site.
Any suggestions?

$ (document) .ready (function () {
navigator.serviceWorker.register (& # 39; service-worker.js & # 39;);
var titleElement = "summer";
var messageElement = "bloom";
Function showNotification () {
Notification.requestPermission (function (result) {
if (result === & # 39; granted & # 39;) {
navigator.serviceWorker.ready.then (function (registration) {
registration.showNotification (titleElement, {
body: messageElement,
icon: & 39; images / android-icon-36x36.png & # 39 ;,
vibrate: [200, 100, 200, 100, 200, 100, 200].
tag: & # 39; vibration sample & # 39;
});
});
}
});
}
setCookie (benachrichtnotify #, # 2 #, 2);
var x = getCookie (& nb; advise & # 39;);

if (x) {
Show notification ();
}

});