The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Software Development’ Category

Rust is jet another language allowing assigning to _ for discarding assignment results (like function calls)

Posted by jpluimers on 2022/09/16

Rust is a programming language that very much emphasises safety.

One of the cornerstones is that it warns on constructs that might lose information or make object lifetime unclear.

An example is discarding function results: historically you will get a warning like warning: unused `std::result::Result` that must be used that you can resolve by applying a let statement assigning to the _ underscore pattern which will be discarded at the end of the statement like this:

Read the rest of this entry »

Posted in Development, Rust, Software Development | Leave a Comment »

Visual Studio Code: blazingly fast text expansion with Emmet

Posted by jpluimers on 2022/09/15

I come from a background of Delphi, Visual Studio and Notepad++ editors that historically have expanded their functionality over decades of releases.

When switching much of my development to Visual Studio Code, which out of the box aims at basic support (which has grown remarkably over the years so it’s way beyond basic now), I decided to review my editing behaviours see if plugins (in vscode speak “extensions marketplace“) would assist me with that.

One of my behaviours I wanted to get rid of is heavily use of keyboard macros, so when doing more web-stuff, I bumped into Emmet (that in the past was called Zen Code).

I bumped into Emmet because I wanted to refactor quite a few bits of html, and embed many sections of text in tags. Normally I would have written a macro for that, but now I did a quick [Wayback/Archive.is] vscode html embed text in element – Google Search and bumped into [Wayback/Archive.is] html – How to do tag wrapping in VS code? – Stack Overflow (thanks [Wayback/Archive.is] Alex!)

Since Visual Studio Code has built-in support for Emmet, here are some links so I can quickly find them back:

Hopefully I will now also less rely on user-defined snippets, though they are still available: [Wayback/Archive.is] Snippets in Visual Studio Code

Using Emmet eventually might help me in my blog-writing too, which still is heavily WordPress.com, known for its limited editor, based.

Apparently, my Google Search fu still is good enough to find these kinds of gems (:

–jeroen

Posted in .NET, CSS, Development, HTML, HTML5, Software Development, Visual Studio and tools, vscode Visual Studio Code, Web Development | Leave a Comment »

Converting an html dl (delimited list) on a page to a table from the Chrome console

Posted by jpluimers on 2022/09/14

A while ago, I wanted to convert the dl delimited list html element on a web page into a regular table so I could more easily reorder the data into cells.

So I ran the below bit of code in the Chrome Console after first putting the mentioned table with id here_table in the place where I wanted the table to be included:


<table id="here_table"></table>

view raw

_table.html

hosted with ❤ by GitHub


var arr = $("#delimitedList").children().map(function () {
return $(this).html();
}).get();
for (var i = 0; i < arr.length; i += 2) {
$('#here_table').append('<tr><td>' + arr[i] + '</td><td>' + arr[i + 1] + '</td></tr>');
}

For this script to work, you need jQuery, so yesterday I wrote Better, Stronger, Safer jQuerify Bookmarklet | Learning jQuery.

The code is based on [Wayback/Archive.is] Rebuild each definition list () as a table using JQuery – Stack Overflow (thanks [Wayback/Archive.is] easy!) with an important adoption instead of calling text() to get the textual dt and dd information, it uses html() so the original innerHTML is being preserved.

Some similar JavaScript pieces of code are at [Wayback/Archive.is] Turning HTML into a nested JavaScript array with jQuery – Stack Overflow.

Related:

–jeroen

Posted in Bookmarklet, Chrome, Development, Google, JavaScript/ECMAScript, jQuery, Pingback, Power User, Scripting, Software Development, Stackoverflow, Web Browsers, Web Development | Leave a Comment »

Happy Day of the Programmer!

Posted by jpluimers on 2022/09/13

Enjoy Day of the Programmer and [WayBack] Good Questions — Geek&Poke

–jeroen

Related: Happy Day of the Programmer! 2018

via [WayBack] Steema Software on Twitter: “Happy #ProgrammersDay ! Feliç #DiaDelProgramador ! ¡Feliz #DíaDelProgramador !… ” .

 

Posted in Development, Software Development | Leave a Comment »

Avoid writing the deep security layers of your software yourself, as it is hard, even for seasoned security software developers (see CVE-2021-41117 | GitHub Security Lab)

Posted by jpluimers on 2022/09/08

I’ve mentioned this in the past, but not sure I did that on my blog yet, so here it goes:

Avoid writing the deep security layers of your software yourself, as it is hard, even for seasoned security software developers.

Push as much as you can to well tested external libraries.

See for instance [Wayback/Archive.is] GHSL-2021-1012: Poor random number generation in keypair – CVE-2021-41117 | GitHub Security Lab

Three went wrong, leading to easy to guess RSA security keys:

  1. The library has an insecure random number fallback path. Ideally the library would require a strong CSPRNG instead of attempting to use a LCG and Math.random.
  2. The library does not correctly use a strong random number generator when run in NodeJS, even though a strong CSPRNG is available.
  3. The fallback path has an issue in the implementation where a majority of the seed data is going to effectively be zero.

The most important thing that went wrong was seeding the random number generator, cascading

Via:

–jeroen

Posted in Development, Encryption, Hashing, Power User, Security, Software Development | Leave a Comment »

Better, Stronger, Safer jQuerify Bookmarklet | Learning jQuery

Posted by jpluimers on 2022/09/06

For my link archive, the [Wayback] Better, Stronger, Safer jQuerify Bookmarklet | Learning jQuery

Via: [Wayback/Archive.is] Include jQuery in the JavaScript Console – Stack Overflow (thanks [Wayback/Archive.is] brichins!)

When you do not have jQuery installed, then the Chrome console will give you the error [Wayback/Archive.is] javascript – TypeError: $(...).children is not a function – Stack Overflow which has code to load jQuery in this gist: [Wayback/Archive.is] use jQuery in Chrome javascript console.

If this bookmarklet ever starts to fail, then I need to check out these links:

The content of the JQueryfi bookmarklet is in the below gist:


javascript:(function(){var%20el=document.createElement(%22div%22),b=document.getElementsByTagName(%22body%22)[0],otherlib=!1,msg=%22%22;el.style.position=%22fixed%22,el.style.height=%2232px%22,el.style.width=%22220px%22,el.style.marginLeft=%22-110px%22,el.style.top=%220%22,el.style.left=%2250%25%22,el.style.padding=%225px%2010px%22,el.style.zIndex=1001,el.style.fontSize=%2212px%22,el.style.color=%22#222%22,el.style.backgroundColor=%22#f99%22;function%20showMsg(){var%20txt=document.createTextNode(msg);el.appendChild(txt),b.appendChild(el),window.setTimeout(function(){txt=null,typeof%20jQuery==%22undefined%22?b.removeChild(el):(jQuery(el).fadeOut(%22slow%22,function(){jQuery(this).remove()}),otherlib&&(window.$jq=jQuery.noConflict()))},2500)}if(typeof%20jQuery!=%22undefined%22)return%20msg=%22This%20page%20already%20using%20jQuery%20v%22+jQuery.fn.jquery,showMsg();typeof%20$==%22function%22&&(otherlib=!0);function%20getScript(url,success){var%20script=document.createElement(%22script%22);script.src=url;var%20head=document.getElementsByTagName(%22head%22)[0],done=!1;script.onload=script.onreadystatechange=function(){!done&&(!this.readyState||this.readyState==%22loaded%22||this.readyState==%22complete%22)&&(done=!0,success(),script.onload=script.onreadystatechange=null,head.removeChild(script))},head.appendChild(script)}getScript(%22http://code.jquery.com/jquery.min.js%22,function(){return%20typeof%20jQuery==%22undefined%22?msg=%22Sorry,%20but%20jQuery%20was%20not%20able%20to%20load%22:(msg=%22This%20page%20is%20now%20jQuerified%20with%20v%22+jQuery.fn.jquery,otherlib&&(msg+=%22%20and%20noConflict().%20Use%20$jq(),%20not%20$().%22)),showMsg()})})();

view raw

jQuerify.url

hosted with ❤ by GitHub


javascript:(function(){var el=document.createElement("div"),b=document.getElementsByTagName("body")[0],otherlib=!1,msg="";el.style.position="fixed",el.style.height="32px",el.style.width="220px",el.style.marginLeft="-110px",el.style.top="0",el.style.left="50%",el.style.padding="5px 10px",el.style.zIndex=1001,el.style.fontSize="12px",el.style.color="#222",el.style.backgroundColor="#f99";function showMsg(){var txt=document.createTextNode(msg);el.appendChild(txt),b.appendChild(el),window.setTimeout(function(){txt=null,typeof jQuery=="undefined"?b.removeChild(el):(jQuery(el).fadeOut("slow",function(){jQuery(this).remove()}),otherlib&&(window.$jq=jQuery.noConflict()))},2500)}if(typeof jQuery!="undefined")return msg="This page already using jQuery v"+jQuery.fn.jquery,showMsg();typeof $=="function"&&(otherlib=!0);function getScript(url,success){var script=document.createElement("script");script.src=url;var head=document.getElementsByTagName("head")[0],done=!1;script.onload=script.onreadystatechange=function(){!done&&(!this.readyState||this.readyState=="loaded"||this.readyState=="complete")&&(done=!0,success(),script.onload=script.onreadystatechange=null,head.removeChild(script))},head.appendChild(script)}getScript("http://code.jquery.com/jquery.min.js&quot;,function(){return typeof jQuery=="undefined"?msg="Sorry, but jQuery was not able to load":(msg="This page is now jQuerified with v"+jQuery.fn.jquery,otherlib&&(msg+=" and noConflict(). Use $jq(), not $().")),showMsg()})})();

view raw

UrlDecoded.js

hosted with ❤ by GitHub

–jeroen

Posted in Bookmarklet, Development, JavaScript/ECMAScript, jQuery, Power User, Scripting, Software Development, Web Browsers, Web Development | Leave a Comment »

History of ASCII Art

Posted by jpluimers on 2022/09/01

Geocities is long dead, but luckily a lot has been archived: [Wayback] Archive.is: History of ASCII Art with a very comprehensive history ranging from ancient old hand painted art to contemporary computer made illustrations.

Via: [Wayback/Archive.is] ASCII art: The roots of ASCII art

--jeroen

Posted in ASCII, ASCII art / AsciiArt, Development, Encoding, Fun, History, Power User, Retrocomputing, Software Development | Leave a Comment »

iOS/Android Privacy: InAppBrowser.com – see what JavaScript commands get injected through an in-app browser · Felix Krause

Posted by jpluimers on 2022/08/31

Especially on Archive, but also on Android and other mobile operating systems, mobile apps can have their in-app browsers to circumvent the OS provided wrapper around the system browser.

On iOS, the Safari is the only system browser engine whereas on Android you can have other engines too, so less Android applications have in-app browsers.

Most of those in-app browsers are in social media applications that go to great length to keep their users inside a walled garden.

The site [Wayback/Archive] inAppBrowser.com helps checking how severely information is leaked through the in-app browser as those potentially have a lot of control. TikTok is worst capturing all input including credentials like user names and passwords.

Read the rest of this entry »

Posted in Chrome, Conference Topics, Conferences, Development, Event, Firefox, iOS Development, JavaScript/ECMAScript, Mobile Development, Power User, Privacy, Safari, Scripting, Security, Software Development, Web Browsers, Web Development | Leave a Comment »

Making SMB Accessible with NTLMquic – TrustedSec

Posted by jpluimers on 2022/08/30

For my link archive: [Wayback/Archive] Making SMB Accessible with NTLMquic – TrustedSec

Via [Wayback/Archive] Florian Hansemann on Twitter: “”Making SMB Accessible with NTLMquic” #pentest #redteam #infosec”

Related: Read the rest of this entry »

Posted in Development, Power User, Red team, Security, Software Development, Windows, Windows Development | Leave a Comment »

That new Carbon language, it has a net zero footprint, right?

Posted by jpluimers on 2022/08/25

No, Carbon is not the same thing as the same named MacOS Carbon API it .

Someone had to make it: [Wayback/Archive] Jeroen Wiert Pluimers on Twitter: “@d_feldman That has a net zero Carbon footprint, right? (OK, I’ll show myself out)”.

Luckily Googlers themselves are joking about it as well:

Read the rest of this entry »

Posted in C, C++, Carbon, Development, Software Development | Leave a Comment »