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

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Archive for the ‘Software Development’ Category

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Bookmarklets for Archive.is and the WayBack Machine to go to the original page

Posted by jpluimers on 2023/06/07

Quite often, when browsing an archived page on Archive.is or the WayBack Machine, I want to check the current status of the original page.

So I wrote a few Bookmarklets.

Archive.is

Default field

Any Archive.is page has a Saved from field which is an input html element having a name attribute with value q and a value property containing the URL, which is navigated to by assigning the location in the above code.

So my goto Bookmarklet is this one:

javascript:open(document.getElementsByName("q")[0]?.value)

It uses [0]? as there is no getElementsByName, but there is [Wayback/Archive] Document.getElementsByName() – Web APIs | MDN as name values need not to be unique but id values have to be.

Other Archive.is fields

The above works on all types of Archive.is page types:

  1. search pages like https://archive.is/https://example.org
  2. actual archived pages like https://archive.is/LkpeZ and https://archive.ph/2022.01.22-165646/https://example.org/
    • these only have a Saved from field.
  3. redirected archived pages like https://archive.ph/UEQeg and https://archive.ph/2013.01.03-111457/http://www.iana.org/domains/example/
    • these both have Saved from and Redirected from fields.
  4. complex pages like https://archive.ph/5iVVH and https://archive.ph/2015.11.14-044109/http://www.example.org/
    • those have even more fields: in addition to fields Saved from and Redirected from, the fields Via and Original also are added.

To get the additional fields from the other fields, we need to figure out a way to access them.

Read the rest of this entry »

Posted in Bookmarklet, Development, JavaScript/ECMAScript, Power User, Scripting, Software Development, Web Browsers | 1 Comment »

What is the difference between <p>, <div> and <span> in HTML&XHTML?

Posted by jpluimers on 2023/06/06

I write most of my documentation in Markdown or reStructuredText, so I don’t bump into html questions as often as in the past. But recently, I had to document in html as markdown was impossible, bumped in the choice between using div or p tags for paragraphs, and remembered there was a p problem not present with div but forgot which problem.

So I found [Wayback/Archive] What is the difference between <p>, <div> and <span> in HTML&XHTML? where the red bit explained what I forgot:

As others have answered… div and p are “block elements” (now redefined as Flow Content) and span is an “inline element” (Phrasing Content). Yes, you may change the default presentation of these elements, but there is a difference between “flow” versus “block”, and “phrasing” versus “inline”.

An element classified as flow content can only be used where flow content is expected, and an element classified as phrasing content can be used where phrasing content is expected. Since all phrasing content is flow content, a phrasing element can also be used anywhere flow content is expected. [Wayback/Archive] The specs provide more detailed info.

All phrasing elements, such as strong and em, can only contain other phrasing elements: you can’t put a table inside a cite for instance. Most flow content such as div and li can contain all types of flow content (as well as phrasing content), but there are a few exceptions: p, pre, and th are examples of non-phrasing flow content (“block elements”) that can only contain phrasing content (“inline elements”). And of course there are the normal element restrictions such as dl and table only being allowed to contain certain elements.

While both div and p are non-phrasing flow content, the div can contain other flow content children (including more divs and ps). On the other hand, p may only contain phrasing content children. That means you can’t put a div inside a p, even though both are non-phrasing flow elements.

Now here’s the kicker. These semantic specifications are unrelated to how the element is displayed. Thus, if you have a div inside a span, you will get a validation error even if you have span {display: block;} and div {display: inline;} in your CSS.

Thanks [Wayback/Archive] Dhamu for asking that question and [Wayback/Archive] chharvey for explaining these details!

The [Wayback/Archive] HTML Standard: 3.2.5.2 Kinds of content has a cool diagram too:

Read the rest of this entry »

Posted in Development, HTML, HTML5, Software Development, Web Development | Leave a Comment »

Why I try to keep an online copy of my bookmarklets in html instead of Markdown

Posted by jpluimers on 2023/06/01

As Chrome mangles Bookmarklets to a partially escaped form (I think using Percent encoding), I first tried to document my Bookmarklets in Markdown so I could easier edit them and copy these JavaScript links  to various browsers. That failed, because the html rendered from the Markdown didn’t contain the links any more. So I now use plain html for documenting them which is a pain to edit but works.

[Wayback/Archive] Some bookmarklets hosted as [Wayback/Archive] Some bookmarklets – cached 1 minute – throttled and [Wayback/Archive] Some bookmarklets – cached 1 year – CDN.

This is why:

  1. Technically you can include JavaScript for Bookmarklets in Markdown documents both as Markdown links (either with escapes or by splitting reference and link in two pieces) and html links (as embedding html in Markdown is allowed): [Wayback/Archive] Bookmarklet link in Markdown document – Stack Overflow (thanks [Wayback/Archive] Adam Haile, [Wayback/Archive] Zombo and [Wayback/Archive] stevemegson)
  2. Because of security reasons, many hosters will filter out JavaScript when transforming Markdown in html [Wayback/Archive] Embed JavaScript in GitHub README.md – Stack Overflow (thanks [Wayback/Archive] Matt Smith and [Wayback/Archive] coyotte508)

Searches: [Wayback/Archive] markdown javascript in link – Google Search and [Wayback/Archive] “embed javascript” in markdown – Google Search.

–jeroen

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

JavaScript bookmarklet to replace part of the archive.li fixing: not possible 

Posted by jpluimers on 2023/05/31

Quite often while saving a URL in the WayBack Machine, the response often is headed “Sorry” with non-descriptive “Job failed”. In the background however, at least half of th…

Related: JavaScript bookmarklet to replace part of the WayBack machine URL

For instance, a while ago for instance http://archive.fo/search/?q=nu.nl, https://archive.fo/search/?q=nu.nl and similar URLs redirected to https://archive.li/search/?q=nu.nl, which in turn redirected to itself:

This page isn’t working

archive.li redirected you too many times.

ERR_TOO_MANY_REDIRECTS

This isn’t a cookie thing as it happens in an anonymous window on several browsers as well. Most redirect checkers return a 429, as Archive Today has quite strict rate limiting:

I tried these bookmarklets to go to a good archive.is link from the above replacing http://archive.fo/search/?q=nu.nl,  https://archive.fo/search/?q=nu.nl, http://archive.li/search/?q=nu.nl and https://archive.li/search/?q=nu.nl with https://archive.is/search/?q=nu.nl (with the same above bolded parts):

javascript:(function() {window.location=window.location.toString().replace(/^http.?:\/\/archive\.[is|li]\//,'https://archive.is/');})()

It can even be simpler (but maybe not fully conformant to specs):

javascript:location=location.href.replace(/^http.?:\/\/archive\.[is|li]\//,'https://archive.is/')

These both fail!

Even a simple bookmarklet like this fails too:

javascript:alert('hello world!');

It took me a bit of thinking to figure out why, but then figured out that any JavaScript requires a page context to run, and when no page is displayed, there is no context to run on.

And indeed:

–jeroen

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

ASRock Rack ALTRAD8U-1L2T is a mATX Motherboard for up to 128 Cores which supports IPMI!

Posted by jpluimers on 2023/05/28

I would really like to try out a system based on the interesting [Wayback/Archive] ASRock Rack ALTRAD8U-1L2T is a mATX Motherboard for up to 128 Cores specs from the PDF and ServeTheHome images below:

ASRock AMPERE ALTRADBU-1L2T
Product ASRock Rack Ampere Altra Family deep microATX motherboard
Power source Supports ATX PSU or 12V DC-in
Form Factor Deep Micro-ATX (9.6″ x 10.5″)
Processor System CPU
Chipset		 1 Socket (LGA-4926) Ampere® Altra®/Altra® Max processor
System on chip
Memory Capacity 8 DDR4 288-pin DIMM Slots (1DPC); Supports:
RDIMM up to 256GB each, max. 3200MHz.
LRDIMM up to 256GB each, max. 3200MHz
Expansion PCIe slots

Others

 SLOT7: PCIe4 x16
SLOT6: PCIe4 x16
SLOT5: PCIe4 x16
SLOT4: PCIe4 x16
4 SlimSAS (PCIe4 x8)
2 OCuLink (PCIe4 x4)
Storage M.2
SATA port		 2 M.2 M-key (PCIe4 x4), supports 2280 form factor
N/A
Network RJ45 2 RJ45 (10GbE) by Intel® X550
1 RJ45 (1GbE) by Intel® i210
Management BMC
Dedicated IPMI		 ASPEED AST2500: IPMI 2.0
1 RJ45 via Realtek RTL8211E
I/O USB
COM port		 6 USB3.2 Gen1 ports: 4 rear Type-A, 2 via 19-pin header
1 (9-pin) header
Display Video 1 DB15 (VGA), 1 (15-pin) header
Security TPM Supports 13-pin (SPI) TPM modules

Read the rest of this entry »

Posted in AArch64/arm64, ARM, Assembly Language, Development, Hardware, Power User, Software Development | Leave a Comment »

I learned: MacOS has a Unicode Hex Input keyboard

Posted by jpluimers on 2023/05/25

A while ago, I learned that MacOS has had a Unicode Hex Input keyboard since ages.

It is not installed by default, so you have to manually add it:

  1. Start the System Preferences.app
  2. Open the Keyboard icon
  3. Choose the Input Sources tab
  4. Click the plus (+) icon
  5. Search for Unicode or Hex to get so Unicode Hex Input is the only entry in the list
  6. Click the Add  button
  7. Choose the Keyboard tab
  8. Enable Show keyboard and emoji viewers in menu bar

Now in the menu bar, you can select the Unicode Hex Input.

After that, when holding the Option key, any 4-digit Unicode sequence will get you a Unicode character.

Read the rest of this entry »

Posted in Apple, Development, Encoding, Mac OS X / OS X / MacOS, Power User, Software Development, Unicode | Leave a Comment »

JavaScript bookmarklet to replace part of the WayBack machine URL

Posted by jpluimers on 2023/05/23

Quite often while saving a URL in the WayBack Machine, the response often is headed “Sorry” with non-descriptive “Job failed”.

In the background however, at least half of those times the job actually succeeded.

Some periodes that success rate was way lower as the archival job didn’t start with a GET request. The workaround was to use a POST request, see I want to check out how to do POST requests using bookmarklets in order to save URLs to the WayBack machine and [Archive] Jeroen Wiert Pluimers on Twitter: “Does anyone why the @waybackmachine has a lot of job failed and 404 errors over the last few days? … and … just returned a 404; most of my archivals the last few days failed or had to be retried at least half a dozen times to succeed. …” / Twitter

The error message in both “Job failed” cases is the same, so it makes sense to differ between the first case (job started and complete, but web interface failed to get that) and the latter (job didn’t even start) by doing the below URL replacement with a bookmarklet:

Read the rest of this entry »

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

Some cool (mostly Dutch) WiFi names (related to my earlier naming posts)

Posted by jpluimers on 2023/05/22

From [Wayback/Archive] De Leukste Wifinaam van 2021 | NPO Radio 2:

  • It hurts when IP
  • Modem Talking
  • Boogie WonderLAN
  • AIVD afluisterplantenbak
  • WiFinal Countdown
  • Ichbinwifidu
  • Michiel de Router
  • Ziggo Stardust
  • Drop it like it’s hotspot
  • Draadlozing
  • WhyTellMeFi
  • Lekker Wifi
  • Wifi Soerjadi
  • Jodelawifi

My related blog posts:

–jeroen

Posted in Conventions, Development, Fun, Naming Conventions, Network-and-equipment, Power User, Software Development, WiFi | Leave a Comment »

Windows 10 and 11: installing WSL2 does not require winget, Chocolatey or Scoop

Posted by jpluimers on 2023/05/18

After using Chocolatey for a long time and writing about it, I have written a few articles on other Windows package managers like winget and Scoop.

Part of the reason was that I wanted to install new systems in a semi-automatic way including WSL2 (Windows Subsystem for Linux 2).

As I have spent quite some time getting treated against metastasised rectum cancer, I missed part of the evolvement of WSL into WSL2 and of the winget evolvement.

The good news is that this simplified the scripted installation of WSL2 a lot, as over time, this got very easy, as confirmed in these posts/messages I found via [Wayback/Archive] winget wsl2 – Google Search:

I even found back this was announced when I was still in hospital: during the Build 2020 conference. A summary is at [Wayback/Archive] The Windows Subsystem for Linux BUILD 2020 Summary – Windows Command Line describing the introduction of wsl.exe --install and that it defaults to install WSL 2 as back-then already most Windows Insider build users using WSL had switched from WSL 1 to WSL 2.

Back to installing

Yesterday, in  Windows “equivalents” for bash backticks in cmd and PowerShell, I showed how to get the wsl.exe information:

C:\temp>PowerShell -Command "SigCheck "$((Get-Command -CommandType Application wsl).Path)""

Sigcheck v2.82 - File version and signature viewer
Copyright (C) 2004-2021 Mark Russinovich
Sysinternals - www.sysinternals.com

c:\windows\system32\wsl.exe:
        Verified:       Signed
        Signing date:   09:24 15/10/2021
        Publisher:      Microsoft Windows
        Company:        Microsoft Corporation
        Description:    Microsoft Windows Subsystem for Linux Launcher
        Product:        Microsoft« Windows« Operating System
        Prod version:   10.0.19041.1320
        File version:   10.0.19041.1320 (WinBuild.160101.0800)
        MachineType:    64-bit

This was on one of my Windows 10 systems with version 21H2.

The installation progress was as follows and took ome 3 minutes on a 50 Mibit/s fiber connection:

C:\temp>wsl.exe --install
Installing: Virtual Machine Platform
Virtual Machine Platform has been installed.
Installing: Windows Subsystem for Linux
Windows Subsystem for Linux has been installed.
Downloading: WSL Kernel
Installing: WSL Kernel
WSL Kernel has been installed.
Downloading: Ubuntu
The requested operation is successful. Changes will not be effective until the system is rebooted.

Time to play around (:

–jeroen

Posted in Batch-Files, Chocolatey, Development, Power User, Scoop, Scripting, Software Development, Windows, Windows Development, winget, WSL Windows Subsystem for Linux | Leave a Comment »

Windows “equivalents” for bash backticks in cmd and PowerShell

Posted by jpluimers on 2023/05/17

A while ago, I needed the file information of wsl.exe on one of my Windows systems.

On Linux, I would do something like file `which bash` where file will give the file details and which gets you the full path to bash.

The file equivalent on Windows for me is [Wayback/Archive] Sigcheck – Windows Sysinternals | Microsoft Docs, which is part of [Wayback/Archive] File and Disk Utilities – Windows Sysinternals | Microsoft Docs.

The which equivalent on Windows for me is [Wayback/Archive] where | Microsoft Docs.

Read the rest of this entry »

Posted in bash, Batch-Files, CommandLine, Development, PowerShell, PowerShell, Scripting, Software Development | 1 Comment »

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