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

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Archive for the ‘JavaScript/ECMAScript’ Category

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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 »

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 »

Bookmarklet-Youtube: Add all subscriptions to watch-later

Posted by jpluimers on 2023/05/16

Saved because I want to learn how to save a YouTube URL into a [Wayback/Archive] YouTube: Watch later play list, as doing it by hand takes at least 10 seconds per URL.

[Wayback/Archive] Bookmarklet-Youtube: Add all subscriptions to watch-later

–jeroen

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

Some more links on bookmarklets: this time ones that operate on (selection of text on) the current page

Posted by jpluimers on 2023/05/04

As a continuation of the various bookmarklet posts, here is one with information on bookmarklets that operate on the current page, for instance when you already got text selected.

All via [Wayback/Archive] bookmarklet that works on link of current selection – Google Search

–jeroen

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

The Wordle word list is in the source JavaScript file (via Isotopp)

Posted by jpluimers on 2023/05/03

Oh well: [Archive] Kris on Twitter: “L> add AI there and you’ve got a paper R> I just had a look, and that thing is pretty much completely offline. the JS contains the entire dictionary C> well would you look at that, might want to use the actual dictionary then “

Actually, it was dead easy to copy the sources to a gist and host the gist:

And of course someone distilled the wordle word solutions list into some statistics:

More was done at [Wayback/Archive] Reverse Engineering Wordle | Robert Reichel.

Which got updated to the statistics of the union of solution and accepted words list

Another tool that helps solving is [Wayback/Archive] willthames/wordle-guesses which I found via [Archive] Will Thames on Twitter: “I spent some of my New Year’s Day writing a program to generate the best first two guesses for Wordle. Time well spent, I think: …”.

Jilles then posted a video on how to view the source [Archive] Jilles🏳️‍🌈 on Twitter: “How to cheat on #wordle …”.

To make Wordle even harder, there is Absurdle, an adversorial version of Wordle that decides the word upon your input until it runs out of decisions:

A Dutch and German version were added as Woordle and Wordle (which missed being called WorDeL and Wortle):

Shortly followed by another German version (always the Austrians setting themselves apart), and a French one (which messed Le Word as perfect name):

There is also a four-letter word edition, actually two of them:

There is a Prime version too:

Felienne posted a cool analysis bot that watches Wordle tweets and uses them to estimate the correct Wordle solution:

Oh, there is a single Letterle, which on average takes you some 13 tries when disregarding letter frequencies (which likely should not matter):

When you think Absurdle was going far, look at what happened Wordlinator:

Two search tools that are very useful:

If you are desperate, these solvers can help; the second one is more flexible, the first one faster, and the last one is pure cheating:

  1. [Wayback/Archive] Ruining the fun: a Wordle auto-solver – by Tom
  2. [Wayback/Archive] Wordle Helper – Suggestion and Solver Tool – Gamer Journalist
  3. [Wayback/Archive] Wordle Answers (February 2022) – Today’s Solution

I tried referencing all posts in the somewhat broken thread at:

Some links that did not make it into that thread (yet):

Having good start words and an on-line dictionary help:

And there is always a really fast way: [Wayback/Archive] Wordle Solver | Not Fun at Parties (explained in [Wayback/Archive] Ruining the fun: a Wordle auto-solver – by Tom)

–jeroen

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Posted in Development, JavaScript/ECMAScript, LifeHacker, Natural Languages, Power User, Scripting, Software Development | Leave a Comment »

I want to check out how to do POST requests using bookmarklets in order to save URLs to the WayBack machine

Posted by jpluimers on 2023/04/27

I want to check out how to do POST requests using bookmarklets in order to save URLs to the Wayback machine.

The reason is that every few months or so, saving a page the normal way through a something like https://web.archive.org/save/URL fails for one reason or the other, but going to https://web.archive.org/save, then entering URL, and pressing “SAVE PAGE” button works fine:

The the failing way above is using a GET request, the succeeding workaround will open https://web.archive.org/save/URL  using the below POST request (where I omitted some HTTP cookies and HTTP header fields for brevity).

  • POST request using PowerShell:
    $session = New-Object Microsoft.PowerShell.Commands.WebRequestSession
$session.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36"
Invoke-WebRequest -UseBasicParsing -Uri "https://web.archive.org/save/URL" `
-Method "POST" `
-WebSession $session `
-Headers @{
"method"="POST"
  "origin"="https://web.archive.org"
  "referer"="https://web.archive.org/save"
} `
-ContentType "application/x-www-form-urlencoded" `
-Body "url=URL&capture_outlinks=on&capture_all=on&capture_screenshot=on"
  • POST request using cURL on bash:
    curl 'https://web.archive.org/save/URL' \
  -H 'origin: https://web.archive.org' \
  -H 'content-type: application/x-www-form-urlencoded' \
  -H 'referer: https://web.archive.org/save' \
  --data-raw 'url=URL&capture_outlinks=on&capture_all=on&capture_screenshot=on' \
  --compressed
  • POST request using the fetch API in JavaScript:
    fetch("https://web.archive.org/save/URL", {
  "headers": {
    "content-type": "application/x-www-form-urlencoded",
  },
  "referrer": "https://web.archive.org/save",
  "body": "url=URL&capture_outlinks=on&capture_all=on&capture_screenshot=on",
  "method": "POST",
  "mode": "cors"
});

BTW: Yes, I know that URL is not a valid URL, so it will return a page with “http://url/ URL syntax is not valid.“.

All links below via [Wayback/Archive] bookmarklet post request – Google Search:

I tried to put createFormSubmittingBookmarklets/createFormSubmitBookmarklets.js in a bookmarklet using both userjs.up.seesaa.net/js/bookmarklet.html and skalman.github.io/UglifyJS-online. That failed: somehow this code does not want to run as bookmarklet.

Running it from the console is fine though, and gave me this basic bookmarklet template:

javascript:function sf(ur,ty,fd){function me(tg,pr){var el=document.createElement(tg);for(const[nm,vl]of Object.entries(pr)){el.setAttribute(nm,vl);}return el}const fm=me("form",{action:ur,method:ty,style:"display:hidden;"});for(const[nm,vl]of Object.entries(fd)){fm.appendChild(me("input",{name:nm, value:vl}))}document.body.appendChild(fm);fm.submit()}sf("https://web.archive.org/save","post",{"url":"URL","capture_outlinks":"on","capture_all":"on","capture_screenshot":"on","wm-save-mywebarchive":"on","email_result":"on","":"SAVE PAGE"});

There bold URL there is the URL to be saved. I need to test this, then rework it to become parameterised.

–jeroen

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

Eight Dollars – Chrome Web Store: see who fell for the twitter blue scam

Posted by jpluimers on 2023/04/03

[Wayback/Archive] Eight Dollars – Chrome Web Store

It’s available for other browsers too (Brave, FireFox, Edge, Opera; Safari should become supported too), and more importantly: open source as well at [Wayback/Archive] wseagar/eight-dollars: A browser extension that shows twitter blue vs real verified users.

Via [Wayback/Archive] Alan Neilan on Twitter: “@IanColdwater pssst check out”.

––jeroen

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Posted in CSS, Development, HTML, JavaScript/ECMAScript, PowerShell, Scripting, Software Development, Web Development | Leave a Comment »

llamasoft/polyshell: A Bash/Batch/PowerShell polyglot!

Posted by jpluimers on 2023/03/16

PolyShell is a script that’s simultaneously valid in Bash, Windows Batch, and PowerShell (i.e. a polyglot).

[Wayback/Archive] llamasoft/polyshell: A Bash/Batch/PowerShell polyglot!

Need to check this out, as often I have scripts that have to go from one language to the other or vice versa.

Maybe it enables one language to bootstrap functionality in the other?

The quest

The above polyglot started with a quest to see if I can could include some PowerShell statements in a batch file with two goals:

  1. if the batch file started from the PowerShell command prompt, then execute the PowerShell code
  2. if the batch file started from the cmd.exe command prompt, then have it start PowerShell with the same command-line arguments

The reasoning is simple:

  1. PowerShell scripts will start from the PATH only when PowerShell is already running
  2. Batch files start from the path when either cmd.exe or PowerShell are running

Lots of users still live in the cmd.exe world, but PowerShell scripts are way more powerful, and since PowerShell is integrated in Windows since version 7, so having a batch file bootstrap PowerShell still makes sense.

Since my guess was about quoting parameters the right way, my initial search for the link below was [Wayback/Archive] powershell execute statement from batch file quoting – Google Search.

I have dug not yet into this, so there are still…

Many links to read

These should give me a good idea how to implement a polyglot batch file/PowerShell script.

–jeroen

Posted in *nix, *nix-tools, bash, bash, Batch-Files, Development, JavaScript/ECMAScript, Perl, Polyglot, Power User, PowerShell, Scripting, Software Development | Leave a Comment »

For my reading list: some links on Twitter bookmarklets

Posted by jpluimers on 2023/03/15

Yup, web browser bookmarklets, though hardly published about any more, I still like them (and wrote about them before). With a little bit, usually unreadable, JavaScript, they can add magical functionality to your browser.

So here are some links on Twitter related bookmarklets:

All via [Wayback/Archive] twitter bookmarklet – Google Search.

–jeroen

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

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