The Wiert Corner – irregular stream of stuff

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

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FileZilla not available as homebrew cask any more

Posted by jpluimers on 2019/01/07

After an outrage about AdWare mid last year on the Windows side of things, a new outrage on the Mac side of things at the end of last year caused FileZilla to be removed from the homebrew cask repository.

They do not care that there is a non-bundle version that (right now) does not have adware, as FileZilla could put AdWare in that version at any moment in time.

After trying to update, it will disappear, and you might get an error like this (a full log is below the fold):

"Error: Cask 'filezilla' is unavailable: No Cask with this name exists."

Too bad, as FileZilla was fun while it lasted.

For the dare devils, you might want to try the non-bundled version at fosshub, but please run it through at least VirusTotal before installing, and remember: you have to trust yet another man-in-the-middle!

Uninstalling now that the cask has been removed is described in:

Related:

 

–jeroen

Read the rest of this entry »

Posted in Apple, Power User, Windows | Leave a Comment »

Lock conflict on no wait transaction

Posted by jpluimers on 2019/01/04

Just in case I ever run into this again: [WayBack] Lock conflict on no wait transaction

–jeroen

Posted in Database Development, Development, Firebird, Power User | Leave a Comment »

Zabbix: the web scenario respose time trigger unit is seconds, not milliseconds

Posted by jpluimers on 2019/01/04

When you look at the “Response time” graph for a Zabbix web scenario step that fetches a URL, you’d think the unit would be milliseconds (as last/min/avg/max are all listed in milliseconds).

However an expression like this puts the trigger off the scale:

{owa.example.org:web.test.time[https OWA,https OWA returns http code 200,resp].last()}>100

This trigger however works:

{owa.example.org:web.test.time[https OWA,https OWA returns http code 200,resp].last()}>0.1

The [WayBack] web scenario step items topic indeed lists the web.test.time unit as seconds

–jeroen

Web scenario:

https OWA returns http code 20015 sec https://example.org/owa

https OWA returns http code 200 15 sec https://example.org/owa

Trigger:

"{owa.example.org:web.test.time[https

0.1″ class=”size-medium” /> {owa.example.org:web.test.time[https OWA,https OWA returns http code 200,resp].last()}>0.1

Posted in *nix, Monitoring, Power User, Zabbix | Leave a Comment »

DBA Blog 2.0: Installing Zabbix into Azure using a MySQL PaaS

Posted by jpluimers on 2019/01/04

Interesting: [WayBack] DBA Blog 2.0: Installing Zabbix into Azure using a MySQL PaaS

–jeroen

Posted in *nix, Azure Cloud, Cloud, Cloud Development, Development, Infrastructure, Monitoring, Power User, Software Development, Windows Azure, Zabbix | Leave a Comment »

The IOTAComponent.SetPropByName, when used for an integer property, always sets that property to 0 instead of the desired value.

Posted by jpluimers on 2019/01/03

Reminder to self: [WayBack]  …The IOTAComponent method SetPropByName, when used for an integer property, always sets that property to 0 instead of the desired value…. – Thomas Mueller (dummzeuch) – Google+

Fix in GExperts for the Rename Component functionality in [WayBack] GExperts / Code / Commit [r2318]: Workaround for an apparent OTA-bug: IOTAComponent.SetPropByName for integers always sets the property to 0 instead of the given value. Now we compare the values and if they don’t match use RTTY on the NativeObject to set it. This seems to work. (The bug exists on Delphi 2007 and 10.2, I haven’t tested other versions. The bugfix also works on these versions.):

         VInteger := StrToInt(Value);
         Result := AComponent.SetPropByName(PropertyName, VInteger);
+        if AComponent.GetPropValueByName(PropertyName, TempInt) then begin
+          // Setting an integer property often (always?) fails, so we check the value here and if
+          // it is different, we use the native object to set the value. This works.
+          // (Example: Try to set the Interval property of a TTimer. It always gets set to 0.)
+          // This happens in Delphi 2007 and 10.2, I haven't tested other versions.)
+          // -- 2018-07-16 twm
+          if TempInt <> VInteger then
+            SetPropValue(NativeObject, PropertyName, VInteger);
+        end;

Only the IOTAComponent interface is mentioned (only once!) in the documentation at [Archive.is] Using Editor Interfaces – RAD Studio, so I have ambivalent feelings on how important this is for Embarcadero to fix IOTAComponent.SetPropByName.

It has been broken since at least Delphi 2007 as per GExperts fix and XE3 as per [RSP-20895] IOTAComponent.SetPropByName always sets an integer to zero – Embarcadero Technologies.

–jeroen

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

Testing SMTP from the console on Linux, BSD and Mac OS: swaks and smtp-cli Perl script clients

Posted by jpluimers on 2019/01/03

Testing SMTP using telnet is tedious as you have to remember the commands and responses in the SMTP protocol. It gets even harder when doing SMTP AUTH, as then you have to base encode a bunch of strings [WayBack] How to Test SMTP AUTH using Telnet [Wiki] | NDCHost

Luckily there is a Perl script swaks: [WayBack] Swaks – Swiss Army Knife for SMTP which does ESMTP and LMTP as well as TLS.

The funny thing is that the repository at jetmore/swaks: Swaks – Swiss Army Knife for SMTP only has the readme, but the not the script which you can get from [WayBack] swaks.pl.

Despite that, most Linux distributions have an installation package.

[WayBack] swaks for OpenSuse is in the [WayBack] network repository, so for Tumbleweed (actually: Factory) on Raspberry Pi you need to perform this:

zypper addrepo http://download.opensuse.org/repositories/network/openSUSE_Factory_ARM/network.repo
zypper refresh
zypper install swaks

On Mac OS X it is even easier: if you have the homebrew package manager installed, you just install the [WayBack] swaks formula using the [WayBack] swaks.rb script:

brew install swaks

Note there is also the smtp-cli Perl script which I mentioned before at Fake/Mock SMTP servers and services for use during development, which also does TLS, but few environments have ready built packages for them. If you still want to try it out:

For SMTP AUTH:

swaks -tls --to jeroen.wiert.me@pluimers.com --from jeroen.wiert.me@pluimers.com --server smtp.xs4all.nl --auth-user username

Which prompts for the password, then outputs like this:

=== Trying smtp.xs4all.nl:25...
=== Connected to smtp.xs4all.nl.
<- 220 smtp-cloud3.xs4all.net ESMTP ESMTP server ready -> EHLO rmbpro1tbjwp
<-  250-smtp-cloud3.xs4all.net hello [188.206.68.219], pleased to meet you
<-  250-HELP
<-  250-AUTH LOGIN PLAIN
<-  250-SIZE 157286400
<-  250-8BITMIME
<-  250-STARTTLS
<- 250 OK -> STARTTLS
<- 220 Ready to start TLS === TLS started with cipher TLSv1:DHE-RSA-AES256-SHA:256 === TLS no local certificate set === TLS peer DN="/OU=Domain Control Validated/OU=PositiveSSL Wildcard/CN=*.xs4all.nl" ~> EHLO rmbpro1tbjwp
<~  250-smtp-cloud3.xs4all.net hello [188.206.68.219], pleased to meet you
<~  250-HELP
<~  250-AUTH LOGIN PLAIN
<~  250-SIZE 157286400
<~  250-8BITMIME
<~ 250 OK ~> AUTH LOGIN
<~ 334 ############ ~> anA=
<~ 334 ############ ~> ############################
<~ 235 ... authentication succeeded ~> MAIL FROM:<jeroen.wiert.me@pluimers.com>
<~  250 <jeroen.wiert.me@pluimers.com> sender ok
 ~> RCPT TO:<jeroen.wiert.me@pluimers.com>
<~  250 <jeroen.wiert.me@pluimers.com> recipient ok
 ~> DATA
<~ 354 enter mail, end with "." on a line by itself ~> Date: Wed, 19 Jul 2017 09:09:57 +0200
 ~> To: jeroen.wiert.me@pluimers.com
 ~> From: jeroen.wiert.me@pluimers.com
 ~> Subject: test Wed, 19 Jul 2017 09:09:57 +0200
 ~> Message-Id: <20170719090957.052207@rmbpro1tbjwp>
 ~> X-Mailer: swaks v20170101.0 jetmore.org/john/code/swaks/
 ~> 
 ~> This is a test mailing
 ~> 
 ~> .
<~ 250 smtp-cloud3.xs4all.net accepted mail mXA71v00C4jr6ac01XA9Bo for delivery ~> QUIT
<~  221 smtp-cloud3.xs4all.net ESMTP closing connection
=== Connection closed with remote host.

–jeroen

Posted in *nix, *nix-tools, Communications Development, Development, Hardware Development, Internet protocol suite, Linux, openSuSE, Power User, Raspberry Pi, SMTP, SuSE Linux, Tumbleweed | Leave a Comment »

Various online CSV to Markdown converters: best is Markdown Tables generator – TablesGenerator.com

Posted by jpluimers on 2019/01/03

TL;DR: use Markdown Tables generator – TablesGenerator.com as it has the most features.

A few tools that help converting CSV (with separators like comma, semicolon and tab) to Markdown online:

  1. [Archive.cs] Markdown Table Maker
    • Supports:
      • Use first line as headers
      • Auto detection of separator
      • Tab separated
      • Comma separated
      • Semicolon separated
    • Does not support:
      • Quote characters
  2. [WayBack] CSV to Markdown Table Generator — Donat Studios
    • Supports:
      • Use first line as headers
      • Tab separated
      • Comma separated
      • Semicolon separated
    • Does not support:
      • Quote characters
  3. [WayBack] Markdown Tables generator – TablesGenerator.com
    • Supports auto detection of:
      • Use first line as headers
      • Tab separated
      • Comma separated
      • Semicolon separated
      • Quote characters

–jeroen

Posted in CSV, Development, Lightweight markup language, MarkDown, Power User, Software Development | Leave a Comment »

android – How to release a Firemonkey control properly, in this case a child form with a parent? – Stack Overflow

Posted by jpluimers on 2019/01/02

For my archive as [Archive.is] TFmxObject.Release is deprecated since Delphi 10.2 Tokyo, and – worse – broken on some platforms: [WayBack] android – How to release a Firemonkey control properly, in this case a child form with a parent? – Stack Overflow

TFmxObject.Release uses TThread.ForceQueue internally, and that’s currently broken under Android (see discussion above).

As a workaround, a working cross-platform version for releasing an object from its event handler would be

procedure TForm.CloseBtnClick(Sender: TObject);
begin
  Parent := nil;
  TThread.CreateAnonymousThread(
  procedure
  begin
    TThread.Synchronize(nil,
    procedure
    begin
      Self.DisposeOf;
    end);
  end).Start;
end;

Instead of Synchronize you can also use Queue in above method.

What is important to keep in mind is that you should not keep any other references to the control you are releasing or you may hit the trouble down the road.

Via:

[WayBack] What are the solutions for a wizard like application (a single form with content changed depending on some action) in Firemonkey?

I’ve been using TFormStand to have a single form and load frames dynamically, but have some AV in the stept when changing frames…. –

R Gosp – Google+

–jeroen

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

Reddit: parodies on O RLY Books

Posted by jpluimers on 2019/01/02

Many more “Essential Programming Guides” that are not in the O RLY Parody Book Generator for Slack are at [WayBack]  O RLY Books.

Related: [WayBack] generate (500×700)

–jeroen

Read the rest of this entry »

Posted in Development, Fun, Quotes, Software Development, T-Shirt quotes | Leave a Comment »

Google Search string for either docwiki, Delphi 2007 or Delphi 2009 docs

Posted by jpluimers on 2019/01/02

These search the Delphi 2007 docs:

Similar for Delphi 2009 docs

The second ones search just English, and the first searches all languages.

Given the Google search indexing, the first might give a lot of Japanese search results:

https://www.google.com/#q=site:docs.embarcadero.com/products/rad_studio/radstudio2007/RS2007_helpupdates/HUpdate4+TPanel

I made shortcuts for the English one in Chrome:

Search engine definition
Search engine Delphi 2007 docs
Keyword d2007
URL with %s in place of query https://www.google.com/#q=site:docs.embarcadero.com/products/rad_studio/radstudio2007/RS2007_helpupdates/HUpdate4/EN+%s

 

Search engine definition
Search engine Delphi 20079 docs
Keyword d2009
URL with %s in place of query https://www.google.com/#q=site:docs.embarcadero.com/products/rad_studio/delphiAndcpp2009/HelpUpdate2/EN+%s

 

I did the same for the docwiki (where you cannot distinguish between languages in a generic way for all Delphi versions, as the language comes after the Delphi version and the kind of documentation (CodeExamples, Libraries, etc.)):

Search engine definition
Search engine Docwiki (all EN/DE/FR/JP)
Keyword docwiki
URL with %s in place of query https://www.google.com/#q=site:docwiki.embarcadero.com+%s

Reasoning:

  • It’s the earliest Delphi version having documentation on-line in HTML format.
  • The foundations of the RTL/VCL structure has not changed since then
  • The links can be archived in the WayBack machine and still look nice after archiving (no CSS fuzz that makes archived pages hard to read)

–jeroen

Posted in Delphi, Delphi 2007, Development, Software Development | 2 Comments »

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