Author: mario

Add real emojis and icons to mintty bash on windows

Posted on by mario

Installing git for windows isn’t hard anymore. I recommend installing “Git for Windows SDK” so you can install extra packages via Pacman. I like fish shell and tmux, and those aren’t included in the default installer. Either way, you can run bash and or fish on windows. The emojis and icons however don’t look very pretty, more like DOS-style.

Open a shell and cd to

C:\Program Files\Git\usr\share\mintty\emojis or C:\git-sdk-64\usr\share\mintty\emojis depending what installation you chose.

cd C:\git-sdk-64\usr\share\mintty\
mkdir emojis
cd emojis
curl -LO https://raw.githubusercontent.com/wiki/mintty/mintty/getemojis
getemoji -d
getemoji .

In mintty:
Options -> Text -> Emojis -> style: google
Options -> Text -> Character set -> UTF-8

jQuery bind after ajax load

Posted on by mario

Sometimes it is needed to add a jQuery event listener to an element that isn’t present in the DOM at the creation of the page but created during runtime or the result of an ajax call.

What doesn’t work is

jQuery(document).ready(function () {
    jQuery('.selector').on({
        click: function  (event){
            event.preventDefault();
            console.log('I work only with existing elements');
        }
    });
});

However, there is a way to achieve that.

jQuery(document).ready(function () {
    jQuery(document).on('click', '.selector', function (event){
        event.preventDefault();
        console.log('I work with a dynamically created elements');
    });
});

RedDot / Opentext Language variants for page / Sprachvarianten

Posted on by mario

VBS Script

Function getAvailableLanguageVariantsForPage(callingPageGuid)
    dim XMLString
    dim resXML
    dim xmlDoc
    dim xmlNodeList
    dim i
    XMLString = "<IODATA loginguid='" & session("LoginGuid") & "' sessionkey='" & session("SessionKey") & "'>" & _
            "<PROJECT>" & _
            "<LANGUAGEVARIANTS action='pageavailable' pageguid='"&callingPageGuid&"' />" & _
            "</PROJECT>" & _
            "</IODATA>"
    resXML = objIO.ServerExecuteXml(XMLString, sError)
    Set xmlDoc = server.CreateObject( "Msxml2.DOMDocument.4.0" )
    xmlDoc.loadXML( resXML )
    Set xmlNodeList = xmlDoc.getElementsByTagName( "LANGUAGEVARIANT" )
    For i = 0 To( xmlNodeList.Length - 1 )
        strAvailableInLanguageVariant = strAvailableInLanguageVariant & xmlNodeList.Item(i).getAttribute( "guid" )
        ' strAvailableInLanguageVariantName = xmlNodeList.Item(i).getAttribute( "language" )
    Next
    Set xmlDoc = Nothing
    Set xmlNodeList = Nothing
End Function

RedDot / Opentext Render Tags Action

Posted on by mario

String Trim Kürzen

<%!! Escape:HtmlEncode(Context:CurrentIndex.Page.Elements.GetElement(hdl_headlin­e).Value.PadRight(Int:15).Substring(Int:0, Int:15).Trim().Remove(Int:1, Int:3).ToUpper().Equals(String:test).ToString().Length.ToString()) !!%>

Get file extension / Dateiendung ermitteln

<%!! Escape:Text(<%att_med_pdf_filename%>.Substring(Escape:Text(<%att_med_pdf_filename%>).LastIndexOf(.)) !!%>

Cannot load modules/mod_fcgid.so into server: undefined symbol: ap_unixd_setup_child

Posted on by mario

I got the following error message after compiling apache against the latest OpenSSL version.
Cannot load modules/mod_fcgid.so into server: undefined symbol: ap_unixd_setup_child
It looks like a compiler error that happened, but it isn’t. In fact, there are two options why there is this error message appears.
One mod_unixd isn’t loaded or loaded after mod_fcgid. Two mod_fcgid can’t create a directory for the socket or the socket itself. aka file permissions.
That error message could be much better. It is misleading. This error does not happen on Windows. It comes from the old Unix philosophy: “Everything is a file”. This lead to a ton of code in the kernels. Even more, code exists for block devices in /dev. All that symlinks and magic directories. I wonder when “Everything is a file” will have exceptions everyone agrees on.

Choosing the right cipher / alias crypto wars part twelve

Posted on by mario

Choosing the right cipher for your server.

The wanted options:

  • Only 256 bit
  • Only Mac AEAD[1]  since in TLS 1.3 that is only allowed.
  • Kx (Key exchange) and Au (Authentication) PSK (pre-shared key) is not an option for a webserver
  • DSS cipher is for key auth
  • Kx=DH without an EC ( Elliptic curves) is not secure enough
  • Kx=RSA is weak
  • AESCCM is also a Cipher Block Chaining (CBC)
  • Aria is for Secure Real-Time Transport Protocol (SRTP)
  • DHE-RSA-AES256-GCM-SHA384 and DHE-RSA-CHACHA20-POLY1305 have no EC (elliptic curves)
/opt/openssl/bin/openssl ciphers -v ALL:COMPLEMENTOFALL | grep -v "(128)" | grep "Mac=AEAD" | grep -v "Kx=PSK" | \
grep -v "Au=PSK" | grep -v "Kx=RSAPSK" | grep -v "Au=DSS" | grep -v "Kx=RSA" | grep -v "Enc=AESCCM" | \
grep -v "Enc=ARIAGCM" | grep -v "Au=None" | grep -v "Kx=DH"

The Output

TLS 1.3
TLS_AES_256_GCM_SHA384 TLSv1.3 Kx=any Au=any Enc=AESGCM(256) Mac=AEAD
TLS_CHACHA20_POLY1305_SHA256 TLSv1.3 Kx=any Au=any Enc=CHACHA20/POLY1305(256) Mac=AEAD

TLS 1.2
ECDHE-ECDSA-CHACHA20-POLY1305 TLSv1.2 Kx=ECDH Au=ECDSA Enc=CHACHA20/POLY1305(256) Mac=AEAD
ECDHE-ECDSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH Au=ECDSA Enc=AESGCM(256) Mac=AEAD
ECDHE-RSA-CHACHA20-POLY1305 TLSv1.2 Kx=ECDH Au=RSA Enc=CHACHA20/POLY1305(256) Mac=AEAD
ECDHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH Au=RSA Enc=AESGCM(256) Mac=AEAD

At last POLY over AES for speed, and ECDSA over RSA also for speed.

SSLCipherSuite SSL ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-RSA-AES256-GCM-SHA384
SSLCipherSuite TLSv1.3 TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384

This was done with the current latest OpenSSL version 1.1.1l

Only for the completeness, GCM is Galois/Counter Mode[2]

 

[1] https://de.wikipedia.org/wiki/Authenticated_Encryption
[2] https://en.wikipedia.org/wiki/Galois/Counter_Mode

Author Archive

Archives by Month: