Skip to main content

Making vanilla web-fontend (project with lit, web component) secured (discussions with chatGpt)

Query: I wn complete seperate .css/.scss and .html template file for my webcomponent.js like in angular. But with complete security. In lit. Use any js lib like domPurify, etc. But I wan complete safety. How? ChatGPT said: Thought for 16s Totally doable. Here’s a secure Lit setup with fully separate .html + .scss files , sanitized with DOMPurify , and rendered into the Shadow DOM without sacrificing performance. Folder layout src / lib/ safe- html .js components/ app-shell .html app-shell .scss app-shell .js 1) Install deps npm i dompurify npm i -D sass Vite will compile .scss . We’ll import the compiled CSS as text and attach it via adoptedStyleSheets (fast + memory-friendly). 2) app-shell.html (pure template file) Put your Carbon UI Shell markup here (no scripts). Example stub: < cds-header aria-label = "My App" > < cds-header-name prefix = "IBM" >[Platform] </ cds-header-name > < cds-header-glo...
Post a Comment

How to Add Self-Signed SSL Certificate in Java Apache Tomee / Tomcat Server and then launch your site in Compute Engine?

Assumptions:
  1. You already have Linux / Debian Compute Engine installed in your Google Cloud Plateform (GCP) with Java installed in the system.
  2. You have Downloaded and Installed your required version of Tomee / Tomcat Server and installed this in your Compute Engine
  3. You have an active external IP Address for your Compute Engine

Prodecure:
1. Set $JAVA_HOME path as your java home directory.
2. Set $CATALINA_BASE path as your Tomee / Tomcat server base directory
3. Type Command in terminal: $JAVA_HOME/bin/keytool -genkey -alias <tomcat> -keyalg RSA
Enter details as asked for like password, your details, etc
4. Type Command: sudo nano $CATALINA_BASE/conf/server.xml
Add following line in your server
<!-- Define an SSL Coyote HTTP/1.1 Connector on port 8443 -->
<Connector
           protocol="org.apache.coyote.http11.Http11NioProtocol"
           port="8443" maxThreads="200"
           scheme="https" secure="true" SSLEnabled="true"
           keystoreFile="${user.home}/.keystore" keystorePass="changeit"
           clientAuth="false" sslProtocol="TLS"/>
5. Activate TCP Port Number 8443 in your Compute Engine
6. Restart Tomee / Tomcat Server
7. Type command: curl https://localhost:8443 
To see the outcome
Or visit in Browser <Your Compute Engine IP Address:8443> 
8. Now, in browser, since in https:// it is a self signed certificate, it will show unsafe, back to safety, but you can do proceed with unsafe.
Note: This is more safer than http:// but is giving warning because certificate is my self signed generated using keytool in java bin folder and is not yet certified by any Certifying Autority, hence warning

Work Done
Location: Bardhaman, West Bengal, India

Comments

Post a Comment

If you have any doubts, please let me know.

Popular posts from this blog

Ubuntu Notes: Set up autossh as systemd useful-reminder commands

 sudo vim /etc/systemd/system/permanentAutossh.service ======================================== [Unit] Description=Keeps a tunnel to myOciFreeNat open After=network-online.target [Service] User=<username> Environment="AUTOSSH_GATETIME=0" ExecStart=/usr/bin/autossh -M 0 -q -N -o "ServerAliveInterval 60" -o "ServerAliveCountMax 3" -L 4322:127.0.0.1:5432 -i /<ssh_private_key_file_absolute_path> <username>@<ip_address> -p 22 [Install] WantedBy=multi-user.target ======================================== sudo systemctl daemon-reload sudo systemctl enable permanentAutossh sudo systemctl start permanentAutossh ================== sudo systemctl daemon-reload sudo systemctl restart permanentAutossh sudo systemctl status permanentAutossh ====================== sudo systemctl stop permanentAutossh sudo systemctl disable permanentAutossh sudo rm /etc/systemd/system/permanentAutossh.service
Post a Comment
Read more

C/C++ Postgres libpq execute query with params chatGpt example

PGresult *PQexecParams(PGconn *conn, const char *command, int nParams, const Oid *paramTypes, const char * const *paramValues, const int *paramLengths, const int *paramFormats, int resultFormat); give example ChatGPT said: ChatGPT Here’s a basic example demonstrating how to use PQexecParams in C++ to execute a parameterized query in PostgreSQL. Example: Inserting Data Using PQexecParams Let's assume we are inserting a row into a table called users with the following columns: id (integer) name (text) age (integer) cpp Copy code # include <iostream> # include <libpq-fe.h> # include <memory> # include <string> void checkResult (PGresult* res, PGconn* conn) { if ( PQresultStatus (res) != PGRES_COMMAND_OK) { std::cerr << "Execution failed: " << PQerrorMe...
Post a Comment
Read more

syslog cpp programming: learning using chatGcp

  Introduction to Syslog C++ August 27, 2024 This conversation may reflect the link creator’s personalized data, which isn’t shared and can meaningfully change how the model responds. You said: I am new to syslog in cpp programming n just starting. Can you teach me ChatGPT said: ChatGPT Sure! syslog is a standard for logging system messages in Unix-like operating systems. It provides a way to send log messages to the system log, which can then be collected and analyzed by various tools. Here's a basic guide to get you started with syslog in C++: 1. Include the Necessary Header To use syslog , you need to include the syslog.h header: cpp Copy code # include <syslog.h> 2. Open the Connection to syslog Before sending log messages, you need to open a connection to the syslog system. This is typically done at the start of your program: cpp Copy code openlog ( "your_program_name" , LOG_PID | LOG_CONS, LOG_USER); "your_program_name" : A string representing ...
Post a Comment
Read more