Christian Korneck christian-korneck

Why?
- describe issue (motivation of the change)
  - describe error scenario ("as-is it throws unhandled exception on special characters").
  - introduce issue report (i.e. cite linter warnings)
  - describe shortcomings ("I'm unhappy with [...]: No timeouts, features like x are clumsy.")
- illustrate requirement
  - usage need ("x is only works on pre-Python 3.7, but we want to support all Python 3 versions")
  - out of date ("remove outdated property. x is no longer defined, but was still referenced in the docs")
  - runtime or dev env change ("API has changed, fixing the example")
describe objective

quick & dirty powershell query with appsmith

(WARNING - very insecure)

on windows worker (here on docker host):

webify powershell -c "Get-WmiObject -Class win32_processor | Select-Object -Property Caption, DeviceID, Manufacturer, MaxClockSpeed, Name, SocketDesignation | ConvertTo-Json -Compress"
2023/03/26 16:31:11 listening on :8080, proxying to powershell -c Get-WmiObject -Class win32_processor | Select-Object -Property Caption, DeviceID, Manufacturer, MaxClockSpeed, Name, SocketDesignation | ConvertTo-Json -Compress

overwrite a function (or just anything). Target doesn't need to be exported. Go doesn't support overloading. Can't be done multiple times (i.e. trying to overwrite time.Sleep() fails as it's actually the unexported runtime.timeSleep()).

package main

import (
	"fmt"
	_ "unsafe" // required to enable go:linkname

	"log"

sudo grep -Eao '(-?[A-Z0-9]{5}){5}' /sys/firmware/acpi/tables/MSDM

\\wsl$\<distro>
\\wsl$\fedoraremix
\\wsl$\AlmaLinux-8
\\wsl$\Debian
\\wsl$\Ubuntu
\\wsl$\Ubuntu-22.04

on W11 also: \\wsl.localhost\, i.e. \\wsl.localhost\fedoraremix

build and install Python 3.7.13 from source on Fedora 36

dnf -y install gcc openssl-devel bzip2-devel libffi-devel zlib-devel xz-devel wget pkg-config
# optional:
# dnf -y groupinstall development-tools
cd /usr/src/
wget https://www.python.org/ftp/python/3.7.13/Python-3.7.13.tgz
tar xzf Python-3.7.13.tgz
cd Python-3.7.13/

Postman - use request output as input for another request

Let's assume we request a JWT token from one endpoint and want to use it as Bearer Token in another request to a different endpoint.

We can:

1. store the output (or part of it) in an environment variable
- in the JWT request create a test and add some javascript. This selects the value of the JSON token {root}.token and stores it in a Postman env var token:
```
token = pm.response.json().token;
```

pm.environment.set("token", token);

	@echo off
	setlocal

	REM batch script that executes the command that it received via STDIN
	REM (whitespaces should be working)

	for /f "tokens=*" %%i in ('find /v ""') do set MYCMD=%%i
	cmd.exe /c %MYCMD%
	set myerrorlevel=%errorlevel%

	"""Use it like this: main('192.168.1.0/24')"""

	IPV4_MIN = 0
	IPV4_MAX = 0xFFFFFFFF

	def not_network(ipv4_address, ipv4_netmask):
	assert IPV4_MIN <= ipv4_address <= IPV4_MAX
	assert IPV4_MIN <= ipv4_netmask <= IPV4_MAX

	def hostmask_netmask(m):

	@echo off
	setlocal

	set inetgw=192.168.0.1

	route delete 0.0.0.0 mask 0.0.0.0 "%inetgw%"

	route delete 0.0.0.0 mask 248.0.0.0 "%inetgw%"
	route delete 8.0.0.0 mask 254.0.0.0 "%inetgw%"
	route delete 11.0.0.0 mask 255.0.0.0 "%inetgw%"