Stoyan Dimov stoyandimov

Authentication and Authorization

Authentication means determining who a particular user is. Authorization means applying rules about what they can do. Blazor contains features for handling both aspects of this.

It worth remembering how the overall goals differ between server-side Blazor and client-side Blazor:

Server-side Blazor applications run on the server. As such, correctly-implemented authorization checks are both how you determine which UI options to show (e.g., which menu entries are available to a certain user) and where you actually enforce access rules.
Client-side Blazor applications run on the client. As such, authorization is only used as a way of determining what UI options to show (e.g., which menu entries). The actual enforcement of authorization rules must be implemented on whatever backend server your application operates on, since any client-side checks can be modified or bypassed.

Authentication-enabled templates for Server-Side Blazor

JQ to filter JSON by value

Syntax: cat <filename> | jq -c '.[] | select( .<key> | contains("<value>"))'

Example: To get json record having _id equal 611

cat my.json | jq -c '.[] | select( ._id | contains(611))'

Remember: if JSON value has no double quotes (eg. for numeric) to do not supply in filter i.e. in contains(611)

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

#Transform web.config on build

Unload the project
Edit .csproj
Append figure 1 to the end of the file just before </Project>; v12.0 my change depending on your version of Visual Studio
Save .csproj and reload
Open configuration manager
Add a new Configuration Name: Base. Copy settings from: Release
Copy the contents of your web.config
Right click Web.Config > Add Config Transformation

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

	sudo su -
	mkdir -p /opt/bin
	curl -L https://github.com/docker/compose/releases/download/1.5.1/docker-compose-`uname -s`-`uname -m` > /opt/bin/docker-compose
	chmod +x /opt/bin/docker-compose

	<%

	' ****************************************************************************
	' Sub: GetUtcOffsetMinutes
	' Description: Gets the number of minutes between local time and UTC.
	'
	' Params: None
	' ****************************************************************************
	Function GetUtcOffsetMinutes()

	<?php

	use Zend\Db\Sql\Select;

	// basic table
	$select0 = new Select;
	$select0->from('foo');
	// 'SELECT "foo".* FROM "foo"';