Month: May 2023

Clear the NuGet Package Cache using the Command Line

The command dotnet nuget locals all --clear clears all local NuGet resources in the http-request cache, temporary cache, and machine-wide global packages folder.

The dotnet nuget locals command has two options: -c or --clear and -l or --list. The -c option clears the cache, and the -l option lists the cache.

The all argument in the command tells the dotnet nuget locals command to clear all three types of cache: http-request cache, temporary cache, and machine-wide global packages folder.

To clear the NuGet cache using the command line, you can run the following command:

dotnet nuget locals all --clear

This command will clear all local NuGet resources, including the http-request cache, temporary cache, and machine-wide global packages folder.

Note: If you are using Visual Studio, you can also clear the NuGet cache from the Tools menu. In the NuGet Package Manager menu, select Package Manager Settings. In the Options dialog, click the Clear All NuGet Cache(s) button.

Check Authorization Rules Programatically in ASP.NET Blazor

_Imports.razor

@using Microsoft.AspNetCore.Authorization
@using Microsoft.AspNetCore.Components.Authorization

Pages/ProceduralLogic.razor:

@page "/procedural-logic"
@inject IAuthorizationService AuthorizationService

<h1>Procedural Logic Example</h1>

<button @onclick="@DoSomething">Do something important</button>

@code {
    [CascadingParameter]
    private Task<AuthenticationState>? authenticationState { get; set; }

    private async Task DoSomething()
    {
        if (authenticationState is not null)
        {
            var authState = await authenticationState;
            var user = authState?.User;

            if (user is not null)
            {
                if (user.Identity is not null && user.Identity.IsAuthenticated)
                {
                    // ...
                }

                if (user.IsInRole("Admin"))
                {
                    // ...
                }

                if ((await AuthorizationService.AuthorizeAsync(user, "content-editor"))
                    .Succeeded)
                {
                    // ...
                }
            }
        }
    }
}

References
https://learn.microsoft.com/en-us/aspnet/core/blazor/security/?view=aspnetcore-6.0#procedural-logic

Install V2Ray on Linux

bash <(curl -L https://raw.githubusercontent.com/v2fly/fhs-install-v2ray/master/install-release.sh)

/etc/systemd/system/v2ray.service

[Unit]
Description=V2Ray Service
Documentation=https://www.v2fly.org/
After=network.target nss-lookup.target

[Service]
User=nobody
CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
NoNewPrivileges=true
ExecStart=/usr/local/bin/v2ray run -config /usr/local/etc/v2ray/config.json
Restart=on-failure
RestartPreventExitStatus=23

[Install]
WantedBy=user. Target
installed: /usr/local/bin/v2ray
installed: /usr/local/share/v2ray/geoip.dat
installed: /usr/local/share/v2ray/geosite.dat
installed: /usr/local/etc/v2ray/config.json
installed: /var/log/v2ray/
installed: /var/log/v2ray/access.log
installed: /var/log/v2ray/error.log
installed: /etc/systemd/system/v2ray.service
installed: /etc/systemd/system/[email protected]
systemctl enable v2ray; systemctl start v2ray

Remove V2Ray

# bash <(curl -L https://raw.githubusercontent.com/v2fly/fhs-install-v2ray/master/install-release.sh) --remove

References
https://github.com/v2fly/fhs-install-v2ray