Files
qrcodeService/QRCodeService/Controllers/Api/LinkController.cs
zhangqi 65dcef0f64 update:重复创建也返回成功
创建时可直接返回二维码
2021-03-04 10:52:30 +08:00

85 lines
3.1 KiB
C#

using Domain.AggregateModel.AppAggregate;
using Domain.AggregateModel.LinkAggregate;
using Microsoft.AspNetCore.Mvc;
using QRCodeService.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MediatR;
using QRCodeService.Application.Queries;
using QRCodeService.Application.Commands;
using QRCodeService.Infrastructure.Middlewares;
using QRCodeService.Options;
using QRCoder;
using System.Drawing;
using System.IO;
using Microsoft.Extensions.Options;
namespace QRCodeService.Controllers.Api
{
[Route("api/v1/[controller]")]
[ApiController]
public class LinkController:ControllerBase
{
readonly IMediator mediator;
readonly ILinkQueries linkQueries;
readonly IOptions<ServiceOption> option;
public LinkController(IMediator mediator, ILinkQueries queries, IOptions<ServiceOption> option)
{
this.mediator = mediator;
this.linkQueries = queries;
this.option = option;
}
[Route("i/{shortCode}/")]
[HttpGet]
public async Task<IActionResult> GetQrCodeImage(string shortCode)
{
var link = await linkQueries.GetLinkAsync(shortCode);
if (link == null)
{
return NotFound();
}
var qrCodeGenerator = new QRCodeGenerator();
var data = qrCodeGenerator.CreateQrCode($"{option.Value.BaseUrl}r/{link.ShortCode}", QRCodeGenerator.ECCLevel.Q);
var qrCode = new QRCode(data);
using (var stream = new MemoryStream())
{
qrCode.GetGraphic(10, Color.Black, Color.White, null, 15, 6, false).Save(stream, System.Drawing.Imaging.ImageFormat.Png);
return File(stream.ToArray(), "image/png");
}
}
/// <summary>
/// 创建二维码 如果请求头的Accept类型是image/png 则会返回二维码图片 否则返回二维码地址
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
[CheckSign]
[HttpPost]
public async Task<IActionResult> Create(CreateLinkModel input)
{
var command = new CreateLinkCommand(input.SuffixUrl,1);
var link = await mediator.Send(command);
if (link==null)
{
return BadRequest();
}
var accept = Request.Headers["Accept"];
if(accept == "image/png")
{
var qrCodeGenerator = new QRCodeGenerator();
var data = qrCodeGenerator.CreateQrCode($"{option.Value.BaseUrl}r/{link.ShortCode}", QRCodeGenerator.ECCLevel.Q);
var qrCode = new QRCode(data);
using (var stream = new MemoryStream())
{
qrCode.GetGraphic(10, Color.Black, Color.White, null, 15, 6, false).Save(stream, System.Drawing.Imaging.ImageFormat.Png);
return File(stream.ToArray(), "image/png");
}
}
return Ok($"{option.Value.BaseUrl}r/{link.ShortCode}");
}
}
}