Files
raven/server/AyaNova/Controllers/ReportController.cs
2020-08-24 16:23:20 +00:00

134 lines
4.4 KiB
C#

using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Routing;
using Microsoft.AspNetCore.Authorization;
using Microsoft.Extensions.Logging;
using AyaNova.Models;
using AyaNova.Api.ControllerHelpers;
using AyaNova.Biz;
using AyaNova.Util;
using PuppeteerSharp;
namespace AyaNova.Api.Controllers
{
[ApiController]
[ApiVersion("8.0")]
[Route("api/v{version:apiVersion}/report")]
[Produces("application/json")]
[Authorize]
public class ReportController : ControllerBase
{
private readonly AyContext ct;
private readonly ILogger<ReportController> log;
private readonly ApiServerState serverState;
/// <summary>
/// ctor
/// </summary>
/// <param name="dbcontext"></param>
/// <param name="logger"></param>
/// <param name="apiServerState"></param>
public ReportController(AyContext dbcontext, ILogger<ReportController> logger, ApiServerState apiServerState)
{
ct = dbcontext;
log = logger;
serverState = apiServerState;
}
[HttpGet("render-test")]
[AllowAnonymous]
public async Task<IActionResult> GetTestReport([FromRoute] string test)
{
if (!serverState.IsOpen)
return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
string outputFile = FileUtil.NewRandomTempFilesFolderFileName;
switch (test)
{
case "chrome-reddit-to-pdf":
//first test, just render a web page to pdf and return it
//return PhysicalFile(filePath, mimetype, dbObject.DisplayFileName);
outputFile += ".pdf";
//http://www.puppeteersharp.com/api/index.html
//https://github.com/hardkoded/puppeteer-sharp
await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
var browser = await Puppeteer.LaunchAsync(new LaunchOptions
{
Headless = true
});
var page = await browser.NewPageAsync();
await page.GoToAsync("https://github.com/hardkoded/puppeteer-sharp");
await page.PdfAsync(outputFile);
return PhysicalFile(outputFile, "application/pdf");
}
return NotFound(test);
}
//---------------------------------------------------------------------
[HttpGet("render")]
[AllowAnonymous]
public async Task<IActionResult> GetPdfReport([FromRoute] string url)
{
if (!serverState.IsOpen)
return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
// byte[] buffer = readfromdatabase();
// return new FileContentResult(buffer, "text/html");
//first test, just render a web page to pdf and return it
//return PhysicalFile(filePath, mimetype, dbObject.DisplayFileName);
//http://www.puppeteersharp.com/api/index.html
//https://github.com/hardkoded/puppeteer-sharp
await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
//sample CSS
var templateCSS = @"
@page {
margin: 1cm;
}
@page :first {
margin: 2cm;
}";
//sample HTML
var templateHtml = "<div><h1>Hello world!</h1></div>";
using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }))
using (var page = await browser.NewPageAsync())
{
await page.AddStyleTagAsync(new AddTagOptions { Content = templateCSS });
await page.SetContentAsync(templateHtml);
var pdfBuffer = await page.PdfDataAsync();
return new FileContentResult(pdfBuffer, "application/pdf");
}
}
//-----------------------------------------
//------------
/*
NOTES/TODO during testing
Need job to automatically erase any temp files older than 5 minutes (or whatever)
*/
}//eoc
}//eons