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How to use ToString method of PuppeteerSharp.ChromiumLauncher class

Best Puppeteer-sharp code snippet using PuppeteerSharp.ChromiumLauncher.ToString

ChromiumLauncher.cs

...54        }55        #endregion56        #region Public methods57        /// <inheritdoc />58        public override string ToString() => $"Chromium process; EndPoint={EndPoint}; State={CurrentState}";59        #endregion60        #region Private methods61        private static void PrepareChromiumArgs(LaunchOptions options, out List<string> chromiumArgs, out TempDirectory tempUserDataDirectory)62        {63            chromiumArgs = new List<string>();64            if (!options.IgnoreDefaultArgs)65            {66                chromiumArgs.AddRange(GetDefaultArgs(options));67            }68            else if (options.IgnoredDefaultArgs?.Length > 0)69            {70                chromiumArgs.AddRange(GetDefaultArgs(options).Except(options.IgnoredDefaultArgs));71            }72            else...

Program.cs

Source: Program.cs

...26            foreach (var service in services)27            {28                foreach (var account in (JsonArray)service)29                {30                    _emails.Add(account["login"].ToString().Trim('"'));31                }32            }33            _emails = _emails.Distinct().ToList();34            35            _emails.Sort((x, y) =>36            {37                var xx = x.Split('@'); // Split email to login and domain38                var yy = y.Split('@'); // Split email to login and domain (2)39                40                /* If domains are same - compare logins, else - compare domains */41                if (xx[1] == yy[1])42                {43                    return string.Compare(xx[0], yy[0], StringComparison.Ordinal);44                }...

ToString

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            {9            };10            var browser = await Puppeteer.LaunchAsync(options);11            var page = await browser.NewPageAsync();12            await page.ScreenshotAsync("google.png");13            await browser.CloseAsync();14            Console.WriteLine("Hello World!");15        }16    }17}

ToString

Using AI Code Generation

1using PuppeteerSharp;2using System;3{4    {5        static void Main(string[] args)6        {7            ChromiumLauncher chromiumLauncher = new ChromiumLauncher();8            Console.WriteLine(chromiumLauncher.ToString());9        }10    }11}12using PuppeteerSharp;13using System;14{15    {16        static void Main(string[] args)17        {18            Launcher launcher = new Launcher();19            Console.WriteLine(launcher.ToString());20        }21    }22}23using PuppeteerSharp;24using System;25{26    {27        static void Main(string[] args)28        {29            Page page = new Page();30            Console.WriteLine(page.ToString());31        }32    }33}34using PuppeteerSharp;35using System;36{37    {38        static void Main(string[] args)39        {40            Browser browser = new Browser();41            Console.WriteLine(browser.ToString());42        }43    }44}45using PuppeteerSharp;46using System;47{48    {49        static void Main(string[] args)50        {51            BrowserContext browserContext = new BrowserContext();52            Console.WriteLine(browserContext.ToString());53        }54    }55}56using PuppeteerSharp;57using System;58{59    {60        static void Main(string[] args)61        {62            Frame frame = new Frame();63            Console.WriteLine(frame.ToString());64        }65    }66}67using PuppeteerSharp;68using System;69{70    {71        static void Main(string[] args)72        {73            ElementHandle elementHandle = new ElementHandle();74            Console.WriteLine(elementHandle.ToString());75        }76    }77}

ToString

Using AI Code Generation

1using System;2using PuppeteerSharp;3{4    {5        static void Main(string[] args)6        {7            Console.WriteLine("Hello World!");8            var launcher = new ChromiumLauncher();9            Console.WriteLine(launcher.ToString());10        }11    }12}13using System;14using PuppeteerSharp;15{16    {17        static void Main(string[] args)18        {19            Console.WriteLine("Hello World!");20            var page = new Page();21            Console.WriteLine(page.ToString());22        }23    }24}25using System;26using PuppeteerSharp;27{28    {29        static void Main(string[] args)30        {31            Console.WriteLine("Hello World!");32            var target = new Target();33            Console.WriteLine(target.ToString());34        }35    }36}37using System;38using PuppeteerSharp;39{40    {41        static void Main(string[] args)42        {43            Console.WriteLine("Hello World!");44            var browser = new Browser();45            Console.WriteLine(browser.ToString());46        }47    }48}49using System;50using PuppeteerSharp;51{52    {53        static void Main(string[] args)54        {55            Console.WriteLine("Hello World!");56            var browserContext = new BrowserContext();57            Console.WriteLine(browserContext.ToString());58        }59    }60}61using System;62using PuppeteerSharp;63{64    {65        static void Main(string[] args)66        {67            Console.WriteLine("Hello World!");68            var frame = new Frame();69            Console.WriteLine(frame.ToString());70        }71    }72}73using System;74using PuppeteerSharp;75{76    {77        static void Main(string[] args)78        {79            Console.WriteLine("Hello World!");

ToString

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    static void Main(string[] args)6    {7        Console.WriteLine(ChromiumLauncher.ToString());8    }9}10using PuppeteerSharp;11using System;12using System.Threading.Tasks;13{14    static void Main(string[] args)15    {16        Console.WriteLine(ChromiumLauncher.GetPath());17    }18}19using PuppeteerSharp;20using System;21using System.Threading.Tasks;22{23    static void Main(string[] args)24    {25        Console.WriteLine(ChromiumLauncher.GetExecutablePath());26    }27}

ToString

Using AI Code Generation

1using PuppeteerSharp;2{3    {4        public override string ToString()5        {6            return "ChromiumLauncher";7        }8    }9}10using PuppeteerSharp;11{12    {13        public override string ToString()14        {15            return "Launcher";16        }17    }18}19using PuppeteerSharp;20{21    {22        public override string ToString()23        {24            return "Puppeteer";25        }26    }27}28using PuppeteerSharp;29{30    {31        public override string ToString()32        {33            return "Page";34        }35    }36}37using PuppeteerSharp;38{39    {40        public override string ToString()41        {42            return "Frame";43        }44    }45}46using PuppeteerSharp;47{48    {49        public override string ToString()50        {51            return "ElementHandle";52        }53    }54}55using PuppeteerSharp;56{57    {58        public override string ToString()59        {60            return "JSHandle";61        }62    }63}64using PuppeteerSharp;65{66    {67        public override string ToString()68        {69            return "ConsoleMessage";70        }71    }72}73using PuppeteerSharp;74{75    {76        public override string ToString()77        {

ToString

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            Console.WriteLine("Hello World!");9            Console.WriteLine("Launching Chromium");10            var browser = await Puppeteer.LaunchAsync(new LaunchOptions11            {12            });13            var page = await browser.NewPageAsync();14            Console.WriteLine("Press any key to close the browser");15            Console.ReadKey();16            await browser.CloseAsync();17        }18    }19}20using PuppeteerSharp;21using System;22using System.Threading.Tasks;23{24    {25        static async Task Main(string[] args)26        {27            Console.WriteLine("Hello World!");28            Console.WriteLine("Launching Chromium");29            var browser = await Puppeteer.LaunchAsync(new LaunchOptions30            {31            });32            var page = await browser.NewPageAsync();33            Console.WriteLine(page.ToString());34            Console.WriteLine("Press any key to close the browser");35            Console.ReadKey();36            await browser.CloseAsync();37        }38    }39}40using PuppeteerSharp;41using System;42using System.Threading.Tasks;43{44    {45        static async Task Main(string[] args)46        {47            Console.WriteLine("Hello World!");48            Console.WriteLine("Launching Chromium");49            var browser = await Puppeteer.LaunchAsync(new LaunchOptions50            {51            });52            var page = await browser.NewPageAsync();53            Console.WriteLine(page.MainFrame.ToString());54            Console.WriteLine("Press any key to close the browser");55            Console.ReadKey();56            await browser.CloseAsync();57        }58    }59}60using PuppeteerSharp;61using System;62using System.Threading.Tasks;63{64    {65        static async Task Main(string[] args)66        {

ToString

Using AI Code Generation

1var path = PuppeteerSharp.ChromiumLauncher.GetExecutablePath();2Console.WriteLine(path);3var path = PuppeteerSharp.ChromiumLauncher.GetExecutablePath();4Console.WriteLine(path);5var path = PuppeteerSharp.ChromiumLauncher.GetExecutablePath();6Console.WriteLine(path);7var path = PuppeteerSharp.ChromiumLauncher.GetExecutablePath();8Console.WriteLine(path);9var path = PuppeteerSharp.ChromiumLauncher.GetExecutablePath();10Console.WriteLine(path);11var path = PuppeteerSharp.ChromiumLauncher.GetExecutablePath();12Console.WriteLine(path);13var path = PuppeteerSharp.ChromiumLauncher.GetExecutablePath();14Console.WriteLine(path);15var path = PuppeteerSharp.ChromiumLauncher.GetExecutablePath();16Console.WriteLine(path);17var path = PuppeteerSharp.ChromiumLauncher.GetExecutablePath();18Console.WriteLine(path);19var path = PuppeteerSharp.ChromiumLauncher.GetExecutablePath();20Console.WriteLine(path);

ToString

Using AI Code Generation

1public class Example {2   public static void Main() {3      var options = new LaunchOptions { Headless = true };4      var browser = new ChromiumLauncher().LaunchAsync(options).Result;5      browser.Dispose();6   }7}8public class Example {9   public static void Main() {10      var options = new LaunchOptions { Headless = true };11      var browser = new ChromiumLauncher().LaunchAsync(options).Result;12      browser.Dispose();13   }14}15public class Example {16   public static void Main() {17      var options = new LaunchOptions { Headless = true };18      var browser = new ChromiumLauncher().LaunchAsync(options).Result;19      browser.Dispose();20   }21}22public class Example {23   public static void Main() {24      var options = new LaunchOptions { Headless = true };25      var browser = new ChromiumLauncher().LaunchAsync(options).Result;26      browser.Dispose();27   }28}29public class Example {30   public static void Main() {31      var options = new LaunchOptions { Headless = true };32      var browser = new ChromiumLauncher().LaunchAsync(options).Result;33      browser.Dispose();34   }35}36public class Example {37   public static void Main() {38      var options = new LaunchOptions { Headless = true };39      var browser = new ChromiumLauncher().LaunchAsync(options).Result;40      browser.Dispose();41   }42}43public class Example {44   public static void Main() {45      var options = new LaunchOptions { Headless = true };46      var browser = new ChromiumLauncher().LaunchAsync(options).Result;47      browser.Dispose();48   }49}50public class Example {51   public static void Main() {52      var options = new LaunchOptions { Headless = true };

StackOverFlow community discussions

Questions

Discussion

Remove all script elements using puppeteerSharp

Disabling Extensions in PuppeteerSharp

HtmlAgilityPack Issue in reading some sites

Disabling Extensions in PuppeteerSharp

Generating PDF file with PuppeteerSharp from webpage containing images linking to Azure Blob storage

getEventListeners is not defined in PuppeteerSharp

Web API Controller returning Task not always waits for task completion (puppeteer-sharp)

PuppeteerSharp and Page Level Proxies

Download image from page with Puppeteersharp

Convert HTML string to image

You can do something like this:

await page.EvaluateExpressionAsync("document.querySelectorAll('SCRIPT').forEach(e => e.remove())");

https://stackoverflow.com/questions/61451190/remove-all-script-elements-using-puppeteersharp

Not sure you can disable the built in download manager with --disable-extensions.

Another approach if it is just ZIP's you want to stop is to plumb this code in:-

await page.setRequestInterception(true);
page.on('request', request => {
    if (request.url().endsWith('.zip'))
        request.abort();
    else
      request.continue();
});

You may also want to lower case the url so you also trap .ZIP abnd Zip etc

Also on your goto you will need to abort the request e.g.

  await page
        .goto("https://winaero.com/downloads/Win7Games4Win10_8_81_v2.zip")
        .catch(r => r.abort);

https://stackoverflow.com/questions/65562685/disabling-extensions-in-puppeteersharp

It looks like the examples you're sending are Single Page Applications or highly JavaScript based. The first example returns the following HTML:

<!DOCTYPE html>
<html lang="fa-IR">
<head>
<script type="9055e798d34ceda9b8089665-text/javascript">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
            new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
        j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
        'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
    })(window,document,'script','dataLayer','GTM-MSQZK3S');</script>
<script type="9055e798d34ceda9b8089665-text/javascript">
        !function (t, e, n) {
            t.yektanetAnalyticsObject = n, t[n] = t[n] || function () {
                t[n].q.push(arguments)
            }, t[n].q = t[n].q || [];
            var a = new Date, r = a.getFullYear().toString() + "0" + a.getMonth() + "0" + a.getDate() + "0" + a.getHours(),
                    c = e.getElementsByTagName("script")[0], s = e.createElement("script");
            s.id = "ua-script-yn-2448-adv"; s.dataset.analyticsobject = n;
            s.async = 1; s.type = "text/javascript";
            s.src = "https://cdn.yektanet.com/rg_woebegone/scripts_v2/yn-2448-adv/rg.complete.js?v=" + r, c.parentNode.insertBefore(s, c)
        }(window, document, "yektanet");
    </script>
<base href="/">
<meta charset="UTF-8">
<meta name="theme-color" content="#2e9ed8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="language" content="fa" />
<link rel="apple-touch-icon" sizes="180x180" href="./apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="./favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="./favicon-16x16.png">
<link rel="manifest" href="./site.webmanifest">
<link rel="mask-icon" href="./safari-pinned-tab.svg" color="#5bbad5">
<meta name="msapplication-TileColor" content="#ffc40d">
<meta name="theme-color" content="#ffffff">
<meta name="google-signin-scope" content="profile email">
<link rel="search" type="application/opensearchdescription+xml" title="Faranesh" href="./opensearch.xml" />
<link rel="manifest" href="./manifest.json" />

As you can see there is no body and no title tag initially.

If you want to parse the content, including the JavaScript generated DOM elements you'll need to automate a Headless browser instead of parsing the raw HTML returned by the server.

https://github.com/dhamaniasad/HeadlessBrowsers

For example, try:

https://github.com/hardkoded/puppeteer-sharp

Not tested locally, but from the examples in their repository, something along these lines:

await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
var browser = await Puppeteer.LaunchAsync(new LaunchOptions
{
    Headless = true
});
var page = await browser.NewPageAsync();
await page.GoToAsync("https://faranesh.com/");

var title = @"document.title";
Console.WriteLine($"Title: {title}");

https://stackoverflow.com/questions/62081688/htmlagilitypack-issue-in-reading-some-sites

Not sure you can disable the built in download manager with --disable-extensions.

Another approach if it is just ZIP's you want to stop is to plumb this code in:-

await page.setRequestInterception(true);
page.on('request', request => {
    if (request.url().endsWith('.zip'))
        request.abort();
    else
      request.continue();
});

You may also want to lower case the url so you also trap .ZIP abnd Zip etc

Also on your goto you will need to abort the request e.g.

  await page
        .goto("https://winaero.com/downloads/Win7Games4Win10_8_81_v2.zip")
        .catch(r => r.abort);

https://stackoverflow.com/questions/65562685/disabling-extensions-in-puppeteersharp

I have found the solution, here it is for those who may be interested:

First, we should create a CDPSession like this:

var client = await page.Target.CreateCDPSessionAsync();

then we should Evaluate our script to get an element:

var body = await client.SendAsync("Runtime.evaluate", new { expression = "document.getElementsByTagName('input')[0]" });

and at last, we should use DOMDebugger with the element's objectId to get its event listeners:

var result = await client.SendAsync("DOMDebugger.getEventListeners", new { objectId = body["result"]["objectId"] });

https://stackoverflow.com/questions/66290791/geteventlisteners-is-not-defined-in-puppeteersharp

If anyone needs it, here is the code I used below :

        Base64Image img = new Base64Image();            
        using (Page page = await parentPage.Browser.NewPageAsync())
        {                
            var tcs = new TaskCompletionSource();
            page.Response += async (sender, e) =>
            {
                string contentType = null;
                string[] imageMimeTypes = { "image/jpeg", "image/png", "image/webp", "image/gif" };

                if (e.Response.Headers.ContainsKey("content-type"))
                    contentType = (string)e.Response.Headers["content-type"].ToLower();

                if (e.Response.Headers.ContainsKey("Content-Type"))
                    contentType = (string)e.Response.Headers["Content-Type"].ToLower();

                if (imageMimeTypes.Any(t => t == contentType))
                {
                    img.ContentType = contentType;
                    

                    await e.Response.BufferAsync().AsTask().ContinueWith(async (data) => img.Bytes = await data);   
                    tcs.TrySetResult();
                }
            };
            await Task.WhenAll(page.GoToAsync(uri.AbsoluteUri), tcs.Task);
            await page.CloseAsync();
        }
        return img;

https://stackoverflow.com/questions/65372341/download-image-from-page-with-puppeteersharp

Thanks all for your responses. I used HtmlRenderer external dll (library) to achieve the same and found below code for the same.

Here is the code for this

public void ConvertHtmlToImage()
{
   Bitmap m_Bitmap = new Bitmap(400, 600);
   PointF point = new PointF(0, 0);
   SizeF maxSize = new System.Drawing.SizeF(500, 500);
   HtmlRenderer.HtmlRender.Render(Graphics.FromImage(m_Bitmap),
                                           "<html><body><p>This is some html code</p>"
                                           + "<p>This is another html line</p></body>",
                                            point, maxSize);

   m_Bitmap.Save(@"C:\Test.png", ImageFormat.Png);
}

https://stackoverflow.com/questions/17832304/convert-html-string-to-image

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