How to use GetUserAgentAsync method of PuppeteerSharp.Browser class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Browser.GetUserAgentAsync

BrowserUtils.cs

Source:BrowserUtils.cs Github

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...79 NavigationOptions navigationOptions = new NavigationOptions() {80 Timeout = 0,81 WaitUntil = waitUntilNavigations82 };83 string originalUserAgent = await browser.GetUserAgentAsync();84 await page.SetUserAgentAsync($"{originalUserAgent} {USER_AGENT_SUFFIX}");85 if (cookies.Any()) {86 await page.SetCookieAsync(cookies.ToArray());87 }88 await page.GoToAsync(url, navigationOptions);89 await InjectCustomStylesAsync(page, ref options);90 91 bool hasPageNumbers = await page.EvaluateFunctionAsync<bool>("(window.UltimatePDF? window.UltimatePDF.hasPageNumbers : function() { return false; })");92 if (hasPageNumbers) {93 /*94 * When the layout has page numbers, we first retrieve a95 * first blank pdf to calculate the number of pages.96 * Then, knowing how many pages, we can layout the headers and footers,97 * and retrieve the final pdf.98 */99 byte[] blankContents = await page.PdfDataAsync(options);100 using (var blankPdf = new PDFUtils(blankContents)) {101 await page.EvaluateFunctionAsync("window.UltimatePDF.layoutPages", blankPdf.Pages);102 return await page.PdfDataAsync(options);103 }104 } else {105 return await page.PdfDataAsync(options);106 }107 } finally {108 await Cleanup(page);109 }110 } finally {111 Cleanup(browser);112 }113 }114 private Task InjectCustomStylesAsync(Page page, ref PdfOptions options) {115 /*116 * It seems that Puppeteer is not overriding the page styles from the print stylesheet.117 * As a workaround, we inject a <style> tag with the @page overrides at the end of <head>.118 * This issue might be eventually resolved in Puppeteer, and seems to be tracked by https://github.com/GoogleChrome/puppeteer/issues/393119 */120 string overrides = string.Empty;121 if (!options.PreferCSSPageSize && options.Width != null && options.Height != null) {122 overrides += $"size: {options.Width} {options.Height}; ";123 }124 if (options.MarginOptions.Top != null) {125 overrides += $"margin-top: {options.MarginOptions.Top}; ";126 }127 if (options.MarginOptions.Right != null) {128 overrides += $"margin-right: {options.MarginOptions.Right}; ";129 }130 if (options.MarginOptions.Bottom != null) {131 overrides += $"margin-bottom: {options.MarginOptions.Bottom}; ";132 }133 if (options.MarginOptions.Left != null) {134 overrides += $"margin-left: {options.MarginOptions.Left}; ";135 }136 if (!string.IsNullOrEmpty(overrides)) {137 /* Change the options so that Puppeteer respects our overrides */138 options.PreferCSSPageSize = true;139 options.Width = options.Height = null;140 options.MarginOptions = new MarginOptions();141 /* We must add the <style> tag at the end of <body> to make sure it is not overriden */142 string pageOverrides = "@page { " + overrides + "}";143 return page.EvaluateExpressionAsync($"const style = document.createElement('style'); style.innerHTML = '{pageOverrides}'; document.head.appendChild(style);");144 } else {145 return Task.CompletedTask;146 }147 }148 public async Task<byte[]> ScreenshotPNG(string url, IEnumerable<CookieParam> cookies, ViewPortOptions viewport, ScreenshotOptions options, RevisionInfo revision) {149 LaunchOptions launchOptions = new LaunchOptions() {150 ExecutablePath = revision.ExecutablePath,151 Args = BrowserArgs,152 Headless = true,153 DefaultViewport = viewport,154 Timeout = 0155 };156 browser = await Puppeteer.LaunchAsync(launchOptions);157 try {158 var page = await browser.NewPageAsync();159 try {160 NavigationOptions navigationOptions = new NavigationOptions() {161 Timeout = 0162 };163 string originalUserAgent = await browser.GetUserAgentAsync();164 await page.SetUserAgentAsync($"{originalUserAgent} {USER_AGENT_SUFFIX}");165 if (cookies.Any()) {166 await page.SetCookieAsync(cookies.ToArray());167 }168 await page.GoToAsync(url, navigationOptions);169 return await page.ScreenshotDataAsync(options);170 } finally {171 await Cleanup(page);172 }173 } finally {174 Cleanup(browser);175 }176 }177 public bool UserAgentMatches(string userAgent) {...

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ChromePersistentClient.cs

Source:ChromePersistentClient.cs Github

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...67 page.WaitForNavigationAsync(n).Wait();68 }69 public IEnumerable<KeyValuePair<string, string>> PagesContent()70 {71 //var userAgent = this.browser.GetUserAgentAsync().Result;72 //var version = this.browser.GetVersionAsync().Result;73 //var last = this.browser.Targets().ToList().Last().PageAsync().Result;74 var pages = this.browser.PagesAsync().Result;75 foreach (var item in pages)76 {77 yield return new KeyValuePair<string, string>(item.Url, item.GetContentAsync().Result);78 }79 }80 public async Task<Newtonsoft.Json.Linq.JToken> ListCookiesAsync()81 {82 var cookies = await page.GetCookiesAsync(url);83 var obj = cookies.Select(s => new84 {85 Domain = s.Domain,...

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PuppeteerSharpBrowserAdapter.cs

Source:PuppeteerSharpBrowserAdapter.cs Github

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...69 // }70 71 _browser.Dispose();72 }73 public Task<string> GetUserAgentAsync() => _browser.GetUserAgentAsync();74 public IEnumerable<IPageAdapter> GetPageAdapters() => _pageAdapters;75 }76}...

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VkBrwCommunity.cs

Source:VkBrwCommunity.cs Github

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...41 Height = 768,42 Width = 102443 });44 string ver = await browser.GetVersionAsync();45 string userAgent = await browser.GetUserAgentAsync();46 await communityPage.SetUserAgentAsync("Mozilla / 5.0(Windows NT 10.0; Win64; x64) AppleWebKit / 537.36(KHTML, like Gecko) Chrome / 74.0.3723.0 Safari / 537.36");47 48 await communityPage.GoToAsync(CommunityUrl);49 ElementHandle followersLoaded = await communityPage.WaitForSelectorAsync("#public_followers");50 }51 }52}...

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BrowserAdapterTests.cs

Source:BrowserAdapterTests.cs Github

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...12 [TestMethod]13 public async Task Returns_String_UserAgent()14 {15 using var adapter = new PuppeteerSharpBrowserAdapter(1);16 var result = await adapter.GetUserAgentAsync();17 Assert.IsNotNull(result);18 Assert.AreNotEqual(0, result.Length);19 }20 [TestMethod]21 public void Returns_PageAdapterList_Equal_In_Length_To_Count_Parameter()22 {23 const int PAGE_COUNT = 2;24 25 using var adapter = new PuppeteerSharpBrowserAdapter(PAGE_COUNT);26 var result = adapter.GetPageAdapters();27 28 Assert.AreEqual(PAGE_COUNT, result.Count());29 }30 [TestMethod]...

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WebBrowser.cs

Source:WebBrowser.cs Github

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...18 IWebPage page = new WebPage(await _browser.NewPageAsync());19 20 return page;21 }22 public async Task<string> GetUserAgentAsync()23 {24 return await _browser.GetUserAgentAsync();25 }26 }27}...

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AnonymizeUaPlugin.cs

Source:AnonymizeUaPlugin.cs Github

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...15 _customAction = uaAction;16 }17 public override async Task OnPageCreated(Page page)18 {19 var ua = await page.Browser.GetUserAgentAsync();20 ua = ua.Replace("HeadlessChrome", "Chrome");21 var regex = new Regex(@"/\(([^)]+)\)/");22 ua = regex.Replace(ua, "(Windows NT 10.0; Win64; x64)");23 if (_customAction != null)24 ua = _customAction(ua);25 await page.SetUserAgentAsync(ua);26 }27 }28}...

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UserAgentTests.cs

Source:UserAgentTests.cs Github

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...11 }12 [Fact]13 public async Task ShouldIncludeWebKit()14 {15 var userAgent = await Browser.GetUserAgentAsync();16 Assert.NotEmpty(userAgent);17 Assert.Contains("WebKit", userAgent);18 }19 }20}...

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GetUserAgentAsync

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 {11 }12 });13 var page = await browser.NewPageAsync();14 var userAgent = await page.EvaluateExpressionAsync<string>("navigator.userAgent");15 Console.WriteLine(userAgent);16 await browser.CloseAsync();17 }18 }19}

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GetUserAgentAsync

Using AI Code Generation

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1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3 Args = new string[] { "--no-sandbox" }4});5var page = await browser.NewPageAsync();6var userAgent = await page.EvaluateFunctionAsync<string>("() => navigator.userAgent");7Console.WriteLine(userAgent);8await browser.CloseAsync();9Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/80.0.3987.0 Safari/537.3610public Task SetUserAgentAsync(string userAgent);11var browser = await Puppeteer.LaunchAsync(new LaunchOptions12{13 Args = new string[] { "--no-sandbox" }14});15var page = await browser.NewPageAsync();16await page.SetUserAgentAsync("Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/80.0.3987.0 Safari/537.36");17var userAgent = await page.EvaluateFunctionAsync<string>("() => navigator.userAgent");18Console.WriteLine(userAgent);19await browser.CloseAsync();20Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/80.0.3987.0 Safari/537.36

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GetUserAgentAsync

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 Args = new string[] { "--start-maximized" }11 });12 var page = await browser.NewPageAsync();13 var userAgent = await browser.GetUserAgentAsync();14 Console.WriteLine(userAgent);15 await browser.CloseAsync();16 }17 }18}19Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36

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GetUserAgentAsync

Using AI Code Generation

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1var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });2var page = await browser.NewPageAsync();3await page.WaitForSelectorAsync("#detected_value");4var userAgent = await page.EvaluateExpressionAsync<string>("document.querySelector('#detected_value').textContent");5Console.WriteLine(userAgent);6await browser.CloseAsync();7PuppeteerSharp.Browser.GetUserAgentAsync() method8var userAgent = await browser.GetUserAgentAsync();9using System;10using System.Threading.Tasks;11using PuppeteerSharp;12{13 {14 static async Task Main(string[] args)15 {16 var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });17 var page = await browser.NewPageAsync();18 await page.WaitForSelectorAsync("#detected_value");19 var userAgent = await browser.GetUserAgentAsync();20 Console.WriteLine(userAgent);21 await browser.CloseAsync();22 }23 }24}25Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/91.0.4472.0 Safari/537.36

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GetUserAgentAsync

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9 var browser = await Puppeteer.LaunchAsync(new LaunchOptions10 {11 });12 var page = await browser.NewPageAsync();13 string userAgent = await browser.GetUserAgentAsync();14 Console.WriteLine(userAgent);15 await browser.CloseAsync();16 }17 }18}19Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/78.0.3882.0 Safari/537.3620using System;21using System.Threading.Tasks;22using PuppeteerSharp;23{24 {25 static async Task Main(string[] args)26 {27 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);28 var browser = await Puppeteer.LaunchAsync(new LaunchOptions29 {30 });31 var page = await browser.NewPageAsync();32 string userAgent = await page.GetUserAgentAsync();33 Console.WriteLine(userAgent);34 await browser.CloseAsync();35 }36 }37}38Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/78.0.3882.0 Safari/537.3639using System;40using System.Threading.Tasks;41using PuppeteerSharp;42{43 {44 static async Task Main(string[] args)45 {46 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);47 var browser = await Puppeteer.LaunchAsync(new LaunchOptions48 {49 });50 var page = await browser.NewPageAsync();51 string userAgent = await page.MainFrame.GetUserAgentAsync();52 Console.WriteLine(userAgent);53 await browser.CloseAsync();54 }55 }56}57Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like

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GetUserAgentAsync

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3{4 {5 static async Task Main(string[] args)6 {7 var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });8 var page = await browser.NewPageAsync();9 var userAgent = await browser.GetUserAgentAsync();10 Console.WriteLine(userAgent);11 await browser.CloseAsync();12 }13 }14}15Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/77.0.3833.0 Saf

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