|
| 1 | +using System; |
| 2 | +using System.Collections.Specialized; |
| 3 | +using System.Collections.Generic; |
| 4 | +using System.Linq; |
| 5 | +using System.Net.Http; |
| 6 | +using System.Net.Http.Headers; |
| 7 | +using System.Threading; |
| 8 | +using System.Threading.Tasks; |
| 9 | +using System.Text; |
| 10 | +using Microsoft.Playwright; |
| 11 | +using NetInteractor.Config; |
| 12 | + |
| 13 | +namespace NetInteractor.WebAccessors |
| 14 | +{ |
| 15 | + public class PlaywrightWebAccessor : IWebAccessor, IAsyncDisposable |
| 16 | + { |
| 17 | + private IPlaywright _playwright; |
| 18 | + private IBrowser _browser; |
| 19 | + private readonly SemaphoreSlim _browserLock = new SemaphoreSlim(1, 1); |
| 20 | + private readonly BrowserTypeLaunchOptions _launchOptions; |
| 21 | + private bool _disposed; |
| 22 | + |
| 23 | + public PlaywrightWebAccessor(BrowserTypeLaunchOptions launchOptions = null) |
| 24 | + { |
| 25 | + _launchOptions = launchOptions ?? new BrowserTypeLaunchOptions |
| 26 | + { |
| 27 | + Headless = true, |
| 28 | + Args = new[] { "--no-sandbox", "--disable-setuid-sandbox" } |
| 29 | + }; |
| 30 | + } |
| 31 | + |
| 32 | + private async Task<IBrowser> GetBrowserAsync() |
| 33 | + { |
| 34 | + if (_browser == null) |
| 35 | + { |
| 36 | + await _browserLock.WaitAsync(); |
| 37 | + try |
| 38 | + { |
| 39 | + if (_browser == null) |
| 40 | + { |
| 41 | + _playwright = await Microsoft.Playwright.Playwright.CreateAsync(); |
| 42 | + _browser = await _playwright.Chromium.LaunchAsync(_launchOptions); |
| 43 | + } |
| 44 | + } |
| 45 | + finally |
| 46 | + { |
| 47 | + _browserLock.Release(); |
| 48 | + } |
| 49 | + } |
| 50 | + return _browser; |
| 51 | + } |
| 52 | + |
| 53 | + public async Task<ResponseInfo> GetAsync(string url, InteractActionConfig config = null) |
| 54 | + { |
| 55 | + var browser = await GetBrowserAsync(); |
| 56 | + var page = await browser.NewPageAsync(); |
| 57 | + |
| 58 | + try |
| 59 | + { |
| 60 | + var response = await page.GotoAsync(url, new PageGotoOptions |
| 61 | + { |
| 62 | + WaitUntil = WaitUntilState.NetworkIdle |
| 63 | + }); |
| 64 | + |
| 65 | + var loadDelayStr = config?.Options?.FirstOrDefault(attr => attr.Name == "loadDelay")?.Value; |
| 66 | + if (!string.IsNullOrEmpty(loadDelayStr) && int.TryParse(loadDelayStr, out var loadDelay)) |
| 67 | + { |
| 68 | + var delayTask = page.WaitForTimeoutAsync(loadDelay); |
| 69 | + var navigationTask = page.WaitForNavigationAsync(new PageWaitForNavigationOptions |
| 70 | + { |
| 71 | + WaitUntil = WaitUntilState.NetworkIdle |
| 72 | + }); |
| 73 | + |
| 74 | + var completedTask = await Task.WhenAny(delayTask, navigationTask); |
| 75 | + if (completedTask == navigationTask) |
| 76 | + { |
| 77 | + try |
| 78 | + { |
| 79 | + response = await navigationTask; |
| 80 | + } |
| 81 | + catch (PlaywrightException) |
| 82 | + { |
| 83 | + } |
| 84 | + } |
| 85 | + } |
| 86 | + |
| 87 | + return await GetResultFromResponse(page, response); |
| 88 | + } |
| 89 | + finally |
| 90 | + { |
| 91 | + await page.CloseAsync(); |
| 92 | + } |
| 93 | + } |
| 94 | + |
| 95 | + public async Task<ResponseInfo> PostAsync(string url, NameValueCollection formValues, InteractActionConfig config = null) |
| 96 | + { |
| 97 | + var browser = await GetBrowserAsync(); |
| 98 | + var page = await browser.NewPageAsync(); |
| 99 | + |
| 100 | + try |
| 101 | + { |
| 102 | + var formData = string.Join("&", formValues.Keys.OfType<string>() |
| 103 | + .Select(k => k + "=" + Uri.EscapeDataString(formValues[k] ?? string.Empty))); |
| 104 | + |
| 105 | + await page.RouteAsync("**/*", async route => |
| 106 | + { |
| 107 | + var request = route.Request; |
| 108 | + if (request.Url == url && request.Method == "GET") |
| 109 | + { |
| 110 | + await route.ContinueAsync(new RouteContinueOptions |
| 111 | + { |
| 112 | + Method = "POST", |
| 113 | + PostData = Encoding.UTF8.GetBytes(formData), |
| 114 | + Headers = request.Headers.Concat(new[] |
| 115 | + { |
| 116 | + new KeyValuePair<string, string>("Content-Type", "application/x-www-form-urlencoded") |
| 117 | + }).ToDictionary(x => x.Key, x => x.Value) |
| 118 | + }); |
| 119 | + } |
| 120 | + else |
| 121 | + { |
| 122 | + await route.ContinueAsync(); |
| 123 | + } |
| 124 | + }); |
| 125 | + |
| 126 | + var response = await page.GotoAsync(url, new PageGotoOptions |
| 127 | + { |
| 128 | + WaitUntil = WaitUntilState.NetworkIdle |
| 129 | + }); |
| 130 | + |
| 131 | + return await GetResultFromResponse(page, response); |
| 132 | + } |
| 133 | + finally |
| 134 | + { |
| 135 | + await page.CloseAsync(); |
| 136 | + } |
| 137 | + } |
| 138 | + |
| 139 | + private async Task<ResponseInfo> GetResultFromResponse(IPage page, IResponse response) |
| 140 | + { |
| 141 | + var html = await page.ContentAsync(); |
| 142 | + |
| 143 | + var mockResponse = new HttpResponseMessage(); |
| 144 | + IEnumerable<KeyValuePair<string, string>> headerPairs = response?.Headers ?? Enumerable.Empty<KeyValuePair<string, string>>(); |
| 145 | + |
| 146 | + foreach (var header in headerPairs) |
| 147 | + { |
| 148 | + try |
| 149 | + { |
| 150 | + mockResponse.Headers.TryAddWithoutValidation(header.Key, header.Value); |
| 151 | + } |
| 152 | + catch (Exception) |
| 153 | + { |
| 154 | + } |
| 155 | + } |
| 156 | + |
| 157 | + return new ResponseInfo |
| 158 | + { |
| 159 | + StatusCode = (int)(response?.Status ?? 0), |
| 160 | + StatusDescription = response?.StatusText, |
| 161 | + Html = html, |
| 162 | + Url = response?.Url, |
| 163 | + Headers = mockResponse.Headers |
| 164 | + }; |
| 165 | + } |
| 166 | + |
| 167 | + public async ValueTask DisposeAsync() |
| 168 | + { |
| 169 | + if (!_disposed) |
| 170 | + { |
| 171 | + _disposed = true; |
| 172 | + if (_browser != null) |
| 173 | + { |
| 174 | + await _browser.DisposeAsync(); |
| 175 | + } |
| 176 | + _playwright?.Dispose(); |
| 177 | + _browserLock.Dispose(); |
| 178 | + } |
| 179 | + } |
| 180 | + } |
| 181 | +} |
0 commit comments