internal DiscoveryProcessor(ApplicationSettings applicationSettings, Crawler <TArachnodeDAO> crawler, CrawlRequestManager <TArachnodeDAO> crawlRequestManager)
{
_applicationSettings = applicationSettings;
_crawler = crawler;
_crawlRequestManager = crawlRequestManager;
_arachnodeDAO = (TArachnodeDAO)Activator.CreateInstance(typeof(TArachnodeDAO), _applicationSettings.ConnectionString);
_arachnodeDAO.ApplicationSettings = _applicationSettings;
}
/// <summary>
/// Processes a FilesRow after crawling.
/// </summary>
/// <param name = "filesRow">The files row.</param>
/// <param name="webClient"></param>
/// <param name="actionManager"></param>
/// <param name="consoleManager"></param>
/// <param name="discoveryManager"></param>
/// <param name = "fileManager">The file manager.</param>
/// <param name = "fileManager">The file manager.</param>
/// <param name="memoryManager"></param>
/// <param name="ruleManager"></param>
/// <param name = "arachnodeDAO">The arachnode DAO.</param>
/// <param name = "imageManager">The image manager.</param>
public static void ProcessFile(ApplicationSettings applicationSettings, WebSettings webSettings, Crawler <TArachnodeDAO> crawler, ArachnodeDataSet.FilesRow filesRow, WebClient <TArachnodeDAO> webClient, Cache <TArachnodeDAO> cache, ActionManager <TArachnodeDAO> actionManager, ConsoleManager <TArachnodeDAO> consoleManager, CrawlerPeerManager <TArachnodeDAO> crawlerPeerManager, DiscoveryManager <TArachnodeDAO> discoveryManager, FileManager <TArachnodeDAO> fileManager, MemoryManager <TArachnodeDAO> memoryManager, RuleManager <TArachnodeDAO> ruleManager, IArachnodeDAO arachnodeDAO)
{
CacheManager <TArachnodeDAO> cacheManager = new CacheManager <TArachnodeDAO>(applicationSettings, webSettings);
CookieManager cookieManager = new CookieManager();;
CrawlRequestManager <TArachnodeDAO> crawlRequestManager = new CrawlRequestManager <TArachnodeDAO>(applicationSettings, webSettings, cache, consoleManager, discoveryManager);
DataTypeManager <TArachnodeDAO> dataTypeManager = new DataTypeManager <TArachnodeDAO>(applicationSettings, webSettings);
EncodingManager <TArachnodeDAO> encodingManager = new EncodingManager <TArachnodeDAO>(applicationSettings, webSettings);
PolitenessManager <TArachnodeDAO> politenessManager = new PolitenessManager <TArachnodeDAO>(applicationSettings, webSettings, cache);
ProxyManager <TArachnodeDAO> proxyManager = new ProxyManager <TArachnodeDAO>(applicationSettings, webSettings, consoleManager);
HtmlManager <TArachnodeDAO> htmlManager = new HtmlManager <TArachnodeDAO>(applicationSettings, webSettings, discoveryManager);
Crawl <TArachnodeDAO> crawl = new Crawl <TArachnodeDAO>(applicationSettings, webSettings, crawler, actionManager, consoleManager, cookieManager, crawlRequestManager, dataTypeManager, discoveryManager, encodingManager, htmlManager, politenessManager, proxyManager, ruleManager, true);
//create a CrawlRequest as this is what the internals of SiteCrawler.dll expect to operate on...
CrawlRequest <TArachnodeDAO> crawlRequest = new CrawlRequest <TArachnodeDAO>(new Discovery <TArachnodeDAO>(filesRow.AbsoluteUri), 1, UriClassificationType.Host, UriClassificationType.Host, 0, RenderType.None, RenderType.None);
crawlRequest.Crawl = crawl;
crawlRequest.Discovery.DiscoveryType = DiscoveryType.File;
crawlRequest.Discovery.ID = filesRow.ID;
crawlRequest.Data = filesRow.Source;
crawlRequest.ProcessData = true;
crawlRequest.WebClient = webClient;
crawlRequest.WebClient.HttpWebResponse.Headers.Clear();
//parse the ResponseHeaders from the FilesRow.ResponseHeaders string...
foreach (string responseHeader in filesRow.ResponseHeaders.Split("\r\n".ToCharArray(), StringSplitOptions.RemoveEmptyEntries))
{
string[] responseHeaderSplit = responseHeader.Split(":".ToCharArray());
string name = responseHeaderSplit[0];
string value = UserDefinedFunctions.ExtractResponseHeader(filesRow.ResponseHeaders, name, true).Value;
crawlRequest.WebClient.HttpWebResponse.Headers.Add(name, value);
}
//refresh the DataTypes in the DataTypeManager... (if necessary)...
if (dataTypeManager.AllowedDataTypes.Count == 0)
{
dataTypeManager.RefreshDataTypes();
}
crawlRequest.DataType = dataTypeManager.DetermineDataType(crawlRequest);
if (applicationSettings.InsertFiles)
{
crawlRequest.Discovery.ID = arachnodeDAO.InsertFile(crawlRequest.Parent.Uri.AbsoluteUri, crawlRequest.Discovery.Uri.AbsoluteUri, crawlRequest.WebClient.HttpWebResponse.Headers.ToString(), applicationSettings.InsertFileSource ? crawlRequest.Data : new byte[] { }, crawlRequest.DataType.FullTextIndexType, applicationSettings.ClassifyAbsoluteUris);
}
crawlRequest.ManagedDiscovery = fileManager.ManageFile(crawlRequest, crawlRequest.Discovery.ID.Value, crawlRequest.Discovery.Uri.AbsoluteUri, crawlRequest.Data, crawlRequest.DataType.FullTextIndexType, applicationSettings.ExtractFileMetaData, applicationSettings.InsertFileMetaData, applicationSettings.SaveDiscoveredFilesToDisk);
actionManager.PerformCrawlActions(crawlRequest, CrawlActionType.PostRequest, arachnodeDAO);
discoveryManager.CloseAndDisposeManagedDiscovery(crawlRequest, arachnodeDAO);
}
/// <summary>
/// Initializes a new instance of the <see cref = "Crawl" /> class.
/// </summary>
/// <param name = "crawler">The crawler.</param>
/// <param name="actionManager"></param>
/// <param name="crawlRequestManager"></param>
/// <param name="discoveryManager"></param>
/// <param name="htmlManager"></param>
/// <param name="politenessManager"></param>
/// <param name="ruleManager"></param>
/// <param name = "processData">if set to <c>true</c> [process data].</param>
public Crawl(ApplicationSettings applicationSettings, WebSettings webSettings, Crawler <TArachnodeDAO> crawler, ActionManager <TArachnodeDAO> actionManager, ConsoleManager <TArachnodeDAO> consoleManager, CookieManager cookieManager, CrawlRequestManager <TArachnodeDAO> crawlRequestManager, DataTypeManager <TArachnodeDAO> dataTypeManager, DiscoveryManager <TArachnodeDAO> discoveryManager, EncodingManager <TArachnodeDAO> encodingManager, HtmlManager <TArachnodeDAO> htmlManager, PolitenessManager <TArachnodeDAO> politenessManager, ProxyManager <TArachnodeDAO> proxyManager, RuleManager <TArachnodeDAO> ruleManager, bool processData)
{
_applicationSettings = applicationSettings;
_webSettings = webSettings;
UncrawledCrawlRequests = new PriorityQueue <CrawlRequest <TArachnodeDAO> >();
UnassignedDiscoveries = new HashSet <string>();
_crawler = crawler;
_crawlInfo.MaximumCrawlDepth = 1;
_actionManager = actionManager;
_consoleManager = consoleManager;
_cookieManager = cookieManager;
_crawlRequestManager = crawlRequestManager;
_dataTypeManager = dataTypeManager;
_discoveryManager = discoveryManager;
_encodingManager = encodingManager;
_htmlManager = htmlManager;
_politenessManager = politenessManager;
_proxyManager = proxyManager;
_ruleManager = ruleManager;
_processData = processData;
_arachnodeDAO = (TArachnodeDAO)Activator.CreateInstance(typeof(TArachnodeDAO), _applicationSettings.ConnectionString, _applicationSettings, _webSettings, false, false);
_arachnodeDAO.ApplicationSettings = applicationSettings;
//_arachnodeDAO.OpenCommandConnections();
_dataManager = new DataManager <TArachnodeDAO>(_applicationSettings, _webSettings, _actionManager, _dataTypeManager, _discoveryManager, _ruleManager, _arachnodeDAO);
_fileManager = new FileManager <TArachnodeDAO>(_applicationSettings, _webSettings, _discoveryManager, _arachnodeDAO);
_imageManager = new ImageManager <TArachnodeDAO>(_applicationSettings, _webSettings, _discoveryManager, _arachnodeDAO);
_webClient = new WebClient <TArachnodeDAO>(_applicationSettings, _webSettings, _consoleManager, _cookieManager, _proxyManager);
_webPageManager = new WebPageManager <TArachnodeDAO>(_applicationSettings, _webSettings, _discoveryManager, _htmlManager, _arachnodeDAO);
}
/// <summary>
/// Initializes a new instance of the <see cref = "Crawler" /> class.
/// </summary>
public Crawler(ApplicationSettings applicationSettings, WebSettings webSettings, CrawlMode crawlMode, List <CrawlerPeer> crawlerPeers, List <DatabasePeer> databasePeers, bool enableRenderers)
{
Guid = Guid.NewGuid();
try
{
_applicationSettings = applicationSettings;
_webSettings = webSettings;
_arachnodeDAO = (TArachnodeDAO)Activator.CreateInstance(typeof(TArachnodeDAO), _applicationSettings.ConnectionString, _applicationSettings, _webSettings, true, true);
_applicationSettings = _arachnodeDAO.ApplicationSettings;
_consoleManager = new ConsoleManager <TArachnodeDAO>(_applicationSettings, _webSettings);
_consoleManager.OutputString("arachnode.net " + Assembly.GetExecutingAssembly().GetName().Version, ConsoleColor.Green, ConsoleColor.Gray);
_actionManager = new ActionManager <TArachnodeDAO>(_applicationSettings, _webSettings, _consoleManager);
_ruleManager = new RuleManager <TArachnodeDAO>(_applicationSettings, _webSettings, _consoleManager);
_memoryManager = new MemoryManager <TArachnodeDAO>(_applicationSettings, _webSettings);
_cacheManager = new CacheManager <TArachnodeDAO>(_applicationSettings, _webSettings);
_cookieManager = new CookieManager();
_cacheManager = new CacheManager <TArachnodeDAO>(_applicationSettings, _webSettings);
CrawlerPeers = crawlerPeers;
DatabasePeers = databasePeers;
_crawlerPeerManager = new CrawlerPeerManager <TArachnodeDAO>(_applicationSettings, _webSettings, CrawlerPeers, (TArachnodeDAO)Activator.CreateInstance(typeof(TArachnodeDAO), _applicationSettings.ConnectionString, _applicationSettings, _webSettings, true, true));
_databasePeerManager = new DatabasePeerManager <TArachnodeDAO>(_applicationSettings, _webSettings, DatabasePeers);
_cache = new Cache <TArachnodeDAO>(_applicationSettings, _webSettings, this, _actionManager, _cacheManager, _crawlerPeerManager, _memoryManager, _ruleManager);
_dataTypeManager = new DataTypeManager <TArachnodeDAO>(_applicationSettings, _webSettings);
_discoveryManager = new DiscoveryManager <TArachnodeDAO>(_applicationSettings, _webSettings, _cache, _actionManager, _cacheManager, _memoryManager, _ruleManager);
_crawlRequestManager = new CrawlRequestManager <TArachnodeDAO>(_applicationSettings, _webSettings, _cache, _consoleManager, _discoveryManager);
_encodingManager = new EncodingManager <TArachnodeDAO>(_applicationSettings, _webSettings);
_htmlManager = new HtmlManager <TArachnodeDAO>(_applicationSettings, _webSettings, _discoveryManager);
_politenessManager = new PolitenessManager <TArachnodeDAO>(_applicationSettings, _webSettings, _cache);
_proxyManager = new ProxyManager <TArachnodeDAO>(_applicationSettings, _webSettings, _consoleManager);
_reportingManager = new ReportingManager <TArachnodeDAO>(_applicationSettings, _webSettings, _consoleManager);
//create required directories...
if (!Directory.Exists(_applicationSettings.ConsoleOutputLogsDirectory))
{
Directory.CreateDirectory(_applicationSettings.ConsoleOutputLogsDirectory);
}
if (!Directory.Exists(_applicationSettings.DownloadedFilesDirectory))
{
Directory.CreateDirectory(_applicationSettings.DownloadedFilesDirectory);
}
if (!Directory.Exists(_applicationSettings.DownloadedImagesDirectory))
{
Directory.CreateDirectory(_applicationSettings.DownloadedImagesDirectory);
}
if (!Directory.Exists(_applicationSettings.DownloadedWebPagesDirectory))
{
Directory.CreateDirectory(_applicationSettings.DownloadedWebPagesDirectory);
}
QueryProcessor = new QueryProcessor <TArachnodeDAO>();
_consoleManager.OutputString("Crawler: Initializing Configuration/Database Connection.", ConsoleColor.White, ConsoleColor.Gray);
LoadCrawlActions(_arachnodeDAO);
LoadCrawlRules(_arachnodeDAO);
AreRenderersEnabled = enableRenderers;
Engine = new Engine <TArachnodeDAO>(_applicationSettings, _webSettings, this, _cache, _actionManager, _cacheManager, _consoleManager, _cookieManager, _crawlRequestManager, _dataTypeManager, _discoveryManager, _encodingManager, _htmlManager, _memoryManager, _politenessManager, _proxyManager, _reportingManager, _ruleManager, enableRenderers, (TArachnodeDAO)Activator.CreateInstance(typeof(TArachnodeDAO), _applicationSettings.ConnectionString, _applicationSettings, _webSettings, true, true));
CrawlMode = crawlMode;
/**/
if (CrawlerPeerManager != null && CrawlerPeerManager.CrawlerPeers != null && CrawlerPeerManager.CrawlerPeers.Count != 0)
{
ConsoleManager.OutputString("Crawler: Starting CrawlerPeerManager Server", ConsoleColor.White, ConsoleColor.Gray);
CrawlerPeerManager.StartServer(this, _arachnodeDAO);
_crawlerPeerManager.SendStatusMessageToCrawlerPeers(_arachnodeDAO);
}
/**/
if (Debugger.IsAttached)
{
_consoleManager.OutputString("Debugger: Attached - Expect Performance Degradation.", ConsoleColor.Yellow, ConsoleColor.Gray);
}
//update all core/components/managers with the updated ApplicationSettings...
#if DEMO
Engine.CrawlRequestCompleted += Engine_CrawlRequestCompleted;
_stopwatch.Start();
#endif
}
catch (InvalidConfigurationException invalidConfigurationException)
{
ProcessException(invalidConfigurationException);
throw new InvalidConfigurationException(invalidConfigurationException.ApplicationSettings, invalidConfigurationException.WebSettings, invalidConfigurationException.Message, InvalidConfigurationExceptionSeverity.Error);
}
catch (Exception exception)
{
ProcessException(exception);
throw new Exception(exception.Message, exception);
}
}
/// <summary>
/// Processes a WebPagesRow after crawling.
/// </summary>
/// <param name = "webPagesRow">The web pages row.</param>
/// <param name="webClient"></param>
/// <param name="actionManager"></param>
/// <param name="consoleManager"></param>
/// <param name="discoveryManager"></param>
/// <param name="memoryManager"></param>
/// <param name="ruleManager"></param>
/// <param name = "webPageManager">The web page manager.</param>
/// <param name = "arachnodeDAO">The arachnode DAO.</param>
/// <param name = "fileManager">The file manager.</param>
/// <param name = "imageManager">The image manager.</param>
public static void ProcessWebPage(ApplicationSettings applicationSettings, WebSettings webSettings, Crawler <TArachnodeDAO> crawler, ArachnodeDataSet.WebPagesRow webPagesRow, WebClient <TArachnodeDAO> webClient, Cache <TArachnodeDAO> cache, ActionManager <TArachnodeDAO> actionManager, ConsoleManager <TArachnodeDAO> consoleManager, CrawlerPeerManager <TArachnodeDAO> crawlerPeerManager, DiscoveryManager <TArachnodeDAO> discoveryManager, MemoryManager <TArachnodeDAO> memoryManager, RuleManager <TArachnodeDAO> ruleManager, WebPageManager <TArachnodeDAO> webPageManager, IArachnodeDAO arachnodeDAO)
{
CacheManager <TArachnodeDAO> cacheManager = new CacheManager <TArachnodeDAO>(applicationSettings, webSettings);
CookieManager cookieManager = new CookieManager();
CrawlRequestManager <TArachnodeDAO> crawlRequestManager = new CrawlRequestManager <TArachnodeDAO>(applicationSettings, webSettings, cache, consoleManager, discoveryManager);
DataTypeManager <TArachnodeDAO> dataTypeManager = new DataTypeManager <TArachnodeDAO>(applicationSettings, webSettings);
EncodingManager <TArachnodeDAO> encodingManager = new EncodingManager <TArachnodeDAO>(applicationSettings, webSettings);
PolitenessManager <TArachnodeDAO> politenessManager = new PolitenessManager <TArachnodeDAO>(applicationSettings, webSettings, cache);
ProxyManager <TArachnodeDAO> proxyManager = new ProxyManager <TArachnodeDAO>(applicationSettings, webSettings, consoleManager);
HtmlManager <TArachnodeDAO> htmlManager = new HtmlManager <TArachnodeDAO>(applicationSettings, webSettings, discoveryManager);
Crawl <TArachnodeDAO> crawl = new Crawl <TArachnodeDAO>(applicationSettings, webSettings, crawler, actionManager, consoleManager, cookieManager, crawlRequestManager, dataTypeManager, discoveryManager, encodingManager, htmlManager, politenessManager, proxyManager, ruleManager, true);
//create a CrawlRequest as this is what the internals of SiteCrawler.dll expect to operate on...
CrawlRequest <TArachnodeDAO> crawlRequest = new CrawlRequest <TArachnodeDAO>(new Discovery <TArachnodeDAO>(webPagesRow.AbsoluteUri), webPagesRow.CrawlDepth, UriClassificationType.Host, UriClassificationType.Host, 0, RenderType.None, RenderType.None);
crawlRequest.Crawl = crawl;
crawlRequest.Discovery.DiscoveryType = DiscoveryType.WebPage;
crawlRequest.Discovery.ID = webPagesRow.ID;
crawlRequest.Data = webPagesRow.Source;
crawlRequest.CurrentDepth = webPagesRow.CrawlDepth;
crawlRequest.Encoding = Encoding.GetEncoding(webPagesRow.CodePage);
crawlRequest.ProcessData = true;
crawlRequest.WebClient = webClient;
crawlRequest.WebClient.HttpWebResponse.Headers.Clear();
//parse the ResponseHeaders from the WebPagesRow.ResponseHeaders string...
foreach (string responseHeader in webPagesRow.ResponseHeaders.Split("\r\n".ToCharArray(), StringSplitOptions.RemoveEmptyEntries))
{
string[] responseHeaderSplit = responseHeader.Split(":".ToCharArray());
string name = responseHeaderSplit[0];
string value = UserDefinedFunctions.ExtractResponseHeader(webPagesRow.ResponseHeaders, name, true).Value;
crawlRequest.WebClient.HttpWebResponse.Headers.Add(name, value);
}
//refresh the DataTypes in the DataTypeManager... (if necessary)...
if (dataTypeManager.AllowedDataTypes.Count == 0)
{
dataTypeManager.RefreshDataTypes();
}
crawlRequest.DataType = dataTypeManager.DetermineDataType(crawlRequest);
//now, process the bytes...
encodingManager.ProcessCrawlRequest(crawlRequest, arachnodeDAO);
if (applicationSettings.InsertWebPages)
{
crawlRequest.Discovery.ID = arachnodeDAO.InsertWebPage(crawlRequest.Discovery.Uri.AbsoluteUri, crawlRequest.WebClient.HttpWebResponse.Headers.ToString(), applicationSettings.InsertWebPageSource ? crawlRequest.Data : new byte[] { }, crawlRequest.Encoding.CodePage, crawlRequest.DataType.FullTextIndexType, crawlRequest.CurrentDepth, applicationSettings.ClassifyAbsoluteUris);
}
crawlRequest.ManagedDiscovery = webPageManager.ManageWebPage(crawlRequest.Discovery.ID.Value, crawlRequest.Discovery.Uri.AbsoluteUri, crawlRequest.Data, crawlRequest.Encoding, crawlRequest.DataType.FullTextIndexType, applicationSettings.ExtractWebPageMetaData, applicationSettings.InsertWebPageMetaData, applicationSettings.SaveDiscoveredWebPagesToDisk);
//assigning FileAndImageDiscoveries isn't applicable because Files and Images need to be crawled to be properly classified... without classification we don't know whether they belong in dbo.Files or dbo.Images...
crawlRequestManager.ProcessEmailAddresses(crawlRequest, arachnodeDAO);
crawlRequestManager.ProcessHyperLinks(crawlRequest, arachnodeDAO);
actionManager.PerformCrawlActions(crawlRequest, CrawlActionType.PostRequest, arachnodeDAO);
discoveryManager.CloseAndDisposeManagedDiscovery(crawlRequest, arachnodeDAO);
}
