private void SearchFromSodu(SearchResult searchResult,
HttpContentDownloader downloader,
Uri searchUri)
{
downloader.Download(searchUri,
ar =>
{
try
{
//At this step, we can get the index page in the search engine
var state = (RequestState)ar.AsyncState;
state.stopTimer = true;
var response = (HttpWebResponse)state.Request.EndGetResponse(ar);
response.GetResponseStream();
var parser = new SoduSearchResultPageParser();
SearchBookResult =
parser.Parse(response.GetResponseStream(), searchResult) as
List<SearchResult>;
ProgressIndicatorHelper.StopProgressIndicator();
}
catch (WebException e)
{
if (e.Status == WebExceptionStatus.RequestCanceled)
{
throw new TimeoutException("连接sodu.org超时，可尝试更换搜书引擎");
}
}
});
}
private void ProcessBookElement(HtmlNode trElement, List<SearchResult> SearchResultUrlList)
{
if (trElement.Name != "tr") return;
var item = new SearchResult();
var tdElements = trElement.DescendantNodes().Where(n => n.Name == "td").ToArray();
if (tdElements.Length == 5)
{
//Parse Book name and index page url
var aElement = tdElements[1].DescendantNodes().Where(n => n.Name == "a").First();
if (aElement != null)
{
item.IndexPageUri = new Uri("http://www.xiaoelang.com" + aElement.Attributes["href"].Value, UriKind.Absolute);
item.BookName = aElement.InnerText.Trim();
item.Book = new Book();
item.Book.Name = item.BookName;
}
//Parse last update chapter name
aElement = tdElements[2].DescendantNodes().Where(n => n.Name == "a").First();
if (aElement != null)
{
item.LastUpdateChapterName = aElement.InnerText.Trim();
}
//Parse last update time
//<td class="xt" align="center" valign="middle" width="78">2011-08-26</td>
}
SearchResultUrlList.Add(item);
}
public void Search(string keyword)
{
var searchEngine = GetSearchEngine();
var searchUri = new Uri(searchEngine.SearchUri, UriKind.Absolute);
if (searchEngine.Type == SearchEngineType.Sodu)
{
searchUri = new Uri(String.Format(searchEngine.SearchUri, HttpUtility.UrlEncode(keyword)), UriKind.Absolute);
}
var downloader = new HttpContentDownloader();
DownloaderList.Add(downloader);
var searchResult = new SearchResult();
if (searchEngine.Type == SearchEngineType.Sodu)
{
SearchFromSodu(searchResult, downloader, searchUri);
}
if (searchEngine.Type == SearchEngineType.Xiaoelang)
{
SearchFromXiaoelang(keyword, searchResult, downloader, searchUri);
}
}
private void SearchFromXiaoelang(string keyword,
SearchResult searchResult,
HttpContentDownloader downloader,
Uri searchUri)
{
downloader.DownloadPost(searchUri, "keyword", keyword,
ar =>
{
try
{
//At this step, we can get the index page in the search engine
var state = (RequestState)ar.AsyncState;
state.stopTimer = true;
var response = (HttpWebResponse)state.Request.EndGetResponse(ar);
response.GetResponseStream();
var parser = new XiaoelangSearchResultPageParser();
SearchBookResult =
parser.Parse(response.GetResponseStream(), searchResult) as List<SearchResult>;
}
catch (WebException e)
{
if (e.Status == WebExceptionStatus.RequestCanceled)
throw new TimeoutException("连接xiaoelang.com超时，请尝试更换搜书引擎");
}
});
}
public void GetBookSiteLink(SearchResult searchResult)
{
var searchEngine = GetSearchEngine();
Uri soduBookLatestUpdatePage = searchResult.IndexPageUri;
var downloader = new HttpContentDownloader();
DownloaderList.Add(downloader);
downloader.Download(soduBookLatestUpdatePage,
ar =>
{
//At this step, we can get the index page in the search engine
var state = (RequestState)ar.AsyncState;
var response = (HttpWebResponse)state.Request.EndGetResponse(ar);
response.GetResponseStream();
if (searchEngine.Type == SearchEngineType.Sodu)
{
var parser = new SoduBookLastestUpdatePageParser();
BookList = parser.Parse(response.GetResponseStream(), searchResult.Book) as List<Book>;
}
if (searchEngine.Type == SearchEngineType.Xiaoelang)
{
var parser = new XiaoelangBookLastestUpdatePageParser();
BookList = parser.Parse(response.GetResponseStream(), searchResult.Book) as List<Book>;
}
});
}