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search.aspx.cs
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261 lines (215 loc) · 6.26 KB
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#region Using
using System;
using System.Collections.Generic;
using System.Web;
using System.Net;
using System.Xml;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Text.RegularExpressions;
using BlogEngine.Core;
#endregion
public partial class search : BlogEngine.Core.Web.Controls.BlogBasePage
{
private const int PAGE_SIZE = 20;
#region Event handlers
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
rep.ItemDataBound += new RepeaterItemEventHandler(rep_ItemDataBound);
var term = Request.QueryString["q"];
if (!String.IsNullOrWhiteSpace(term))
{
bool includeComments = (Request.QueryString["comment"] == "true");
var encodedTerm = Server.HtmlEncode(term);
Page.Title = Server.HtmlEncode(Resources.labels.searchResultsFor) + " '" + encodedTerm + "'";
h1Headline.InnerHtml = Resources.labels.searchResultsFor + " '" + encodedTerm + "'";
Uri url;
if (!Uri.TryCreate(term, UriKind.Absolute, out url))
{
List<IPublishable> list = Search.Hits(term, includeComments);
BindSearchResult(list);
}
else
{
SearchByApml(url);
}
}
else
{
Page.Title = Resources.labels.search;
h1Headline.InnerHtml = Resources.labels.search;
}
}
private void SearchByApml(Uri url)
{
List<IPublishable> list = new List<IPublishable>();
try
{
Dictionary<Uri, XmlDocument> docs = Utils.FindSemanticDocuments(url, "apml");
if (docs.Count > 0)
{
foreach (Uri key in docs.Keys)
{
list = Search.ApmlMatches(docs[key], 30);
Page.Title = "APML matches for '" + Server.HtmlEncode(key.ToString()) + "'";
break;
}
}
else
{
Page.Title = "APML matches for '" + Server.HtmlEncode(Request.QueryString["q"]) + "'";
}
h1Headline.InnerText = Page.Title;
}
catch
{
}
BindSearchResult(list);
}
/// <summary>
/// Handles the ItemDataBound event of the rep control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Web.UI.WebControls.RepeaterItemEventArgs"/> instance containing the event data.</param>
void rep_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
HtmlGenericControl control = (HtmlGenericControl)e.Item.FindControl("type");
string type = "<strong>" + Resources.labels.type + "</strong>: {0}";
string categories = "<strong>" + Resources.labels.categories + "</strong> : {0}";
string tags = "<strong>" + Resources.labels.tags + "</strong> : {0}";
string keywords = "<strong>" + Resources.labels.keywords + "</strong> : {0} ";
if (e.Item.DataItem is Comment)
{
control.InnerHtml = string.Format(type, Resources.labels.comment);
}
else if (e.Item.DataItem is Post)
{
Post post = (Post)e.Item.DataItem;
string text = string.Format(type, Resources.labels.post);
if (post.Categories.Count > 0)
{
string cat = string.Empty;
foreach (Category category in post.Categories)
{
cat += category.Title + ", ";
}
text += "<br />" + string.Format(categories, cat.Substring(0, cat.Length - 2));
}
if (post.Tags.Count > 0)
{
string t = string.Empty;
foreach (string tag in post.Tags)
{
t += tag + ", ";
}
text += "<br />" + string.Format(tags, t.Substring(0, t.Length - 2));
}
control.InnerHtml = text;
}
else if (e.Item.DataItem is BlogEngine.Core.Page)
{
BlogEngine.Core.Page page = (BlogEngine.Core.Page)e.Item.DataItem;
string text = string.Format(type, Resources.labels.page);
if (!string.IsNullOrEmpty(page.Keywords))
{
text += "<br />" + string.Format(keywords, page.Keywords);
}
control.InnerHtml = text;
}
}
#endregion
#region Data binding
private void BindSearchResult(List<IPublishable> list)
{
int page = 1;
string queryStringPage = Request.QueryString["page"];
if (!String.IsNullOrWhiteSpace(queryStringPage))
{
int.TryParse(queryStringPage, out page);
// Negative numbers can be passed, throwing an ArgumentOutOfRange exception.
if (page < 1)
{
page = 1;
}
}
int start = PAGE_SIZE * (page - 1);
if (start <= list.Count - 1)
{
int size = PAGE_SIZE;
if (start + size > list.Count)
{
size = list.Count - start;
}
rep.DataSource = list.GetRange(start, size);
rep.DataBind();
BindPaging(list.Count, page - 1);
}
}
private void BindPaging(int results, int page)
{
if (results <= PAGE_SIZE)
{
return;
}
decimal pages = Math.Ceiling((decimal)results / (decimal)PAGE_SIZE);
HtmlGenericControl ul = new HtmlGenericControl("ul");
ul.Attributes.Add("class", "paging");
string q = Server.HtmlEncode(Request.QueryString["q"]);
string comment = Request.QueryString["comment"];
for (int i = 0; i < pages; i++)
{
HtmlGenericControl li = new HtmlGenericControl("li");
if (i == page)
{
li.Attributes.Add("class", "active");
}
HtmlAnchor a = new HtmlAnchor();
a.InnerHtml = (i + 1).ToString();
string comm = comment;
if (comm != null)
{
comm = "&comment=true";
}
a.HRef = "?q=" + q + comm + "&page=" + (i + 1);
li.Controls.Add(a);
ul.Controls.Add(li);
}
Paging.Controls.Add(ul);
}
#endregion
#region Data manipulation
/// <summary>
/// Removes the comment anchor from the URL
/// </summary>
protected string ShortenUrl(string uri)
{
if (!uri.Contains("#"))
return uri;
int index = uri.IndexOf("#");
return uri.Substring(0, index);
}
/// <summary>
/// Shortens the content to fit to a search result
/// </summary>
protected string GetContent(string description, string content)
{
string text = string.Empty;
if (!string.IsNullOrEmpty(description))
{
text = description;
}
else
{
text = Utils.StripHtml(content);
if (text.Length > 200)
{
text = text.Substring(0, 200) + " ...";
}
text = "\"" + text.Trim() + "\"";
}
return text;
}
#endregion
}