+//
+// System.Web.UI.WebControls.AdRotator
//
-// System.Web.UI.WebControls.AdRotator.cs
-//
-// Authors:
-// Gaurav Vaish (gvaish@iitk.ac.in)
-// Gonzalo Paniagua Javier (gonzalo@ximian.com)
-// Andreas Nahr (ClassDevelopment@A-SoftTech.com)
-//
-// (c) 2002 Ximian, Inc. (http://www.ximian.com)
-// (C) Gaurav Vaish (2002)
-// (C) 2003 Andreas Nahr
+// Author:
+// Ben Maurer <bmaurer@novell.com>
//
-
+// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
-using System;
-using System.IO;
-using System.Collections;
-using System.Collections.Specialized;
-using System.Web;
-using System.Web.Caching;
-using System.Web.UI;
using System.Xml;
-using System.Web.Util;
+using System.Collections;
using System.ComponentModel;
-using System.ComponentModel.Design;
+using System.Security.Permissions;
+using System.Web.Util;
+
+namespace System.Web.UI.WebControls {
-namespace System.Web.UI.WebControls
-{
+ // CAS
+ [AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
+ [AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
+ // attributes
[DefaultEvent("AdCreated")]
[DefaultProperty("AdvertisementFile")]
- [Designer ("System.Web.UI.Design.WebControls.AdRotatorDesigner, " + Consts.AssemblySystem_Design, typeof (IDesigner))]
- [ToolboxData("<{0}:AdRotator runat=\"server\" Height=\"60px\" "
- + "Width=\"468\"></{0}:AdRotator>")]
- public class AdRotator: WebControl
+ [Designer("System.Web.UI.Design.WebControls.AdRotatorDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
+#if NET_2_0
+ [ToolboxData("<{0}:AdRotator runat=\"server\"></{0}:AdRotator>")]
+#else
+ [ToolboxData("<{0}:AdRotator runat=\"server\" Height=\"60px\" Width=\"468px\"></{0}:AdRotator>")]
+#endif
+ public class AdRotator :
+#if NET_2_0
+ DataBoundControl
+#else
+ WebControl
+#endif
{
- string advertisementFile;
- static readonly object AdCreatedEvent = new object();
-
- // Will be set values during (On)PreRender-ing
- string alternateText;
- string imageUrl;
- string navigateUrl;
- string fileDirectory;
- Random random;
-
- public AdRotator ()
+#if NET_2_0
+ protected internal override void OnInit (EventArgs e)
{
- advertisementFile = "";
- fileDirectory = null;
+ base.OnInit(e);
}
-
- AdRecord[] LoadAdFile (string file)
+#endif
+
+#if NET_2_0
+ protected internal
+#else
+ protected
+#endif
+ override void OnPreRender (EventArgs eee)
{
- Stream fStream;
- try {
- fStream = new FileStream (file, FileMode.Open, FileAccess.Read, FileShare.Read);
- } catch (Exception e) {
- throw new HttpException("AdRotator: Unable to open file", e);
+ Hashtable ht = null;
+
+ if (ad_file != "" && ad_file != null) {
+ ReadAdsFromFile (
+#if NET_2_0
+ GetPhysicalFilePath (ad_file)
+#else
+ Page.MapPath (ad_file)
+#endif
+ );
+ ht = ChooseAd ();
}
- ArrayList list = new ArrayList ();
- try {
- IDictionary hybridDict = null;
- XmlDocument document = new XmlDocument ();
- document.Load (fStream);
-
- XmlElement docElem = document.DocumentElement;
-
- if (docElem == null)
- throw new HttpException ("No advertisements found");
-
- if (docElem.LocalName != "Advertisements")
- throw new HttpException ("No advertisements found: invalid document element");
-
- XmlNode node = docElem.FirstChild;
- while (node != null) {
- if (node.LocalName == "Ad") {
- XmlNode innerNode = node.FirstChild;
- while (innerNode != null) {
- if (node.NodeType == XmlNodeType.Element) {
- if (hybridDict == null)
- hybridDict = new HybridDictionary ();
-
- hybridDict.Add (innerNode.LocalName, innerNode.InnerText);
- }
- innerNode = innerNode.NextSibling;
- }
-
- if (hybridDict != null) {
- list.Add (hybridDict);
- hybridDict = null;
- }
- }
- node = node.NextSibling;
- }
-
- } catch(Exception e) {
- throw new HttpException("Parse error:" + file, e);
- } finally {
- if (fStream != null)
- fStream.Close();
- }
-
- if (list.Count == 0)
- throw new HttpException ("No advertisements found");
-
- AdRecord [] adsArray = new AdRecord [list.Count];
- int count = list.Count;
- for (int i = 0; i < count; i++)
- adsArray [i] = new AdRecord ((IDictionary) list [i]);
-
- return adsArray;
+ AdCreatedEventArgs e = new AdCreatedEventArgs (ht);
+ OnAdCreated (e);
+ createdargs = e;
+
}
- AdRecord [] GetData (string file)
+#if NET_2_0
+ [MonoTODO ("Not implemented")]
+ protected internal override void PerformDataBinding (IEnumerable data)
{
- string physPath = MapPathSecure (file);
- string AdKey = "AdRotatorCache: " + physPath;
- fileDirectory = UrlUtils.GetDirectory (UrlUtils.Combine (TemplateSourceDirectory, file));
- Cache cache = HttpRuntime.Cache;
- AdRecord[] records = (AdRecord[]) cache [AdKey];
- if (records == null) {
- records = LoadAdFile (physPath);
- cache.Insert (AdKey, records, new CacheDependency (physPath));
- }
-
- return records;
+ throw new NotImplementedException ();
}
- IDictionary SelectAd ()
+ [MonoTODO ("Not implemented")]
+ protected override void PerformSelect ()
{
- AdRecord[] records = GetData (AdvertisementFile);
- if (records == null || records.Length ==0)
- return null;
+ throw new NotImplementedException ();
+ }
+#endif
- int impressions = 0;
- int rlength = records.Length;
- for (int i=0 ; i < rlength; i++) {
- if (IsAdMatching (records [i]))
- impressions += records [i].Hits;
- }
+ AdCreatedEventArgs createdargs;
- if (impressions == 0)
- return null;
+#if NET_2_0
+ protected internal
+#else
+ protected
+#endif
+ override void Render (HtmlTextWriter w)
+ {
+ AdCreatedEventArgs e = createdargs;
- if (random == null)
- random = new Random ();
+ base.AddAttributesToRender (w);
- int rnd = random.Next (impressions) + 1;
- int counter = 0;
- int index = 0;
- for (int i = 0; i < rlength; i++) {
- if(IsAdMatching(records[i])) {
- if (rnd <= (counter + records [i].Hits)) {
- index = i;
- break;
- }
- counter += records [i].Hits;
- }
- }
+ if (e.NavigateUrl != null && e.NavigateUrl.Length > 0)
+ w.AddAttribute (HtmlTextWriterAttribute.Href, ResolveAdUrl (e.NavigateUrl));
+ if (Target != null && Target.Length > 0)
+ w.AddAttribute (HtmlTextWriterAttribute.Target, Target);
+
+ w.RenderBeginTag (HtmlTextWriterTag.A);
+
+ if (e.ImageUrl != null && e.ImageUrl.Length > 0)
+ w.AddAttribute (HtmlTextWriterAttribute.Src, ResolveAdUrl (e.ImageUrl));
- return records [index].Properties;
+ w.AddAttribute (HtmlTextWriterAttribute.Alt, e.AlternateText == null ? "" : e.AlternateText);
+ w.AddAttribute (HtmlTextWriterAttribute.Border, "0", false);
+ w.RenderBeginTag (HtmlTextWriterTag.Img);
+ w.RenderEndTag (); // img
+ w.RenderEndTag (); // a
}
- private bool IsAdMatching (AdRecord currAd)
+ string ResolveAdUrl (string url)
{
- if (KeywordFilter != String.Empty)
- return (0 == String.Compare (currAd.Keyword, KeywordFilter, true));
+ string path = url;
- return true;
+ if (AdvertisementFile != null && AdvertisementFile.Length > 0 && path [0] != '/' && path [0] != '~')
+ try {
+ new Uri (path);
+ }
+ catch {
+ return UrlUtils.Combine (UrlUtils.GetDirectory (ResolveUrl (AdvertisementFile)), path);
+ }
+
+ return ResolveUrl (path);
}
- private string ResolveAdUrl (string relativeUrl)
+ //
+ // We take all the ads in the ad file and add up their
+ // impression weight. We then take a random number [0,
+ // TotalImpressions). We then choose the ad that is
+ // that number or less impressions for the beginning
+ // of the file. This lets us respect the weights
+ // given.
+ //
+ Hashtable ChooseAd ()
{
- if (relativeUrl.Length==0 || !UrlUtils.IsRelativeUrl (relativeUrl))
- return relativeUrl;
+ // cache for performance
+ string KeywordFilter = this.KeywordFilter;
+
+ int total_imp = 0;
+ int cur_imp = 0;
+
+ foreach (Hashtable a in ads) {
+ if (KeywordFilter == "" || KeywordFilter == (string) a ["Keyword"])
+ total_imp += a ["Impressions"] != null ? int.Parse ((string) a ["Impressions"]) : 1;
+ }
- string fullUrl;
- if (fileDirectory != null)
- fullUrl = fileDirectory;
- else
- fullUrl = TemplateSourceDirectory;
+ int r = new Random ().Next (total_imp);
- if (fullUrl.Length == 0)
- return relativeUrl;
+ foreach (Hashtable a in ads) {
+ if (KeywordFilter != "" && KeywordFilter != (string) a ["Keyword"])
+ continue;
+ cur_imp += a ["Impressions"] != null ? int.Parse ((string) a ["Impressions"]) : 1;
+
+ if (cur_imp > r)
+ return a;
+ }
- return UrlUtils.Combine (fullUrl, relativeUrl);
+ if (total_imp != 0)
+ throw new Exception ("I should only get here if no ads matched");
+
+ return null;
}
- [WebCategory("Action")]
- [WebSysDescription("AdRotator_OnAdCreated")]
- public event AdCreatedEventHandler AdCreated {
- add { Events.AddHandler (AdCreatedEvent, value); }
- remove { Events.RemoveHandler (AdCreatedEvent, value); }
+ ArrayList ads = new ArrayList ();
+
+ void ReadAdsFromFile (string s)
+ {
+ XmlDocument d = new XmlDocument ();
+ try {
+ d.Load (s);
+ } catch (Exception e) {
+ throw new HttpException ("AdRotator could not parse the xml file", e);
+ }
+
+ ads.Clear ();
+
+ foreach (XmlNode n in d.DocumentElement.ChildNodes) {
+
+ Hashtable ad = new Hashtable ();
+
+ foreach (XmlNode nn in n.ChildNodes)
+ ad.Add (nn.Name, nn.InnerText);
+
+ ads.Add (ad);
+ }
}
+
+ string ad_file = "";
+#if NET_2_0
+ [UrlProperty]
+#endif
[Bindable(true)]
[DefaultValue("")]
- [Editor ("System.Web.UI.Design.XmlUrlEditor, " + Consts.AssemblySystem_Design, typeof (System.Drawing.Design.UITypeEditor))]
- [WebCategory("Behaviour")]
- [WebSysDescription("AdRotator_AdvertisementFile")]
+ [Editor("System.Web.UI.Design.XmlUrlEditor, " + Consts.AssemblySystem_Design, typeof(System.Drawing.Design.UITypeEditor))]
+ [WebSysDescription("")]
+ [WebCategory("Behavior")]
public string AdvertisementFile {
- get { return ((advertisementFile != null) ? advertisementFile : ""); }
- set { advertisementFile = value; }
+ get {
+ return ad_file;
+ }
+ set {
+ ad_file = value;
+ }
+
}
- [Browsable (false), EditorBrowsable (EditorBrowsableState.Never)]
- [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
+#if NET_2_0
+ [DefaultValue ("AlternateText")]
+ [WebSysDescriptionAttribute ("")]
+ [WebCategoryAttribute ("Behavior")]
+ [MonoTODO ("Not implemented")]
+ public string AlternateTextField
+ {
+ get {
+ throw new NotImplementedException ();
+ }
+ set {
+ throw new NotImplementedException ();
+ }
+ }
+#endif
+
+ [Browsable(false)]
+ [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+ [EditorBrowsable(EditorBrowsableState.Never)]
public override FontInfo Font {
- get { return base.Font; }
+ get {
+ return base.Font;
+ }
}
- [Bindable(true)]
- [DefaultValue("")]
- [WebCategory("Behaviour")]
- [WebSysDescription("AdRotator_KeywordFilter")]
- public string KeywordFilter {
+#if NET_2_0
+ [DefaultValue ("ImageUrl")]
+ [MonoTODO ("Not implemented")]
+ [WebSysDescriptionAttribute ("")]
+ [WebCategoryAttribute ("Behavior")]
+ public string ImageUrlField
+ {
get {
- object o = ViewState ["KeywordFilter"];
- if (o != null)
- return (string) o;
-
- return String.Empty;
+ throw new NotImplementedException ();
}
set {
- if(value != null)
- ViewState ["KeywordFilter"] = value.Trim ();
+ throw new NotImplementedException ();
}
}
+#endif
+
[Bindable(true)]
[DefaultValue("")]
- [TypeConverter(typeof(TargetConverter))]
- [WebCategory("Behaviour")]
- [WebSysDescription("AdRotator_Target")]
- public string Target {
+ [WebSysDescription("")]
+ [WebCategory("Behavior")]
+ public string KeywordFilter {
get {
- object o = ViewState ["Target"];
- if (o != null)
- return (string) o;
-
- return "_top";
+ return ViewState.GetString ("KeywordFilter", "");
}
set {
- ViewState["Target"] = value;
+ ViewState ["KeywordFilter"] = value;
}
+
}
- protected override ControlCollection CreateControlCollection ()
+#if NET_2_0
+ [DefaultValue ("NavigateUrl")]
+ [MonoTODO ("Not implemented")]
+ [WebSysDescriptionAttribute ("")]
+ [WebCategoryAttribute ("Behavior")]
+ public string NavigateUrlField
{
- return new EmptyControlCollection (this);
+ get {
+ throw new NotImplementedException ();
+ }
+ set {
+ throw new NotImplementedException ();
+ }
}
-
- protected virtual void OnAdCreated (AdCreatedEventArgs e)
- {
- if (Events == null)
- return;
-
- AdCreatedEventHandler aceh = (AdCreatedEventHandler) Events [AdCreatedEvent];
- if (aceh != null)
- aceh (this, e);
+#endif
+
+ [Bindable(true)]
+ [DefaultValue("_top")]
+ [TypeConverter(typeof(System.Web.UI.WebControls.TargetConverter))]
+ [WebSysDescription("")]
+ [WebCategory("Behavior")]
+ public string Target {
+ get {
+ return ViewState.GetString ("Target", "_top");
+ }
+ set {
+ ViewState ["Target"] = value;
+ }
+
}
- protected override void OnPreRender (EventArgs e)
+#if NET_2_0
+ /* all these are listed in corcompare */
+ public override string UniqueID
{
- if(AdvertisementFile == String.Empty)
- return;
-
- AdCreatedEventArgs acea = new AdCreatedEventArgs (SelectAd ());
- OnAdCreated (acea);
- imageUrl = acea.ImageUrl;
- navigateUrl = acea.NavigateUrl;
- alternateText = acea.AlternateText;
+ get {
+ return base.UniqueID;
+ }
}
- protected override void Render (HtmlTextWriter writer)
+ protected override HtmlTextWriterTag TagKey
{
- HyperLink hLink = new HyperLink ();
- Image adImage = new Image();
- foreach (string current in Attributes.Keys)
- hLink.Attributes [current] = Attributes [current];
-
- if (ID != null && ID.Length > 0)
- hLink.ID = ID;
-
- hLink.Target = Target;
- hLink.AccessKey = AccessKey;
- hLink.Enabled = Enabled;
- hLink.TabIndex = TabIndex;
- if (navigateUrl != null && navigateUrl.Length != 0)
- hLink.NavigateUrl = ResolveAdUrl (navigateUrl);
-
- hLink.RenderBeginTag (writer);
- if (ControlStyleCreated)
- adImage.ApplyStyle(ControlStyle);
-
- if(imageUrl!=null && imageUrl.Length > 0)
- adImage.ImageUrl = ResolveAdUrl (imageUrl);
-
- adImage.AlternateText = alternateText;
- adImage.ToolTip = ToolTip;
- adImage.RenderControl (writer);
- hLink.RenderEndTag (writer);
+ get {
+ return base.TagKey;
+ }
}
-
- class AdRecord
+#endif
+
+ protected virtual void OnAdCreated (AdCreatedEventArgs e)
{
- public IDictionary Properties;
- public int Hits; // or impressions or clicks
- public string Keyword;
+ AdCreatedEventHandler h = (AdCreatedEventHandler) Events [AdCreatedEvent];
+ if (h != null)
+ h (this, e);
+ }
- public AdRecord (IDictionary adProps)
- {
- this.Properties = adProps;
- Keyword = Properties ["Keyword"] as string;
- if (Keyword == null)
- Keyword = "";
+ static readonly object AdCreatedEvent = new object ();
- string imp = Properties ["Impressions"] as string;
- Hits = 1;
- if (imp != null) {
- try {
- Hits = Int32.Parse (imp);
- } catch {
- }
- }
- }
+ [WebSysDescription("")]
+ [WebCategory("Action")]
+ public event AdCreatedEventHandler AdCreated {
+ add { Events.AddHandler (AdCreatedEvent, value); }
+ remove { Events.RemoveHandler (AdCreatedEvent, value); }
}
}
}
-
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