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RSS.aspx.vb
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RSS.aspx.vb
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'
' Simple Gallery for DotNetNuke - http://www.dotnetnuke.com
' Copyright (c) 2002-2007
' by Ventrian ( [email protected] ) ( http://www.ventrian.com )
'
Imports System.Web
Imports System.IO
Imports System.Text
Imports System.Xml
Imports DotNetNuke.Common
Imports DotNetNuke.Common.Utilities
Imports DotNetNuke.Entities.Modules
Imports DotNetNuke.Entities.Portals
Imports DotNetNuke.Framework
Imports DotNetNuke.Services.Exceptions
Imports DotNetNuke.Services.Localization
Imports Ventrian.SimpleGallery.Common
Imports Ventrian.SimpleGallery.Entities
Namespace Ventrian.SimpleGallery
Partial Public Class RSS
Inherits System.Web.UI.Page
#Region " Private Members "
Dim _tabID As Integer = Null.NullInteger
Dim _moduleID As Integer = Null.NullInteger
Dim _tabModuleID As Integer = Null.NullInteger
Dim _albumID As Integer = Null.NullInteger
Dim _maxCount As Integer = Null.NullInteger
Dim _tagID As Integer = Null.NullInteger
#End Region
#Region " Private Methods "
Private Sub ReadQueryString()
If Not (Request("T") Is Nothing) Then
_tabID = Convert.ToInt32(Request("T"))
End If
If Not (Request("M") Is Nothing) Then
_moduleID = Convert.ToInt32(Request("M"))
End If
If Not (Request("TM") Is Nothing) Then
_tabModuleID = Convert.ToInt32(Request("TM"))
End If
If Not (Request("A") Is Nothing) Then
_albumID = Convert.ToInt32(Request("A"))
End If
If Not (Request("MaxCount") Is Nothing) Then
_maxCount = Convert.ToInt32(Request("MaxCount"))
End If
If Not (Request("TagID") Is Nothing) Then
_tagID = Convert.ToInt32(Request("TagID"))
End If
End Sub
#End Region
#Region " Event Handlers "
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Try
ReadQueryString()
Dim _portalSettings As PortalSettings = CType(HttpContext.Current.Items("PortalSettings"), PortalSettings)
Response.ContentType = "text/xml"
Response.ContentEncoding = Encoding.UTF8
Dim sw As StringWriter = New StringWriter
Dim writer As XmlTextWriter = New XmlTextWriter(sw)
writer.WriteStartElement("rss")
writer.WriteAttributeString("version", "2.0")
writer.WriteAttributeString("xmlns:dc", "http://purl.org/dc/elements/1.1/")
writer.WriteAttributeString("xmlns:cf", "http://www.microsoft.com/schemas/rss/core/2005")
writer.WriteAttributeString("xmlns:simplegallery", "http://www.example.com/simplegallery")
writer.WriteStartElement("channel")
writer.WriteElementString("cf:treatAs", "list")
Dim objModuleController As New ModuleController
Dim objModule As ModuleInfo = objModuleController.GetModule(_moduleID, _tabID)
Dim objAlbumController As New AlbumController
Dim objAlbum As New AlbumInfo
If (_albumID <> Null.NullInteger) Then
objAlbum = objAlbumController.Get(_albumID)
End If
If (objAlbum Is Nothing) Then
writer.WriteEndElement()
writer.WriteEndElement()
Response.Write(sw.ToString())
Response.End()
End If
Dim objTagController As New TagController
Dim objTag As New TagInfo
If (_tagID <> Null.NullInteger) Then
objTag = objTagController.Get(_tagID)
End If
Dim title As String = ""
If Not (objModule Is Nothing) Then
If (_albumID <> Null.NullInteger) Then
title = objModule.ModuleTitle & ": Latest Photos for " & objAlbum.Caption
Else
If (_tagID <> Null.NullInteger) Then
title = objModule.ModuleTitle & ": Latest Photos for " & objTag.Name
Else
title = objModule.ModuleTitle & ": Latest Photos"
End If
End If
End If
Dim objPhotoController As New PhotoController
Dim objPhotos As ArrayList
If (_maxCount <> Null.NullInteger) Then
objPhotos = objPhotoController.List(_moduleID, _albumID, True, _maxCount, False, _tagID, Null.NullString(), Null.NullString, Common.SortType.DateApproved, Common.SortDirection.DESC)
PhotoInfo.SortDirection = Common.SortDirection.DESC.ToString()
PhotoInfo.SortBy = Common.SortType.DateApproved.ToString()
Else
Dim objSettings As Hashtable = objModuleController.GetTabModuleSettings(_tabModuleID)
If (objSettings.Contains(Common.Constants.SETTING_SORT_DIRECTION)) Then
PhotoInfo.SortDirection = objSettings(Common.Constants.SETTING_SORT_DIRECTION).ToString()
Else
PhotoInfo.SortDirection = Common.SortDirection.DESC.ToString()
End If
If (objSettings.Contains(Common.Constants.SETTING_SORT_BY)) Then
PhotoInfo.SortBy = objSettings(Common.Constants.SETTING_SORT_BY).ToString()
Else
PhotoInfo.SortBy = Common.SortType.DateApproved.ToString()
End If
objPhotos = objPhotoController.List(_moduleID, _albumID, True, _maxCount, False, _tagID, Null.NullString(), Null.NullString, CType(System.Enum.Parse(GetType(Common.SortType), PhotoInfo.SortBy), Common.SortType), CType(System.Enum.Parse(GetType(Common.SortDirection), PhotoInfo.SortDirection), Common.SortDirection))
End If
writer.WriteStartElement("cf:listinfo")
If (PhotoInfo.SortBy <> Common.SortType.DateApproved.ToString()) Then
writer.WriteStartElement("cf:sort")
writer.WriteAttributeString("element", "pubDate")
writer.WriteAttributeString("data-type", "date")
writer.WriteAttributeString("label", "Date")
writer.WriteEndElement()
End If
writer.WriteStartElement("cf:sort")
Select Case PhotoInfo.SortBy.ToLower()
Case Common.SortType.DateApproved.ToString().ToLower()
writer.WriteAttributeString("label", "Date")
Exit Select
Case Common.SortType.DateCreated.ToString().ToLower()
writer.WriteAttributeString("label", "Date")
Exit Select
Case Common.SortType.FileName.ToString().ToLower()
writer.WriteAttributeString("label", "Filename")
Exit Select
Case Common.SortType.Name.ToString().ToLower()
writer.WriteAttributeString("label", "Title")
Exit Select
End Select
writer.WriteAttributeString("default", "true")
writer.WriteEndElement()
If (PhotoInfo.SortBy <> Common.SortType.Name.ToString()) Then
writer.WriteStartElement("cf:sort")
writer.WriteAttributeString("element", "title")
writer.WriteAttributeString("data-type", "text")
writer.WriteAttributeString("label", "Title")
writer.WriteEndElement()
End If
writer.WriteStartElement("cf:sort")
writer.WriteAttributeString("element", "dc:creator")
writer.WriteAttributeString("data-type", "text")
writer.WriteAttributeString("label", "Author")
writer.WriteEndElement()
writer.WriteStartElement("cf:group")
writer.WriteAttributeString("ns", "http://www.example.com/simplegallery")
writer.WriteAttributeString("element", "album")
writer.WriteAttributeString("label", "Album")
writer.WriteEndElement()
writer.WriteStartElement("cf:group")
writer.WriteAttributeString("ns", "http://www.example.com/simplegallery")
writer.WriteAttributeString("element", "tag")
writer.WriteAttributeString("label", "Tag")
writer.WriteEndElement()
writer.WriteEndElement()
Dim objPagedDataSource As New System.Web.UI.WebControls.PagedDataSource
objPagedDataSource.DataSource = objPhotos
If (_maxCount <> Null.NullInteger) Then
objPagedDataSource.AllowPaging = True
objPagedDataSource.PageSize = _maxCount
End If
writer.WriteElementString("title", title)
Dim link As String = ""
If (_albumID <> Null.NullInteger) Then
link = (NavigateURL(_tabID, Null.NullString, "AlbumID=" & _moduleID.ToString() & "-" & _albumID.ToString()))
Else
If (_tagID <> Null.NullInteger) Then
link = (NavigateURL(_tabID, Null.NullString, "TagID=" & _tagID.ToString()))
Else
link = (NavigateURL(_tabID))
End If
End If
If Not (link.StartsWith("http://") Or link.StartsWith("https://")) Then
link = AddHTTP(System.Web.HttpContext.Current.Request.Url.Host & link)
End If
writer.WriteElementString("link", link)
writer.WriteElementString("description", "")
If (objPhotos.Count > 0) Then
Dim maxDate As DateTime = DateTime.MinValue
For Each objPhoto As PhotoInfo In objPagedDataSource
If objPhoto.DateApproved > maxDate Then
maxDate = objPhoto.DateApproved
End If
Next
writer.WriteElementString("pubDate", maxDate.ToUniversalTime.ToString("r"))
writer.WriteElementString("lastBuildDate", maxDate.ToUniversalTime.ToString("r"))
Else
writer.WriteElementString("pubDate", DateTime.Now.ToUniversalTime.ToString("r"))
writer.WriteElementString("lastBuildDate", DateTime.Now.ToUniversalTime.ToString("r"))
End If
writer.WriteStartElement("image")
writer.WriteElementString("url", "http://" & System.Web.HttpContext.Current.Request.Url.Host & Me.ResolveUrl("Images\IconRSS.gif"))
writer.WriteElementString("title", title)
writer.WriteElementString("link", link)
writer.WriteEndElement()
For Each objPhoto As PhotoInfo In objPagedDataSource
writer.WriteStartElement("item")
writer.WriteStartElement("title")
writer.WriteString(objPhoto.Name)
writer.WriteEndElement()
Dim photoLink As String = ""
If (_tagID <> Null.NullInteger) Then
photoLink = NavigateURL(_tabID, "", "galleryType=SlideShow", "ItemID=" & objPhoto.PhotoID, "TagID=" & _tagID.ToString())
Else
photoLink = NavigateURL(_tabID, "", "galleryType=SlideShow", "ItemID=" & objPhoto.PhotoID.ToString(), "AlbumID=" & objPhoto.AlbumID.ToString())
End If
If Not (photoLink.StartsWith("http://") Or photoLink.StartsWith("https://")) Then
photoLink = AddHTTP(System.Web.HttpContext.Current.Request.Url.Host & photoLink)
End If
writer.WriteElementString("link", photoLink)
writer.WriteElementString("dc:creator", objPhoto.AuthorDisplayName)
writer.WriteStartElement("guid")
writer.WriteAttributeString("isPermaLink", "false")
writer.WriteString(objPhoto.PhotoID.ToString())
writer.WriteEndElement()
Dim tagsText As String = ""
If (objPhoto.Tags <> "") Then
Dim tags As String() = objPhoto.Tags.Split(","c)
tagsText = "<br /><b>Tags:</b>"
For Each tag As String In tags
tagsText = tagsText & " <a href='" & NavigateURL(_tabID, "", "Tag=" & tag, "Tags=" & _tabModuleID) & "'>" & tag & "</a>"
Next
End If
Dim portalHomeDirectory As String = _portalSettings.HomeDirectory & "/"
If (objPhoto.Description <> "") Then
writer.WriteElementString("description", objPhoto.Description & "<br /><a href=""" & photoLink & """><img src=""http://" & System.Web.HttpContext.Current.Request.Url.Host & Me.ResolveUrl("ImageHandler.ashx?width=" & GetPhotoWidth(CType(objPhoto, Object)) & "&height=" & GetPhotoHeight(CType(objPhoto, Object)) & "&HomeDirectory=" & System.Uri.EscapeDataString(portalHomeDirectory & objPhoto.HomeDirectory) & "&fileName=" & System.Uri.EscapeDataString(objPhoto.FileName) & "&portalid=" & objModule.PortalID.ToString) & """ /></a>" & tagsText)
Else
writer.WriteElementString("description", "<a href=""" & photoLink & """><img src=""http://" & System.Web.HttpContext.Current.Request.Url.Host & Me.ResolveUrl("ImageHandler.ashx?width=" & GetPhotoWidth(CType(objPhoto, Object)) & "&height=" & GetPhotoHeight(CType(objPhoto, Object)) & "&HomeDirectory=" & System.Uri.EscapeDataString(portalHomeDirectory & objPhoto.HomeDirectory) & "&fileName=" & System.Uri.EscapeDataString(objPhoto.FileName) & "&portalid=" & objModule.PortalID.ToString) & """ width=""" & GetPhotoWidth(CType(objPhoto, Object)) & """ height=""" & GetPhotoHeight(CType(objPhoto, Object)) & """ /></a>" & tagsText)
End If
writer.WriteElementString("pubDate", objPhoto.DateApproved.ToUniversalTime.ToString("r"))
writer.WriteElementString("simplegallery:album", objPhoto.AlbumName)
For Each tag As String In objPhoto.Tags.Split(","c)
If (tag <> "") Then
writer.WriteElementString("simplegallery:tag", tag)
End If
Next
writer.WriteStartElement("enclosure")
writer.WriteAttributeString("url", "http://" & System.Web.HttpContext.Current.Request.Url.Host & PortalSettings.Current.HomeDirectory & objPhoto.HomeDirectory & "/" & objPhoto.FileName)
writer.WriteAttributeString("type", "image/jpg")
writer.WriteEndElement()
writer.WriteEndElement()
Next
writer.WriteEndElement()
writer.WriteEndElement()
Response.Write(sw.ToString)
Catch exc As Exception 'Module failed to load
Response.End()
End Try
End Sub
Protected Function GetPhotoWidth(ByVal dataItem As Object) As String
Dim objPhoto As PhotoInfo = CType(dataItem, PhotoInfo)
If Not (objPhoto Is Nothing) Then
Dim width As Integer
If (objPhoto.Width > 240) Then
width = 240
Else
width = objPhoto.Width
End If
Dim height As Integer = Convert.ToInt32(objPhoto.Height / (objPhoto.Width / width))
If (height > 180) Then
height = 180
width = Convert.ToInt32(objPhoto.Width / (objPhoto.Height / height))
End If
Return width.ToString()
Else
Return 240.ToString()
End If
End Function
Protected Function GetPhotoHeight(ByVal dataItem As Object) As String
Dim objPhoto As PhotoInfo = CType(dataItem, PhotoInfo)
If Not (objPhoto Is Nothing) Then
Dim width As Integer
If (objPhoto.Width > 240) Then
width = 240
Else
width = objPhoto.Width
End If
Dim height As Integer = Convert.ToInt32(objPhoto.Height / (objPhoto.Width / width))
If (height > 180) Then
height = 180
width = Convert.ToInt32(objPhoto.Width / (objPhoto.Height / height))
End If
Return height.ToString()
Else
Return 180.ToString()
End If
End Function
#End Region
End Class
End Namespace