Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / WebControls / MailDefinition.cs / 1 / MailDefinition.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web.UI.WebControls { using System.Security.Permissions; using System.Net.Mail; using System.Net.Mime; using System.Collections; using System.ComponentModel; using System.IO; using System.Drawing.Design; using System.Text.RegularExpressions; using System.Web; using System.Web.Util; using System.Text; using System.Web.Configuration; using System.Configuration; ////// Defines an email message. Smaller object model than System.Net.Mail.MailMessage. Creates a MailMessage /// from a string or a file containing the message body. Can perform textual substitutions in the message body /// when given a dictionary mapping strings to their replacements. /// [ Bindable(false), TypeConverterAttribute(typeof(EmptyStringExpandableObjectConverter)), ParseChildren(true, "") ] [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class MailDefinition : IStateManager { private bool _isTrackingViewState; private StateBag _viewState; private EmbeddedMailObjectsCollection _embeddedObjects; private string _bodyFileName; ////// The file that contains the body of the e-mail message. /// [ WebCategory("Behavior"), DefaultValue(""), WebSysDescription(SR.MailDefinition_BodyFileName), Editor("System.Web.UI.Design.WebControls.MailDefinitionBodyFileNameEditor, " + AssemblyRef.SystemDesign, typeof(UITypeEditor)), UrlProperty("*.*"), NotifyParentProperty(true) ] public string BodyFileName { get { return (_bodyFileName == null) ? String.Empty : _bodyFileName; } set { _bodyFileName = value; } } ////// A semicolon-delimited list of e-mail addresses that receive a carbon copy (CC) of the e-mail message. /// [ WebCategory("Behavior"), DefaultValue(""), WebSysDescription(SR.MailDefinition_CC), NotifyParentProperty(true) ] public string CC { get { object obj = ViewState["CC"]; return (obj == null) ? String.Empty : (string)obj; } set { ViewState["CC"] = value; } } ///// /// The sender's e-mail address. /// [ WebCategory("Behavior"), DefaultValue(""), WebSysDescription(SR.MailDefinition_From), NotifyParentProperty(true) ] public string From { get { object obj = ViewState["From"]; return (obj == null) ? String.Empty : (string)obj; } set { ViewState["From"] = value; } } ////// Embedded mail objects /// [ DefaultValue(null), NotifyParentProperty(true), PersistenceMode(PersistenceMode.InnerProperty), WebCategory("Behavior"), WebSysDescription(SR.MailDefinition_EmbeddedObjects), ] public EmbeddedMailObjectsCollection EmbeddedObjects { get { if (_embeddedObjects == null) { _embeddedObjects = new EmbeddedMailObjectsCollection(); } return _embeddedObjects; } } [ WebCategory("Behavior"), DefaultValue(false), WebSysDescription(SR.MailDefinition_IsBodyHtml), NotifyParentProperty(true) ] public bool IsBodyHtml { get { object obj = ViewState["IsBodyHtml"]; return (obj == null) ? false : (bool)obj; } set { ViewState["IsBodyHtml"] = value; } } [ WebCategory("Behavior"), DefaultValue(MailPriority.Normal), WebSysDescription(SR.MailDefinition_Priority), NotifyParentProperty(true) ] public MailPriority Priority { get { object obj = ViewState["Priority"]; return (obj == null) ? MailPriority.Normal : (MailPriority) obj; } set { if (value < MailPriority.Normal || value > MailPriority.High) { throw new ArgumentOutOfRangeException("value"); } ViewState["Priority"] = value; } } ////// The subject line of the e-mail message. /// [ WebCategory("Behavior"), DefaultValue(""), WebSysDescription(SR.MailDefinition_Subject), NotifyParentProperty(true) ] public string Subject { get { object obj = ViewState["Subject"]; return (obj == null) ? String.Empty : (string)obj; } set { ViewState["Subject"] = value; } } // internal string SubjectInternal { get { return (string)ViewState["Subject"]; } } ////// Manages the viewstate for this class, since we don't extend Control. /// [ Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) ] private StateBag ViewState { get { if (_viewState == null) { _viewState = new StateBag(false); if (_isTrackingViewState) { ((IStateManager)_viewState).TrackViewState(); } } return _viewState; } } ////// Creates a MailMessage using the BodyFileName property. /// public MailMessage CreateMailMessage(string recipients, IDictionary replacements, Control owner) { if (owner == null) { throw new ArgumentNullException("owner"); } string body = String.Empty; string bodyFileName = BodyFileName; if (!String.IsNullOrEmpty(bodyFileName)) { string path = bodyFileName; if (!UrlPath.IsAbsolutePhysicalPath(path)) { // Relative so we need to add the template source directory to the path path = UrlPath.Combine(owner.AppRelativeTemplateSourceDirectory, path); } TextReader reader = new StreamReader(owner.OpenFile(path)); try { body = reader.ReadToEnd(); } finally { reader.Close(); } } return CreateMailMessage(recipients, replacements, body, owner); } ////// Creates a MailMessage using the body parameter. /// public MailMessage CreateMailMessage(string recipients, IDictionary replacements, string body, Control owner) { if (owner == null) { throw new ArgumentNullException("owner"); } string from = From; if (String.IsNullOrEmpty(from)) { System.Net.Configuration.SmtpSection smtpSection = RuntimeConfig.GetConfig().Smtp; if (smtpSection == null || smtpSection.Network == null || String.IsNullOrEmpty(smtpSection.From)) { throw new HttpException(SR.GetString(SR.MailDefinition_NoFromAddressSpecified)); } else { from = smtpSection.From; } } MailMessage message = null; try { message = new MailMessage(from, recipients); if (!String.IsNullOrEmpty(CC)) { message.CC.Add(CC); } if (!String.IsNullOrEmpty(Subject)) { message.Subject = Subject; } message.Priority = Priority; if (replacements != null && !String.IsNullOrEmpty(body)) { foreach (object key in replacements.Keys) { string fromString = key as string; string toString = replacements[key] as string; if ((fromString == null) || (toString == null)) { throw new ArgumentException(SR.GetString(SR.MailDefinition_InvalidReplacements)); } body = Regex.Replace(body, fromString, toString, RegexOptions.IgnoreCase); } } // If there are any embedded objects, we need to construct an alternate view with text/html // And add all of the embedded objects as linked resouces if (EmbeddedObjects.Count > 0) { string viewContentType = (IsBodyHtml ? MediaTypeNames.Text.Html : MediaTypeNames.Text.Plain); AlternateView view = AlternateView.CreateAlternateViewFromString(body, null, viewContentType); foreach (EmbeddedMailObject part in EmbeddedObjects) { string path = part.Path; if (String.IsNullOrEmpty(path)) { throw ExceptionUtil.PropertyNullOrEmpty("EmbeddedMailObject.Path"); } if (!UrlPath.IsAbsolutePhysicalPath(path)) { VirtualPath virtualPath = VirtualPath.Combine(owner.TemplateControlVirtualDirectory, VirtualPath.Create(path)); path = virtualPath.AppRelativeVirtualPathString; } // The FileStream will be closed by MailMessage.Dispose() LinkedResource lr = null; try { Stream stream = null; try { stream = owner.OpenFile(path); lr = new LinkedResource(stream); } catch { if (stream != null) { ((IDisposable)stream).Dispose(); } throw; } lr.ContentId = part.Name; lr.ContentType.Name = UrlPath.GetFileName(path); view.LinkedResources.Add(lr); } catch { if (lr != null) { lr.Dispose(); } throw; } } message.AlternateViews.Add(view); } else if (!String.IsNullOrEmpty(body)) { message.Body = body; } message.IsBodyHtml = IsBodyHtml; return message; } catch { if (message != null) { message.Dispose(); } throw; } } #region IStateManager implementation ///bool IStateManager.IsTrackingViewState { get { return _isTrackingViewState; } } /// void IStateManager.LoadViewState(object savedState) { if (savedState != null) { ((IStateManager)ViewState).LoadViewState(savedState); } } /// object IStateManager.SaveViewState() { if (_viewState != null) { return ((IStateManager)_viewState).SaveViewState(); } return null; } /// void IStateManager.TrackViewState() { _isTrackingViewState = true; if (_viewState != null) { ((IStateManager)_viewState).TrackViewState(); } } #endregion } }
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