screwturn-4/Core/EmailTools.cs
2009-09-30 13:47:13 +00:00

130 lines
4.4 KiB
C#

using System;
using System.Configuration;
using System.Net;
using System.Net.Mail;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using ScrewTurn.Wiki.PluginFramework;
namespace ScrewTurn.Wiki {
/// <summary>
/// Implements email-related tools.
/// </summary>
public static class EmailTools {
/// <summary>
/// Sends an email.
/// </summary>
/// <param name="recipient">The recipient.</param>
/// <param name="sender">The sender.</param>
/// <param name="subject">The subject.</param>
/// <param name="body">The message body.</param>
/// <param name="html"><c>true</c> if the body is HTML.</param>
public static void AsyncSendEmail(string recipient, string sender, string subject, string body, bool html) {
System.Threading.ThreadPool.QueueUserWorkItem(delegate(object state) {
MailMessage message = new MailMessage(sender, recipient, subject, body);
message.IsBodyHtml = html;
TrySendMessage(message);
});
}
/// <summary>
/// Tries to send a message, swallowing all exceptions.
/// </summary>
/// <param name="message">The message to send.</param>
private static void TrySendMessage(MailMessage message) {
try {
GenerateSmtpClient().Send(message);
}
catch(Exception ex) {
if(ex is SmtpException) {
Log.LogEntry("Unable to send Email: " + ex.Message, EntryType.Error, Log.SystemUsername);
}
else Log.LogEntry(ex.ToString(), EntryType.Error, Log.SystemUsername);
}
}
/// <summary>
/// Generates a new SMTP client with the proper settings.
/// </summary>
/// <returns>The generates SMTP client.</returns>
private static SmtpClient GenerateSmtpClient() {
SmtpClient client = new SmtpClient(Settings.SmtpServer);
if(Settings.SmtpUsername.Length > 0) {
client.Credentials = new NetworkCredential(Settings.SmtpUsername, Settings.SmtpPassword);
}
client.EnableSsl = Settings.SmtpSsl;
if(Settings.SmtpPort != -1) client.Port = Settings.SmtpPort;
else if(Settings.SmtpSsl) client.Port = 465;
return client;
}
/// <summary>
/// Gets the email addresses of a set of users.
/// </summary>
/// <param name="users">The users.</param>
/// <returns>The email addresses.</returns>
public static string[] GetRecipients(UserInfo[] users) {
if(users == null) return new string[0];
string[] result = new string[users.Length];
for(int i = 0; i < result.Length; i++) {
result[i] = users[i].Email;
}
return result;
}
/// <summary>
/// Asynchronously sends a mass email, using BCC.
/// </summary>
/// <param name="recipients">The recipents.</param>
/// <param name="sender">The sender.</param>
/// <param name="subject">The subject.</param>
/// <param name="body">The body.</param>
/// <param name="html"><c>true</c> if the body is HTML.</param>
public static void AsyncSendMassEmail(string[] recipients, string sender, string subject, string body, bool html) {
if(recipients.Length == 0) return;
System.Threading.ThreadPool.QueueUserWorkItem(delegate(object state) {
MailMessage message = new MailMessage(new MailAddress(sender), new MailAddress(sender));
message.Subject = subject;
message.Body = body;
for(int i = 0; i < recipients.Length; i++) {
message.Bcc.Add(new MailAddress(recipients[i]));
}
message.IsBodyHtml = html;
TrySendMessage(message);
});
}
/// <summary>
/// Notifies an error to the email addresses set in the configuration, swallowing all exceptions.
/// </summary>
/// <param name="ex">The exception to notify.</param>
/// <param name="url">The URL that caused the error, if any.</param>
public static void NotifyError(Exception ex, string url) {
try {
string[] recipients = Settings.ErrorsEmails;
if(recipients.Length > 0) {
AsyncSendMassEmail(recipients, Settings.SenderEmail, "Error Notification", "An error occurred on " +
DateTime.Now.ToString("yyyy'/'MM'/'dd' 'HH':'mm':'ss") + " (server time) in the wiki hosted at " +
Settings.MainUrl + " - server stack trace follows.\r\n\r\n" +
(!string.IsNullOrEmpty(url) ? url + "\r\n\r\n" : "") +
ex.ToString(), false);
}
}
catch { }
}
}
}