private void TemplateParameterPopulator(EmailTemplateProcessor processor)
{
var jTemplate = new JObject();
foreach (var item in processor.Items)
{
string n = item.GetType().Name;
if (n.EndsWith("Model"))
{
n = n.Substring(0, n.Length - "Model".Length);
}
else if (n.EndsWith("Object"))
{
n = n.Substring(0, n.Length - "Object".Length);
}
jTemplate.Add(n, Newtonsoft.Json.Linq.JObject.Parse(JsonConvert.SerializeObject(item)));
}
// walk through the injected custom parameters, if any
if (processor.CustomParameters != null)
{
//remove any subject or body parameters that are also in the custom parameters
processor.SubjParameters.RemoveWhere(c => processor.CustomParameters.Keys.Contains(c));
processor.BodyParameters.RemoveWhere(c => processor.CustomParameters.Keys.Contains(c));
foreach (var item in processor.CustomParameters.Where(c => !string.IsNullOrWhiteSpace(c.Value)))
{
processor.Template.UpdateSubject(processor.Template.Subject.Replace("{" + item.Key + "}", item.Value));
processor.Template.UpdateText(processor.Template.Text.Replace("{" + item.Key + "}", item.Value));
}
}
// walk through the injected Items for the subject
foreach (var key in processor.SubjParameters)
{
var token = jTemplate.SelectToken(key);
if (token != null)
{
processor.Template.UpdateSubject(processor.Template.Subject.Replace("{" + key + "}", token.ToString()));
}
else
{
processor.AddError($"Value for subject parameter '{key}' is null");
}
}
// walk through the injected Items for the body
foreach (var key in processor.BodyParameters)
{
var token = jTemplate.SelectToken(key);
if (token != null)
{
processor.Template.UpdateText(processor.Template.Text.Replace("{" + key + "}", token.ToString()));
}
else
{
processor.AddError($"Value for html/body parameter '{key}' is null");
}
}
}
public bool TryProcessTemplate(out EmailTemplateProcessor processor, EmailTemplateId templateId, Dictionary <string, string> parameters, params object[] items)
{
var t = this.DataManager.GetEmailTemplate(templateId);
processor = null;
if (t == null)
{
processor = new EmailTemplateProcessor("No template found for: " + templateId.ToString());
}
else
{
var url = this.BaseUrl();
if (parameters == null)
{
parameters = new Dictionary <string, string>();
}
UserModel user = null;
if (items != null && items.Length > 0)
{
user = items.FirstOrDefault(c => c is UserModel) as UserModel;
}
//DisplayName is used in emails as a safety valve to identify who the user is...
if (user != null)
{
parameters.TryAdd("DisplayName", user.Name ?? string.Empty);
}
else
{
parameters.TryAdd("DisplayName", "");
}
parameters.TryAdd("HomeUrl", url);
parameters.TryAdd("LoginUrl", url + "login");
parameters.TryAdd("SignupUrl", url + "signup");
parameters.TryAdd("LogoUrl", url + "statics/logo.png");
parameters.TryAdd("PhishingUrl", url + "phishing");
//get the html containing the master layout for all emails
//string layout = string.Copy( this.DataManager.EmailLayout.Text );
//processor = new EmailTemplateProcessor( t, layout, parameters, items );
processor = new EmailTemplateProcessor(t, parameters, items);
//var matches = Regex.Matches("Test {Token1} {Token 2}", @"{([^{}]*)");
var regex = new System.Text.RegularExpressions.Regex(@"{([^{}]*)", System.Text.RegularExpressions.RegexOptions.Multiline);
try
{
TemplateParameterDiscoverer(regex.Match(processor.Template.Subject), processor.SubjParameters);
}
catch (Exception ex)
{
processor.AddError("Error parsing subject parameters: " + ex.ToString());
}
try
{
TemplateParameterDiscoverer(regex.Match(processor.Template.Text), processor.BodyParameters);
}
catch (Exception ex)
{
processor.AddError("Error parsing html parameters: " + ex.ToString());
}
try
{
TemplateParameterPopulator(processor);
}
catch (Exception ex)
{
processor.AddError("Error populating parameters: " + ex.ToString());
}
}
return(processor.Successful);
}
