/// <summary>Create an Email where the ViewName is derived from the name of the class.</summary>
/// <remarks>Used when defining strongly typed Email classes.</remarks>
protected Email()
{
Attachments = new List<Attachment>();
ViewName = DeriveViewNameFromClassName();
ViewData = new ViewDataDictionary(this);
ImageEmbedder = new ImageEmbedder();
}
public void ReferenceImage_returns_LinkedResource()
{
var embedder = new ImageEmbedder(StubLinkedResource);
var resource = embedder.ReferenceImage("test.png");
resource.ShouldNotBeNull();
}
public void Determine_content_type_from_JPG_file_extension()
{
var embedder = new ImageEmbedder(StubLinkedResource);
var resource = embedder.AddImage("test.jpg");
resource.ContentType.ShouldEqual(new ContentType("image/jpeg"));
}
public void Determine_content_type_from_PNG_http_file_extension()
{
var embedder = new ImageEmbedder(StubLinkedResource);
var resource = embedder.ReferenceImage("http://test.com/test.png");
resource.ContentType.ShouldBe(new ContentType("image/png"));
}
/// <summary>Create an Email where the ViewName is derived from the name of the class.</summary>
/// <remarks>Used when defining strongly typed Email classes.</remarks>
protected Email()
{
ViewName = DeriveViewNameFromClassName();
ViewData = new ViewDataDictionary(new EmptyModelMetadataProvider(), new ModelStateDictionary());
ViewData.Model = this;
ImageEmbedder = new ImageEmbedder();
}
public void Determine_content_type_from_GIF_file_extension()
{
var embedder = new ImageEmbedder(StubLinkedResource);
var resource = embedder.ReferenceImage("test.gif");
resource.ContentType.ShouldBe(new ContentType("image/gif"));
}
public void Repeated_images_use_the_same_LinkedResource()
{
var embedder = new ImageEmbedder(StubLinkedResource);
var r1 = embedder.ReferenceImage("test-a.png");
var r2 = embedder.ReferenceImage("test-a.png");
Assert.Same(r1, r2);
}
/// <summary>Create an Email where the ViewName is derived from the name of the class.</summary>
/// <remarks>Used when defining strongly typed Email classes.</remarks>
protected Email()
{
Attachments = new List <Attachment>();
ViewName = DeriveViewNameFromClassName();
ViewData = new ViewDataDictionary(this);
ImageEmbedder = new ImageEmbedder();
}
public void Can_read_image_from_http_url()
{
var embedder = new ImageEmbedder();
using (var resource = embedder.ReferenceImage("http://upload.wikimedia.org/wikipedia/commons/6/63/Wikipedia-logo.png"))
{
resource.ContentStream.Length.ShouldNotEqual(0);
}
}
public void Repeated_images_use_the_same_LinkedResource()
{
var embedder = new ImageEmbedder(StubLinkedResource);
var r1 = embedder.ReferenceImage("test-a.png");
var r2 = embedder.ReferenceImage("test-a.png");
Assert.Same(r1, r2);
}
public void Can_read_image_from_http_url()
{
var embedder = new ImageEmbedder();
using (var resource = embedder.ReferenceImage("http://upload.wikimedia.org/wikipedia/commons/6/63/Wikipedia-logo.png"))
{
resource.ContentStream.Length.ShouldNotBe(0);
}
}
/// <summary>
/// Creates a new Email, that will render the given view.
/// </summary>
/// <param name="viewName">The name of the view to render</param>
public Email(string viewName)
{
if (viewName == null) throw new ArgumentNullException("viewName");
if (string.IsNullOrWhiteSpace(viewName)) throw new ArgumentException("View name cannot be empty.", "viewName");
Attachments = new List<Attachment>();
ViewName = viewName;
ViewData = new ViewDataDictionary(this);
ImageEmbedder = new ImageEmbedder();
}
public void AddImagesToView_adds_linked_resources()
{
var embedder = new ImageEmbedder(s => new LinkedResource(new MemoryStream()));
var cid = embedder.ReferenceImage("test.png");
using (var view = AlternateView.CreateAlternateViewFromString("<img src=\"cid:" + cid.ContentId + "\" />", new ContentType("text/html")))
{
embedder.AddImagesToView(view);
view.LinkedResources.Count.ShouldEqual(1);
view.LinkedResources[0].ShouldBeSameAs(cid);
}
}
/// <summary>Create an Email where the ViewName is derived from the name of the class.</summary>
/// <remarks>Used when defining strongly typed Email classes.</remarks>
protected Email()
{
Attachments = new List <Attachment>();
ViewName = DeriveViewNameFromClassName();
#if ASPNET5
ViewData = new ViewDataDictionary(new Microsoft.AspNetCore.Mvc.ModelBinding.EmptyModelMetadataProvider(), new Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary());
ViewData.Model = this;
#else
ViewData = new ViewDataDictionary(this);
#endif
ImageEmbedder = new ImageEmbedder();
}
public void AddImagesToView_adds_linked_resources()
{
var embedder = new ImageEmbedder(s => new LinkedResource(new MemoryStream()));
var cid = embedder.ReferenceImage("test.png");
using (var view = AlternateView.CreateAlternateViewFromString("<img src=\"cid:" + cid.ContentId + "\" />", new ContentType("text/html")))
{
embedder.AddImagesToView(view);
view.LinkedResources.Count.ShouldBe(1);
view.LinkedResources[0].ShouldBeSameAs(cid);
}
}
public void ReplaceLinkedImagesWithEmbeddedImages_replaces_cid_reference()
{
var embedder = new ImageEmbedder();
var resource = embedder.ReferenceImage("postal.png");
string body = "<img src=\"cid:" + resource.ContentId + @"""/>";
var view = AlternateView.CreateAlternateViewFromString(body);
embedder.AddImagesToView(view);
string replaced = TemplateViewResult.ReplaceLinkedImagesWithEmbeddedImages(view, body);
Assert.DoesNotContain("cid:", replaced);
}
public void ReplaceLinkedImagesWithEmbeddedImages_replaces_cid_reference_with_correct_mime()
{
var embedder = new ImageEmbedder();
var resource = embedder.ReferenceImage("postal.png");
string body = "<img src=\"cid:" + resource.ContentId + @"""/>";
var view = AlternateView.CreateAlternateViewFromString(body);
embedder.AddImagesToView(view);
string replaced = EmailViewResult.ReplaceLinkedImagesWithEmbeddedImages(view, body);
Assert.Contains("data:image/png;base64,", replaced);
}
AlternateView CreateAlternativeView(Email email, string alternativeViewName)
{
var fullViewName = GetAlternativeViewName(email, alternativeViewName);
var imageEmbedder = new ImageEmbedder();
email.ViewData["Postal.ImageEmbedder"] = imageEmbedder;
var output = alternativeViewRenderer.Render(email, fullViewName);
string contentType = null;
string body = null;
using (var reader = new StringReader(output))
{
contentType = ParseHeadersForContentType(reader);
body = reader.ReadToEnd();
}
if (string.IsNullOrWhiteSpace(contentType))
{
if (alternativeViewName.Equals("text", StringComparison.OrdinalIgnoreCase))
{
contentType = "text/plain";
}
else if (alternativeViewName.Equals("html", StringComparison.OrdinalIgnoreCase))
{
contentType = "text/html";
}
else
{
throw new Exception("The 'Content-Type' header is missing from the alternative view '" + fullViewName + "'.");
}
}
var stream = CreateStreamOfBody(body);
var alternativeView = new AlternateView(stream, contentType);
if (alternativeView.ContentType.CharSet == null)
{
// Must set a charset otherwise mail readers seem to guess the wrong one!
// Strings are unicode by default in .net.
alternativeView.ContentType.CharSet = Encoding.Unicode.WebName;
// A different charset can be specified in the Content-Type header.
// e.g. Content-Type: text/html; charset=utf-8
}
imageEmbedder.PutImagesIntoView(alternativeView);
email.ViewData.Remove("Postal.ImageEmbedder");
return(alternativeView);
}
/// <summary>
/// Creates a new Email, that will render the given view.
/// </summary>
/// <param name="viewName">The name of the view to render</param>
public Email(string viewName)
{
if (viewName == null)
{
throw new ArgumentNullException("viewName");
}
if (string.IsNullOrWhiteSpace(viewName))
{
throw new ArgumentException("View name cannot be empty.", "viewName");
}
Attachments = new List <Attachment>();
ViewName = viewName;
ViewData = new ViewDataDictionary(this);
ImageEmbedder = new ImageEmbedder();
}
public void Can_read_image_from_file_system()
{
var embedder = new ImageEmbedder();
var filename = Path.GetTempFileName();
try
{
File.WriteAllBytes(filename, new byte[] { 42 });
using (var resource = embedder.ReferenceImage(filename))
{
resource.ContentStream.Length.ShouldEqual(1);
}
}
finally
{
File.Delete(filename);
}
}
public Email(string viewName, IModelMetadataProvider modelMetadataProvider)
{
if (viewName == null)
{
throw new ArgumentNullException(nameof(viewName));
}
if (string.IsNullOrWhiteSpace(viewName))
{
throw new ArgumentException("View name cannot be empty.", "viewName");
}
Attachments = new List <Attachment>();
ViewName = viewName;
ViewData = new ViewDataDictionary(modelMetadataProvider, new ModelStateDictionary());
ViewData.Model = this;
ImageEmbedder = new ImageEmbedder();
}
public void Can_read_image_from_file_system()
{
var embedder = new ImageEmbedder();
var filename = Path.GetTempFileName();
try
{
File.WriteAllBytes(filename, new byte[] { 42 });
using (var resource = embedder.ReferenceImage(filename))
{
resource.ContentStream.Length.ShouldBe(1);
}
}
finally
{
File.Delete(filename);
}
}
public Email(string viewName)
#endif
{
if (viewName == null)
{
throw new ArgumentNullException(nameof(viewName));
}
if (string.IsNullOrWhiteSpace(viewName))
{
throw new ArgumentException("View name cannot be empty.", "viewName");
}
Attachments = new List <Attachment>();
ViewName = viewName;
#if ASPNET5
_serviceProvider = serviceProvider;
var modelMetadataProvider = _serviceProvider.GetRequiredService <IModelMetadataProvider>();
ViewData = new ViewDataDictionary(new Microsoft.AspNetCore.Mvc.ModelBinding.EmptyModelMetadataProvider(), new Microsoft.AspNetCore.Mvc.ModelBinding.ModelStateDictionary());
ViewData.Model = this;
#else
ViewData = new ViewDataDictionary(this);
#endif
ImageEmbedder = new ImageEmbedder();
}
string RenderView(IView view, ViewDataDictionary viewData, ControllerContext controllerContext, ImageEmbedder imageEmbedder)
{
using (var writer = new StringWriter())
{
var viewContext = new ViewContext(controllerContext, view, viewData, new TempDataDictionary(), writer);
viewData[ImageEmbedder.ViewDataKey] = imageEmbedder;
view.Render(viewContext, writer);
viewData.Remove(ImageEmbedder.ViewDataKey);
return(writer.GetStringBuilder().ToString());
}
}
string RenderView(IView view, ViewDataDictionary viewData, ControllerContext controllerContext, ImageEmbedder imageEmbedder)
{
using (var writer = new StringWriter())
{
var viewContext = new ViewContext(controllerContext, view, viewData, new TempDataDictionary(), writer);
viewData[ImageEmbedder.ViewDataKey] = imageEmbedder;
view.Render(viewContext, writer);
viewData.Remove(ImageEmbedder.ViewDataKey);
return writer.GetStringBuilder().ToString();
}
}
public void Determine_content_type_from_GIF_file_extension()
{
var embedder = new ImageEmbedder(StubLinkedResource);
var resource = embedder.ReferenceImage("test.gif");
resource.ContentType.ShouldEqual(new ContentType("image/gif"));
}
public void Determine_content_type_from_PNG_http_file_extension()
{
var embedder = new ImageEmbedder(StubLinkedResource);
var resource = embedder.ReferenceImage("http://test.com/test.png");
resource.ContentType.ShouldEqual(new ContentType("image/png"));
}
public void ReplaceLinkedImagesWithEmbeddedImages_replaces_cid_reference_with_correct_mime()
{
var embedder = new ImageEmbedder();
var resource = embedder.ReferenceImage("postal.png");
string body = "<img src=\"cid:" + resource.ContentId + @"""/>";
var view = AlternateView.CreateAlternateViewFromString(body);
embedder.AddImagesToView(view);
string replaced = EmailViewResult.ReplaceLinkedImagesWithEmbeddedImages(view, body);
Assert.Contains("data:image/png;base64,", replaced);
}
public void ReferenceImage_returns_LinkedResource()
{
var embedder = new ImageEmbedder(StubLinkedResource);
var resource = embedder.ReferenceImage("test.png");
resource.ShouldNotBeNull();
}
public void Can_Read_From_Byte_Array()
{
var embedder = new ImageEmbedder();
using (WebClient webClient = new WebClient())
{
byte[] data = webClient.DownloadData("http://placehold.it/350x150");
var resource = embedder.ReferenceImage(data, "image/png");
resource.ShouldNotBeNull();
embedder.HasImages.ShouldBeTrue();
}
}
public void Determine_content_type_from_JPG_file_extension()
{
var embedder = new ImageEmbedder(StubLinkedResource);
var resource = embedder.AddImage("test.jpg");
resource.ContentType.ShouldEqual(new ContentType("image/jpeg"));
}
async Task <string> RenderView(IView view, ViewDataDictionary viewData, ActionContext actionContext, ImageEmbedder imageEmbedder)
{
//https://github.com/aspnet/Mvc/blob/master/src/Microsoft.AspNetCore.Mvc.ViewFeatures/ViewFeatures/ViewExecutor.cs
var response = actionContext.HttpContext.Response;
var tempDataDictionaryFactory = serviceProvider.GetRequiredService <ITempDataDictionaryFactory>();
var viewOptions = serviceProvider.GetService <Microsoft.Extensions.Options.IOptions <MvcViewOptions> >();
using (var writer = new StringWriter())
{
var tempData = tempDataDictionaryFactory.GetTempData(actionContext.HttpContext);
var viewContext = new ViewContext(actionContext, view, viewData, tempData, writer, viewOptions.Value.HtmlHelperOptions);
viewData[ImageEmbedder.ViewDataKey] = imageEmbedder;
await view.RenderAsync(viewContext);
viewData.Remove(ImageEmbedder.ViewDataKey);
await writer.FlushAsync();
return(writer.GetStringBuilder().ToString());
}
}
public void ReplaceLinkedImagesWithEmbeddedImages_replaces_cid_reference()
{
var embedder = new ImageEmbedder();
var resource = embedder.ReferenceImage("postal.png");
string body = "<img src=\"cid:" + resource.ContentId + @"""/>";
var view = AlternateView.CreateAlternateViewFromString(body);
embedder.AddImagesToView(view);
string replaced = TemplateViewResult.ReplaceLinkedImagesWithEmbeddedImages(view, body);
Assert.DoesNotContain("cid:", replaced);
}
