/// <summary>
/// This method is used by both WS and Cloud implementations of AssembleDocument to convert an AssemblyResult to an AssembleDocumentResult.
/// </summary>
/// <param name="template">The template associated with the <c>AssemblyResult</c>.</param>
/// <param name="asmResult">The <c>AssemblyResult</c> to convert.</param>
/// <param name="docType">The type of document contained in the result.</param>
/// <returns>An <c>AssembleDocumentResult</c>, which contains the same document as the <c>asmResult</c>.</returns>
internal static AssembleDocumentResult ConvertAssemblyResult(Template template, AssemblyResult asmResult, DocumentType docType)
{
AssembleDocumentResult result = null;
MemoryStream document = null;
StreamReader ansRdr = null;
List <NamedStream> supportingFiles = new List <NamedStream>();
// Create the list of pending assemblies.
IEnumerable <Template> pendingAssemblies =
asmResult.PendingAssemblies == null
? new List <Template>()
: from pa in asmResult.PendingAssemblies
select new Template(
Path.GetFileName(pa.TemplateName), template.Location.Duplicate(), pa.Switches);
for (int i = 0; i < asmResult.Documents.Length; i++)
{
switch (asmResult.Documents[i].Format)
{
case OutputFormat.Answers:
ansRdr = new StreamReader(new MemoryStream(asmResult.Documents[i].Data));
break;
case OutputFormat.JPEG:
case OutputFormat.PNG:
// If the output document is plain HTML, we might also get additional image files in the
// AssemblyResult that we need to pass on to the caller.
supportingFiles.Add(new NamedStream(asmResult.Documents[i].FileName, new MemoryStream(asmResult.Documents[i].Data)));
break;
default:
document = new MemoryStream(asmResult.Documents[i].Data);
if (docType == DocumentType.Native)
{
docType = Document.GetDocumentType(asmResult.Documents[i].FileName);
}
break;
}
}
if (document != null)
{
result = new AssembleDocumentResult(
new Document(template, document, docType, supportingFiles.ToArray(), asmResult.UnansweredVariables),
ansRdr == null ? null : ansRdr.ReadToEnd(),
pendingAssemblies.ToArray(),
asmResult.UnansweredVariables
);
}
return(result);
}
/// <summary>
/// Assemble a document from the given template, answers and settings.
/// </summary>
/// <param name="template">An instance of the Template class.</param>
/// <param name="answers">
/// Either an XML answer string, or a string containing encoded
/// interview answers as posted from a HotDocs browser interview.
/// </param>
/// <param name="settings">An instance of the AssembleDocumentResult class.</param>
/// <include file="../Shared/Help.xml" path="Help/string/param[@name='logRef']" />
/// <returns>An AssemblyResult object containing all the files and data resulting from the request.</returns>
public AssembleDocumentResult AssembleDocument(Template template, TextReader answers,
AssembleDocumentSettings settings, string logRef = "")
{
if (template == null)
{
throw new ArgumentNullException("template");
}
using (var client = new HttpClient())
{
AssembleDocumentResult adr = null;
var packageTemplateLocation = (PackageTemplateLocation)template.Location;
var packageId = packageTemplateLocation.PackageID;
var of = ConvertFormat(settings.Format);
var timestamp = DateTime.UtcNow;
var hmac = HMAC.CalculateHMAC(
SigningKey,
timestamp,
SubscriberId,
packageId,
template.FileName,
false,
logRef,
of,
settings.Settings);
var urlBuilder =
new StringBuilder().AppendFormat("{0}/assemble/{1}/{2}/{3}?" +
"format={4}&" +
"encodefilenames={5}&" +
"billingref={6}{7}",
HostAddress, SubscriberId, packageId, Uri.EscapeDataString(template.FileName),
of,
true,
Uri.EscapeDataString(logRef),
GetRetrieveFromHubParam());
if (settings.Settings != null)
{
foreach (var kv in settings.Settings)
{
urlBuilder.AppendFormat("&{0}={1}", kv.Key, kv.Value ?? "");
}
}
var request = new HttpRequestMessage
{
RequestUri = new Uri(urlBuilder.ToString()),
Method = HttpMethod.Post
};
request.Headers.Add("x-hd-date", timestamp.ToString("yyyy-MM-ddTHH:mm:ssZ"));
request.Headers.Authorization = new AuthenticationHeaderValue("basic", hmac);
var stringContent = answers == null
? new StringContent(string.Empty)
: new StringContent(answers.ReadToEnd());
request.Content = stringContent;
request.Content.Headers.TryAddWithoutValidation("Content-Type", "text/xml");
var result = client.SendAsync(request).Result;
var parser = new MultipartMimeParser();
HandleStatusCode(result);
var streamResult = result.Content.ReadAsStreamAsync().Result;
var streams = new List <MemoryStream>();
using (var resultsStream = new MemoryStream())
{
// Each part is written to a file whose name is specified in the content-disposition
// header, except for the AssemblyResult part, which has a file name of "meta0.xml",
// and is parsed into an AssemblyResult object.
parser.WritePartsToStreams(
streamResult,
h =>
{
var fileName = GetFileNameFromHeaders(h);
if (fileName == null)
{
return(Stream.Null);
}
if (fileName.Equals("meta0.xml", StringComparison.OrdinalIgnoreCase))
{
return(resultsStream);
}
var stream = new MemoryStream();
streams.Add(stream);
return(stream);
},
(new ContentType(result.Content.Headers.ContentType.ToString())).Boundary);
if (resultsStream.Position <= 0)
{
return(null);
}
resultsStream.Position = 0;
var serializer = new XmlSerializer(typeof(AssemblyResult));
var asmResult = (AssemblyResult)serializer.Deserialize(resultsStream);
if (asmResult == null)
{
return(adr);
}
for (var i = 0; i < asmResult.Documents.Length; i++)
{
asmResult.Documents[i].Data = streams[i].ToArray();
streams[i].Dispose();
}
adr = Util.ConvertAssemblyResult(template, asmResult, settings.Format);
}
return(adr);
}
}
