/// <summary>
/// Reads the input from the POST requests and creates the appropriate job instance
/// </summary>
/// <param name="type"></param>
/// <param name="readStream"></param>
/// <param name="content"></param>
/// <param name="formatterLogger"></param>
/// <returns></returns>
public override async Task <object> ReadFromStreamAsync(Type type, Stream readStream, HttpContent content, IFormatterLogger formatterLogger)
{
if (content == null)
{
return(null);
}
var tempStorage = Path.GetTempPath();
var tempStorageProvider = new MultipartFormDataStreamProvider(tempStorage);
var msp = await content.ReadAsMultipartAsync(tempStorageProvider);
Job job = null;
if (type == typeof(AccessibleConversionJob))
{
job = new AccessibleConversionJob
{
TargetDocumentFormat = (OutputFileFormatEnum)Enum.Parse(typeof(OutputFileFormatEnum), msp.FormData["targetdocumentformat"])//Convert.ToInt32(msp.FormData["targetformat"]),
};
if (msp.FormData.AllKeys.Contains("priority"))
{
((AccessibleConversionJob)job).Priority = (PriorityEnum)Enum.Parse(typeof(PriorityEnum), msp.FormData["priority"]);
}
else
{
((AccessibleConversionJob)job).Priority = PriorityEnum.P_Normal;
}
}
else if (type == typeof(AudioJob))
{
job = new AudioJob()
{
AudioLanguage = (Language)Enum.Parse(typeof(Language), msp.FormData["audiolanguage"]),
SpeedOptions = (AudioSpeed)Enum.Parse(typeof(AudioSpeed), msp.FormData["speedoptions"]),
FormatOptions = (AudioFormat)Enum.Parse(typeof(AudioFormat), msp.FormData["formatoptions"])
};
if (msp.FormData.AllKeys.Contains("voicepropriety"))
{
string[] props = msp.FormData["voicepropriety"].Split(':');
List <VoicePropriety> propList = new List <VoicePropriety>();
foreach (string prop in props)
{
propList.Add((VoicePropriety)Enum.Parse(typeof(VoicePropriety), prop));
}
((AudioJob)job).VoicePropriety = propList;
}
else
{
((AudioJob)job).VoicePropriety = new List <VoicePropriety>()
{
VoicePropriety.None
}
};
}
else if (type == typeof(BrailleJob))
{
job = new BrailleJob
{
BrailleFormat = (BrailleFormat)Enum.Parse(typeof(BrailleFormat), msp.FormData["brailleformat"]),
BrailleLanguage = (Language)Enum.Parse(typeof(Language), msp.FormData["language"]),
Contraction = (BrailleContraction)Enum.Parse(typeof(BrailleContraction), msp.FormData["contraction"]),
OutputFormat = (OutputFormat)Enum.Parse(typeof(OutputFormat), msp.FormData["outputformat"]),
ConversionPath = (ConversionPath)int.Parse(msp.FormData["conversionpath"]),
CharactersPerLine = int.Parse(msp.FormData["charactersperline"]),
LinesPerPage = int.Parse(msp.FormData["linesperpage"])
};
if (msp.FormData.AllKeys.Contains("pagenumbering"))
{
((BrailleJob)job).PageNumbering = (PageNumbering)int.Parse(msp.FormData["pagenumbering"]);
}
}
else if (type == typeof(DaisyJob))
{
job = new DaisyJob
{
DaisyOutput = (DaisyOutput)Enum.Parse(typeof(DaisyOutput), msp.FormData["daisyoutput"])
};
}
else if (type == typeof(EBookJob))
{
job = new EBookJob
{
EbookFormat = (EbookFormat)Enum.Parse(typeof(EbookFormat), msp.FormData["format"])
};
if (msp.FormData.AllKeys.Contains("basefontsize"))
{
((EBookJob)job).BaseFontSize = (EbookBaseFontSize)Enum.Parse(typeof(EbookBaseFontSize), msp.FormData["basefontsize"]);
}
}
else if (type == typeof(HTMLtoPDFJob))
{
job = new HTMLtoPDFJob
{
paperSize = (PaperSize)Enum.Parse(typeof(PaperSize), msp.FormData["size"])
};
}
else if (type == typeof(MSOfficeJob))
{
job = new MSOfficeJob
{
MSOfficeOutput = (MSOfficeOutput)Enum.Parse(typeof(MSOfficeOutput), msp.FormData["msofficeoutput"])
};
if (msp.FormData.AllKeys.Contains("subtitlelangauge") && msp.FormData.AllKeys.Contains("subtitleformat"))
{
((MSOfficeJob)job).SubtitleLangauge = msp.FormData["subtitlelangauge"];
((MSOfficeJob)job).SubtitleFormat = msp.FormData["subtitleformat"];
}
}
else if (type == typeof(OcrConversionJob))
{
job = new OcrConversionJob
{
OcrLanguage = (Language)Enum.Parse(typeof(Language), msp.FormData["language"]),
HasTable = false
};
if (msp.FormData.AllKeys.Contains("hastable"))
{
((OcrConversionJob)job).HasTable = bool.Parse(msp.FormData["hastable"]);
}
}
else if (type == typeof(HTMLToTextJob))
{
job = new HTMLToTextJob();
}
else if (type == typeof(AmaraSubtitleJob))
{
job = new AmaraSubtitleJob()
{
SubtitleLangauge = msp.FormData["language"],
SubtitleFormat = msp.FormData["format"]
};
if (msp.FormData.AllKeys.Contains("videourl"))
{
((AmaraSubtitleJob)job).VideoUrl = msp.FormData["videourl"];
}
}
else if (type == typeof(DocumentStructureJob))
{
job = new DocumentStructureJob()
{
};
}
else if (type == typeof(TranslationJob))
{
job = new TranslationJob()
{
SourceLanguage = msp.FormData["sourcelanguage"],
TargetLanguage = msp.FormData["targetlanguage"]
};
}
else if (type == typeof(SignLanguageJob))
{
job = new SignLanguageJob()
{
SourceTextLanguage = msp.FormData["sourcetextlanguage"],
TargetSignLanguage = msp.FormData["targetsignlanguage"]
};
}
if (job == null)
{
return(null);
}
else
{
if (msp.FileData.Count > 0)
{
job.FileContent = File.ReadAllBytes(msp.FileData[0].LocalFileName);
string fileName = msp.FileData[0].Headers.ContentDisposition.FileName.Replace("\"", "").ToString();
job.FileName = fileName.Substring(0, fileName.LastIndexOf("."));
job.FileExtension = fileName.Substring(fileName.LastIndexOf(".") + 1);
job.MimeType = msp.FileData[0].Headers.ContentType.MediaType;
}
else if (msp.FormData["lastjobid"] != null)
{
//1) check if a guid is present and exists in the database. 2) get the byte content from the database and use it in the new job
Guid previousJobId = Guid.Parse(msp.FormData["lastjobid"]);
RoboBrailleDataContext _context = new RoboBrailleDataContext();
Job previousJob = RoboBrailleProcessor.CheckForJobInDatabase(previousJobId, _context);
if (previousJob != null)
{
job.FileContent = previousJob.ResultContent;
job.FileName = previousJob.FileName;
job.FileExtension = previousJob.ResultFileExtension;
job.MimeType = previousJob.ResultMimeType;
}
else
{
return(null);
}
}
else
{
//if not assume it is a URL
if (!String.IsNullOrWhiteSpace(msp.FormData["FileContent"]))
{
string sorh = msp.FormData["FileContent"];
Uri uriResult;
bool result = Uri.TryCreate(sorh, UriKind.Absolute, out uriResult) && (uriResult.Scheme == Uri.UriSchemeHttp || uriResult.Scheme == Uri.UriSchemeHttps);
if (result)
{
var webRequest = WebRequest.Create(uriResult);
using (var response = webRequest.GetResponse())
using (var httpcontent = response.GetResponseStream())
using (var reader = new StreamReader(httpcontent))
{
job.FileContent = Encoding.UTF8.GetBytes(reader.ReadToEnd());
job.FileName = DateTime.Now.Ticks + "-RoboFile";
job.FileExtension = ".html";
job.MimeType = "text/html";
}
}
else //else it must be a file
{
job.FileContent = Encoding.UTF8.GetBytes(sorh);
job.FileName = DateTime.Now.Ticks + "-RoboFile";
job.FileExtension = ".txt";
job.MimeType = "text/plain";
}
}
else
{
//it's a video job
}
}
if (type != typeof(AmaraSubtitleJob))
{
job.InputFileHash = RoboBrailleProcessor.GetMD5Hash(job.FileContent);
}
job.Status = JobStatus.Started;
job.SubmitTime = DateTime.Now;
return(job);
}
}
/// <summary>
/// Consider two output types:
/// .txt if pptx doesn't contain videos
/// .zip if it contains videos (a .txt file + the video files)
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public async Task <Dictionary <int, string> > ProcessVideoParts(string source, MSOfficeJob job, string tempDirectory)
{
Dictionary <int, string> TextContent = new Dictionary <int, string>();
int index = 1;
using (PresentationDocument ppt = PresentationDocument.Open(source, false))
{
// Get the relationship ID of the first slide.
PresentationPart part = ppt.PresentationPart;
OpenXmlElementList slideIds = part.Presentation.SlideIdList.ChildElements;
foreach (SlideId slideID in slideIds)
{
//get the right content according to type. for now only text is getting through
string relId = slideID.RelationshipId;
// Get the slide part from the relationship ID.
SlidePart slide = (SlidePart)part.GetPartById(relId);
//extract the videos and put placeholders
IEnumerable <A.VideoFromFile> videos = slide.Slide.Descendants <A.VideoFromFile>();
foreach (A.VideoFromFile vid in videos)
{
string videoRelId = vid.Link;
ReferenceRelationship rel = slide.GetReferenceRelationship(videoRelId);
Uri uri = rel.Uri;
var filename = uri.ToString().Split('/').Last();
var s = ppt.Package.GetPart(uri).GetStream();
byte[] videoBytes = null;
using (BinaryReader br = new BinaryReader(s))
{
videoBytes = br.ReadBytes((int)s.Length);
}
//write video to result directory
File.WriteAllBytes(Path.Combine(tempDirectory, filename), videoBytes);
//send to amara
string langauge = "en-us";
if (ppt.PackageProperties.Language != null)
{
langauge = ppt.PackageProperties.Language;
}
AmaraSubtitleJob vj = new AmaraSubtitleJob()
{
SubmitTime = DateTime.Now,
FinishTime = DateTime.Now,
Status = JobStatus.Started,
MimeType = "video/" + filename.Substring(filename.LastIndexOf('.') + 1), //define this properly
User = job.User,
UserId = job.UserId,
DownloadCounter = 0,
FileContent = videoBytes,
InputFileHash = RoboBrailleProcessor.GetMD5Hash(videoBytes),
SubtitleFormat = job.SubtitleFormat,
SubtitleLangauge = job.SubtitleLangauge,
FileName = job.Id.ToString() + "-" + filename.Substring(0, filename.LastIndexOf('.')),
FileExtension = filename.Substring(filename.LastIndexOf('.') + 1)
};
//retrieve the message from amara
byte[] filebytes = null;
Guid subtitleJobId = vcr.SubmitWorkItem(vj).Result;
while (vcr.GetWorkStatus(subtitleJobId) == 2)
{
await Task.Delay(2000);
}
filebytes = vcr.GetResultContents(subtitleJobId).getFileContents();
File.WriteAllBytes(Path.Combine(tempDirectory, filename.Substring(0, filename.LastIndexOf('.')) + vj.ResultFileExtension), filebytes);
slide.Slide.CommonSlideData.ShapeTree.AppendChild(
new ShapeProperties(
new TextBody(
new A.Paragraph(
new A.Run(
new A.Text("Video file name = " + filename + " subtitle attached to video has id: " + vj.Id.ToString())
)))));
}
// Build a StringBuilder object.
StringBuilder paragraphText = new StringBuilder();
// Get the inner text of the slide:
IEnumerable <A.Text> texts = slide.Slide.Descendants <A.Text>();
foreach (A.Text text in texts)
{
if (text.Text.Length > 1)
{
paragraphText.Append(text.Text + " ");
}
else
{
paragraphText.Append(text.Text);
}
}
string slideText = paragraphText.ToString();
TextContent.Add(index, slideText);
index++;
}
//until now there are: video files + subtitle files
//at the end there will be: a txt file + video files + subtitle files (all zipped up)
}
return(TextContent);
}