public override ConversionEngine ConstructFileEngine(string fileName, byte[] file,
UnsupportedTypeHandlingEnum unsupportedHandling)
{
if (string.IsNullOrEmpty(fileName))
{
throw new MissingSourceException("File not specified.");
}
ConversionEngine engine = null;
switch (Path.GetExtension(fileName).ToLower())
{
case ".pdf":
engine = new PdfEngine(file);
break;
case ".png":
case ".gif":
case ".jpeg":
case ".jpg":
case ".bmp":
engine = new WebKitImageEngine(fileName, file);
break;
case ".html":
case ".htm":
engine = new WebKitFileEngine(fileName, file);
break;
case ".odt":
case ".doc":
case ".docx":
case ".xls":
case ".xlsx":
case ".ppt":
case ".pptx":
case ".txt":
case ".rtf":
engine = new LibreOfficeConversionEngine(fileName, file);
break;
default:
switch (unsupportedHandling)
{
case UnsupportedTypeHandlingEnum.Error:
throw new UnsupportedSourceException("Unsupported file type.", Path.GetExtension(fileName));
case UnsupportedTypeHandlingEnum.NoPage:
engine = new NullEngine();
break;
case UnsupportedTypeHandlingEnum.PageWithErrorText:
engine = new UnsupportedTypeEngine(fileName);
break;
default:
throw new InvalidEnumArgumentException("unsupportedHandling", (int)unsupportedHandling, typeof(UnsupportedTypeHandlingEnum));
}
break;
}
return engine;
}
public override ConversionEngine ConstructFileEngine(string fileName, byte[] file,
UnsupportedTypeHandlingEnum unsupportedHandling)
{
if (string.IsNullOrEmpty(fileName))
{
throw new MissingSourceException("File not specified.");
}
ConversionEngine engine = null;
switch (Path.GetExtension(fileName).ToLower())
{
case ".pdf":
engine = new PdfEngine(file);
break;
case ".png":
case ".gif":
case ".jpeg":
case ".jpg":
case ".bmp":
engine = new WebKitImageEngine(fileName, file);
break;
case ".html":
case ".htm":
engine = new WebKitFileEngine(fileName, file);
break;
case ".odt":
case ".doc":
case ".docx":
case ".xls":
case ".xlsx":
case ".ppt":
case ".pptx":
case ".txt":
case ".rtf":
engine = new LibreOfficeConversionEngine(fileName, file);
break;
default:
switch (unsupportedHandling)
{
case UnsupportedTypeHandlingEnum.Error:
throw new UnsupportedSourceException("Unsupported file type.", Path.GetExtension(fileName));
case UnsupportedTypeHandlingEnum.NoPage:
engine = new NullEngine();
break;
case UnsupportedTypeHandlingEnum.PageWithErrorText:
engine = new UnsupportedTypeEngine(fileName);
break;
default:
throw new InvalidEnumArgumentException("unsupportedHandling", (int)unsupportedHandling, typeof(UnsupportedTypeHandlingEnum));
}
break;
}
return(engine);
}
protected override void Convert(ConversionOptions options)
{
string inputFile = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString() + Path.GetExtension(m_sourceFileName));
File.WriteAllBytes(inputFile, m_sourceFile);
AddFileToSweep(inputFile);
Process conversionProcess = new Process();
conversionProcess.StartInfo.UseShellExecute = false;
conversionProcess.StartInfo.ErrorDialog = false;
conversionProcess.StartInfo.CreateNoWindow = true;
conversionProcess.StartInfo.RedirectStandardOutput = true;
conversionProcess.StartInfo.RedirectStandardError = true;
conversionProcess.StartInfo.WorkingDirectory = Path.GetDirectoryName(inputFile);
conversionProcess.StartInfo.FileName = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, LIBREOFFICE_RELATIVE_PATH);
conversionProcess.StartInfo.Arguments += "--headless -convert-to pdf " + Path.GetFileName(inputFile);
string outputFile = Path.Combine(Path.GetDirectoryName(inputFile), string.Concat(Path.GetFileNameWithoutExtension(inputFile), ".pdf"));
AddFileToSweep(outputFile);
string standardErrorOutput = string.Empty;
try
{
lock (m_processLock) //only 1 instance of libre office can be running at a time
{
s_logger.Debug(string.Format("Starting process: {0} with arguments: {1}", LIBREOFFICE_RELATIVE_PATH, conversionProcess.StartInfo.Arguments));
conversionProcess.Start();
standardErrorOutput = conversionProcess.StandardError.ReadToEnd();
int timeoutMilliseconds = options.TimeoutInSeconds > 0 ? options.TimeoutInSeconds * 1000 : DEFAULT_TIMEOUT_MILLISECONDS;
if (!conversionProcess.WaitForExit(timeoutMilliseconds))
{
conversionProcess.Kill();
throw new ConversionTimeoutException(string.Format("Conversion timeout after {0} milliseconds.", timeoutMilliseconds.ToString()), standardErrorOutput, Path.GetExtension(m_sourceFileName), this);
}
else if (conversionProcess.ExitCode != 0)
{
string message = "Error when running conversion process: " + LIBREOFFICE_RELATIVE_PATH;
throw new ConversionEngineException(message, standardErrorOutput, Path.GetExtension(m_sourceFileName), this);
}
}
this.OutputFile = File.ReadAllBytes(outputFile);
if (conversionProcess.ExitCode != 0)
{
throw new ConversionEngineException("Error when running conversion process: " + LIBREOFFICE_RELATIVE_PATH, standardErrorOutput, Path.GetExtension(m_sourceFileName), this);
}
if (!File.Exists(outputFile))
{
throw new ConversionEngineException("Output Pdf file missing after conversion.", standardErrorOutput, Path.GetExtension(m_sourceFileName), this);
}
else
{
this.OutputFile = File.ReadAllBytes(outputFile);
if (options.Orientation == PageOrientation.Landscape)
{
//change Orientation
using (PdfEngine engine = new PdfEngine(this.OutputFile, true))
{
engine.ConvertToPdf(options);
this.OutputFile = engine.OutputFile;
}
}
}
}
catch (Exception ex)
{
throw new ConversionEngineException("Error when converting Pdf with process: " + LIBREOFFICE_RELATIVE_PATH, standardErrorOutput, Path.GetExtension(m_sourceFileName), this, ex);
}
}
protected override void Convert(ConversionOptions options)
{
string inputFile = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString() + Path.GetExtension(m_sourceFileName));
File.WriteAllBytes(inputFile, m_sourceFile);
AddFileToSweep(inputFile);
Process conversionProcess = new Process();
conversionProcess.StartInfo.UseShellExecute = false;
conversionProcess.StartInfo.ErrorDialog = false;
conversionProcess.StartInfo.CreateNoWindow = true;
conversionProcess.StartInfo.RedirectStandardOutput = true;
conversionProcess.StartInfo.RedirectStandardError = true;
conversionProcess.StartInfo.WorkingDirectory = Path.GetDirectoryName(inputFile);
conversionProcess.StartInfo.FileName = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, LIBREOFFICE_RELATIVE_PATH);
conversionProcess.StartInfo.Arguments += "--headless -convert-to pdf " + Path.GetFileName(inputFile);
string outputFile = Path.Combine(Path.GetDirectoryName(inputFile), string.Concat(Path.GetFileNameWithoutExtension(inputFile), ".pdf"));
AddFileToSweep(outputFile);
string standardErrorOutput = string.Empty;
try
{
lock (m_processLock) //only 1 instance of libre office can be running at a time
{
s_logger.Debug(string.Format("Starting process: {0} with arguments: {1}", LIBREOFFICE_RELATIVE_PATH, conversionProcess.StartInfo.Arguments));
conversionProcess.Start();
standardErrorOutput = conversionProcess.StandardError.ReadToEnd();
int timeoutMilliseconds = options.TimeoutInSeconds > 0 ? options.TimeoutInSeconds * 1000 : DEFAULT_TIMEOUT_MILLISECONDS;
if (!conversionProcess.WaitForExit(timeoutMilliseconds))
{
conversionProcess.Kill();
throw new ConversionTimeoutException(string.Format("Conversion timeout after {0} milliseconds.", timeoutMilliseconds.ToString()), standardErrorOutput, Path.GetExtension(m_sourceFileName), this);
}
else if (conversionProcess.ExitCode != 0)
{
string message = "Error when running conversion process: " + LIBREOFFICE_RELATIVE_PATH;
throw new ConversionEngineException(message, standardErrorOutput, Path.GetExtension(m_sourceFileName), this);
}
}
this.OutputFile = File.ReadAllBytes(outputFile);
if (conversionProcess.ExitCode != 0)
{
throw new ConversionEngineException("Error when running conversion process: " + LIBREOFFICE_RELATIVE_PATH, standardErrorOutput, Path.GetExtension(m_sourceFileName), this);
}
if (!File.Exists(outputFile))
{
throw new ConversionEngineException("Output Pdf file missing after conversion.", standardErrorOutput, Path.GetExtension(m_sourceFileName), this);
}
else
{
this.OutputFile = File.ReadAllBytes(outputFile);
if (options.Orientation == PageOrientation.Landscape)
{
//change Orientation
using (PdfEngine engine = new PdfEngine(this.OutputFile, true))
{
engine.ConvertToPdf(options);
this.OutputFile = engine.OutputFile;
}
}
}
}
catch (Exception ex)
{
throw new ConversionEngineException("Error when converting Pdf with process: " + LIBREOFFICE_RELATIVE_PATH, standardErrorOutput, Path.GetExtension(m_sourceFileName), this, ex);
}
}