public static void ConvertHtmlToPdf(PdfDocument document, PdfConvertEnvironment environment, PdfOutput woutput)
{
if (environment == null)
environment = Environment;
String outputPdfFilePath;
bool delete = false;
if (woutput.OutputFilePath != null)
outputPdfFilePath = woutput.OutputFilePath;
else
{
outputPdfFilePath = Path.Combine(environment.TempFolderPath, String.Format("{0}.pdf", Guid.NewGuid()));
delete = true;
}
if (!File.Exists(environment.WkHtmlToPdfPath))
throw new PdfConvertException(String.Format("File '{0}' not found. Make sure wkhtmltopdf files exist.", environment.WkHtmlToPdfPath));
var paramsBuilder = BuildParameters(document, outputPdfFilePath);
var si = new ProcessStartInfo
{
CreateNoWindow = !environment.Debug,
FileName = environment.WkHtmlToPdfPath,
Arguments = paramsBuilder.ToString(),
UseShellExecute = false,
RedirectStandardError = !environment.Debug
};
try
{
using (var process = new Process())
{
ProcessHtmlToPdf(si, process, environment, document);
if (!File.Exists(outputPdfFilePath))
throw new PdfConvertException(String.Format("Html to PDF conversion of '{0}' failed. Reason: Output file '{1}' not found.", document.Url, outputPdfFilePath));
WriteOutput(woutput, outputPdfFilePath);
ExecuteCallback(document, woutput, outputPdfFilePath);
}
}
finally
{
if (delete && File.Exists(outputPdfFilePath))
File.Delete(outputPdfFilePath);
}
}
private static void WriteOutput(PdfOutput woutput, string outputPdfFilePath)
{
if (woutput.OutputStream != null)
{
using (Stream fs = new FileStream(outputPdfFilePath, FileMode.Open))
{
var buffer = new byte[32*1024];
int read;
while ((read = fs.Read(buffer, 0, buffer.Length)) > 0)
woutput.OutputStream.Write(buffer, 0, read);
}
}
}
public static void ConvertHtmlToPdf(PdfDocument document, PdfOutput output)
{
ConvertHtmlToPdf(document, null, output);
}
private static void ExecuteCallback(PdfDocument document, PdfOutput woutput, string outputPdfFilePath)
{
if (woutput.OutputCallback != null)
{
woutput.OutputCallback(document, File.ReadAllBytes(outputPdfFilePath));
}
}