private static byte[] Convert(string wkhtmltopdfPath, string switches, string html)
{
switches = "-q " + switches + " -";
if (!string.IsNullOrEmpty(html))
{
switches += " -";
html = WkhtmltopdfDriver.SpecialCharsEncode(html);
}
Process process = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = Path.Combine(wkhtmltopdfPath, "wkhtmltopdf.exe"),
Arguments = switches,
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true,
RedirectStandardInput = true,
WorkingDirectory = wkhtmltopdfPath,
CreateNoWindow = true
}
};
process.Start();
if (!string.IsNullOrEmpty(html))
{
using (StreamWriter standardInput = process.StandardInput)
{
standardInput.WriteLine(html);
}
}
MemoryStream memoryStream = new MemoryStream();
using (Stream baseStream = process.StandardOutput.BaseStream)
{
byte[] array = new byte[4096];
int count;
while ((count = baseStream.Read(array, 0, array.Length)) > 0)
{
memoryStream.Write(array, 0, count);
}
}
string message = process.StandardError.ReadToEnd();
if (memoryStream.Length == 0L)
{
throw new Exception(message);
}
process.WaitForExit();
return(memoryStream.ToArray());
}
protected override byte[] CallTheDriver(ActionContext context)
{
_tempDataProvider = (ITempDataProvider)context.HttpContext.RequestServices.GetService(typeof(ITempDataProvider));
_viewEngine = (IRazorViewEngine)context.HttpContext.RequestServices.GetService(typeof(IRazorViewEngine));
if (string.IsNullOrEmpty(this.ViewName))
{
this.ViewName = context.RouteData.Values["action"].ToString();
}
byte[] result;
using (StringWriter stringWriter = new StringWriter())
{
ViewEngineResult view = this.GetView(context, this.ViewName, this.MasterName);
if (view.View == null)
{
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.AppendLine();
foreach (string current in view.SearchedLocations)
{
stringBuilder.AppendLine(current);
}
throw new InvalidOperationException(string.Format("The view '{0}' or its master was not found, searched locations: {1}", this.ViewName, stringBuilder));
}
var viewContext = new ViewContext(
context,
view.View,
new ViewDataDictionary(
metadataProvider: new EmptyModelMetadataProvider(),
modelState: new ModelStateDictionary())
{
Model = this.Model
},
new TempDataDictionary(
context.HttpContext,
this._tempDataProvider),
stringWriter,
new HtmlHelperOptions());
view.View.RenderAsync(viewContext).GetAwaiter().GetResult();
string text = stringWriter.GetStringBuilder().ToString();
string arg = string.Format("{0}://{1}", context.HttpContext.Request.Scheme, context.HttpContext.Request.Host.Value);
text = Regex.Replace(text, "<head>", string.Format("<head><base href=\"{0}\" />", arg), RegexOptions.IgnoreCase);
byte[] array = WkhtmltopdfDriver.ConvertHtml(base.WkhtmltopdfPath, base.GetConvertOptions(), text);
result = array;
}
return(result);
}
public static byte[] ConvertHtml(string wkhtmltopdfPath, string switches, string html)
{
return(WkhtmltopdfDriver.Convert(wkhtmltopdfPath, switches, html));
}
protected virtual byte[] CallTheDriver(ActionContext context)
{
string wkParams = this.GetWkParams(context);
return(WkhtmltopdfDriver.Convert(this.WkhtmltopdfPath, wkParams));
}
