private static object FromRtfToText(ICoreItem coreItem, BodyWriteConfiguration configuration, Stream bodyStream, bool createWriter)
{
Stream stream = null;
object obj = null;
try
{
stream = new BodyCharsetDetectionStream(bodyStream, null, coreItem, BodyStreamFormat.Text, ConvertUtils.UnicodeCharset, configuration.TargetCharset, configuration.TargetCharsetFlags, null, false);
stream = new ConverterStream(stream, new RtfToText
{
OutputEncoding = ConvertUtils.UnicodeEncoding,
Header = configuration.InjectPrefix,
Footer = configuration.InjectSuffix,
HeaderFooterFormat = configuration.InjectionHeaderFooterFormat
}, ConverterStreamAccess.Write);
obj = BodyWriteDelegates.GetRtfDecompressorOrUnicodeWriter(stream, createWriter);
}
finally
{
if (obj == null && stream != null)
{
BodyWriteDelegates.SafeDisposeStream(stream);
}
}
return(obj);
}
private static object FromTextToHtml(ICoreItem coreItem, BodyWriteConfiguration configuration, Stream bodyStream, bool createWriter)
{
Stream stream = null;
object obj = null;
try
{
HtmlWriteConverterStream htmlWriteConverterStream = new HtmlWriteConverterStream(bodyStream, new TextToHtml
{
InputEncoding = configuration.SourceEncoding,
Header = configuration.InjectPrefix,
Footer = configuration.InjectSuffix,
HeaderFooterFormat = configuration.InjectionHeaderFooterFormat,
HtmlTagCallback = configuration.InternalHtmlTagCallback,
FilterHtml = configuration.FilterHtml
});
stream = htmlWriteConverterStream;
stream = new BodyCharsetDetectionStream(stream, new BodyCharsetDetectionStream.DetectCharsetCallback(htmlWriteConverterStream.SetCharset), coreItem, BodyStreamFormat.Text, configuration.SourceCharset, configuration.TargetCharset, configuration.TargetCharsetFlags, BodyWriteDelegates.GetExtraData(configuration), false);
obj = BodyWriteDelegates.GetStreamOrUnicodeWriter(stream, createWriter);
}
finally
{
if (obj == null && stream != null)
{
BodyWriteDelegates.SafeDisposeStream(stream);
}
}
return(obj);
}
private static object FromTextToRtf(ICoreItem coreItem, BodyWriteConfiguration configuration, Stream bodyStream, bool createWriter)
{
Stream stream = null;
object obj = null;
try
{
stream = new ConverterStream(bodyStream, new RtfToRtfCompressed(), ConverterStreamAccess.Write);
stream = new ConverterStream(stream, new TextToRtf
{
InputEncoding = configuration.SourceEncoding,
Header = configuration.InjectPrefix,
Footer = configuration.InjectSuffix,
HeaderFooterFormat = configuration.InjectionHeaderFooterFormat
}, ConverterStreamAccess.Write);
stream = new BodyCharsetDetectionStream(stream, null, coreItem, BodyStreamFormat.Text, configuration.SourceCharset, configuration.TargetCharset, configuration.TargetCharsetFlags, BodyWriteDelegates.GetExtraData(configuration), false);
obj = BodyWriteDelegates.GetStreamOrUnicodeWriter(stream, createWriter);
}
finally
{
if (obj == null && stream != null)
{
BodyWriteDelegates.SafeDisposeStream(stream);
}
}
return(obj);
}
private static object FromTextToText(ICoreItem coreItem, BodyWriteConfiguration configuration, Stream bodyStream, bool createWriter)
{
Stream stream = null;
object obj = null;
try
{
stream = new BodyCharsetDetectionStream(bodyStream, null, coreItem, BodyStreamFormat.Text, ConvertUtils.UnicodeCharset, configuration.TargetCharset, configuration.TargetCharsetFlags, null, false);
if (!createWriter && !configuration.IsContentTransformationNeeded(coreItem))
{
obj = stream;
}
else
{
TextToText textToText;
if (string.IsNullOrEmpty(configuration.InjectPrefix) && string.IsNullOrEmpty(configuration.InjectSuffix))
{
textToText = new TextToText(TextToTextConversionMode.ConvertCodePageOnly);
}
else
{
textToText = new TextToText();
}
textToText.InputEncoding = configuration.SourceEncoding;
textToText.OutputEncoding = ConvertUtils.UnicodeEncoding;
if (!string.IsNullOrEmpty(configuration.InjectPrefix) || !string.IsNullOrEmpty(configuration.InjectSuffix))
{
textToText.Header = configuration.InjectPrefix;
textToText.Footer = configuration.InjectSuffix;
textToText.HeaderFooterFormat = configuration.InjectionHeaderFooterFormat;
}
obj = BodyWriteDelegates.GetConverterStreamOrWriter(stream, textToText, createWriter);
}
}
finally
{
if (obj == null && stream != null)
{
BodyWriteDelegates.SafeDisposeStream(stream);
}
}
return(obj);
}
private static object FromHtmlToRtf(ICoreItem coreItem, BodyWriteConfiguration configuration, Stream bodyStream, bool createWriter)
{
Stream stream = null;
object obj = null;
try
{
stream = new ConverterStream(bodyStream, new RtfToRtfCompressed(), ConverterStreamAccess.Write);
stream = new BodyCharsetDetectionStream(stream, null, coreItem, BodyStreamFormat.RtfUncompressed, null, configuration.TargetCharset, configuration.TargetCharsetFlags, null, false);
HtmlToRtf htmlToRtf = new HtmlToRtf();
htmlToRtf.InputEncoding = configuration.SourceEncoding;
htmlToRtf.DetectEncodingFromMetaTag = false;
htmlToRtf.Header = configuration.InjectPrefix;
htmlToRtf.Footer = configuration.InjectSuffix;
htmlToRtf.HeaderFooterFormat = configuration.InjectionHeaderFooterFormat;
if (configuration.ImageRenderingCallback != null)
{
TextConvertersInternalHelpers.SetImageRenderingCallback(htmlToRtf, configuration.ImageRenderingCallback);
}
TextConverter converter = htmlToRtf;
if (configuration.FilterHtml || configuration.InternalHtmlTagCallback != null)
{
stream = new ConverterStream(stream, htmlToRtf, ConverterStreamAccess.Write);
converter = new HtmlToHtml
{
InputEncoding = configuration.SourceEncoding,
OutputEncoding = configuration.SourceEncoding,
DetectEncodingFromMetaTag = false,
FilterHtml = configuration.FilterHtml,
HtmlTagCallback = configuration.InternalHtmlTagCallback
};
}
obj = BodyWriteDelegates.GetConverterStreamOrWriter(stream, converter, createWriter);
}
finally
{
if (obj == null && stream != null)
{
BodyWriteDelegates.SafeDisposeStream(stream);
}
}
return(obj);
}
private static object FromHtmlToHtml(ICoreItem coreItem, BodyWriteConfiguration configuration, Stream bodyStream, bool createWriter)
{
Stream stream = null;
object obj = null;
try
{
if (!createWriter && configuration.SourceCharset == null)
{
obj = bodyStream;
}
else
{
HtmlToHtml htmlToHtml = new HtmlToHtml();
htmlToHtml.InputEncoding = configuration.SourceEncoding;
htmlToHtml.DetectEncodingFromMetaTag = configuration.TrustHtmlMetaTag;
htmlToHtml.FilterHtml = configuration.FilterHtml;
htmlToHtml.HtmlTagCallback = configuration.InternalHtmlTagCallback;
htmlToHtml.Header = configuration.InjectPrefix;
htmlToHtml.Footer = configuration.InjectSuffix;
htmlToHtml.HeaderFooterFormat = configuration.InjectionHeaderFooterFormat;
bool canSkipConversionOnMatchingCharset = !configuration.IsContentTransformationNeeded(coreItem);
HtmlWriteConverterStream htmlWriteConverterStream = new HtmlWriteConverterStream(bodyStream, htmlToHtml, canSkipConversionOnMatchingCharset);
stream = htmlWriteConverterStream;
stream = new BodyCharsetDetectionStream(htmlWriteConverterStream, new BodyCharsetDetectionStream.DetectCharsetCallback(htmlWriteConverterStream.SetCharset), coreItem, BodyStreamFormat.Html, configuration.SourceCharset, configuration.TargetCharset, configuration.TargetCharsetFlags, BodyWriteDelegates.GetExtraData(configuration), configuration.TrustHtmlMetaTag);
obj = BodyWriteDelegates.GetStreamOrUnicodeWriter(stream, createWriter);
}
}
finally
{
if (obj == null && stream != null)
{
BodyWriteDelegates.SafeDisposeStream(stream);
}
}
return(obj);
}
private static object FromRtfToRtf(ICoreItem coreItem, BodyWriteConfiguration configuration, Stream bodyStream, bool createWriter)
{
Stream stream = null;
object obj = null;
try
{
if (!createWriter && !configuration.IsContentTransformationNeeded(coreItem))
{
obj = new BodyCharsetDetectionStream(bodyStream, null, coreItem, BodyStreamFormat.RtfCompressed, null, configuration.TargetCharset, configuration.TargetCharsetFlags, null, false);
}
else
{
stream = new ConverterStream(bodyStream, new RtfToRtfCompressed(), ConverterStreamAccess.Write);
stream = new BodyCharsetDetectionStream(stream, null, coreItem, BodyStreamFormat.RtfUncompressed, null, configuration.TargetCharset, configuration.TargetCharsetFlags, null, false);
if (configuration.InjectPrefix != null || configuration.InjectSuffix != null)
{
stream = new ConverterStream(stream, new RtfToRtf
{
Header = configuration.InjectPrefix,
Footer = configuration.InjectSuffix,
HeaderFooterFormat = configuration.InjectionHeaderFooterFormat
}, ConverterStreamAccess.Write);
}
obj = BodyWriteDelegates.GetRtfDecompressorOrUnicodeWriter(stream, createWriter);
}
}
finally
{
if (obj == null && stream != null)
{
BodyWriteDelegates.SafeDisposeStream(stream);
}
}
return(obj);
}