public override void Flush()
{
DebugHelpers.WriteLine("ResponseFilter::Flush");
Byte[] buf = m_stagingBuffer.GetBuffer();
//If the buffer holds compressed content then we allow the original output stream to be used because we don't try to modify compressed streams
if (m_streamIsCompressed)
{
DebugHelpers.WriteLine("ResponseFilter::Flush -- skipping compressed content");
m_outputStream.Flush();
return;
}
// Convert byte array into string.
Encoding enc = m_httpContext.Response.ContentEncoding;
string entity = enc.GetString(buf, 0, (int)m_stagingBuffer.Length);
// Prep for special BOM handling.
// NB: at present we only support UTF-8 for this logic.
//bool utf8WithoutBom = enc is UTF8Encoding && !buf.IsTextWithBom_Utf8();
// #86 -- disabled this BOM handling for now as it doesn't seem to help.
// Furthermore, it appears that the Encoding instance returned by
// Response.ContentEncoding above is correctly configured to omit
// BOM or not from its GetByte method, depending on whether or not
// the response buffer has a BOM in it or not (for instance, see the
// ctor of UTF8Encoding that takes a bool for this).
// Buffer no longer required so release memory.
m_stagingBuffer.Dispose();
m_stagingBuffer = null;
buf = null;
// Translate any embedded messages aka 'nuggets'.
if (m_nuggetLocalizer != null)
{
var page = m_httpContext.Handler as Page;
bool isScriptManager = false;
if (page != null)
{
var sm = ScriptManager.GetCurrent(page);
if (sm != null && sm.IsInAsyncPostBack)
{
isScriptManager = true;
}
}
//if async postback
if (page != null && page.IsPostBack && isScriptManager && !String.IsNullOrEmpty(entity) && !String.IsNullOrEmpty(entity.Replace("\r", "").Split('\n')[0])) //#178
{
var asyncPostbackParser = new AsyncPostbackParser(entity);
var types = LocalizedApplication.Current.AsyncPostbackTypesToTranslate.Split(new char[] { ',' });
foreach (var type in types)
{
asyncPostbackParser.GetSections(type).ForEach(section => {
section.Content = m_nuggetLocalizer.ProcessNuggets(
section.Content,
m_httpContext.GetRequestUserLanguages());
});
}
entity = asyncPostbackParser.ToString();
}
else
{
entity = m_nuggetLocalizer.ProcessNuggets(
entity,
m_httpContext.GetRequestUserLanguages());
}
}
// If Early Localization is enabled, we balance that here with Late URL Localization.
// The goal is to localize same-host URLs in the entity body and so save a redirect
// on subsequent requests to those URLs by the user-agent (Early URL Localization).
// We patch all URLs in the entity which are:
// 1. same-host
// 2. are not already localized
// 3. pass any custom filtering
// Examples of attributes containing urls include:
// <script src="..."> tags
// <img src="..."> tags
// <a href="..."> tags
// <link href="..."> tags
if (m_earlyUrlLocalizer != null)
{
entity = m_earlyUrlLocalizer.ProcessOutgoing(
entity,
m_httpContext.GetPrincipalAppLanguageForRequest().ToString(),
m_httpContext);
}
//DebugHelpers.WriteLine("ResponseFilter::Write -- entity:\n{0}", entity);
// Render the string back to an array of bytes.
buf = enc.GetBytes(entity);
enc = null; // release memory asap.
int count = buf.Length;
// Prep to skip any BOM if it wasn't originally there.
// NB: at present we only support UTF-8 for this logic.
int skip = 0;
//if (utf8WithoutBom && buf.IsTextWithBom_Utf8()) {
// skip = 3; }
// #86 -- see matching comment above.
// Forward data on to the original response stream.
m_outputStream.Write(buf, skip, count - skip);
// Complete the write.
m_outputStream.Flush();
}
public override void Flush()
{
if (m_stagingBuffer == null) { return; }
DebugHelpers.WriteLine("ResponseFilter::Flush");
Byte[] buf = m_stagingBuffer.GetBuffer();
//If the buffer holds compressed content then we allow the original output stream to be used because we don't try to modify compressed streams
if (m_streamIsCompressed)
{
DebugHelpers.WriteLine("ResponseFilter::Flush -- skipping compressed content");
m_outputStream.Flush();
return;
}
// Convert byte array into string.
Encoding enc = m_httpContext.Response.ContentEncoding;
string entity = enc.GetString(buf, 0, (int)m_stagingBuffer.Length);
// Prep for special BOM handling.
// NB: at present we only support UTF-8 for this logic.
//bool utf8WithoutBom = enc is UTF8Encoding && !buf.IsTextWithBom_Utf8();
// #86 -- disabled this BOM handling for now as it doesn't seem to help.
// Furthermore, it appears that the Encoding instance returned by
// Response.ContentEncoding above is correctly configured to omit
// BOM or not from its GetByte method, depending on whether or not
// the response buffer has a BOM in it or not (for instance, see the
// ctor of UTF8Encoding that takes a bool for this).
// Buffer no longer required so release memory.
m_stagingBuffer.Dispose();
m_stagingBuffer = null;
buf = null;
// Translate any embedded messages aka 'nuggets'.
if (m_nuggetLocalizer != null)
{
var page = m_httpContext.Handler as System.Web.UI.Page;
bool isScriptManager = false;
if (page != null)
{
var sm = System.Web.UI.ScriptManager.GetCurrent(page);
if (sm != null && sm.IsInAsyncPostBack) isScriptManager = true;
}
//if async postback
if (page != null && page.IsPostBack && isScriptManager && !String.IsNullOrEmpty(entity) && !String.IsNullOrEmpty(entity.Replace("\r","").Split('\n')[0])) { //#178
var asyncPostbackParser = new AsyncPostbackParser(entity);
var types = LocalizedApplication.Current.AsyncPostbackTypesToTranslate.Split(new char[] {','});
foreach (var type in types) {
asyncPostbackParser.GetSections(type).ForEach(section => {
section.Content = m_nuggetLocalizer.ProcessNuggets(
section.Content,
m_httpContext.GetRequestUserLanguages());
});
}
entity = asyncPostbackParser.ToString();
} else {
entity = m_nuggetLocalizer.ProcessNuggets(
entity,
m_httpContext.GetRequestUserLanguages());
}
}
// If Early Localization is enabled, we balance that here with Late URL Localization.
// The goal is to localize same-host URLs in the entity body and so save a redirect
// on subsequent requests to those URLs by the user-agent (Early URL Localization).
// We patch all URLs in the entity which are:
// 1. same-host
// 2. are not already localized
// 3. pass any custom filtering
// Examples of attributes containing urls include:
// <script src="..."> tags
// <img src="..."> tags
// <a href="..."> tags
// <link href="..."> tags
if (m_earlyUrlLocalizer != null)
{
entity = m_earlyUrlLocalizer.ProcessOutgoing(
entity,
m_httpContext.GetPrincipalAppLanguageForRequest().ToString(),
m_httpContext);
}
//DebugHelpers.WriteLine("ResponseFilter::Write -- entity:\n{0}", entity);
// Render the string back to an array of bytes.
buf = enc.GetBytes(entity);
enc = null; // release memory asap.
int count = buf.Length;
// Prep to skip any BOM if it wasn't originally there.
// NB: at present we only support UTF-8 for this logic.
int skip = 0;
//if (utf8WithoutBom && buf.IsTextWithBom_Utf8()) {
// skip = 3; }
// #86 -- see matching comment above.
// Forward data on to the original response stream.
m_outputStream.Write(buf, skip, count -skip);
// Complete the write.
m_outputStream.Flush();
}
