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Bug 767087 - Add a flag to force content sniffing when we get served application/octet-stream. r=jduell

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This commit is contained in:
Paul Adenot 2012-06-26 10:33:00 -07:00
parent dc4826bb04
commit aca85bb434
3 changed files with 21 additions and 4 deletions
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8
netwerk/base/public/nsIChannel.idl
View File

@ -241,6 +241,14 @@ interface nsIChannel : nsIRequest
*/
const unsigned long LOAD_CLASSIFY_URI = 1 << 22;
/**
* If this flag is set and a server's response is Content-Type
* application/octet-steam, the server's Content-Type will be ignored and
* the channel content will be sniffed as though no Content-Type had been
* passed.
*/
const unsigned long LOAD_TREAT_APPLICATION_OCTET_STREAM_AS_UNKNOWN = 1 << 23;
/**
* Access to the type implied or stated by the Content-Disposition header
* if available and if applicable. This allows determining inline versus

12
netwerk/base/src/nsBaseChannel.cpp
View File

@ -682,9 +682,15 @@ CallUnknownTypeSniffer(void *aClosure, const PRUint8 *aData, PRUint32 aCount)
NS_IMETHODIMP
nsBaseChannel::OnStartRequest(nsIRequest *request, nsISupports *ctxt)
{
// If our content type is unknown, then use the content type sniffer. If the
// sniffer is not available for some reason, then we just keep going as-is.
if (NS_SUCCEEDED(mStatus) && mContentType.EqualsLiteral(UNKNOWN_CONTENT_TYPE)) {
// If our content type is unknown or if the content type is
// application/octet-stream and the caller requested it, use the content type
// sniffer. If the sniffer is not available for some reason, then we just keep
// going as-is.
bool shouldSniff = mContentType.EqualsLiteral(UNKNOWN_CONTENT_TYPE) ||
((mLoadFlags & LOAD_TREAT_APPLICATION_OCTET_STREAM_AS_UNKNOWN) &&
mContentType.EqualsLiteral(APPLICATION_OCTET_STREAM));
if (NS_SUCCEEDED(mStatus) && shouldSniff) {
mPump->PeekStream(CallUnknownTypeSniffer, static_cast<nsIChannel*>(this));
}

5
netwerk/protocol/http/nsHttpChannel.cpp
View File

@ -881,8 +881,11 @@ nsresult
nsHttpChannel::CallOnStartRequest()
{
mTracingEnabled = false;
bool shouldSniff = mResponseHead && (mResponseHead->ContentType().IsEmpty() ||
((mResponseHead->ContentType().EqualsLiteral(APPLICATION_OCTET_STREAM) &&
(mLoadFlags & LOAD_TREAT_APPLICATION_OCTET_STREAM_AS_UNKNOWN))));
if (mResponseHead && mResponseHead->ContentType().IsEmpty()) {
if (shouldSniff) {
NS_ASSERTION(mConnectionInfo, "Should have connection info here");
if (!mContentTypeHint.IsEmpty())
mResponseHead->SetContentType(mContentTypeHint);