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fixes bug 200681 "Crash on <link rel=stylesheet href="mailto:foo">" r/sr=bz,sspitzer
This commit is contained in:
darin%netscape.com
parent
e92078ae53
commit
625a741ad3
@ -41,6 +41,7 @@
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#include "nsReadableUtils.h"
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#include "nsIPref.h"
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#include "nsIIOService.h"
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#include "nsIPipe.h"
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#include "nsNetCID.h"
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#include "nsEscape.h"
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#include "nsNetUtil.h"
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@ -357,221 +358,6 @@ NS_IMETHODIMP nsSmtpService::GetProtocolFlags(PRUint32 *result)
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return NS_OK;
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}
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//////////////////////////////////////////////////////////////////////////
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// This is just a little stub channel class for mailto urls. Mailto urls
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// don't really have any data for the stream calls in nsIChannel to make much sense.
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// But we need to have a channel to return for nsSmtpService::NewChannel
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// that can simulate a real channel such that the uri loader can then get the
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// content type for the channel.
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class nsMailtoChannel : public nsIChannel
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSICHANNEL
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NS_DECL_NSIREQUEST
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nsMailtoChannel(nsIURI * aURI);
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virtual ~nsMailtoChannel();
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protected:
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nsCOMPtr<nsIURI> m_url;
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nsresult mStatus;
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nsCOMPtr<nsILoadGroup> mLoadGroup;
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};
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nsMailtoChannel::nsMailtoChannel(nsIURI * aURI)
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: m_url(aURI), mStatus(NS_OK)
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{
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}
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nsMailtoChannel::~nsMailtoChannel()
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{}
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NS_IMPL_ISUPPORTS2(nsMailtoChannel, nsIChannel, nsIRequest);
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NS_IMETHODIMP nsMailtoChannel::GetLoadGroup(nsILoadGroup * *aLoadGroup)
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{
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*aLoadGroup = mLoadGroup;
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NS_IF_ADDREF(*aLoadGroup);
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::SetLoadGroup(nsILoadGroup * aLoadGroup)
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{
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mLoadGroup = aLoadGroup;
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::GetNotificationCallbacks(nsIInterfaceRequestor* *aNotificationCallbacks)
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{
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NS_NOTREACHED("GetNotificationCallbacks");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsMailtoChannel::SetNotificationCallbacks(nsIInterfaceRequestor* aNotificationCallbacks)
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{
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return NS_OK; // don't fail when trying to set this
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}
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NS_IMETHODIMP nsMailtoChannel::GetOriginalURI(nsIURI* *aURI)
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{
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*aURI = nsnull;
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::SetOriginalURI(nsIURI* aURI)
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{
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::GetURI(nsIURI* *aURI)
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{
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*aURI = m_url;
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NS_IF_ADDREF(*aURI);
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::Open(nsIInputStream **_retval)
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{
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NS_NOTREACHED("Open");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsMailtoChannel::AsyncOpen(nsIStreamListener *listener, nsISupports *ctxt)
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{
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// Add to the load group to fire start event
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if (mLoadGroup) {
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mLoadGroup->AddRequest(this, ctxt);
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}
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mStatus = listener->OnStartRequest(this, ctxt);
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// If OnStartRequest(...) failed, then propagate the error code...
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if (NS_SUCCEEDED(mStatus)) {
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// Otherwise, indicate that no content is available...
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mStatus = NS_ERROR_NO_CONTENT;
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}
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// Call OnStopRequest(...) for correct-ness.
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(void) listener->OnStopRequest(this, ctxt, mStatus);
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// Remove from the load group to fire stop event
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if (mLoadGroup) {
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mLoadGroup->RemoveRequest(this, ctxt, mStatus);
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}
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// Always return NS_ERROR_NO_CONTENT since this channel never provides
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// data...
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return NS_ERROR_NO_CONTENT;
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}
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NS_IMETHODIMP nsMailtoChannel::GetLoadFlags(nsLoadFlags *aLoadFlags)
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{
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*aLoadFlags = 0;
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::SetLoadFlags(nsLoadFlags aLoadFlags)
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{
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::GetContentType(nsACString &aContentType)
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{
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aContentType = NS_LITERAL_CSTRING("x-application-mailto");
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::SetContentType(const nsACString &aContentType)
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{
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// Do not allow the content type to change...
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return NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP nsMailtoChannel::GetContentCharset(nsACString &aContentCharset)
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{
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aContentCharset.Truncate();
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::SetContentCharset(const nsACString &aContentCharset)
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{
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// Do not allow the content type to change...
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return NS_ERROR_FAILURE;
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}
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NS_IMETHODIMP nsMailtoChannel::GetContentLength(PRInt32 * aContentLength)
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{
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*aContentLength = -1;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsMailtoChannel::SetContentLength(PRInt32 aContentLength)
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{
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NS_NOTREACHED("SetContentLength");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsMailtoChannel::GetOwner(nsISupports * *aPrincipal)
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{
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NS_NOTREACHED("GetOwner");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsMailtoChannel::SetOwner(nsISupports * aPrincipal)
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{
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NS_NOTREACHED("SetOwner");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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/* readonly attribute nsISupports securityInfo; */
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NS_IMETHODIMP nsMailtoChannel::GetSecurityInfo(nsISupports * *aSecurityInfo)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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////////////////////////////////////////////////////////////////////////////////
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// From nsIRequest
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////////////////////////////////////////////////////////////////////////////////
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/* readonly attribute wstring name; */
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NS_IMETHODIMP nsMailtoChannel::GetName(nsACString &aName)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsMailtoChannel::IsPending(PRBool *result)
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{
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*result = PR_FALSE;
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::GetStatus(nsresult *status)
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{
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*status = mStatus;
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::Cancel(nsresult status)
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{
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mStatus = status;
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return NS_OK;
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}
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NS_IMETHODIMP nsMailtoChannel::Suspend()
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{
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NS_NOTREACHED("Suspend");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP nsMailtoChannel::Resume()
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{
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NS_NOTREACHED("Resume");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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// the smtp service is also the protocol handler for mailto urls....
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NS_IMETHODIMP nsSmtpService::NewURI(const nsACString &aSpec,
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@ -603,15 +389,17 @@ NS_IMETHODIMP nsSmtpService::NewURI(const nsACString &aSpec,
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NS_IMETHODIMP nsSmtpService::NewChannel(nsIURI *aURI, nsIChannel **_retval)
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{
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nsresult rv = NS_OK;
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nsMailtoChannel * aMailtoChannel = new nsMailtoChannel(aURI);
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if (aMailtoChannel)
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{
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rv = aMailtoChannel->QueryInterface(NS_GET_IID(nsIChannel), (void **) _retval);
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}
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else
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rv = NS_ERROR_OUT_OF_MEMORY;
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return rv;
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// create an empty pipe for use with the input stream channel.
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nsCOMPtr<nsIInputStream> pipeIn;
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nsCOMPtr<nsIOutputStream> pipeOut;
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nsresult rv = NS_NewPipe(getter_AddRefs(pipeIn),
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getter_AddRefs(pipeOut));
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if (NS_FAILED(rv)) return rv;
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pipeOut->Close();
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return NS_NewInputStreamChannel(_retval, aURI, pipeIn,
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NS_LITERAL_CSTRING("x-application-mailto"));
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}
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@ -146,9 +146,16 @@ nsUnicharStreamLoader::OnStopRequest(nsIRequest *request,
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nsISupports *ctxt,
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nsresult aStatus)
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{
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nsresult rv = NS_OK;
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NS_ASSERTION(mObserver, "No way we can not have an mObserver here!");
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// if we trigger this assertion, then it means that the channel called
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// OnStopRequest before returning from AsyncOpen, which is totally
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// unexpected behavior.
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if (!mObserver) {
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NS_ERROR("No way we should not have an mObserver here!");
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return NS_ERROR_UNEXPECTED;
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}
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if (mInputStream) {
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nsresult rv;
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// We got some data at some point. I guess we should tell our
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// observer about it or something....
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@ -199,7 +206,7 @@ nsUnicharStreamLoader::OnStopRequest(nsIRequest *request,
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mContext = nsnull;
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mInputStream = nsnull;
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mOutputStream = nsnull;
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return rv;
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return NS_OK;
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}
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/* nsIStreamListener implementation */
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