зеркало из https://github.com/mozilla/gecko-dev.git
Fix for bug 82412: Preresolve DNS before calling into LDAP C-SDk. SR=bienvenu@netscape.com, r=dmose@netscape.com, patch=leif@netscape.com.
This commit is contained in:
leif%netscape.com
Родитель
b1095ee90a
Коммит
8f12c6c114
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@ -184,6 +184,14 @@ nsLDAPAutoCompleteSession::OnStartLookup(const PRUnichar *searchString,
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mState = SEARCHING;
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return StartLDAPSearch();
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case INITIALIZING:
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// We don't need to do anything here (for now at least), because
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// we can't really abandon the initialization. If we allowed the
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// initialization to be aborted, we could potentially lock the
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// UI thread again, since the DNS service might be stalled.
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//
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return NS_OK;
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case BINDING:
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case SEARCHING:
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// we should never get here
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@ -222,16 +230,22 @@ nsLDAPAutoCompleteSession::OnStopLookup()
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// nothing to stop
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return NS_OK;
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case BINDING:
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// XXXdmose should this really be the same as searching?
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// waiting for nsILDAPService landing to see. mState should at
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// least be set differently.
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case INITIALIZING:
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// We can't or shouldn't abor the initialization, because then the
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// DNS service can hang again...
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//
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return NS_OK;
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case BINDING:
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case SEARCHING:
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// Abandon the operation, if there is one
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//
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if (mOperation) {
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nsresult rv = mOperation->Abandon();
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if (NS_FAILED(rv)) {
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// since there's nothing interesting that can or should be done
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// if this abandon failed, warn about it and move on
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// since there's nothing interesting that can or should be
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// done if this abandon failed, warn about it and move on
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//
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NS_WARNING("nsLDAPAutoCompleteSession::OnStopLookup(): "
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"error calling mOperation->Abandon()");
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@ -240,10 +254,12 @@ nsLDAPAutoCompleteSession::OnStopLookup()
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// force nsCOMPtr to release mOperation
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//
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mOperation = 0;
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}
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// reset the status
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// Set the status properly, set to UNBOUND of we were binding, or
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// to BOUND if we were searching.
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//
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mState = BOUND;
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mState = (mState == BINDING ? UNBOUND : BOUND);
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}
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mResultsArray = 0;
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@ -395,6 +411,95 @@ nsLDAPAutoCompleteSession::OnLDAPMessage(nsILDAPMessage *aMessage)
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}
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}
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// void onLDAPInit (in nsresult aStatus);
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//
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NS_IMETHODIMP
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nsLDAPAutoCompleteSession::OnLDAPInit(nsresult aStatus)
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{
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nsresult rv; // temp for xpcom return values
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nsCOMPtr<nsILDAPMessageListener> selfProxy;
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// Check the status from the initialization of the LDAP connection
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//
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if (NS_FAILED(aStatus)) {
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_ERROR_FAILURE;
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}
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// create and initialize an LDAP operation (to be used for the bind)
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//
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mOperation = do_CreateInstance("@mozilla.org/network/ldap-operation;1",
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&rv);
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if (NS_FAILED(rv)) {
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_ERROR_FAILURE;
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}
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// get a proxy object so the callback happens on the main thread
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//
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rv = NS_GetProxyForObject(NS_UI_THREAD_EVENTQ,
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NS_GET_IID(nsILDAPMessageListener),
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NS_STATIC_CAST(nsILDAPMessageListener *, this),
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PROXY_ASYNC | PROXY_ALWAYS,
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getter_AddRefs(selfProxy));
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if (NS_FAILED(rv)) {
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NS_ERROR("nsLDAPAutoCompleteSession::OnLDAPInit(): couldn't "
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"create proxy to this object for callback");
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_ERROR_FAILURE;
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}
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// our OnLDAPMessage accepts all result callbacks
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//
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rv = mOperation->Init(mConnection, selfProxy);
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if (NS_FAILED(rv)) {
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_ERROR_UNEXPECTED; // this should never happen
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}
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// kick off a bind operation
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//
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PR_LOG(sLDAPAutoCompleteLogModule, PR_LOG_DEBUG,
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("nsLDAPAutoCompleteSession:OnLDAPInit(): initiating "
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"SimpleBind\n"));
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rv = mOperation->SimpleBind(NULL);
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if (NS_FAILED(rv)) {
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switch (rv) {
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case NS_ERROR_LDAP_SERVER_DOWN:
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// XXXdmose try to rebind for this one? wait for nsILDAPServer to
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// see...
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//
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case NS_ERROR_LDAP_CONNECT_ERROR:
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case NS_ERROR_LDAP_ENCODING_ERROR:
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case NS_ERROR_OUT_OF_MEMORY:
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PR_LOG(sLDAPAutoCompleteLogModule, PR_LOG_DEBUG,
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("nsLDAPAutoCompleteSession::OnLDAPInit(): mSimpleBind "
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"failed, rv = 0x%lx", rv));
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_OK;
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case NS_ERROR_UNEXPECTED:
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default:
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_ERROR_UNEXPECTED;
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}
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}
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// Change our state to binding.
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//
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mState = BINDING;
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return NS_OK;
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}
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nsresult
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nsLDAPAutoCompleteSession::OnLDAPBind(nsILDAPMessage *aMessage)
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{
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@ -820,8 +925,8 @@ nsLDAPAutoCompleteSession::StartLDAPSearch()
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nsresult
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nsLDAPAutoCompleteSession::InitConnection()
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{
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nsCOMPtr<nsILDAPMessageListener> selfProxy;
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nsresult rv; // temp for xpcom return values
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nsCOMPtr<nsILDAPMessageListener> selfProxy;
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// create an LDAP connection
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//
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@ -865,13 +970,35 @@ nsLDAPAutoCompleteSession::InitConnection()
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return NS_ERROR_FAILURE;
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}
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rv = mConnection->Init(host, port, 0);
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// get a proxy object so the callback happens on the main thread
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//
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rv = NS_GetProxyForObject(NS_UI_THREAD_EVENTQ,
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NS_GET_IID(nsILDAPMessageListener),
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NS_STATIC_CAST(nsILDAPMessageListener *, this),
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PROXY_ASYNC | PROXY_ALWAYS,
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getter_AddRefs(selfProxy));
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if (NS_FAILED(rv)) {
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NS_ERROR("nsLDAPAutoCompleteSession::InitConnection(): couldn't "
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"create proxy to this object for callback");
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_ERROR_FAILURE;
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}
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// Initialize the connection. This will cause an asynchronous DNS
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// lookup to occur, and we'll finish the binding of the connection
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// in the OnLDAPInit() listener function.
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//
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rv = mConnection->Init(host, port, 0, selfProxy);
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if NS_FAILED(rv) {
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switch (rv) {
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case NS_ERROR_OUT_OF_MEMORY:
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case NS_ERROR_NOT_AVAILABLE:
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case NS_ERROR_FAILURE:
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PR_LOG(sLDAPAutoCompleteLogModule, PR_LOG_DEBUG,
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("nsLDAPAutoCompleteSession::InitConnection(): mSimpleBind "
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"failed, rv = 0x%lx", rv));
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return rv;
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@ -884,75 +1011,9 @@ nsLDAPAutoCompleteSession::InitConnection()
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}
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}
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// create and initialize an LDAP operation (to be used for the bind)
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// set our state to initializing
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//
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mOperation = do_CreateInstance("@mozilla.org/network/ldap-operation;1",
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&rv);
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if (NS_FAILED(rv)) {
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_ERROR_FAILURE;
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}
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// get a proxy object so the callback happens on the main thread
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//
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rv = NS_GetProxyForObject(NS_UI_THREAD_EVENTQ,
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NS_GET_IID(nsILDAPMessageListener),
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NS_STATIC_CAST(nsILDAPMessageListener *, this),
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PROXY_ASYNC | PROXY_ALWAYS,
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getter_AddRefs(selfProxy));
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if (NS_FAILED(rv)) {
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NS_ERROR("nsLDAPAutoCompleteSession::InitLDAPConnection(): couldn't "
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"create proxy to this object for callback");
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_ERROR_FAILURE;
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}
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// our OnLDAPMessage accepts all result callbacks
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//
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rv = mOperation->Init(mConnection, selfProxy);
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if (NS_FAILED(rv)) {
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_ERROR_UNEXPECTED; // this should never happen
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}
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// kick off a bind operation
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//
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PR_LOG(sLDAPAutoCompleteLogModule, PR_LOG_DEBUG,
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("nsLDAPAutoCompleteSession:InitConnection: initiating "
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"SimpleBind\n"));
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rv = mOperation->SimpleBind(NULL);
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if (NS_FAILED(rv)) {
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switch (rv) {
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case NS_ERROR_LDAP_SERVER_DOWN:
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// XXXdmose try to rebind for this one? wait for nsILDAPServer to
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// see...
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//
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case NS_ERROR_LDAP_CONNECT_ERROR:
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case NS_ERROR_LDAP_ENCODING_ERROR:
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case NS_ERROR_OUT_OF_MEMORY:
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PR_LOG(sLDAPAutoCompleteLogModule, PR_LOG_DEBUG,
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("nsLDAPAutoCompleteSession::InitConnection(): mSimpleBind "
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"failed, rv = 0x%lx", rv));
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_OK;
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case NS_ERROR_UNEXPECTED:
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default:
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mState = UNBOUND;
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FinishAutoCompleteLookup(nsIAutoCompleteStatus::failed);
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return NS_ERROR_UNEXPECTED;
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}
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}
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// set our state
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//
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mState = BINDING;
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mState = INITIALIZING;
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return NS_OK;
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}
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@ -993,6 +1054,11 @@ nsLDAPAutoCompleteSession::FinishAutoCompleteLookup(AutoCompleteStatus
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mResults = 0;
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mListener = 0;
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mOperation = 0;
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// If we are unbound, drop the connection (if any)
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//
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if (mState == UNBOUND)
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mConnection = 0;
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}
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// methods for nsILDAPAutoCompleteSession
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@ -52,7 +52,8 @@ class nsLDAPAutoCompleteSession : public nsILDAPMessageListener,
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virtual ~nsLDAPAutoCompleteSession();
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protected:
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enum SessionState { UNBOUND, BINDING, BOUND, SEARCHING } mState;
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enum SessionState { UNBOUND, INITIALIZING, BINDING, BOUND,
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SEARCHING } mState;
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PRUint32 mEntriesReturned; // # of entries returned?
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nsCOMPtr<nsILDAPConnection> mConnection; // connection used for search
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nsCOMPtr<nsILDAPOperation> mOperation; // current ldap op
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