C++ LLHost::isOk方法代码示例

/**
 * @brief Initiates a SOCKS 5 proxy session.
 *
 * Performs basic checks on host to verify that it is a valid address. Opens the control channel
 * and then negotiates the proxy connection with the server. Closes any existing SOCKS
 * connection before proceeding. Also disables an HTTP proxy if it is using SOCKS as the proxy.
 *
 *
 * @param host Socks server to connect to.
 * @return SOCKS_OK if successful, otherwise a SOCKS error code defined in llproxy.h.
 */
S32 LLProxy::startSOCKSProxy(LLHost host)
{
	if (host.isOk())
	{
		mTCPProxy = host;
	}
	else
	{
		return SOCKS_INVALID_HOST;
	}

	// Close any running SOCKS connection.
	stopSOCKSProxy();

	mProxyControlChannel = tcp_open_channel(mTCPProxy);
	if (!mProxyControlChannel)
	{
		return SOCKS_HOST_CONNECT_FAILED;
	}

	S32 status = proxyHandshake(mTCPProxy);

	if (status != SOCKS_OK)
	{
		// Shut down the proxy if any of the above steps failed.
		stopSOCKSProxy();
	}
	else
	{
		// Connection was successful.
		sUDPProxyEnabled = true;
	}

	return status;
}

/**
 * @brief Enable the HTTP proxy for either SOCKS or HTTP.
 *
 * Check the supplied host to see if it is a valid IP and port.
 *
 * @param httpHost Proxy server to connect to.
 * @param type Is the host a SOCKS or HTTP proxy.
 * @return Return true if applying the setting was successful. No changes are made if false.
 */
bool LLProxy::enableHTTPProxy(LLHost httpHost, LLHttpProxyType type)
{
	if (!httpHost.isOk())
	{
		LL_WARNS("Proxy") << "Invalid SOCKS 5 Server" << LL_ENDL;
		return false;
	}

	LLMutexLock lock(&mProxyMutex);

	mHTTPProxy        = httpHost;
	mProxyType        = type;

	mHTTPProxyEnabled = true;

	return true;
}

void LLAssetStorage::getInvItemAsset(const LLHost &object_sim, const LLUUID &agent_id, const LLUUID &session_id,
									 const LLUUID &owner_id, const LLUUID &task_id, const LLUUID &item_id,
									 const LLUUID &asset_id, LLAssetType::EType atype,
									 LLGetAssetCallback callback, void *user_data, BOOL is_priority)
{
	lldebugs << "LLAssetStorage::getInvItemAsset() - " << asset_id << "," << LLAssetType::lookup(atype) << llendl;

	//
	// Probably will get rid of this early out?
	//
	//if (asset_id.isNull())
	//{
	//	// Special case early out for NULL uuid
	//	if (callback)
	//	{
	//		callback(mVFS, asset_id, atype, user_data, LL_ERR_ASSET_REQUEST_NOT_IN_DATABASE);
	//	}
	//	return;
	//}

	bool exists = false; 
	U32 size = 0;

	if(asset_id.notNull())
	{
		exists = mVFS->getExists(asset_id, atype);
		LLVFile file(mVFS, asset_id, atype);
		size = exists ? file.getSize() : 0;
		if(exists && size < 1)
		{
			llwarns << "Asset vfile " << asset_id << ":" << atype << " found with bad size " << file.getSize() << ", removing" << llendl;
			file.remove();
		}

	}

	if (size < 1)
	{
		// See whether we should talk to the object's originating sim,
		// or the upstream provider.
		LLHost source_host;
		if (object_sim.isOk())
		{
			source_host = object_sim;
		}
		else
		{
			source_host = mUpstreamHost;
		}
		if (source_host.isOk())
		{
			// stash the callback info so we can find it after we get the response message
			LLInvItemRequest *req = new LLInvItemRequest(asset_id, atype);
			req->mDownCallback = callback;
			req->mUserData = user_data;
			req->mIsPriority = is_priority;

			// send request message to our upstream data provider
			// Create a new asset transfer.
			LLTransferSourceParamsInvItem spi;
			spi.setAgentSession(agent_id, session_id);
			spi.setInvItem(owner_id, task_id, item_id);
			spi.setAsset(asset_id, atype);

			// Set our destination file, and the completion callback.
			LLTransferTargetParamsVFile tpvf;
			tpvf.setAsset(asset_id, atype);
			tpvf.setCallback(downloadInvItemCompleteCallback, req);

			llinfos << "Starting transfer for inventory asset "
				<< item_id << " owned by " << owner_id << "," << task_id
				<< llendl;
			LLTransferTargetChannel *ttcp = gTransferManager.getTargetChannel(source_host, LLTCT_ASSET);
			ttcp->requestTransfer(spi, tpvf, 100.f + (is_priority ? 1.f : 0.f));
		}
		else
		{
			// uh-oh, we shouldn't have gotten here
			llwarns << "Attempt to move asset data request upstream w/o valid upstream provider" << llendl;
			if (callback)
			{
				callback(mVFS, asset_id, atype, user_data, LL_ERR_CIRCUIT_GONE, LL_EXSTAT_NO_UPSTREAM);
			}
		}
	}
	else
	{
		// we've already got the file
		// theoretically, partial files w/o a pending request shouldn't happen
		// unless there's a weird error
		if (callback)
		{
			callback(mVFS, asset_id, atype, user_data, LL_ERR_NOERR, LL_EXSTAT_VFS_CACHED);
		}
	}
}

	void host_object::test<1>()
	{
		LLHost host;
		ensure("IP address is not NULL", (0 == host.getAddress()) && (0 == host.getPort()) && !host.isOk());
	}

void LLAssetStorage::getEstateAsset(const LLHost &object_sim, const LLUUID &agent_id, const LLUUID &session_id,
									const LLUUID &asset_id, LLAssetType::EType atype, EstateAssetType etype,
									 LLGetAssetCallback callback, void *user_data, BOOL is_priority)
{
	LL_DEBUGS() << "LLAssetStorage::getEstateAsset() - " << asset_id << "," << LLAssetType::lookup(atype) << ", estatetype " << etype << LL_ENDL;

	//
	// Probably will get rid of this early out?
	//
	if (asset_id.isNull())
	{
		// Special case early out for NULL uuid
		if (callback)
		{
			callback(mVFS, asset_id, atype, user_data, LL_ERR_ASSET_REQUEST_NOT_IN_DATABASE, LL_EXSTAT_NULL_UUID);
		}
		return;
	}

	// Try static VFS first.
	if (findInStaticVFSAndInvokeCallback(asset_id,atype,callback,user_data))
	{
		return;
	}
	
	BOOL exists = mVFS->getExists(asset_id, atype);
	LLVFile file(mVFS, asset_id, atype);
	U32 size = exists ? file.getSize() : 0;

	if (size > 0)
	{
		// we've already got the file
		// theoretically, partial files w/o a pending request shouldn't happen
		// unless there's a weird error
		if (callback)
		{
			callback(mVFS, asset_id, atype, user_data, LL_ERR_NOERR, LL_EXSTAT_VFS_CACHED);
		}
	}
	else
	{
		if (exists)
		{
			LL_WARNS() << "Asset vfile " << asset_id << ":" << atype << " found with bad size " << file.getSize() << ", removing" << LL_ENDL;
			file.remove();
		}

		// See whether we should talk to the object's originating sim, or the upstream provider.
		LLHost source_host;
		if (object_sim.isOk())
		{
			source_host = object_sim;
		}
		else
		{
			source_host = mUpstreamHost;
		}
		if (source_host.isOk())
		{
			// stash the callback info so we can find it after we get the response message
			LLEstateAssetRequest *req = new LLEstateAssetRequest(asset_id, atype, etype);
			req->mDownCallback = callback;
			req->mUserData = user_data;
			req->mIsPriority = is_priority;

			// send request message to our upstream data provider
			// Create a new asset transfer.
			LLTransferSourceParamsEstate spe;
			spe.setAgentSession(agent_id, session_id);
			spe.setEstateAssetType(etype);

			// Set our destination file, and the completion callback.
			LLTransferTargetParamsVFile tpvf;
			tpvf.setAsset(asset_id, atype);
			tpvf.setCallback(downloadEstateAssetCompleteCallback, req);

			LL_DEBUGS("AssetStorage") << "Starting transfer for " << asset_id << LL_ENDL;
			LLTransferTargetChannel *ttcp = gTransferManager.getTargetChannel(source_host, LLTCT_ASSET);
			ttcp->requestTransfer(spe, tpvf, 100.f + (is_priority ? 1.f : 0.f));
		}
		else
		{
			// uh-oh, we shouldn't have gotten here
			LL_WARNS() << "Attempt to move asset data request upstream w/o valid upstream provider" << LL_ENDL;
			if (callback)
			{
				callback(mVFS, asset_id, atype, user_data, LL_ERR_CIRCUIT_GONE, LL_EXSTAT_NO_UPSTREAM);
			}
		}
	}
}