C++ Bundle::set方法代码示例

		void SecurityManager::verifyPIB(dtn::data::Bundle &bundle) const throw (VerificationFailedException)
		{
			IBRCOMMON_LOGGER_DEBUG_TAG("SecurityManager", 10) << "verify signed bundle: " << bundle.toString() << IBRCOMMON_LOGGER_ENDL;

			// iterate through all blocks
			for (dtn::data::Bundle::iterator it = bundle.begin(); it != bundle.end();)
			{
				const dtn::data::Block &block = (**it);

				if (block.getType() == dtn::security::PayloadConfidentialBlock::BLOCK_TYPE) {
					// payload after a PCB can not verified until the payload is decrypted
					break;
				}

				try {
					const dtn::security::PayloadIntegrityBlock& pib = dynamic_cast<const dtn::security::PayloadIntegrityBlock&>(block);

					const SecurityKey key = SecurityKeyManager::getInstance().get(pib.getSecuritySource(bundle), SecurityKey::KEY_PUBLIC);

					// try to verify the bundle with the key for the current PIB
					dtn::security::PayloadIntegrityBlock::verify(bundle, key);

					// if we are the security destination
					if (pib.isSecurityDestination(bundle, dtn::core::BundleCore::local)) {
						// remove the valid PIB
						bundle.erase(it++);
					} else {
						++it;
					}

					// set the verify bit, after verification
					bundle.set(dtn::data::PrimaryBlock::DTNSEC_STATUS_VERIFIED, true);

					IBRCOMMON_LOGGER_DEBUG_TAG("SecurityManager", 5) << "Bundle " << bundle.toString() << " successfully verified" << IBRCOMMON_LOGGER_ENDL;
					continue;
				} catch (const dtn::security::VerificationSkippedException&) {
					// un-set the verify bit
					bundle.set(dtn::data::PrimaryBlock::DTNSEC_STATUS_VERIFIED, false);
				} catch (const SecurityKey::KeyNotFoundException&) {
					// un-set the verify bit
					bundle.set(dtn::data::PrimaryBlock::DTNSEC_STATUS_VERIFIED, false);
				} catch (const std::bad_cast&) {
					// current block is not a PIB
				}

				++it;
			}
		}

		void SecurityManager::verifyBAB(dtn::data::Bundle &bundle) const throw (VerificationFailedException)
		{
			IBRCOMMON_LOGGER_DEBUG_TAG("SecurityManager", 10) << "verify authenticated bundle: " << bundle.toString() << IBRCOMMON_LOGGER_ENDL;

			// iterate over all BABs of this bundle
			dtn::data::Bundle::find_iterator it(bundle.begin(), dtn::security::BundleAuthenticationBlock::BLOCK_TYPE);
			while (it.next(bundle.end()))
			{
				const dtn::security::BundleAuthenticationBlock& bab = dynamic_cast<const dtn::security::BundleAuthenticationBlock&>(**it);

				// look for the right BAB-factory
				const dtn::data::EID node = bab.getSecuritySource(bundle);

				try {
					// try to load the key of the BAB
					const SecurityKey key = SecurityKeyManager::getInstance().get(node, SecurityKey::KEY_SHARED);

					// verify the bundle
					dtn::security::BundleAuthenticationBlock::verify(bundle, key);

					// strip all BAB of this bundle
					dtn::security::BundleAuthenticationBlock::strip(bundle);

					// set the verify bit, after verification
					bundle.set(dtn::data::Bundle::DTNSEC_STATUS_AUTHENTICATED, true);

					// at least one BAB has been authenticated, we're done!
					break;
				} catch (const SecurityKey::KeyNotFoundException&) {
					// no key for this node found
				}
			}
		}

		void SecurityManager::decrypt(dtn::data::Bundle &bundle) const throw (DecryptException, KeyMissingException)
		{
			// check if the bundle has to be decrypted, return when not
			if (std::count(bundle.begin(), bundle.end(), dtn::security::PayloadConfidentialBlock::BLOCK_TYPE) <= 0) return;

			// decrypt
			try {
				IBRCOMMON_LOGGER_DEBUG_TAG("SecurityManager", 10) << "decrypt bundle: " << bundle.toString() << IBRCOMMON_LOGGER_ENDL;

				// get the encryption key
				dtn::security::SecurityKey key = SecurityKeyManager::getInstance().get(dtn::core::BundleCore::local, dtn::security::SecurityKey::KEY_PRIVATE);

				// encrypt the payload of the bundle
				dtn::security::PayloadConfidentialBlock::decrypt(bundle, key);

				bundle.set(dtn::data::Bundle::DTNSEC_STATUS_CONFIDENTIAL, true);
			} catch (const ibrcommon::Exception &ex) {
				throw DecryptException(ex.what());
			}
		}

		void Registration::processIncomingBundle(const dtn::data::EID &source, dtn::data::Bundle &bundle)
		{
			// check address fields for "api:me", this has to be replaced
			static const dtn::data::EID clienteid("api:me");

			// set the source address to the sending EID
			bundle.source = source;

			if (bundle.destination == clienteid) bundle.destination = source;
			if (bundle.reportto == clienteid) bundle.reportto = source;
			if (bundle.custodian == clienteid) bundle.custodian = source;

			// if the timestamp is not set, add a ageblock
			if (bundle.timestamp == 0)
			{
				// check for ageblock
				try {
					bundle.find<dtn::data::AgeBlock>();
				} catch (const dtn::data::Bundle::NoSuchBlockFoundException&) {
					// add a new ageblock
					bundle.push_front<dtn::data::AgeBlock>();
				}
			}

			// modify TrackingBlock
			try {
				dtn::data::TrackingBlock &track = bundle.find<dtn::data::TrackingBlock>();
				track.append(dtn::core::BundleCore::local);
			} catch (const dtn::data::Bundle::NoSuchBlockFoundException&) { };

#ifdef WITH_COMPRESSION
			// if the compression bit is set, then compress the bundle
			if (bundle.get(dtn::data::PrimaryBlock::IBRDTN_REQUEST_COMPRESSION))
			{
				try {
					dtn::data::CompressedPayloadBlock::compress(bundle, dtn::data::CompressedPayloadBlock::COMPRESSION_ZLIB);
				} catch (const ibrcommon::Exception &ex) {
					IBRCOMMON_LOGGER_TAG(Registration::TAG, warning) << "compression of bundle failed: " << ex.what() << IBRCOMMON_LOGGER_ENDL;
				};
			}
#endif

#ifdef WITH_BUNDLE_SECURITY
			// if the encrypt bit is set, then try to encrypt the bundle
			if (bundle.get(dtn::data::PrimaryBlock::DTNSEC_REQUEST_ENCRYPT))
			{
				try {
					dtn::security::SecurityManager::getInstance().encrypt(bundle);

					bundle.set(dtn::data::PrimaryBlock::DTNSEC_REQUEST_ENCRYPT, false);
				} catch (const dtn::security::SecurityManager::KeyMissingException&) {
					// sign requested, but no key is available
					IBRCOMMON_LOGGER_TAG(Registration::TAG, warning) << "No key available for encrypt process." << IBRCOMMON_LOGGER_ENDL;
				} catch (const dtn::security::SecurityManager::EncryptException&) {
					IBRCOMMON_LOGGER_TAG(Registration::TAG, warning) << "Encryption of bundle failed." << IBRCOMMON_LOGGER_ENDL;
				}
			}

			// if the sign bit is set, then try to sign the bundle
			if (bundle.get(dtn::data::PrimaryBlock::DTNSEC_REQUEST_SIGN))
			{
				try {
					dtn::security::SecurityManager::getInstance().sign(bundle);

					bundle.set(dtn::data::PrimaryBlock::DTNSEC_REQUEST_SIGN, false);
				} catch (const dtn::security::SecurityManager::KeyMissingException&) {
					// sign requested, but no key is available
					IBRCOMMON_LOGGER_TAG(Registration::TAG, warning) << "No key available for sign process." << IBRCOMMON_LOGGER_ENDL;
				}
			}
#endif

			// get the payload size maximum
			size_t maxPayloadLength = dtn::daemon::Configuration::getInstance().getLimit("payload");

			// check if fragmentation is enabled
			// do not try pro-active fragmentation if the payload length is not limited
			if (dtn::daemon::Configuration::getInstance().getNetwork().doFragmentation() && (maxPayloadLength > 0))
			{
				try {
					std::list<dtn::data::Bundle> fragments;

					dtn::core::FragmentManager::split(bundle, maxPayloadLength, fragments);

					//for each fragment raise bundle received event
					for(std::list<dtn::data::Bundle>::iterator it = fragments.begin(); it != fragments.end(); ++it)
					{
						// raise default bundle received event
						dtn::net::BundleReceivedEvent::raise(source, *it, true);
					}

					return;
				} catch (const FragmentationProhibitedException&) {
				} catch (const FragmentationNotNecessaryException&) {
				} catch (const FragmentationAbortedException&) {
					// drop the bundle
					return;
				}
			}

//.........这里部分代码省略.........