Class containing routines for parsing protocol messages. Methods are mainly called from network connection instances and this class will forward the parsed protocol entities to datamodel. More...

#include <protocol_message_parser.h>

Inheritance diagram for ProtocolMessageParser:

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Collaboration diagram for ProtocolMessageParser:

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Public Member Functions
	ProtocolMessageParser (MController &aController, MModelProtocolInterface &aModel)

bool	parseMessage (const QByteArray &aGoodFood, Connection &aConnection)

Private Member Functions
bool	parseNodeGreetingV1 (const QByteArray &aSingleNodeGreeting, const Connection &aConnection)

bool	parseMultipleNodeGreetingsV1 (const QByteArray &aGoodFood, const Connection &aConnection)

bool	uintFromPosition (const QByteArray &aGoodFood, const int aPos, quint32 *aResult) const

bool	hashFromPosition (const QByteArray &aGoodFood, const int aPos, Hash *aResultHash) const

bool	parseRequestForObjectsAroundHash (const QByteArray &aNodeRefRequest, const Connection &aConnection)

bool	parseContentPublishedOrSent (const unsigned char aProtocolItemType, const QByteArray &aPublishedContent, const Connection &aConnection)

bool	parsePrivMsgPublishedOrSent (const unsigned char aProtocolItemType, const QByteArray &aPublishedContent, const Connection &aConnection)

bool	parseProfileCommentPublishedOrSent (const unsigned char aProtocolItemType, const QByteArray &aPublishedContent, const Connection &aConnection)

bool	parseAdsClassifiedAtHash (const QByteArray &aQueryBytes, const Connection &aConnection)

bool	parseListOfAdsClassifiedAtHash (const QByteArray &aQueryBytes, const Connection &aConnection)

bool	parseSearchRequest (const QByteArray &aQueryBytes, Connection &aConnection)

bool	parseSearchResults (const QByteArray &aQueryBytes, const Connection &aConnection)

Private Attributes
MController &	iController

MModelProtocolInterface &	iModel

Detailed Description

Class containing routines for parsing protocol messages. Methods are mainly called from network connection instances and this class will forward the parsed protocol entities to datamodel.

Constructor & Destructor Documentation

ProtocolMessageParser::ProtocolMessageParser	(	MController &	aController,
		MModelProtocolInterface &	aModel
	)

Member Function Documentation

bool ProtocolMessageParser::hashFromPosition	(	const QByteArray &	aGoodFood,
		const int	aPos,
		Hash *	aResultHash
	)		const

private

utility method: extract hash from bytearray.

Parameters

aGoodFood	is the bytearray from which to extract
aPos	is the position where integer is expected to be found
aResultHash	is the hash that will have its value set from contents of aGoodFood

Returns: true if success

bool ProtocolMessageParser::parseAdsClassifiedAtHash	(	const QByteArray &	aQueryBytes,
		const Connection &	aConnection
	)

private

method for parsing request that requests for classified ads whose classification matches given hash

Parameters

aQueryBytes	contains the query
aConnection	is the requester

bool ProtocolMessageParser::parseContentPublishedOrSent	(	const unsigned char	aProtocolItemType,
		const QByteArray &	aPublishedContent,
		const Connection &	aConnection
	)

private

Method for parsing published content. Content-type is given as parameter ; single method as the structure is anyway same, handling is different..

This method is also used to parse content sent ; it differs from published content so, that it has no bangpath but otherwise the format is the same.

bool ProtocolMessageParser::parseListOfAdsClassifiedAtHash	(	const QByteArray &	aQueryBytes,
		const Connection &	aConnection
	)

private

Method for parsing list of headers of classified ads. In practice this parses the protocol message sent with id KListOfAdsClassifiedAtHash.

bool ProtocolMessageParser::parseMessage	(	const QByteArray &	aGoodFood,
		Connection &	aConnection
	)

the open mouth

Parameters

aGoodFood is the message

Returns: false if such a fatal error that peer needs to be disconnected

bool ProtocolMessageParser::parseMultipleNodeGreetingsV1	(	const QByteArray &	aGoodFood,
		const Connection &	aConnection
	)

private

Peer number of hello messages

Parameters

aGoodFood	at least one node greeting
aConnection	the orignating connection

bool ProtocolMessageParser::parseNodeGreetingV1	(	const QByteArray &	aSingleNodeGreeting,
		const Connection &	aConnection
	)

private

Peer hello message

bool ProtocolMessageParser::parsePrivMsgPublishedOrSent	(	const unsigned char	aProtocolItemType,
		const QByteArray &	aPublishedContent,
		const Connection &	aConnection
	)

private

Method for parsing published private message. Does about same work as parseContentPublishedOrSent but structure of private messages is somewhat different.

bool ProtocolMessageParser::parseProfileCommentPublishedOrSent	(	const unsigned char	aProtocolItemType,
		const QByteArray &	aPublishedContent,
		const Connection &	aConnection
	)

private

Method for parsing published profile comments. Does about same work as parseContentPublishedOrSent but structure of profile commentss is somewhat different.

bool ProtocolMessageParser::parseRequestForObjectsAroundHash	(	const QByteArray &	aNodeRefRequest,
		const Connection &	aConnection
	)

private

Method for parsing request to send one or more objects specified by a hash.

bool ProtocolMessageParser::parseSearchRequest	(	const QByteArray &	aQueryBytes,
		Connection &	aConnection
	)

private

Method for parsing a search request from remote node. If parse is succesful, this method will also ask searchmodel to perform the search and place possible results immediately into send-queue of aConnection so search works slightly differently compared to rest of the network requests

Parameters

aQueryBytes	serialized query-description
aConnection	is connection of the node who sent the request

Returns: true if things went all right.

bool ProtocolMessageParser::parseSearchResults	(	const QByteArray &	aQueryBytes,
		const Connection &	aConnection
	)

private

Method for parsing a search result from remote node. In this case this node made a search request and this is reply (containing list of objects matching the query).

Parameters

aQueryBytes	serialized query-description
aConnection	is connection of the node who sent the request

Returns: true if things went all right.

bool ProtocolMessageParser::uintFromPosition	(	const QByteArray &	aGoodFood,
		const int	aPos,
		quint32 *	aResult
	)		const

private

utility method: extract integer from bytearray. integer will be returned in host byte order e.g.

Parameters

aGoodFood	is the bytearray from which to extract
aPos	is the position where integer is expected to be found
aResult	is the quint32 where result will be written e.g. this is the output variable

Returns: true if reading succeeded

Member Data Documentation

MController& ProtocolMessageParser::iController

private

MModelProtocolInterface& ProtocolMessageParser::iModel

private

The documentation for this class was generated from the following file:

/tmp/classified_ads/net/protocol_message_parser.h

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation