This class produces items sent to peers over network. More...

#include <protocol_message_formatter.h>

Static Public Member Functions
static QByteArray	nodeGreeting (const Node &aNode)

static QByteArray	randomNumbers (void)

static QByteArray	requestForNodesAroundHash (const Hash &aHash)

static QByteArray	requestForBinaryBlob (const Hash &aHash)

static QByteArray	requestForUserProfile (const Hash &aHash)

static QByteArray	requestForUserProfileComment (const Hash &aIndividualCommentHash)

static QByteArray	requestForClassifiedAd (const Hash &aHash)

static QByteArray	requestForPrivateMessages (const Hash &aMessageHash)

static QByteArray	requestForPrivateMessagesForProfile (const Hash &aProfileHash, const quint32 aTimeOfOldestMsgToSend)

static QByteArray	requestForProfileComments (const Hash &aCommentedProfileHash, const quint32 aTimeOfOldestMsgToSend)

static QByteArray	requestForAdsClassified (const Hash &aHashOfClassification, const quint32 aStartingTimestamp, const quint32 aEndingTimestamp)

static QByteArray	contentPublish (const unsigned char aContentMagicNumber, const Hash &aContentHash, const QByteArray &aContent, const QByteArray &aSignature, const QList< quint32 > &aBangPath, const QByteArray &aSigningKey, bool aIsContentEncrypted, bool aIsContentCompressed, quint32 aTimeStamp)

static QByteArray	privMsgPublish (const Hash &aContentHash, const QByteArray &aContent, const QByteArray &aSignature, const QList< quint32 > &aBangPath, const Hash &aDestination, const Hash &aRecipient, quint32 aTimeStamp)

static QByteArray	privMsgSend (const Hash &aContentHash, const QByteArray &aContent, const QByteArray &aSignature, const Hash &aDestination, const Hash &aRecipient, quint32 aTimeStamp)

static QByteArray	profileCommentPublish (const Hash &aContentHash, const QByteArray &aContent, const QByteArray &aSignature, const QList< quint32 > &aBangPath, const Hash &aProfileCommented, quint32 aTimeStamp, quint32 aFlags)

static QByteArray	profileCommentSend (const Hash &aContentHash, const QByteArray &aContent, const QByteArray &aSignature, const Hash &aProfileCommented, quint32 aTimeStamp, quint32 aFlags)

static QByteArray	contentSend (const unsigned char aContentMagicNumber, const Hash &aContentHash, const QByteArray &aContent, const QByteArray &aSignature, const QByteArray &aSigningKey, bool aIsContentEncrypted, bool aIsContentCompressed, quint32 aTimeStamp)

static QByteArray	replyToAdsClassified (const Hash &aClassificationHash, const QList< QPair< Hash, quint32 > > &aListOfAds)

static QByteArray	searchSend (const QString &aSearch, bool aSearchAds, bool aSearchProfiles, bool aSearchComments, const Hash &aSearchIdentifier)

static QByteArray	searchResultsSend (const QList< SearchModel::SearchResultItem > &aResults, quint32 aSearchId)

static QByteArray	voiceCall (const VoiceCall &aCall, MController &aController, const Hash &aSelectedProfile, bool aDoSign=true)

static QByteArray	voiceCallRtData (quint32 aCallId, quint32 aSeqNo, VoiceCallEngine::PayloadType aPayloadType, const QByteArray &aPayload)

Static Private Member Functions
static QByteArray	doContentSendOrPublish (QByteArray &retval, const unsigned char aContentMagicNumber, const Hash &aContentHash, const QByteArray &aContent, const QByteArray &aSignature, const QList< quint32 > &aBangPath, const QByteArray &aSigningKey, bool aIsContentEncrypted, bool aIsContentCompressed, quint32 aTimeStamp, bool aIsPublish)

static QByteArray	doCommentSendOrPublish (const Hash &aContentHash, const QByteArray &aContent, const QByteArray &aSignature, const QList< quint32 > &aBangPath, const Hash &aProfileCommented, quint32 aTimeStamp, quint32 aFlags, bool aIsPublish)

Detailed Description

This class produces items sent to peers over network.

Class that contains (static) methods for producing byte-streams of various messages.

Member Function Documentation

static QByteArray ProtocolMessageFormatter::contentPublish	(	const unsigned char	aContentMagicNumber,
		const Hash &	aContentHash,
		const QByteArray &	aContent,
		const QByteArray &	aSignature,
		const QList< quint32 > &	aBangPath,
		const QByteArray &	aSigningKey,
		bool	aIsContentEncrypted,
		bool	aIsContentCompressed,
		quint32	aTimeStamp
	)

static

method for producing byte-array containing (some) published content

Parameters

aContentMagicNumber	tells what kind of item this is. For example KProfilePublish (from protocol.h) if we're publishing a profile here
aContentHash	hash of the content to be published. Reason this Hash here is given explicitly is that different object types have different hashing methods - for binary blob it is the content itself that makes the hash but for profile it is the fingerprint of the signing key etc.
aContent	actual content
aSignature	signature verifying aContent
aBangPath	list of low-order bits of hosts where this content has already been seen, 5 at max
aSigningKey	contains public encryption key used to sign the content ; while it over time will be mostly overhead it anyway allows reader to reach the poster that is great advantage over some overhead..
aIsContentEncrypted	is true of aContent is protected with encryption
aIsContentCompressed	is true of aContent is inside qCompress. if both compress+encryption, naturally the content is first compressed, only after that encrypted
aTimeStamp	may be given for content where actual timestamp is inside encryption

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::contentSend	(	const unsigned char	aContentMagicNumber,
		const Hash &	aContentHash,
		const QByteArray &	aContent,
		const QByteArray &	aSignature,
		const QByteArray &	aSigningKey,
		bool	aIsContentEncrypted,
		bool	aIsContentCompressed,
		quint32	aTimeStamp
	)

static

this is almost same as .contentPublish but is reply to another node regarding request of content, not users own publishing so this has no bangpath but otherwise this behaves in about same way.

static QByteArray ProtocolMessageFormatter::doCommentSendOrPublish	(	const Hash &	aContentHash,
		const QByteArray &	aContent,
		const QByteArray &	aSignature,
		const QList< quint32 > &	aBangPath,
		const Hash &	aProfileCommented,
		quint32	aTimeStamp,
		quint32	aFlags,
		bool	aIsPublish
	)

staticprivate

workhorse of .profileCommentPublish and .profileCommentSend has parameter telling which action to take

static QByteArray ProtocolMessageFormatter::doContentSendOrPublish	(	QByteArray &	retval,
		const unsigned char	aContentMagicNumber,
		const Hash &	aContentHash,
		const QByteArray &	aContent,
		const QByteArray &	aSignature,
		const QList< quint32 > &	aBangPath,
		const QByteArray &	aSigningKey,
		bool	aIsContentEncrypted,
		bool	aIsContentCompressed,
		quint32	aTimeStamp,
		bool	aIsPublish
	)

staticprivate

workhorse of .contentPublish and .contentSend has parameter telling which action to take

static QByteArray ProtocolMessageFormatter::nodeGreeting ( const Node & aNode )

static

method for producing node greeting message

Parameters

aNode is greeting about the node concerned, usually "this" node

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::privMsgPublish	(	const Hash &	aContentHash,
		const QByteArray &	aContent,
		const QByteArray &	aSignature,
		const QList< quint32 > &	aBangPath,
		const Hash &	aDestination,
		const Hash &	aRecipient,
		quint32	aTimeStamp
	)

static

separate publish-formatter for private messages as they're quite different from rest of the content

static QByteArray ProtocolMessageFormatter::privMsgSend	(	const Hash &	aContentHash,
		const QByteArray &	aContent,
		const QByteArray &	aSignature,
		const Hash &	aDestination,
		const Hash &	aRecipient,
		quint32	aTimeStamp
	)

static

separate send-formatter for private messages as they're quite different from rest of the content. Similar to publish but no bangpath

static QByteArray ProtocolMessageFormatter::profileCommentPublish	(	const Hash &	aContentHash,
		const QByteArray &	aContent,
		const QByteArray &	aSignature,
		const QList< quint32 > &	aBangPath,
		const Hash &	aProfileCommented,
		quint32	aTimeStamp,
		quint32	aFlags
	)

static

separate publish-formatter for profile comments as they're quite different from rest of the content. in case of comments for public profiles they behave a bit like classified ads but comments commenting private profiles need to behave more-or-less like private messages as that's what they are ; private messages with more than 1 recipient .. or it is possible to have private profile with 0 readers and then comment it self. monologue ensues.

static QByteArray ProtocolMessageFormatter::profileCommentSend	(	const Hash &	aContentHash,
		const QByteArray &	aContent,
		const QByteArray &	aSignature,
		const Hash &	aProfileCommented,
		quint32	aTimeStamp,
		quint32	aFlags
	)

static

separate send-formatter for profile comment as they're quite different from rest of the content.

static QByteArray ProtocolMessageFormatter::randomNumbers ( void )

static

method for producing random number message

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::replyToAdsClassified	(	const Hash &	aClassificationHash,
		const QList< QPair< Hash, quint32 > > &	aListOfAds
	)

static

static QByteArray ProtocolMessageFormatter::requestForAdsClassified	(	const Hash &	aHashOfClassification,
		const quint32	aStartingTimestamp,
		const quint32	aEndingTimestamp
	)

static

Classified ads have classification, the "intent-object-location" triplet shown in UI and it also has a hash. When user chooses this triplet, it might be nice to query surrounding nodes about classified ads regarding that triplet. This method is for sending such a request. Its response will contain hashes of the ads in that classification, possibly followed by the articles too.

Parameters

aHashOfClassification	hash calculated over "intent-object-location" string
aStartingTimestamp	possible starting timestamp for the articles. Currently not implemented in protocol, sender will limit the number of ads it sends
aEndingTimestamp	possible ending timestamp for the articles Currently not implemented in protocol, sender will limit the number of ads it sends

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::requestForBinaryBlob ( const Hash & aHash )

static

method for producing binary blob request message

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::requestForClassifiedAd ( const Hash & aHash )

static

method for producing operator classified ad request message

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::requestForNodesAroundHash ( const Hash & aHash )

static

method for producing nodegreeting request message

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::requestForPrivateMessages ( const Hash & aMessageHash )

static

method for sending request to other nodes regarding private messages having given hash

Parameters

aProfileHash hash of message that is to be found

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::requestForPrivateMessagesForProfile	(	const Hash &	aProfileHash,
		const quint32	aTimeOfOldestMsgToSend
	)

static

method for sending request to other nodes regarding private messages destined to given profile

Parameters

aProfileHash	hash of profile whose messages are searched
aTimeOfOldesMsgToSend	since when to send msgs from

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::requestForProfileComments	(	const Hash &	aCommentedProfileHash,
		const quint32	aTimeOfOldestMsgToSend
	)

static

method for sending request to other nodes regarding comments about specified profile. in practice parser (upon receipt) will make calls that check not only for new comments, but also if there has been an update at the profile itself. Call to this method is result of RequestForProfilePoll being put into network request queue.

Parameters

aCommentedProfileHash	hash of profile whose comments are searched
aTimeOfOldesMsgToSend	since when to send comments from

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::requestForUserProfile ( const Hash & aHash )

static

method for producing operator profile request message

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::requestForUserProfileComment ( const Hash & aIndividualCommentHash )

static

method for producing message to other node that asks it to send an individual profile comment

Returns: bytearray that is ready to be sent over socket so that other end will understand.

static QByteArray ProtocolMessageFormatter::searchResultsSend	(	const QList< SearchModel::SearchResultItem > &	aResults,
		quint32	aSearchId
	)

static

method for formatting a network search results

static QByteArray ProtocolMessageFormatter::searchSend	(	const QString &	aSearch,
		bool	aSearchAds,
		bool	aSearchProfiles,
		bool	aSearchComments,
		const Hash &	aSearchIdentifier
	)

static

method for formatting a network search query

static QByteArray ProtocolMessageFormatter::voiceCall	(	const VoiceCall &	aCall,
		MController &	aController,
		const Hash &	aSelectedProfile,
		bool	aDoSign = `true`
	)

static

Method for formatting voice call status object

Parameters

aCall	is the call status object
aController	is application controller instance
aSelectedProfile	is hash of the profile who will sign the serialized object
aDoSign	if set to true, normal signature will be added. If false, zero-len signature will be used.

Returns: serialized bytes of call status

static QByteArray ProtocolMessageFormatter::voiceCallRtData	(	quint32	aCallId,
		quint32	aSeqNo,
		VoiceCallEngine::PayloadType	aPayloadType,
		const QByteArray &	aPayload
	)

static

Method for formatting voice call real-time data like audio

Parameters

aCallId	call (stream) identifier
aSeqNo	sequence number of payload in stream
aPayloadType	type payload
aPayload	actual payload bytes to send, like call audio

Returns: serialized bytes of call status

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

/tmp/classified-ads/classified_ads/net/protocol_message_formatter.h

Static Public Member Functions

Static Private Member Functions

Detailed Description

Member Function Documentation