client

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README

FR Client Library

Testing

E2E testing requires a running server configured with ln payments. It assumes the dcrlnd three-node tmux environment is running.

$ go run ./brserver -cfg client/e2e-legacy-ln-server.conf
$ go test -count=1 -run TestE2E -tags e2elegacylntest -v ./client/ | tee /tmp/out.txt

Architecture

The diagram below shows the major layers of the client. Depicted is Alice sending a message while Bob is receiving it.

                                                                                                                                                
                            Alice                      server                        Bob        
                                                                                                
                                                                                                
                        +----------+                                              +----------+  
                        |  Client  |                                              |  Client  |  
                        +----------+                                              +----------+  
                              |                                                         |       
                              |                                                         |       
                              |                                                         |       
                       +------------+                                            +------------+ 
                       | RemoteUser | . . . . . . . . . . . . . . . . . . . . .  | RemoteUser | 
                       +------------+                                            +------------+ 
                              |                                                         |       
                              |                                                         |       
                              |                                                         |       
                         +---------+             +-----------------+           +---------------+
                         |   rmq   | . . . . . . |  subscriptions  |. . . . . .   rdzvManager  |
                         +---------+             +-----------------+           +---------------+
                              |                           |                             |       
                              |                           |                             |       
                              |                           |                             |       
                     +-----------------+         +------------------+         +---------|-------+
          ---------->|  serverSession  | . . . . |  client session  | . . . . |  serverSession  |
         /           +-----------------+         +------------------+         +-----------------+
        /               /     |                           |                             |    
+-------------+        /      |                           |                             |    
| connKeeper  |<-------       |                           |                             |    
+-------------+           +-------+                   +-------+                     +-------+
                          |  net  |-------------------|  net  |-------------------- |  net  |
                          +-------+                   +-------+                     +-------+

Each layer has certain specific responsibilities and attempts to maintain certain invariants for the other layers:

  • net: Lower-level network connection (currently TLS)
  • connKeeper: Attempts to keep an open connection to the server. Whenever a new connection is made, a new instance of serverSession is created
  • serverSession: Maintains the tag stack invariant (max inflight, non-acked messages to the server), encrypts/decrypts the wire msgs w/ the per-session key
  • rmq: outbound RoutedMessages queue; pays for each outbound RM before sending it, encrypts each RM according to its type (clear text, kx, ratchet)
  • rdzvManager: Rendezvous Manager, is the inbound RM queue; ensures the client is subscribed to the appropriate RV points in the server as needed and decides which remoteUser to call for every pushed RM
  • RemoteUser: holds the ratchet state for each user the client has completed a kx flow with and progresses it as RMs are sent and received. Also implements per-user higher level calls (send/receive PMs, files, etc)

Each layer is tipically implemented as a runnable state machine, where its API is (usually) synchronous and concurrent-safe and actions are performed in its run() call.

The main public-facing structures of this package are Config and Client. Consumers (e.g. a GUI or CLI client app) setup a Config instance as needed, create a new client instance and run it. The client will maintain its operations until one of its subsystems fail (in which case Run() returns with an error) or the context is canceled.

Documentation

Overview

Package client implements a CR complient client.

The diagram below shows the major layers of the client. Depicted is Alice sending a message while Bob is receiving it. 

                            Alice                      server                        Bob

                        +----------+                                              +----------+
                        |  Client  |                                              |  Client  |
                        +----------+                                              +----------+
                              |                                                         |
                              |                                                         |
                              |                                                         |
                       +------------+                                            +------------+
                       | RemoteUser | . . . . . . . . . . . . . . . . . . . . .  | RemoteUser |
                       +------------+                                            +------------+
                              |                                                         |
                              |                                                         |
                              |                                                         |
                         +---------+             +-----------------+           +---------------+
                         |   rmq   | . . . . . . |  subscriptions  |. . . . . .|  rdzvManager  |
                         +---------+             +-----------------+           +---------------+
                              |                           |                             |
                              |                           |                             |
                              |                           |                             |
                     +-----------------+         +------------------+         +-----------------+
          ---------->|  serverSession  | . . . . |  client session  | . . . . |  serverSession  |
         /           +-----------------+         +------------------+         +-----------------+
        /               /     |                           |                             |
+-------------+        /      |                           |                             |
| connKeeper  |<-------       |                           |                             |
+-------------+           +-------+                   +-------+                     +-------+
                          |  net  |-------------------|  net  |-------------------- |  net  |
                          +-------+                   +-------+                     +-------+

Each layer has certain specific responsibilities and attempts to maintain certain invariants for the other layers:

  • `net`: Lower-level network connection (currently TLS)

  • `connKeeper`: Attempts to keep an open connection to the server. Whenever a new connection is made, a new instance of `serverSession` is created

  • `serverSession`: Maintains the tag stack invariant (max inflight, non-acked messages to the server), encrypts/decrypts the wire msgs w/ the per-session key

  • `rmq`: outbound RoutedMessages queue; pays for each outbound RM before sending it, encrypts each RM according to its type (clear text, kx, ratchet)

  • `rdzvManager`: Rendezvous Manager, is the inbound RM queue; ensures the client is subscribed to the appropriate RV points in the server as needed and decides which `remoteUser` to call for every pushed RM

  • `RemoteUser`: holds the ratchet state for each user the client has completed a kx flow with and progresses it as RMs are sent and received. Also implements per-user higher level calls (send/receive PMs, files, etc)

Each layer is tipically implemented as a runnable state machine, where its API is (usually) synchronous and concurrent-safe and actions are performed in its `run()` call.

The main public-facing structures of this package are `Config` and `Client`. Consumers (e.g. a GUI or CLI client app) setup a `Config` instance as needed, create a new client instance and run it. The client will maintain its operations until one of its subsystems fail (in which case `Run()` returns with an error) or the context is canceled.

Index

Constants

View Source 
const (
	TEMediateID      = "mediate identity"
	TERequestInvite  = "request invite"
	TEReceivedInvite = "received invite"
	TEMsgForward     = "message forward"
	TEResetRequest   = "reset request"
	TEResetReply     = "reset reply"
)
View Source 
const (
	ErrUnableToQueryNode  = WalletUsableErrorKind("ErrUnableToQueryNode")
	ErrNoPeers            = WalletUsableErrorKind("ErrNoPeers")
	ErrLowOutboundBalance = WalletUsableErrorKind("ErrLowOutboundBalance")
	ErrTooOldBlockchain   = WalletUsableErrorKind("ErrTooOldBlockchain")
	ErrNoActiveChannels   = WalletUsableErrorKind("ErrNoActiveChannels")
	ErrNoRouteToServer    = WalletUsableErrorKind("ErrNoRouteToServer")
	ErrUnableToPingPeers  = WalletUsableErrorKind("ErrUnableToPingPeers")
)

Variables

This section is empty.

Functions

func CheckLNWalletUsable 

func CheckLNWalletUsable(ctx context.Context, lc lnrpc.LightningClient, svrNode string) error

CheckLNWalletUsable checks whether the given ln wallet is synced and is usable for sending payments to the given server LN node.

func PaymentFeeLimit 

func PaymentFeeLimit(amountMAtoms uint64) *lnrpc.FeeLimit

PaymentFeeLimit returns the fee limit to use when making a payment for BR nodes of the specified size.

func TrackWalletCheckEvents added in v0.1.8 

func TrackWalletCheckEvents(ctx context.Context, lnRPC lnrpc.LightningClient) (chan struct{}, error)

TrackWalletCheckEvents tracks events of the lightnint wallet that are relevant for wallet checks. Once an event is detected, the chan is written to. The checks are tracked until the context is done.

Types

type ChatHistoryEntry added in v0.1.8 

type ChatHistoryEntry struct {
	Message   string `json:"message"`
	From      string `json:"from"`
	Timestamp int64  `json:"timestamp"`
	Internal  bool   `json:"internal"`
}

ChatHistoryEntry contains information parsed from a single line in a chat log.

type Client 

type Client struct {
	// contains filtered or unexported fields
}

Client is the main state manager for a CR client connection. It attempts to maintain an active connection to a CR server and manages the internal state of a client, including remote users it's connected to.

func New 

func New(cfg Config) (*Client, error)

New creates a new CR client with the given config.

func (*Client) AcceptGroupChatInvite 

func (c *Client) AcceptGroupChatInvite(iid uint64) error

AcceptGroupChatInvite accepts the given invitation, previously received from some user.

func (*Client) AcceptInvite 

func (c *Client) AcceptInvite(invite rpc.OOBPublicIdentityInvite) error

AcceptInvite blocks until the remote party reponds with us accepting the remote party's invitation. The invite should've been created by ReadInvite.

func (*Client) AddInviteOnKX added in v0.1.6 

func (c *Client) AddInviteOnKX(initialRV, gcID zkidentity.ShortID) error

AddInviteOnKX adds a post kx action, based on the initial rv, that invites the user to the given groupchat.

func (*Client) AddToGCBlockList 

func (c *Client) AddToGCBlockList(gcid zkidentity.ShortID, uid UserID) error

AddToGCBlockList adds the user to the block list of the specified GC. This user will no longer be sent messages from the local client in the given GC and messages from this user will not generate GCMessage events.

func (*Client) AddressBook 

func (c *Client) AddressBook() []*clientdb.AddressBookEntry

AddressBook returns the full address book of remote users.

func (*Client) AddressBookEntry added in v0.1.9 

func (c *Client) AddressBookEntry(uid UserID) (*clientdb.AddressBookEntry, error)

AddressBookEntry returns the address book information of a given user.

func (*Client) AliasGC 

func (c *Client) AliasGC(gcID zkidentity.ShortID, newAlias string) error

AliasGC replaces the local alias of a GC for a new one.

func (*Client) Backup added in v0.1.8 

func (c *Client) Backup(_ context.Context, rootDir, destPath string) (string, error)

Backup

func (*Client) Block 

func (c *Client) Block(uid UserID) error

Block blocks a uid.

func (*Client) CancelOnboarding added in v0.1.7 

func (c *Client) CancelOnboarding() error

CancelOnboarding stops the currently running onboarding and removes it from the client.

func (*Client) ClearPayStats 

func (c *Client) ClearPayStats(uid *UserID) error

ClearPayStats removes the payment stats associated with the given user. If nil is passed, then the payment stats for all users are cleared.

func (*Client) CommentPost 

func (c *Client) CommentPost(postFrom clientintf.UserID, pid clientintf.PostID,
	comment string, parent *clientintf.ID) (clientintf.ID, error)

CommentPost sends a comment status update on the received post.

func (*Client) CreatePost 

func (c *Client) CreatePost(post, descr string) (clientdb.PostSummary, error)

CreatePost creates a new post and shares it with all current subscribers.

func (*Client) CreatePrepaidInvite added in v0.1.7 

func (c *Client) CreatePrepaidInvite(w io.Writer, funds *rpc.InviteFunds) (rpc.OOBPublicIdentityInvite, clientintf.PaidInviteKey, error)

CreatePrepaidInvite creates a new invite and pushes it to the server, pre-paying for the remote user to download it.

func (*Client) FetchLocalResource added in v0.1.8 

func (c *Client) FetchLocalResource(path []string, meta map[string]string, data json.RawMessage) error

FetchLocalResource fetches the local resource and triggers a correspoding ResourceFetched call.

func (*Client) FetchPrepaidInvite added in v0.1.7 

func (c *Client) FetchPrepaidInvite(ctx context.Context, key clientintf.PaidInviteKey, w io.Writer) (rpc.OOBPublicIdentityInvite, error)

FetchPrepaidInvite fetches a pre-paid invite from the server, using the specified key as decryption key.

func (*Client) FetchResource added in v0.1.8 

func (c *Client) FetchResource(uid UserID, path []string, meta map[string]string,
	sess, parentPage clientintf.PagesSessionID, data json.RawMessage) (rpc.ResourceTag, error)

FetchResource requests the specified resource from the client. Once the resource is returned the ResourceFetched handler will be called with the response using the returned tag.

func (*Client) FillTestInterface added in v0.1.8 

func (c *Client) FillTestInterface(i *testutils.UnsafeTestInterface)

FillTestInterface prepares the unsafe test interface. This should not be used except in internal tests.

func (*Client) FilterGCM added in v0.1.8 

func (c *Client) FilterGCM(uid UserID, gcid zkidentity.ShortID, msg string) (bool, uint64)

FilterGCM returns true if the GCM sent by the specified user in the GC should be filtered.

func (*Client) FilterPM added in v0.1.8 

func (c *Client) FilterPM(uid UserID, msg string) (bool, uint64)

FilterPM returns true if the pm sent by the specified user should be filtered.

func (*Client) FilterPost added in v0.1.8 

func (c *Client) FilterPost(uid UserID, pid clientintf.PostID, post string) (bool, uint64)

FilterPost returns true if the post sent by the specified user should be filtered.

func (*Client) FilterPostComment added in v0.1.8 

func (c *Client) FilterPostComment(uid, postFrom UserID, pid clientintf.PostID, comment string) (bool, uint64)

FilterPostComment returns true if the post comment sent by the specified user should be filtered.

func (*Client) FindSharedFileID 

func (c *Client) FindSharedFileID(fname string) (clientdb.FileID, error)

FindSharedFileID finds the file ID of a shared file with the given filename.

func (*Client) GCIDByName 

func (c *Client) GCIDByName(name string) (zkidentity.ShortID, error)

GCIDByName returns the GC ID of the local GC with the given name. The name can be either a local GC alias or a full hex GC ID.

func (*Client) GCKick 

func (c *Client) GCKick(gcID zkidentity.ShortID, uid UserID, reason string) error

GCKick kicks the given user from the GC. This only works if we're the gc admin.

func (*Client) GCMessage 

func (c *Client) GCMessage(gcID zkidentity.ShortID, msg string, mode rpc.MessageMode,
	progressChan chan SendProgress) error

GCMessage sends a message to the given GC. If progressChan is not nil, events are sent to it as the sending process progresses. Writes to progressChan are serial, so it's important that it not block indefinitely.

func (*Client) GCsWithMember added in v0.1.8 

func (c *Client) GCsWithMember(uid UserID) ([]zkidentity.ShortID, error)

GCsWithMember returns a list of GCs that have the specified UID as a member.

func (*Client) GCsWithPrefix added in v0.1.6 

func (c *Client) GCsWithPrefix(prefix string) []string

GCsWithPrefix returns a list of GC aliases that have the specified prefix.

func (*Client) GetGC 

func (c *Client) GetGC(gcID zkidentity.ShortID) (rpc.RMGroupList, error)

GetGC returns information about the given gc the local user participates in.

func (*Client) GetGCAlias 

func (c *Client) GetGCAlias(gcID zkidentity.ShortID) (string, error)

GetGCAlias returns the local alias for the specified GC.

func (*Client) GetGCBlockList 

func (c *Client) GetGCBlockList(gcID zkidentity.ShortID) (clientdb.GCBlockList, error)

GetGCBlockList returns the blocklist of the given GC.

func (*Client) GetKXSearch 

func (c *Client) GetKXSearch(targetID UserID) (clientdb.KXSearch, error)

GetKXSearch returns the KX search status for the given target.

func (*Client) GetUserContent 

func (c *Client) GetUserContent(uid UserID, fid clientdb.FileID) error

GetUserContent starts the process to fetch the given file from the remote user.

func (*Client) GetUserPost 

func (c *Client) GetUserPost(from UserID, pid clientintf.PostID, includeStatus bool) error

GetUserPost attempts to fetch the given post from the specified user. The post will be supplied in the PostReceived event of the client.

The includeStatus flag dictates whether to also request the associated status updates (comments, etc).

func (*Client) GoOnline 

func (c *Client) GoOnline()

GoOnline requests the client to connect to the server (if not yet connected) and to remain connected as long as possible (including by attempting to re-connect if the connection closes).

func (*Client) Handshake added in v0.1.8 

func (c *Client) Handshake(uid UserID) error

Handshake starts a 3-way handshake with the specified user. When the local client receives a SYNACK, it means the ratchet with the user is fully operational.

func (*Client) HasDownloadedFile 

func (c *Client) HasDownloadedFile(fid zkidentity.ShortID) (string, error)

HasDownloadedFile returns the path to a downloaded file if it exists.

func (*Client) HasPostSubscribers 

func (c *Client) HasPostSubscribers() (bool, error)

HasPostSubscribers returns true if the local client has subscribers to our posts.

func (*Client) HeartPost 

func (c *Client) HeartPost(from clientintf.UserID, pid clientintf.PostID, heart bool) error

HeartPost sends a status update, either adding or removing the current user's heart on the given received post.

func (*Client) Ignore 

func (c *Client) Ignore(uid UserID, ignore bool) error

Ignore changes the setting of the local ignore flag of the specified user.

func (*Client) InviteToGroupChat 

func (c *Client) InviteToGroupChat(gcID zkidentity.ShortID, user UserID) error

InviteToGroupChat invites the given user to the given gc. The local user must be the admin of the group and the remote user must have been KX'd with.

func (*Client) IsIgnored 

func (c *Client) IsIgnored(uid clientintf.UserID) (bool, error)

IsIgnored indicates whether the given client has the ignored flag set.

func (*Client) KXSearchPostAuthor 

func (c *Client) KXSearchPostAuthor(postFrom UserID, post clientintf.PostID) error

KXSearchPostAuthor attempts to start a new kx search for the author of the specified post.

func (*Client) KillGroupChat 

func (c *Client) KillGroupChat(gcID zkidentity.ShortID, reason string) error

KillGroupChat completely dissolves the group chat.

func (*Client) ListContentFilters added in v0.1.8 

func (c *Client) ListContentFilters() []clientdb.ContentFilter

ListContentFilters lists the active content filters.

func (*Client) ListDownloads 

func (c *Client) ListDownloads() ([]clientdb.FileDownload, error)

ListDownloads lists all outstanding downloads.

func (*Client) ListGCInvitesFor 

func (c *Client) ListGCInvitesFor(gcid *zkidentity.ShortID) ([]*clientdb.GCInvite, error)

ListGCInvitesFor returns all GC invites. If gcid is specified, only invites for the specified GC are returned.

func (*Client) ListGCs 

func (c *Client) ListGCs() ([]rpc.RMGroupList, error)

ListGCs lists all local GCs the user is participating in.

func (*Client) ListKXSearches 

func (c *Client) ListKXSearches() ([]UserID, error)

ListKXSearches lists the IDs of all outstanding KX searches.

func (*Client) ListKXs 

func (c *Client) ListKXs() ([]clientdb.KXData, error)

func (*Client) ListLocalSharedFiles 

func (c *Client) ListLocalSharedFiles() ([]clientdb.SharedFileAndShares, error)

ListLocalSharedFiles lists all locally shared files.

func (*Client) ListMediateIDs 

func (c *Client) ListMediateIDs() ([]clientdb.MediateIDRequest, error)

ListMediateIDs lists mediate id requests made by the local client.

func (*Client) ListPaymentStats 

func (c *Client) ListPaymentStats() (map[UserID]clientdb.UserPayStats, error)

ListPaymentStats returns the general payment stats for all users.

func (*Client) ListPostCommentReceiveReceipts added in v0.1.10 

func (c *Client) ListPostCommentReceiveReceipts(pid clientintf.PostID,
	statusID zkidentity.ShortID) ([]*clientdb.ReceiveReceipt, error)

ListPostCommentReceiveReceipts returns the receive receipts from a post comment that the local client has shared.

func (*Client) ListPostReceiveReceipts added in v0.1.10 

func (c *Client) ListPostReceiveReceipts(pid clientintf.PostID) ([]*clientdb.ReceiveReceipt, error)

ListPostReceiveReceipts returns the receive receipts from a post that the local client has shared.

func (*Client) ListPostStatusUpdates 

func (c *Client) ListPostStatusUpdates(from UserID, pid clientintf.PostID) ([]rpc.PostMetadataStatus, error)

ListPostStatusUpdates lists the status updates of the specified post.

func (*Client) ListPostSubscribers 

func (c *Client) ListPostSubscribers() ([]clientintf.UserID, error)

ListPostSubscribers lists the subscribers to the local client's posts.

func (*Client) ListPostSubscriptions 

func (c *Client) ListPostSubscriptions() ([]clientdb.PostSubscription, error)

ListPostSubscriptions lists remote users whose posts we are subscribed to.

func (*Client) ListPosts 

func (c *Client) ListPosts() ([]clientdb.PostSummary, error)

ListReceivedPosts lists all posts created or received by the local client.

func (*Client) ListRunningTipUserAttempts added in v0.1.8 

func (c *Client) ListRunningTipUserAttempts() ([]RunningTipUserAttempt, error)

ListRunningTipUserAttempts lists the currently running attempts at tipping remote users.

func (*Client) ListTipUserAttempts added in v0.1.7 

func (c *Client) ListTipUserAttempts(uid UserID) ([]clientdb.TipUserAttempt, error)

func (*Client) ListUserContent 

func (c *Client) ListUserContent(uid UserID, dirs []string, filter string) error

ListUserContent lists the content shared by the given remote user. Dirs must be one of the supported dirs (rpc.RMFTDGlobal or rpc.RMFTDShared).

func (*Client) ListUserPosts 

func (c *Client) ListUserPosts(uid UserID) error

ListUserPosts lists the posts made by the specified user.

func (*Client) ListUsersLastReceivedTime added in v0.1.4 

func (c *Client) ListUsersLastReceivedTime() ([]LastUserReceivedTime, error)

ListUsersLastReceivedTime returns the UID and time of last received message for all users.

func (*Client) LocalNick 

func (c *Client) LocalNick() string

LocalNick is the nick of this client.

func (*Client) ModifyGCAdmins added in v0.1.6 

func (c *Client) ModifyGCAdmins(gcid zkidentity.ShortID, extraAdmins []zkidentity.ShortID, reason string) error

ModifyGCAdmins modifies the admins of the GC.

func (*Client) ModifyGCOwner added in v0.1.10 

func (c *Client) ModifyGCOwner(gcid zkidentity.ShortID, newOwner clientintf.UserID,
	reason string) error

ModifyGCOwner changes the owner of a GC. The old owner still remains as a member of the GC (but not as admin).

func (*Client) NewGroupChat 

func (c *Client) NewGroupChat(name string) (zkidentity.ShortID, error)

NewGroupChat creates a group chat with the local client as admin.

func (*Client) NewGroupChatVersion added in v0.1.8 

func (c *Client) NewGroupChatVersion(name string, version uint8) (zkidentity.ShortID, error)

NewGroupChatVersion creates a new gc with the local user as admin and the specified version.

func (*Client) NewPagesSession added in v0.1.8 

func (c *Client) NewPagesSession() (clientintf.PagesSessionID, error)

func (*Client) NicksWithPrefix added in v0.1.6 

func (c *Client) NicksWithPrefix(prefix string) []string

NicksWithPrefix returns a list of nicks for users that have the specified prefix.

func (*Client) NotificationManager added in v0.1.4 

func (c *Client) NotificationManager() *NotificationManager

func (*Client) OnchainRecvAddrForUser added in v0.1.8 

func (c *Client) OnchainRecvAddrForUser(uid UserID, acct string) (string, error)

OnchainRecvAddrForUser returns the on-chain receive address of the local wallet associated with the specified user. If acct is specified, addresses are generated from that account.

func (*Client) PM 

func (c *Client) PM(uid UserID, msg string) error

PM sends a private message to the given user, identified by its public id. The user must have been already KX'd with for this to work.

func (*Client) PartFromGC 

func (c *Client) PartFromGC(gcID zkidentity.ShortID, reason string) error

PartFromGC withdraws the local client from the given GC.

func (*Client) PublicID 

func (c *Client) PublicID() UserID

PublicID is the public local identity of this client.

func (*Client) RMQLen 

func (c *Client) RMQLen() (int, int)

RMQLen is the number of outstanding messages in the outbound routed messages queue. There are two queues involved in the reply: msgs that are waiting to be sent and messages that are in the process of being paid/sent/ack.

func (*Client) RMQTimingStat added in v0.1.2 

func (c *Client) RMQTimingStat() []timestats.Quantile

RMQTimingStat returns the latest timing stats for the outbound RMQ.

func (*Client) RVsUpToDate 

func (c *Client) RVsUpToDate() bool

RVsUpToDate returns true if the subscriptions to remote RVs are up to date in the server.

func (*Client) ReadHistoryMessages added in v0.1.10 

func (c *Client) ReadHistoryMessages(uid UserID, gcName string, page, pageNum int) ([]ChatHistoryEntry, time.Time, error)

ReadHistoryMessages determines which log parsing to use based on whether a group chat name was provided in the arguments. This function will return an array of ChatHistoryEntry's that contain information from each line of saved logs.

func (*Client) ReadInvite 

func (c *Client) ReadInvite(r io.Reader) (rpc.OOBPublicIdentityInvite, error)

ReadInvite decodes an invite from the given reader. Note the invite is not acted upon until AcceptInvite is called.

func (*Client) ReadOnboard added in v0.1.7 

func (c *Client) ReadOnboard() (*clientintf.OnboardState, error)

ReadOnboard returns the existing onboard state.

func (*Client) ReadPost 

func (c *Client) ReadPost(uid clientintf.UserID, pid clientintf.PostID) (rpc.PostMetadata, error)

ReadReceivedPost returns the post data for the given user/post.

func (*Client) RelayPost 

func (c *Client) RelayPost(postFrom clientintf.UserID, pid clientintf.PostID,
	toUser clientintf.UserID) error

RelayPost sends the given post to the specified user.

func (*Client) RelayPostToSubscribers 

func (c *Client) RelayPostToSubscribers(postFrom clientintf.UserID, pid clientintf.PostID) error

RelayPostToSubscribers relays the specified post to all current post subscribers.

func (*Client) RemainOffline 

func (c *Client) RemainOffline()

RemainOffline requests the client to remain offline.

func (*Client) RemoveAllContentFilters added in v0.1.8 

func (c *Client) RemoveAllContentFilters() error

RemoveAllContentFilters removes all current content filters from the client.

func (*Client) RemoveContentFilter added in v0.1.8 

func (c *Client) RemoveContentFilter(id uint64) error

RemoveContentFilter removes the content filter. The filter immediately stops aplying to newly received messages.

func (*Client) RemoveFromGCBlockList 

func (c *Client) RemoveFromGCBlockList(gcid zkidentity.ShortID, uid UserID) error

AddToGCBlockList removes the user from the block list of the specified GC.

func (*Client) RenameUser 

func (c *Client) RenameUser(uid UserID, newNick string) error

RenameUser modifies the nick for the specified user.

func (*Client) RequestMediateIdentity 

func (c *Client) RequestMediateIdentity(mediator, target UserID) error

RequestMediateIdentity attempts to start a kx process with target by asking mediator for an introduction.

func (*Client) RequestTransitiveReset 

func (c *Client) RequestTransitiveReset(mediator, target UserID) error

func (*Client) ResendGCList added in v0.1.5 

func (c *Client) ResendGCList(gcid zkidentity.ShortID, uid *UserID) error

ResendGCList resends the GC list to a user. We must be the admin of the GC for this to be accepted by the remote user.

When the UID is not specified, the list is resent to all members.

func (*Client) ResetAllOldRatchets added in v0.1.4 

func (c *Client) ResetAllOldRatchets(limitInterval time.Duration, progrChan chan clientintf.UserID) ([]clientintf.UserID, error)

ResetAllOldRatchets starts the reset ratchet procedure with all users from which no message has been received for the passed limit duration.

If the interval is zero, then a default interval of 30 days is used.

If progrChan is specified, each individual reset that is started is reported in progrChan.

func (*Client) ResetRatchet 

func (c *Client) ResetRatchet(uid UserID) error

ResetRatchet requests a ratchet reset with the given user.

func (*Client) RetryOnboarding added in v0.1.7 

func (c *Client) RetryOnboarding() error

RetryOnboarding retries the onboarding at the current stage. The onboarding must have errored before this can be called.

func (*Client) Run 

func (c *Client) Run(ctx context.Context) error

Run runs all client goroutines until the given context is canceled.

Must only be called once.

func (*Client) SendFile 

func (c *Client) SendFile(uid UserID, filepath string) error

SendFile sends a file to the given user without requesting a payment for it.

func (*Client) ServerLNNode 

func (c *Client) ServerLNNode() string

ServerLNNode returns the LN Node ID of the server we're connected to. This can be empty if we're not connected to any servers.

func (*Client) ServerSession added in v0.1.10 

func (c *Client) ServerSession() clientintf.ServerSessionIntf

ServerSession returns the current server session the client is connected to. Returns nil if not connected to the server. Note this is set before a connection to the server is fully validated as usable.

func (*Client) ShareFile 

func (c *Client) ShareFile(fname string, uid *UserID,
	cost uint64, descr string,
) (clientdb.SharedFile, rpc.FileMetadata, error)

ShareFile shares the given filename with the given user (or to all users if none is specified).

Cost is in atoms.

func (*Client) SkipOnboardingStage added in v0.1.7 

func (c *Client) SkipOnboardingStage() error

SkipOnboardingStage skips the current onboarding stage to the next one. Not every stage is skippable.

func (*Client) StartOnboarding added in v0.1.7 

func (c *Client) StartOnboarding(key clientintf.PaidInviteKey) error

StartOnboarding starts a new onboarding procedure with the given key.

func (*Client) StoreContentFilter added in v0.1.8 

func (c *Client) StoreContentFilter(cf *clientdb.ContentFilter) error

StoreContentFilter adds or updates a content filter. The filter starts applying immediately to received messages.

func (*Client) SubscribeToPosts 

func (c *Client) SubscribeToPosts(uid UserID) error

SubscribeToPosts attempts to subscribe to the posts of the given user.

func (*Client) SubscribeToPostsAndFetch added in v0.1.6 

func (c *Client) SubscribeToPostsAndFetch(uid UserID, pid clientintf.PostID) error

SubscribeToPostsAndFetch attempts to subscribe to the posts of the given user and also (if successful) asks the user to send the specified post.

func (*Client) SuggestKX 

func (c *Client) SuggestKX(invitee, target UserID) error

SuggestKX sends a message to invitee suggesting they KX with target (through the local client).

func (*Client) SummarizeUserPayStats 

func (c *Client) SummarizeUserPayStats(uid UserID) ([]clientdb.PayStatsSummary, error)

SummarizeUserPayStats reads the payment stats file of the given user and returns a summary of what the payments were made and received in relation to the specified user.

func (*Client) TipUser 

func (c *Client) TipUser(uid UserID, dcrAmount float64, maxAttempts int32) error

TipUser starts an attempt to tip the user some amount of dcr. This dispatches a request for an invoice to the remote user, which once received will be paid.

By the time the invoice is received, the local client may or may not have enough funds to pay for it, so multiple attempts will be made to fetch and pay for an invoice.

func (*Client) UIDByNick 

func (c *Client) UIDByNick(nick string) (UserID, error)

UIDByNick returns the user ID associated with the given nick.

func (*Client) UnshareFile 

func (c *Client) UnshareFile(fid clientdb.FileID, uid *UserID) error

UnshareFile stops sharing the given file with the given user (or all users if unspecified).

func (*Client) UnsubscribeToPosts 

func (c *Client) UnsubscribeToPosts(uid UserID) error

UnsubscribeToPosts unsubscribes the local user to the posts made by the given remote user.

It returns when the remote user replies or when the client exits.

func (*Client) UpdateOnchainRecvAddrForUser added in v0.1.8 

func (c *Client) UpdateOnchainRecvAddrForUser(uid UserID, addr string) error

UpdateOnchainRecvAddrForUser updates the on-chain receive address of the local wallet associated with the specified user. If addr is nil, then the current address is removed.

func (*Client) UpgradeGC added in v0.1.6 

func (c *Client) UpgradeGC(gcid zkidentity.ShortID, newVersion uint8) error

UpgradeGC upgrades the version of the GC to the specified one. The local user must have permission to upgrade the GC.

func (*Client) UserByID 

func (c *Client) UserByID(uid UserID) (*RemoteUser, error)

UserByID returns the remote user of the given ID.

func (*Client) UserByNick 

func (c *Client) UserByNick(nick string) (*RemoteUser, error)

UserByNick returns the user identified by the given nick. Nick may be the actual user nick or a prefix of the user's ID (to disambiguate between users with the same nick).

func (*Client) UserExists 

func (c *Client) UserExists(id UserID) bool

func (*Client) UserNick 

func (c *Client) UserNick(uid UserID) (string, error)

UserNick returns the nick of the given user.

func (*Client) UserWithOnchainRecvAddr added in v0.1.8 

func (c *Client) UserWithOnchainRecvAddr(addr string) *UserID

UserWithOnchainRecvAddr returns the user that has the specified onchain receive address. If there is no user for the specified address, then this returns nil.

func (*Client) WriteNewInvite 

func (c *Client) WriteNewInvite(w io.Writer, funds *rpc.InviteFunds) (rpc.OOBPublicIdentityInvite, error)

WriteNewInvite creates a new invite and writes it to the given writer.

If the optional funds is specified, those funds will be redeemed by the remote user prior to accepting the invite.

type Config 

type Config struct {
	// ReconnectDelay is how long to wait between attempts to reconnect to
	// the server.
	ReconnectDelay time.Duration

	// PayClient identifies which payment scheme the client is configured
	// to use.
	PayClient clientintf.PaymentClient

	// LocalIDIniter is called when the client needs a new local identity.
	LocalIDIniter func(ctx context.Context) (*zkidentity.FullIdentity, error)

	// Dialer connects to the server. TLS is required.
	Dialer clientintf.Dialer

	// CompressLevel is the zlib compression level to use to compress
	// routed messages. Zero means no compression.
	CompressLevel int

	// DB instace for client operations. The client will call the Run()
	// method of the DB instance itself.
	DB *clientdb.DB

	// CertConfirmer must return nil if the given TLS certificate (outer
	// cert) and public key (inner cert) are accepted or an error if it any
	// of them are rejected.
	CertConfirmer clientintf.CertConfirmer

	// Logger is a function that generates loggers for each of the client's
	// subsystems.
	Logger func(subsys string) slog.Logger

	// LogPings indicates whether to log messages related to pings between
	// the client and the server.
	LogPings bool

	// NoLoadChatHistory indicates whether to load existing chat history from
	// chat log files.
	NoLoadChatHistory bool

	// CheckServerSession is called after a server session is established
	// but before the OnServerSessionChangedNtfn notification is called and
	// allows clients to check whether the connection is acceptable or if
	// other preconditions are met before continuing to connect with the
	// specified server.
	//
	// If this callback is non nil and returns an error, the connection
	// is dropped and another attempt at the connection is made.
	//
	// If the passed connCtx is canceled, this means the connection was
	// closed (either by the remote end or by the local end).
	CheckServerSession func(connCtx context.Context, lnNode string) error

	// Notifications tracks handlers for client events. If nil, the client
	// will initialize a new notification manager. Specifying a
	// notification manager in the config is useful to ensure no
	// notifications are lost due to race conditions in client
	// initialization.
	Notifications *NotificationManager

	// KXSuggestion is called when a remote user sends a suggestion to KX
	// with a new user.
	KXSuggestion func(user *RemoteUser, pii zkidentity.PublicIdentity)

	// FileDownloadConfirmer is called to confirm the start of a file
	// download with the user.
	FileDownloadConfirmer func(user *RemoteUser, fm rpc.FileMetadata) bool

	// TransitiveEvent is called whenever a request is made by source for
	// the local client to forward a message to dst.
	TransitiveEvent func(src, dst UserID, event TransitiveEvent)

	// TipUserRestartDelay is how long to wait after client start and
	// initial server connection to restart TipUser attempts. If unset,
	// a default value of 1 minute is used.
	TipUserRestartDelay time.Duration

	// TipUserReRequestInvoiceDelay is how long to wait to re-request an
	// invoice from the user, if one has not been received yet when
	// attempting to tip. If unset, a default value of 24 hours is used.
	TipUserReRequestInvoiceDelay time.Duration

	// TipUserMaxLifetime is the maximum amount of time an invoice will
	// be paid after received. After this delay elapses, there won't be
	// attempts to pay received invoices for a tip attempt. This delay is
	// based on the initial TipUser attempt.
	//
	// If unspecified, a default value of 72 hours is used.
	TipUserMaxLifetime time.Duration

	// TipUserPayRetryDelayFactor is the factor of the exponential delay
	// for retrying a payment when the payment error indicates a retry may
	// be possible.
	//
	// If unspecified, a default value of 12 seconds (1/5 minute) is used.
	TipUserPayRetryDelayFactor time.Duration

	// GCMQMaxLifetime is how long to wait for a message from an user,
	// after which the GCMQ considers no other messages from this user
	// will be received.
	//
	// If unspecified, a default value of 10 seconds is used.
	GCMQMaxLifetime time.Duration

	// ResourcesProvider if filled is used to respond to fetch resource
	// requests.
	ResourcesProvider resources.Provider

	// GCMQUpdtDelay is how often to check for GCMQ rules to emit messages.
	//
	// If unspecified, a default value of 1 second is used.
	GCMQUpdtDelay time.Duration

	// GCMQInitialDelay is how long to wait after the initial subscriptions
	// are done on the server to start processing GCMQ messages.
	//
	// If unspecified, a default value of 10 seconds is used.
	GCMQInitialDelay time.Duration

	// RecentMediateIDThreshold is how long to wait until attempting a new
	// mediate ID request for a given target.
	//
	// If unspecified, a default value of 7 days is used.
	RecentMediateIDThreshold time.Duration

	// UnkxdWarningTimeout is how long to wait between warnings about
	// trying to perform an action with unkxd people (for example, trying
	// to send a GC message to an unkxd GC member).
	//
	// If unspecified, a default value of 24 hours is used.
	UnkxdWarningTimeout time.Duration

	// MaxAutoKXMediateIDRequests is the max number of autokx mediate ID
	// requests to make to a particular user id.
	//
	// If unspecified, a default value of 3 is used.
	MaxAutoKXMediateIDRequests int

	// AutoHandshakeInterval is the interval after which, for any ratchets
	// that haven't been communicated with, an automatic handshake attempt
	// is made.
	AutoHandshakeInterval time.Duration

	// AutoRemoveIdleUsersInterval is the interval after which any idle
	// users (i.e. users from which no message has been received) will be
	// automatically removed from GCs the local client admins and will be
	// automatically unsubscribed from posts.
	AutoRemoveIdleUsersInterval time.Duration

	// AutoRemoveIdleUsersIgnoreList is a list of users that should NOT be
	// forcibly unsubscribed even if they are idle. The values may be an
	// user's nick or the prefix of the string representatation of its nick
	// (i.e. anything acceptable as returned by UserByNick()).
	AutoRemoveIdleUsersIgnoreList []string

	// SendReceiveReceipts flags whether to send receive receipts for all
	// domains.
	SendReceiveReceipts bool
}

Config holds the necessary config for instantiating a CR client.

type DcrlnPaymentClient 

type DcrlnPaymentClient struct {
	// contains filtered or unexported fields
}

DcrlnPaymentClient implements the PaymentClient interface for servers that offer the "dcrln" payment scheme.

func NewDcrlndPaymentClient 

func NewDcrlndPaymentClient(ctx context.Context, cfg DcrlnPaymentClientCfg) (*DcrlnPaymentClient, error)

NewDcrlndPaymentClient creates a new payment client that can send payments through dcrlnd.

func (*DcrlnPaymentClient) ChainParams added in v0.1.8 

func (pc *DcrlnPaymentClient) ChainParams(ctx context.Context) (*chaincfg.Params, error)

func (*DcrlnPaymentClient) CreateInviteFunds added in v0.1.7 

func (pc *DcrlnPaymentClient) CreateInviteFunds(ctx context.Context, amount dcrutil.Amount, account string) (*rpc.InviteFunds, error)

func (*DcrlnPaymentClient) DecodeInvoice 

func (pc *DcrlnPaymentClient) DecodeInvoice(ctx context.Context, invoice string) (clientintf.DecodedInvoice, error)

func (*DcrlnPaymentClient) GetInvoice 

func (pc *DcrlnPaymentClient) GetInvoice(ctx context.Context, mat int64, cb func(int64)) (string, error)

func (*DcrlnPaymentClient) IsInvoicePaid 

func (pc *DcrlnPaymentClient) IsInvoicePaid(ctx context.Context, minMatAmt int64, invoice string) error

func (*DcrlnPaymentClient) IsPaymentCompleted added in v0.1.4 

func (pc *DcrlnPaymentClient) IsPaymentCompleted(ctx context.Context, invoice string) (int64, error)

func (*DcrlnPaymentClient) LNRPC 

func (pc *DcrlnPaymentClient) LNRPC() lnrpc.LightningClient

func (*DcrlnPaymentClient) LNWallet added in v0.1.7 

func (pc *DcrlnPaymentClient) LNWallet() walletrpc.WalletKitClient

func (*DcrlnPaymentClient) NewReceiveAddress added in v0.1.8 

func (pc *DcrlnPaymentClient) NewReceiveAddress(ctx context.Context, acct string) (stdaddr.Address, error)

NewReceiveAddress returns a new on-chain address from the underlying wallet.

func (*DcrlnPaymentClient) PayInvoice 

func (pc *DcrlnPaymentClient) PayInvoice(ctx context.Context, invoice string) (int64, error)

func (*DcrlnPaymentClient) PayInvoiceAmount 

func (pc *DcrlnPaymentClient) PayInvoiceAmount(ctx context.Context, invoice string, amount int64) (int64, error)

func (*DcrlnPaymentClient) PayScheme 

func (pc *DcrlnPaymentClient) PayScheme() string

func (*DcrlnPaymentClient) PaymentTimingStats added in v0.1.2 

func (pc *DcrlnPaymentClient) PaymentTimingStats() []timestats.Quantile

PaymentTimingStats returns timing information for payment stats.

func (*DcrlnPaymentClient) RedeemInviteFunds added in v0.1.7 

func (pc *DcrlnPaymentClient) RedeemInviteFunds(ctx context.Context, funds *rpc.InviteFunds) (dcrutil.Amount, chainhash.Hash, error)

func (*DcrlnPaymentClient) TrackInvoice added in v0.1.8 

func (pc *DcrlnPaymentClient) TrackInvoice(ctx context.Context, invoice string, minMAtoms int64) (int64, error)

func (*DcrlnPaymentClient) UnlockWallet 

func (pc *DcrlnPaymentClient) UnlockWallet(ctx context.Context, pass string) error

func (*DcrlnPaymentClient) WaitNextBlock added in v0.1.7 

func (pc *DcrlnPaymentClient) WaitNextBlock(ctx context.Context) (chainhash.Hash, uint32, error)

WaitNextBlock blocks until the next block is received.

func (*DcrlnPaymentClient) WaitTxConfirmed added in v0.1.7 

func (pc *DcrlnPaymentClient) WaitTxConfirmed(ctx context.Context, tx chainhash.Hash) error

WaitTxConfirmed blocks until the given transaction (which must be a wallet tx) is confirmed onchain.

func (*DcrlnPaymentClient) WatchTransactions added in v0.1.8 

func (pc *DcrlnPaymentClient) WatchTransactions(ctx context.Context, handler func(tx *lnrpc.Transaction))

WatchTransactions watches transactions until the given context is closed.

type DcrlnPaymentClientCfg 

type DcrlnPaymentClientCfg struct {
	TLSCertPath  string
	MacaroonPath string
	Address      string
	Log          slog.Logger
}

type ErrKXSearchNeeded added in v0.1.6 

type ErrKXSearchNeeded struct {
	Author UserID
}

ErrKXSearchNeeded is returned when an action cannot be completed and a KX search must be performed.

func (ErrKXSearchNeeded) Error added in v0.1.6 

func (err ErrKXSearchNeeded) Error() string

func (ErrKXSearchNeeded) Is added in v0.1.6 

func (err ErrKXSearchNeeded) Is(target error) bool

type GCID 

type GCID = zkidentity.ShortID

type LastUserReceivedTime added in v0.1.4 

type LastUserReceivedTime struct {
	UID           clientintf.UserID
	LastDecrypted time.Time
}

LastUserReceivedTime is a record for user and their last decrypted message time.

type MsgContentFilteredEvent added in v0.1.8 

type MsgContentFilteredEvent struct {
	UID           UserID
	GC            *zkidentity.ShortID
	PID           *clientintf.PostID
	PostFrom      *clientintf.UserID
	IsPostComment bool
	Msg           string
	Rule          clientdb.ContentFilter
}

MsgContentFilteredEvent is the data for a message content filter event.

type NotificationHandler added in v0.1.4 

type NotificationHandler interface {
	// contains filtered or unexported methods
}

type NotificationManager added in v0.1.4 

type NotificationManager struct {
	// contains filtered or unexported fields
}

func NewNotificationManager added in v0.1.4 

func NewNotificationManager() *NotificationManager

func (*NotificationManager) AnyRegistered added in v0.1.8 

func (ngmr *NotificationManager) AnyRegistered(handler NotificationHandler) bool

AnyRegistered returns true if there are any handlers registered for the given handler type.

func (*NotificationManager) Register added in v0.1.4 

func (nmgr *NotificationManager) Register(handler NotificationHandler) NotificationRegistration

Register registers a callback notification function that is called asynchronously to the event (i.e. in a separate goroutine).

func (*NotificationManager) RegisterSync added in v0.1.4 

func (nmgr *NotificationManager) RegisterSync(handler NotificationHandler) NotificationRegistration

RegisterSync registers a callback notification function that is called synchronously to the event. This callback SHOULD return as soon as possible, otherwise the client might hang.

Synchronous callbacks are mostly intended for tests and when external callers need to ensure proper order of multiple sequential events. In general it is preferable to use callbacks registered with the Register call, to ensure the client will not deadlock or hang.

type NotificationRegistration added in v0.1.4 

type NotificationRegistration struct {
	// contains filtered or unexported fields
}

func (NotificationRegistration) Unregister added in v0.1.4 

func (reg NotificationRegistration) Unregister() bool

type OnAddedGCMembersNtfn added in v0.1.6 

type OnAddedGCMembersNtfn func(gc rpc.RMGroupList, uids []clientintf.UserID)

OnAddedGCMembersNtfn is a handler for new members added to a GC.

type OnBlockNtfn added in v0.1.7 

type OnBlockNtfn func(user *RemoteUser)

OnBlockNtfn is called when we blocked the specified user due to their request. Note that the passed user cannot be used for messaging anymore.

type OnContentListReceived added in v0.1.10 

type OnContentListReceived func(user *RemoteUser, files []clientdb.RemoteFile, listErr error)

ContentListReceived is called when the list of content of the user is received.

type OnFileDownloadCompleted added in v0.1.10 

type OnFileDownloadCompleted func(user *RemoteUser, fm rpc.FileMetadata, diskPath string)

FileDownloadCompleted is called whenever a download of a file has completed.

type OnFileDownloadProgress added in v0.1.10 

type OnFileDownloadProgress func(user *RemoteUser, fm rpc.FileMetadata, nbMissingChunks int)

FileDownloadProgress is called reporting the progress of a file download process.

type OnGCAdminsChangedNtfn added in v0.1.6 

type OnGCAdminsChangedNtfn func(ru *RemoteUser, gc rpc.RMGroupList, added, removed []zkidentity.ShortID)

type OnGCInviteAcceptedNtfn added in v0.1.6 

type OnGCInviteAcceptedNtfn func(user *RemoteUser, gc rpc.RMGroupList)

OnGCInviteAcceptedNtfn is a handler for invites accepted by remote users to join a GC we invited them to.

type OnGCKilledNtfn added in v0.1.6 

type OnGCKilledNtfn func(gcid GCID, reason string)

OnGCKilledNtfn is a handler for a GC dissolved by its admin.

type OnGCMNtfn added in v0.1.4 

type OnGCMNtfn func(*RemoteUser, rpc.RMGroupMessage, time.Time)

OnGCMNtfn is the handler for received gc messages.

type OnGCUpgradedNtfn added in v0.1.6 

type OnGCUpgradedNtfn func(gc rpc.RMGroupList, oldVersion uint8)

OnGCUpgradedNtfn is a handler for a GC that had its version upgraded.

type OnGCUserPartedNtfn added in v0.1.6 

type OnGCUserPartedNtfn func(gcid GCID, uid UserID, reason string, kicked bool)

OnGCUserPartedNtfn is a handler when a user parted from a GC or an admin kicked a user.

type OnGCVersionWarning added in v0.1.5 

type OnGCVersionWarning func(user *RemoteUser, gc rpc.RMGroupList, minVersion, maxVersion uint8)

OnGCVersionWarning is a handler for warnings about a GC that has an unsupported version.

type OnGCWithUnkxdMemberNtfn added in v0.1.8 

type OnGCWithUnkxdMemberNtfn func(gc zkidentity.ShortID, uid clientintf.UserID,
	hasKX, hasMI bool, miCount uint32, startedMIMediator *clientintf.UserID)

OnGCWithUnkxdMemberNtfn is called when attempting to send a message to a GC in which there are members that the local client hasn't KX'd with.

type OnHandshakeStageNtfn added in v0.1.8 

type OnHandshakeStageNtfn func(ru *RemoteUser, msgtype string)

OnHandshakeStageNtfn is called during a 3-way handshake with a remote client. mstype may be SYN, SYNACK or ACK. The SYNACK and ACK types allow the respective clients to infer that the ratchet operations are working.

type OnInvitedToGCNtfn added in v0.1.6 

type OnInvitedToGCNtfn func(user *RemoteUser, iid uint64, invite rpc.RMGroupInvite)

OnInvitedToGCNtfn is a handler for invites received to join GCs.

type OnInvoiceGenFailedNtfn added in v0.1.5 

type OnInvoiceGenFailedNtfn func(user *RemoteUser, dcrAmount float64, err error)

type OnJoinedGCNtfn added in v0.1.6 

type OnJoinedGCNtfn func(gc rpc.RMGroupList)

OnJoinedGCNtfn is a handler for when the local client joins a GC.

type OnKXCompleted added in v0.1.5 

type OnKXCompleted func(*clientintf.RawRVID, *RemoteUser, bool)

OnKXCompleted is called after KX is completed with a remote user (either a new user or a reset KX).

type OnKXSearchCompleted added in v0.1.6 

type OnKXSearchCompleted func(user *RemoteUser)

OnKXSearchCompleted is a handler for completed KX search procedures.

type OnKXSuggested added in v0.1.7 

type OnKXSuggested func(*RemoteUser, zkidentity.PublicIdentity)

OnKXSuggested is called after a remote user suggests that this user should KX with another remote user.

type OnLocalClientOfflineTooLong added in v0.1.4 

type OnLocalClientOfflineTooLong func(time.Time)

OnLocalClientOfflineTooLong is called after the local client connects to the server, if it determines it has been offline for too long given the server's message retention policy.

type OnMsgContentFilteredNtfn added in v0.1.8 

type OnMsgContentFilteredNtfn func(MsgContentFilteredEvent)

OnMsgContentFilteredNtfn is called when a message was filtered due to its contents.

type OnOnboardStateChangedNtfn added in v0.1.7 

type OnOnboardStateChangedNtfn func(state clientintf.OnboardState, err error)

type OnPMNtfn added in v0.1.4 

type OnPMNtfn func(*RemoteUser, rpc.RMPrivateMessage, time.Time)

OnPMNtfn is the handler for received private messages.

type OnPostRcvdNtfn added in v0.1.4 

type OnPostRcvdNtfn func(*RemoteUser, clientdb.PostSummary, rpc.PostMetadata)

OnPostRcvdNtfn is the handler for received posts.

type OnPostStatusRcvdNtfn added in v0.1.4 

type OnPostStatusRcvdNtfn func(*RemoteUser, clientintf.PostID, UserID,
	rpc.PostMetadataStatus)

OnPostStatusRcvdNtfn is the handler for received post status updates.

type OnPostSubscriberUpdated added in v0.1.9 

type OnPostSubscriberUpdated func(user *RemoteUser, subscribed bool)

OnPostSubscriberUpdated is called when a remote user changes its subscription status to the local client's posts (i.e. the remote user subscribed or unsubscribed to the local client's posts).

type OnPostsListReceived added in v0.1.9 

type OnPostsListReceived func(user *RemoteUser, postList rpc.RMListPostsReply)

PostsListReceived is called when the local client receives the list of posts from a remote user.

type OnRMReceived added in v0.1.10 

type OnRMReceived func(ru *RemoteUser, h *rpc.RMHeader, p interface{}, ts time.Time)

OnRMReceived is a notification sent whenever a remote user receives an RM. Note: this is called _before_ the RM has been processed, therefore care must be taken when hooking and handling this notification.

type OnReceiveReceipt added in v0.1.10 

type OnReceiveReceipt func(user *RemoteUser, rr rpc.RMReceiveReceipt, serverTime time.Time)

OnReceiveReceipt is a notification sent when a remote client sends a receive receipt.

type OnRemoteSubscriptionChangedNtfn added in v0.1.4 

type OnRemoteSubscriptionChangedNtfn func(*RemoteUser, bool)

OnRemoteSubscriptionChanged is the handler for a remote user subscription changed event.

type OnRemoteSubscriptionErrorNtfn added in v0.1.4 

type OnRemoteSubscriptionErrorNtfn func(user *RemoteUser, wasSubscribing bool, errMsg string)

OnRemoteSubscriptionErrorNtfn is the handler for a remote user subscription change attempt that errored.

type OnRemovedGCMembersNtfn added in v0.1.6 

type OnRemovedGCMembersNtfn func(gc rpc.RMGroupList, uids []clientintf.UserID)

OnRemovedGCMembersNtfn is a handler for members removed from a GC.

type OnResourceFetchedNtfn added in v0.1.8 

type OnResourceFetchedNtfn func(ru *RemoteUser, fr clientdb.FetchedResource, sess clientdb.PageSessionOverview)

OnResourceFetchedNtfn is called when a reply to a fetched resource is received.

Note that the user may be nil if the resource was fetched locally, such as through the FetchLocalResource call.

type OnServerSessionChangedNtfn added in v0.1.7 

type OnServerSessionChangedNtfn func(connected bool, policy clientintf.ServerPolicy)

OnServerSessionChangedNtfn is called indicating that the connection to the server changed to the specified state (either connected or not).

The push and subscription rates are specified in milliatoms/byte.

type OnServerUnwelcomeError added in v0.1.10 

type OnServerUnwelcomeError func(err error)

OnServerUnwelcomeError is a notification sent, when attempting to connect to a server, the client receives an error that hints that it should upgrade.

type OnTipAttemptProgressNtfn added in v0.1.7 

type OnTipAttemptProgressNtfn func(ru *RemoteUser, amtMAtoms int64, completed bool, attempt int, attemptErr error, willRetry bool)

type OnTipReceivedNtfn added in v0.1.8 

type OnTipReceivedNtfn func(ru *RemoteUser, amountMAtoms int64)

OnTipReceivedNtfn is called when a tip is received from a remote user.

type OnTipUserInvoiceGeneratedNtfn added in v0.1.8 

type OnTipUserInvoiceGeneratedNtfn func(ru *RemoteUser, tag uint32, invoice string)

OnTipUserInvoiceGeneratedNtfn is called when the local client generates an invoice to send to a remote user, for tipping purposes.

type OnUnsubscribingIdleRemoteClient added in v0.1.9 

type OnUnsubscribingIdleRemoteClient func(user *RemoteUser, lastDecTime time.Time)

OnUnsubscribingIdleRemoteClient is a notification sent when a remote client is detected as idle and being unsubscribed from GCs and posts.

type RatchetDebugInfo added in v0.1.4 

type RatchetDebugInfo struct {
	SendRV       ratchet.RVPoint `json:"send_rv"`
	SendRVPlain  string          `json:"send_rv_plain"`
	RecvRV       ratchet.RVPoint `json:"recv_rv"`
	RecvRVPlain  string          `json:"recv_rv_plain"`
	DrainRV      ratchet.RVPoint `json:"drain_rv"`
	DrainRVPlain string          `json:"drain_rv_plain"`
	MyResetRV    string          `json:"my_reset_rv"`
	TheirResetRV string          `json:"their_reset_rv"`
	NbSavedKeys  int             `json:"nb_saved_keys"`
	WillRatchet  bool            `json:"will_ratchet"`
	LastEncTime  time.Time       `json:"last_enc_time"`
	LastDecTime  time.Time       `json:"last_dec_time"`
}

RatchetDebugInfo is debug information about a user's ratchet state.

type RemoteUser 

type RemoteUser struct {
	// contains filtered or unexported fields
}

RemoteUser tracks the state of a fully formed ratchet (that is, after kx completes) and offers services that can be performed on this remote user.

func (*RemoteUser) ID 

func (ru *RemoteUser) ID() UserID

func (*RemoteUser) IsIgnored 

func (ru *RemoteUser) IsIgnored() bool

func (*RemoteUser) LastRatchetTimes added in v0.1.4 

func (ru *RemoteUser) LastRatchetTimes() (time.Time, time.Time)

func (*RemoteUser) Nick 

func (ru *RemoteUser) Nick() string

func (*RemoteUser) PublicIdentity 

func (ru *RemoteUser) PublicIdentity() zkidentity.PublicIdentity

func (*RemoteUser) RatchetDebugInfo added in v0.1.4 

func (ru *RemoteUser) RatchetDebugInfo() RatchetDebugInfo

RatchetDebugInfo returns debug information about this user's ratchet.

func (*RemoteUser) SetIgnored 

func (ru *RemoteUser) SetIgnored(ignored bool)

func (*RemoteUser) String 

func (ru *RemoteUser) String() string

type RunningTipUserAttempt added in v0.1.8 

type RunningTipUserAttempt struct {
	Tag            int32
	UID            clientintf.UserID
	NextAction     string
	NextActionTime time.Time
}

RunningTipUserAttempt tracks information about a running attempt at tipping a user.

type SendProgress 

type SendProgress struct {
	Sent  int
	Total int
	Err   error
}

SendProgress is sent to track progress of messages that are sent to multiple remote users (for example, GC messages that are sent to all members).

type TransitiveEvent 

type TransitiveEvent string

type UserID 

type UserID = clientintf.UserID

func SortedUserPayStatsIDs 

func SortedUserPayStatsIDs(stats map[UserID]clientdb.UserPayStats) []UserID

SortedUserPayStatsIDs returns a sorted list of IDs from the passed stats map, ordered by largest total payments.

func UserIDFromStr 

func UserIDFromStr(s string) UserID

RemoteIDFromStr converts the given string to a UserID. Returns an empty uid if the string is not a valid UserID.

type WalletUsableError 

type WalletUsableError struct {
	// contains filtered or unexported fields
}

WalletUsableError is a complex error type that wraps both one the type of error and an underlying error (if it exists)

func (WalletUsableError) Error 

func (err WalletUsableError) Error() string

func (WalletUsableError) Unwrap 

func (err WalletUsableError) Unwrap() error

type WalletUsableErrorKind 

type WalletUsableErrorKind string

WalletUsableErrorKind holds the types of errors that may happen when checking if an LN wallet is usable for payments to the server.

func (WalletUsableErrorKind) Error 

func (err WalletUsableErrorKind) Error() string

Source Files

View all Source files

Directories

Path Synopsis
Package clientintf holds client-global interfaces and helper functions.
 Package clientintf holds client-global interfaces and helper functions.
internal
gcmcacher
lowlevel
multipriq
replaymsglog
singlesetmap
waitingq
simplestore

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