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libcwtch-go/utils/manager.go

251 lines
7.6 KiB
Go

package utils
import (
"cwtch.im/cwtch/model"
"cwtch.im/cwtch/model/attr"
"cwtch.im/cwtch/peer"
"cwtch.im/cwtch/protocol/connections"
"errors"
"git.openprivacy.ca/cwtch.im/libcwtch-go/constants"
"git.openprivacy.ca/openprivacy/log"
"strconv"
"strings"
"time"
)
type PeerHelper struct {
peer peer.CwtchPeer
}
func NewPeerHelper(profile peer.CwtchPeer) *PeerHelper {
return &PeerHelper{profile}
}
func (p *PeerHelper) IsGroup(id string) bool {
return len(id) == 32 && !p.IsServer(id)
}
func (p *PeerHelper) IsPeer(id string) bool {
return len(id) == 56 && !p.IsServer(id)
}
// Check if the id is associated with a contact with a KeyTypeServerOnion attribute (which indicates that this
// is a server, not a regular contact or a group
func (p *PeerHelper) IsServer(id string) bool {
_, ok := p.peer.GetContactAttribute(id, string(model.KeyTypeServerOnion))
return ok
}
// GetTimeline returns a pointer to the timeline associated with the conversation handle or nil if the handle
// does not exist (this can happen if the conversation has been deleted)
func (p *PeerHelper) GetTimeline(handle string) *model.Timeline {
if p.IsServer(handle) {
// This should *never* happen
log.Errorf("server accessed as contact when getting timeline...")
return &model.Timeline{}
}
// We return a pointer to the timeline to avoid copying, accessing Timeline is thread-safe
if p.IsGroup(handle) {
group := p.peer.GetGroup(handle)
if group == nil {
return nil
}
return &group.Timeline
}
contact := p.peer.GetContact(handle)
if contact == nil {
return nil
}
return &contact.Timeline
}
/*
func getOrDefault(id, key string, defaultVal string) string {
var val string
var ok bool
if IsGroup(id) {
val, ok = the.Peer.GetGroupAttribute(id, key)
} else {
val, ok = the.Peer.GetContactAttribute(id, key)
}
if ok {
return val
} else {
return defaultVal
}
}*/
func (p *PeerHelper) GetWithSetDefault(id string, key string, defaultVal string) string {
var val string
var ok bool
if p.IsGroup(id) {
val, ok = p.peer.GetGroupAttribute(id, key)
} else {
val, ok = p.peer.GetContactAttribute(id, key)
}
if !ok {
val = defaultVal
if p.IsGroup(id) {
p.peer.SetGroupAttribute(id, key, defaultVal)
} else {
p.peer.SetContactAttribute(id, key, defaultVal)
}
}
return val
}
func (p *PeerHelper) GetNick(id string) string {
if p.IsGroup(id) {
nick, exists := p.peer.GetGroupAttribute(id, attr.GetLocalScope(constants.Name))
if !exists || nick == "" || nick == id {
nick, exists = p.peer.GetGroupAttribute(id, attr.GetPeerScope(constants.Name))
if !exists {
nick = "[" + id + "]"
}
}
return nick
} else {
nick, exists := p.peer.GetContactAttribute(id, attr.GetLocalScope(constants.Name))
if !exists || nick == "" || nick == id {
nick, exists = p.peer.GetContactAttribute(id, attr.GetPeerScope(constants.Name))
if !exists {
nick = "[" + id + "]"
// we do not have a canonical nick for this contact.
// re-request if authenticated
// TODO: This check probably doesn't belong here...
if contact := p.peer.GetContact(id); contact != nil && contact.State == connections.ConnectionStateName[connections.AUTHENTICATED] {
p.peer.SendScopedZonedGetValToContact(id, attr.PublicScope, attr.ProfileZone, constants.Name)
}
}
}
return nick
}
}
// InitLastReadTime checks and gets the Attributable's LastRead time or sets it to now
func (p *PeerHelper) InitLastReadTime(id string) time.Time {
nowStr, _ := time.Now().MarshalText()
lastReadAttr := p.GetWithSetDefault(id, attr.GetLocalScope(constants.LastRead), string(nowStr))
var lastRead time.Time
lastRead.UnmarshalText([]byte(lastReadAttr))
return lastRead
}
// GetProfilePic returns a string path to an image to display for hte given peer/group id
func (p *PeerHelper) GetProfilePic(id string) string {
if p.IsGroup(id) {
if picVal, exists := p.peer.GetGroupAttribute(id, attr.GetLocalScope(constants.Picture)); exists {
pic, err := StringToImage(picVal)
if err == nil {
return GetPicturePath(pic)
}
}
if picVal, exists := p.peer.GetGroupAttribute(id, attr.GetPeerScope(constants.Picture)); exists {
pic, err := StringToImage(picVal)
if err == nil {
return GetPicturePath(pic)
}
}
return GetPicturePath(NewImage(RandomGroupImage(id), TypeImageDistro))
} else {
if picVal, exists := p.peer.GetContactAttribute(id, attr.GetLocalScope(constants.Picture)); exists {
pic, err := StringToImage(picVal)
if err == nil {
return GetPicturePath(pic)
}
}
if picVal, exists := p.peer.GetContactAttribute(id, attr.GetPeerScope(constants.Picture)); exists {
pic, err := StringToImage(picVal)
if err == nil {
return GetPicturePath(pic)
}
}
return RandomProfileImage(id)
}
}
// a lot of pics were stored full path + uri. remove all this to the relative path in images/
// fix for storing full paths introduced 2019.12
func profilePicRelativize(filename string) string {
parts := strings.Split(filename, "qml/images")
return parts[len(parts)-1]
}
func GetPicturePath(pic *image) string {
switch pic.T {
case TypeImageDistro:
return profilePicRelativize(pic.Val)
default:
log.Errorf("Unhandled profile picture type of %v\n", pic.T)
return ""
}
}
func (p *PeerHelper) CountUnread(messages []model.Message, lastRead time.Time) int {
count := 0
for i := len(messages) - 1; i >= 0; i-- {
if messages[i].Timestamp.After(lastRead) || messages[i].Timestamp.Equal(lastRead) {
count++
} else {
break
}
}
return count
}
func getLastMessageTime(tl *model.Timeline) int {
if len(tl.Messages) == 0 {
return 0
}
return int(tl.Messages[len(tl.Messages)-1].Timestamp.Unix())
}
// EnrichNewPeer populates required data for use by frontend
// uiManager.AddContact(onion)
// (handle string, displayName string, image string, badge int, status int, authorization string, loading bool, lastMsgTime int)
func EnrichNewPeer(handle string, ph *PeerHelper, ev *EventProfileEnvelope) error {
if ph.IsGroup(handle) {
group := ph.peer.GetGroup(handle)
if group != nil {
lastRead := ph.InitLastReadTime(group.GroupID)
ev.Event.Data["unread"] = strconv.Itoa(ph.CountUnread(group.Timeline.GetMessages(), lastRead))
ev.Event.Data["picture"] = ph.GetProfilePic(handle)
ev.Event.Data["numMessages"] = strconv.Itoa(group.Timeline.Len())
ev.Event.Data["nick"] = ph.GetNick(handle)
ev.Event.Data["status"] = group.State
ev.Event.Data["authorization"] = string(model.AuthApproved)
ev.Event.Data["loading"] = "false"
ev.Event.Data["lastMsgTime"] = strconv.Itoa(getLastMessageTime(&group.Timeline))
}
} else if ph.IsPeer(handle) {
contact := ph.peer.GetContact(handle)
if contact != nil {
lastRead := ph.InitLastReadTime(contact.Onion)
ev.Event.Data["unread"] = strconv.Itoa(ph.CountUnread(contact.Timeline.GetMessages(), lastRead))
ev.Event.Data["numMessages"] = strconv.Itoa(contact.Timeline.Len())
ev.Event.Data["picture"] = ph.GetProfilePic(handle)
ev.Event.Data["nick"] = ph.GetNick(handle)
// TODO Replace this if with a better flow that separates New Contacts and Peering Updates
if contact.State == "" {
// Will be disconnected to start
ev.Event.Data["status"] = connections.ConnectionStateName[connections.DISCONNECTED]
} else {
ev.Event.Data["status"] = contact.State
}
ev.Event.Data["authorization"] = string(contact.Authorization)
ev.Event.Data["loading"] = "false"
ev.Event.Data["lastMsgTime"] = strconv.Itoa(getLastMessageTime(&contact.Timeline))
} else {
log.Errorf("Failed to find contact: %v", handle)
}
} else {
// could be a server?
log.Debugf("sorry, unable to handle AddContact(%v)", handle)
return errors.New("not a peer or group")
}
return nil
}