readme

.hgtags

@@ -10,3 +10,5 @@ da9f123633f9c28be6435ed7898139665d4c39d9 nmdc-log-service-1.0.2
 cb86f3a40115cc46f450c0c83fd9b9d3b740e820 nmdc-log-service-1.0.4
 cb86f3a40115cc46f450c0c83fd9b9d3b740e820 libnmdc-r6
 71343a2c641a438206d30ea7e75dc89a11dbef00 libnmdc-r7
+b0e57a5fcffdf4102d669db51a3648ddf66a0792 libnmdc-r8
+e7c2c71ef24b386add728fad35fff4a996fccbac libnmdc-r9

HubConnection.go

@@ -3,6 +3,7 @@ package libnmdc
 import (
 	"crypto/tls"
 	"net"
+	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -74,11 +75,15 @@ func (this *HubConnection) userJoined_NameOnly(nick string) {
 }
 
 func (this *HubConnection) userJoined_Full(uinf *UserInfo) {
-	if !this.UserExists(uinf.Nick) {
+	// n.b. also called when we get a replacement MyINFO for someone
 	this.userLock.Lock()
 	defer this.userLock.Unlock()
 
+	_, userExisted := this.users[uinf.Nick] // don't use UserExists as it would deadlock the mutex
+
 	this.users[uinf.Nick] = *uinf
+
+	if !userExisted {
 		this.processEvent(HubEvent{EventType: EVENT_USER_JOINED, Nick: uinf.Nick})
 	}
 }
@@ -240,9 +245,29 @@ func (this *HubConnection) processProtocolMessage(message string) {
 		this.Hco.Address = HubAddress(commandParts[1])
 		this.conn.Close() // we'll reconnect onto the new address
 
+	case "$UserCommand":
+		// $UserCommand 1 1 Group chat\New group chat$<%[mynick]> !groupchat_new&#124;|
+		if rx_userCommand.MatchString(commandParts[1]) {
+			usc := rx_userCommand.FindStringSubmatch(commandParts[1])
+
+			typeInt, _ := strconv.Atoi(usc[1])
+			contextInt, _ := strconv.Atoi(usc[2])
+
+			uscStruct := UserCommand{
+				Type:    UserCommandType(typeInt),
+				Context: UserCommandContext(contextInt),
+				Message: usc[3],
+				Command: NMDCUnescape(usc[4]),
+			}
+
+			this.processEvent(HubEvent{EventType: EVENT_USERCOMMAND, UserCommand: &uscStruct})
+
+		} else {
+			this.processEvent(HubEvent{EventType: EVENT_DEBUG_MESSAGE, Message: "Malformed usercommand '" + commandParts[1] + "'"})
+		}
+
 	// IGNORABLE COMMANDS
 	case "$Supports":
-	case "$UserCommand": // TODO $UserCommand 1 1 Group chat\New group chat$<%[mynick]> !groupchat_new&#124;|
 	case "$HubTopic":
 	case "$Search":
 	case "$ConnectToMe":

HubEvent.go

@@ -11,6 +11,7 @@ const (
 	EVENT_CONNECTION_STATE_CHANGED = 8
 	EVENT_HUBNAME_CHANGED          = 9
 	EVENT_DEBUG_MESSAGE            = 10
+	EVENT_USERCOMMAND              = 11
 )
 
 type HubEventType int
@@ -20,4 +21,5 @@ type HubEvent struct {
 	Nick        string
 	Message     string
 	StateChange ConnectionState
+	UserCommand *UserCommand
 }

UserCommand.go

@@ -0,0 +1,26 @@
+package libnmdc
+
+type UserCommandType uint8
+
+const (
+	USERCOMMAND_TYPE_SEPARATOR   UserCommandType = 0
+	USERCOMMAND_TYPE_RAW         UserCommandType = 1
+	USERCOMMAND_TYPE_NICKLIMITED UserCommandType = 2
+	USERCOMMAND_TYPE_CLEARALL    UserCommandType = 255
+)
+
+type UserCommandContext uint8
+
+const (
+	USERCOMMAND_CONTEXT_HUB      UserCommandContext = 1
+	USERCOMMAND_CONTEXT_USER     UserCommandContext = 2
+	USERCOMMAND_CONTEXT_SEARCH   UserCommandContext = 4
+	USERCOMMAND_CONTEXT_FILELIST UserCommandContext = 8
+)
+
+type UserCommand struct {
+	Type    UserCommandType
+	Context UserCommandContext
+	Message string
+	Command string
+}

UserInfo.go

@@ -56,12 +56,19 @@ var rx_myinfo_notag *regexp.Regexp
 
 func init() {
 	// $ALL <nick> <description>$ $<connection><flag>$<e-mail>$<sharesize>$
-	rx_myinfo = regexp.MustCompile("(?ms)^\\$ALL ([^ ]+) ([^<]*)<([^,]*)V:([^,]+),M:(.),H:([0-9]+)/([0-9]+)/([0-9]+),S:([0-9]+)>\\$.\\$(.+?)(.)\\$([^$]*)\\$([0-9]*)\\$$")
+
-	rx_myinfo_notag = regexp.MustCompile("(?ms)^\\$ALL ([^ ]+) ([^$]*)\\$.\\$(.*)(.)\\$([^$]*)\\$([0-9]*)\\$$") // Fallback for no tag
+	HEAD := `(?ms)^\$ALL ([^ ]+) `
+	FOOT := `\$.\$([^$]+)\$([^$]*)\$([0-9]*)\$$`
+
+	rx_myinfo = regexp.MustCompile(HEAD + `([^<]*)<(.+?) V:([^,]+),M:(.),H:([0-9]+)/([0-9]+)/([0-9]+),S:([0-9]+)>` + FOOT)
+	rx_myinfo_notag = regexp.MustCompile(HEAD + `([^$]*)` + FOOT) // Fallback for no tag
 
 	/*
-		sample := "$ALL Betty description<ApexDC++ V:1.4.3,M:P,H:9/0/2,S:1>$ $0.01\x01$xyz@xyz.com$53054999578$"
+		sample := ""
-		sample = "$ALL ivysaur80 $P$10A$$0$"
+		// sample = "$ALL Betty description<ApexDC++ V:1.4.3,M:P,H:9/0/2,S:1>$ $0.01\x01$xyz@xyz.com$53054999578$"
+		// sample = "$ALL ivysaur80 $P$10A$$0$"
+		// sample = "$ALL SHINY_IVYSAUR <ncdc V:1.19.1-12-g5561,M:P,H:1/0/0,S:10>$ $0.005Q$$0$"
+		// sample = "$ALL mappu desccccc<HexChat V:2.12.1,M:P,H:1/0/0,S:0>$ $p$$0$"
 
 		u := UserInfo{}
 		err := u.fromMyINFO(sample)
@@ -71,7 +78,7 @@ func init() {
 			fmt.Printf("%+v\n", u)
 		}
 
-		os.Exit(1)
+		panic("")
 	*/
 }
 
@@ -93,6 +100,7 @@ func maybeParse(str string, dest *uint64, default_val uint64) {
 }
 
 func (this *UserInfo) fromMyINFO(protomsg string) error {
+
 	// Normal format (with tag in exact V/M/H/S order)
 	matches := rx_myinfo.FindStringSubmatch(protomsg)
 	if matches != nil {
@@ -105,10 +113,14 @@ func (this *UserInfo) fromMyINFO(protomsg string) error {
 		maybeParse(matches[7], &this.HubsRegistered, 0)
 		maybeParse(matches[8], &this.HubsOperator, 0)
 		maybeParse(matches[9], &this.Slots, 0)
-		this.Speed = matches[10]
+		if len(matches[10]) > 1 {
-		this.Flag = UserFlag(matches[11][0])
+			this.Speed = matches[10][:len(matches[10])-2]
-		this.Email = NMDCUnescape(matches[12])
+		} else {
-		maybeParse(matches[13], &this.ShareSize, 0)
+			this.Speed = ""
+		}
+		this.Flag = UserFlag(matches[10][len(matches[10])-1])
+		this.Email = NMDCUnescape(matches[11])
+		maybeParse(matches[12], &this.ShareSize, 0)
 
 		return nil
 	}
@@ -125,14 +137,21 @@ func (this *UserInfo) fromMyINFO(protomsg string) error {
 		this.HubsRegistered = 0
 		this.HubsOperator = 0
 		this.Slots = 0
-		this.Speed = matches[3]
+
-		this.Flag = UserFlag(matches[4][0])
+		if len(matches[3]) > 1 {
-		this.Email = NMDCUnescape(matches[5])
+			this.Speed = matches[3][:len(matches[3])-2]
-		maybeParse(matches[6], &this.ShareSize, 0)
+		} else {
+			this.Speed = ""
+		}
+		this.Flag = UserFlag(matches[3][len(matches[3])-1])
+		this.Email = NMDCUnescape(matches[4])
+		maybeParse(matches[5], &this.ShareSize, 0)
 
 		return nil
 	}
 
+	fmt.Printf("PARSE: malformed\n")
+
 	// Couldn't get anything out of it...
 	return errors.New("Malformed MyINFO")
 }

__dist/README.txt

@@ -9,6 +9,13 @@ Tags: nmdc
 
 =CHANGELOG=
 
+2016-10-08 r10
+- Feature: Support `$UserCommand`
+
+2016-08-27 r9
+- Fix an issue with parsing MyINFO strings with zero-length speed descriptions
+- Fix an issue with not storing updated profile information
+
 2016-05-10 r8
 - Enhancement: Separate `ClientTag` and `ClientVersion` in `UserInfo` structs
 

libnmdc.go

@@ -19,12 +19,14 @@ const (
 var rx_protocolMessage *regexp.Regexp
 var rx_publicChat *regexp.Regexp
 var rx_incomingTo *regexp.Regexp
+var rx_userCommand *regexp.Regexp
 var ErrNotConnected error = errors.New("Not connected")
 
 func init() {
 	rx_protocolMessage = regexp.MustCompile("(?ms)^[^|]*\\|")
 	rx_publicChat = regexp.MustCompile("(?ms)^<([^>]*)> (.*)$")
 	rx_incomingTo = regexp.MustCompile("(?ms)^([^ ]+) From: ([^ ]+) \\$<([^>]*)> (.*)")
+	rx_userCommand = regexp.MustCompile(`(?ms)^(\d+) (\d+)\s?([^\$]*)\$?(.*)`)
 }
 
 func NMDCUnescape(encoded string) string {