remove deprecated

1 files changed, 0 insertions, 495 deletions

diff --git a/deprecated-webircgateway/pkg/webircgateway/client_command_handlers.go b/deprecated-webircgateway/pkg/webircgateway/client_command_handlers.go
deleted file mode 100644
index d5d1fcc..0000000
--- a/deprecated-webircgateway/pkg/webircgateway/client_command_handlers.go
+++ /dev/null
@@ -1,495 +0,0 @@
-package webircgateway
-
-import (
-	"errors"
-	"strconv"
-	"strings"
-	"time"
-
-	"github.com/golang-jwt/jwt/v4"
-	"github.com/kiwiirc/webircgateway/pkg/irc"
-	"github.com/kiwiirc/webircgateway/pkg/recaptcha"
-	"golang.org/x/net/html/charset"
-	"golang.org/x/time/rate"
-)
-
-var MAX_EXTJWT_SIZE = 200
-
-/*
- * ProcessLineFromUpstream
- * Processes and makes any changes to a line of data sent from an upstream
- */
-func (c *Client) ProcessLineFromUpstream(data string) string {
-	client := c
-
-	m, parseErr := irc.ParseLine(data)
-	if parseErr != nil {
-		return data
-	}
-
-	pLen := len(m.Params)
-
-	if pLen > 0 && m.Command == "NICK" && m.Prefix.Nick == c.IrcState.Nick {
-		client.IrcState.Nick = m.Params[0]
-	}
-	if pLen > 0 && m.Command == "001" {
-		client.IrcState.Nick = m.Params[0]
-		client.State = ClientStateConnected
-		client.ServerMessagePrefix = *m.Prefix
-
-		// Throttle writes if configured, but only after registration is complete. Typical IRCd
-		// behavior is to not throttle registration commands.
-		client.ThrottledRecv.Limiter = rate.NewLimiter(rate.Limit(client.UpstreamConfig.Throttle), 1)
-	}
-	if pLen > 0 && m.Command == "005" {
-		tokenPairs := m.Params[1 : pLen-1]
-		iSupport := c.IrcState.ISupport
-		iSupport.Received = true
-		iSupport.Tags = m.Tags
-		iSupport.AddTokens(tokenPairs)
-	}
-	if c.IrcState.ISupport.Received && !c.IrcState.ISupport.Injected && m.Command != "005" {
-		iSupport := c.IrcState.ISupport
-		iSupport.Injected = true
-
-		msg := irc.NewMessage()
-		msg.Command = "005"
-		msg.Prefix = &c.ServerMessagePrefix
-		msg.Params = append(msg.Params, c.IrcState.Nick)
-
-		if iSupport.HasToken("EXTJWT") {
-			c.Log(1, "Upstream already supports EXTJWT, disabling feature")
-			c.Features.ExtJwt = false
-		} else {
-			// Add EXTJWT ISupport token
-			msg.Params = append(msg.Params, "EXTJWT=1")
-			iSupport.AddToken("EXTJWT=1")
-		}
-
-		msg.Params = append(msg.Params, "are supported by this server")
-		if timeTag, ok := c.IrcState.ISupport.Tags["time"]; ok {
-			msg.Tags["time"] = timeTag
-		}
-		if len(msg.Params) > 2 {
-			// Extra tokens were added, send the line
-			c.SendClientSignal("data", msg.ToLine())
-		}
-	}
-	if pLen > 0 && m.Command == "JOIN" && m.Prefix.Nick == c.IrcState.Nick {
-		channel := irc.NewStateChannel(m.GetParam(0, ""))
-		c.IrcState.SetChannel(channel)
-	}
-	if pLen > 0 && m.Command == "PART" && m.Prefix.Nick == c.IrcState.Nick {
-		c.IrcState.RemoveChannel(m.GetParam(0, ""))
-	}
-	if pLen > 0 && m.Command == "QUIT" && m.Prefix.Nick == c.IrcState.Nick {
-		c.IrcState.ClearChannels()
-	}
-	// :server.com 900 m m!m@irc-3jg.1ab.j4ep8h.IP prawnsalad :You are now logged in as prawnsalad
-	if pLen > 0 && m.Command == "900" {
-		c.IrcState.Account = m.GetParam(2, "")
-	}
-	// :server.com 901 itsonlybinary itsonlybinary!itsonlybina@user/itsonlybinary :You are now logged out
-	if m.Command == "901" {
-		c.IrcState.Account = ""
-	}
-	// :prawnsalad!prawn@kiwiirc/prawnsalad MODE #kiwiirc-dev +oo notprawn kiwi-n75
-	if pLen > 0 && m.Command == "MODE" {
-		if strings.HasPrefix(m.GetParam(0, ""), "#") {
-			channelName := m.GetParam(0, "")
-			modes := m.GetParam(1, "")
-
-			channel := c.IrcState.GetChannel(channelName)
-			if channel != nil {
-				channel = irc.NewStateChannel(channelName)
-				c.IrcState.SetChannel(channel)
-			}
-
-			adding := false
-			paramIdx := 1
-			for i := 0; i < len(modes); i++ {
-				mode := string(modes[i])
-
-				if mode == "+" {
-					adding = true
-				} else if mode == "-" {
-					adding = false
-				} else {
-					paramIdx++
-					param := m.GetParam(paramIdx, "")
-					if strings.EqualFold(param, c.IrcState.Nick) {
-						if adding {
-							channel.Modes[mode] = ""
-						} else {
-							delete(channel.Modes, mode)
-						}
-					}
-				}
-			}
-		}
-	}
-
-	// If upstream reports that it supports message-tags natively, disable the wrapping of this feature for
-	// this client
-	if pLen >= 3 &&
-		strings.ToUpper(m.Command) == "CAP" &&
-		m.GetParamU(1, "") == "LS" {
-		// The CAPs could be param 2 or 3 depending on if were using multiple lines to list them all.
-		caps := ""
-		if pLen >= 4 && m.Params[2] == "*" {
-			caps = m.GetParamU(3, "")
-		} else {
-			caps = m.GetParamU(2, "")
-		}
-
-		if containsOneOf(caps, []string{"DRAFT/MESSAGE-TAGS-0.2", "MESSAGE-TAGS"}) {
-			c.Log(1, "Upstream already supports Messagetags, disabling feature")
-			c.Features.Messagetags = false
-		}
-
-		// Inject message-tags cap into the last line of IRCd capabilities
-		if c.Features.Messagetags && m.Params[2] != "*" {
-			m.Params[2] += " message-tags"
-			data = m.ToLine()
-		}
-	}
-
-	// If we requested message-tags, make sure to include it in the ACK when
-	// the IRCd sends the ACK through
-	if m != nil &&
-		client.RequestedMessageTagsCap != "" &&
-		strings.ToUpper(m.Command) == "CAP" &&
-		m.GetParamU(1, "") == "ACK" &&
-		!strings.Contains(m.GetParamU(2, ""), "MESSAGE-TAGS") {
-
-		m.Params[2] += " " + client.RequestedMessageTagsCap
-		data = m.ToLine()
-
-		client.RequestedMessageTagsCap = ""
-	}
-
-	if m != nil && client.Features.Messagetags && c.Gateway.messageTags.CanMessageContainClientTags(m) {
-		// If we have any message tags stored for this message from a previous PRIVMSG sent
-		// by a client, add them back in
-		mTags, mTagsExists := c.Gateway.messageTags.GetTagsFromMessage(client, m.Prefix.Nick, m)
-		if mTagsExists {
-			for k, v := range mTags.Tags {
-				m.Tags[k] = v
-			}
-
-			data = m.ToLine()
-		}
-	}
-
-	return data
-}
-
-/*
- * ProcessLineFromClient
- * Processes and makes any changes to a line of data sent from a client
- */
-func (c *Client) ProcessLineFromClient(line string) (string, error) {
-	message, err := irc.ParseLine(line)
-	// Just pass any random data upstream
-	if err != nil {
-		return line, nil
-	}
-
-	maybeConnectUpstream := func() {
-		verified := false
-		if c.RequiresVerification && !c.Verified {
-			verified = false
-		} else {
-			verified = true
-		}
-
-		if !c.UpstreamStarted && c.IrcState.Username != "" && c.IrcState.Nick != "" && verified {
-			c.connectUpstream()
-		}
-	}
-
-	if !c.Verified && strings.ToUpper(message.Command) == "CAPTCHA" {
-		verified := false
-		if len(message.Params) >= 1 {
-			captcha := recaptcha.R{
-				URL:    c.Gateway.Config.ReCaptchaURL,
-				Secret: c.Gateway.Config.ReCaptchaSecret,
-			}
-
-			verified = captcha.VerifyResponse(message.Params[0])
-		}
-
-		if !verified {
-			c.SendIrcError("Invalid captcha")
-			c.SendClientSignal("state", "closed", "bad_captcha")
-			c.StartShutdown("unverifed")
-		} else {
-			c.Verified = true
-			maybeConnectUpstream()
-		}
-
-		return "", nil
-	}
-
-	// NICK <nickname>
-	if strings.ToUpper(message.Command) == "NICK" && !c.UpstreamStarted {
-		if len(message.Params) > 0 {
-			c.IrcState.Nick = message.Params[0]
-		}
-
-		if !c.UpstreamStarted {
-			maybeConnectUpstream()
-		}
-	}
-
-	// USER <username> <hostname> <servername> <realname>
-	if strings.ToUpper(message.Command) == "USER" && !c.UpstreamStarted {
-		if len(message.Params) < 4 {
-			return line, errors.New("Invalid USER line")
-		}
-
-		if c.Gateway.Config.ClientUsername != "" {
-			message.Params[0] = makeClientReplacements(c.Gateway.Config.ClientUsername, c)
-		}
-		if c.Gateway.Config.ClientRealname != "" {
-			message.Params[3] = makeClientReplacements(c.Gateway.Config.ClientRealname, c)
-		}
-
-		line = message.ToLine()
-
-		c.IrcState.Username = message.Params[0]
-		c.IrcState.RealName = message.Params[3]
-
-		maybeConnectUpstream()
-	}
-
-	if strings.ToUpper(message.Command) == "ENCODING" {
-		if len(message.Params) > 0 {
-			encoding, _ := charset.Lookup(message.Params[0])
-			if encoding == nil {
-				c.Log(1, "Requested unknown encoding, %s", message.Params[0])
-			} else {
-				c.Encoding = message.Params[0]
-				c.Log(1, "Set encoding to %s", message.Params[0])
-			}
-		}
-
-		// Don't send the ENCODING command upstream
-		return "", nil
-	}
-
-	if strings.ToUpper(message.Command) == "HOST" && !c.UpstreamStarted {
-		// HOST irc.network.net:6667
-		// HOST irc.network.net:+6667
-
-		if !c.Gateway.Config.Gateway {
-			return "", nil
-		}
-
-		if len(message.Params) == 0 {
-			return "", nil
-		}
-
-		addr := message.Params[0]
-		if addr == "" {
-			c.SendIrcError("Missing host")
-			c.StartShutdown("missing_host")
-			return "", nil
-		}
-
-		// Parse host:+port into the c.dest* vars
-		portSep := strings.LastIndex(addr, ":")
-		if portSep == -1 {
-			c.DestHost = addr
-			c.DestPort = 6667
-			c.DestTLS = false
-		} else {
-			c.DestHost = addr[0:portSep]
-			portParam := addr[portSep+1:]
-			if len(portParam) > 0 && portParam[0:1] == "+" {
-				c.DestTLS = true
-				c.DestPort, err = strconv.Atoi(portParam[1:])
-				if err != nil {
-					c.DestPort = 6697
-				}
-			} else {
-				c.DestPort, err = strconv.Atoi(portParam[0:])
-				if err != nil {
-					c.DestPort = 6667
-				}
-			}
-		}
-
-		// Don't send the HOST command upstream
-		return "", nil
-	}
-
-	// If the client supports CAP, assume the client also supports parsing MessageTags
-	// When upstream replies with its CAP listing, we check if message-tags is supported by the IRCd already and if so,
-	// we disable this feature flag again to use the IRCds native support.
-	if strings.ToUpper(message.Command) == "CAP" && len(message.Params) > 0 && strings.ToUpper(message.Params[0]) == "LS" {
-		c.Log(1, "Enabling client Messagetags feature")
-		c.Features.Messagetags = true
-	}
-
-	// If we are wrapping the Messagetags feature, make sure the clients REQ message-tags doesn't
-	// get sent upstream
-	if c.Features.Messagetags && strings.ToUpper(message.Command) == "CAP" && message.GetParamU(0, "") == "REQ" {
-		reqCaps := strings.ToLower(message.GetParam(1, ""))
-		capsThatEnableMessageTags := []string{"message-tags", "account-tag", "server-time", "batch"}
-
-		if strings.Contains(reqCaps, "message-tags") {
-			// Rebuild the list of requested caps, without message-tags
-			caps := strings.Split(reqCaps, " ")
-			newCaps := []string{}
-			for _, cap := range caps {
-				if !strings.Contains(strings.ToLower(cap), "message-tags") {
-					newCaps = append(newCaps, cap)
-				} else {
-					c.RequestedMessageTagsCap = cap
-				}
-			}
-
-			if len(newCaps) == 0 {
-				// The only requested CAP was our emulated message-tags
-				// the server will not be sending an ACK so we need to send our own
-				c.SendClientSignal("data", "CAP * ACK :"+c.RequestedMessageTagsCap)
-				return "", nil
-			}
-			message.Params[1] = strings.Join(newCaps, " ")
-			line = message.ToLine()
-		} else if !containsOneOf(reqCaps, capsThatEnableMessageTags) {
-			// Didn't request anything that needs message-tags cap so disable it
-			c.Features.Messagetags = false
-		}
-	}
-
-	if c.Features.Messagetags && message.Command == "TAGMSG" {
-		if len(message.Params) == 0 {
-			return "", nil
-		}
-
-		// We can't be 100% sure what this users correct mask is, so just send the nick
-		message.Prefix.Nick = c.IrcState.Nick
-		message.Prefix.Hostname = ""
-		message.Prefix.Username = ""
-
-		thisHost := strings.ToLower(c.UpstreamConfig.Hostname)
-		target := message.Params[0]
-		for val := range c.Gateway.Clients.IterBuffered() {
-			curClient := val.Val.(*Client)
-			sameHost := strings.ToLower(curClient.UpstreamConfig.Hostname) == thisHost
-			if !sameHost {
-				continue
-			}
-
-			// Only send the message on to either the target nick, or the clients in a set channel
-			if !strings.EqualFold(target, curClient.IrcState.Nick) && !curClient.IrcState.HasChannel(target) {
-				continue
-			}
-
-			curClient.SendClientSignal("data", message.ToLine())
-		}
-
-		return "", nil
-	}
-
-	// Check for any client message tags so that we can store them for replaying to other clients
-	if c.Features.Messagetags && c.Gateway.messageTags.CanMessageContainClientTags(message) {
-		c.Gateway.messageTags.AddTagsFromMessage(c, c.IrcState.Nick, message)
-		// Prevent any client tags heading upstream
-		for k := range message.Tags {
-			if len(k) > 0 && k[0] == '+' {
-				delete(message.Tags, k)
-			}
-		}
-
-		line = message.ToLine()
-	}
-
-	if c.Features.ExtJwt && strings.ToUpper(message.Command) == "EXTJWT" {
-		tokenTarget := message.GetParam(0, "")
-		tokenService := message.GetParam(1, "")
-
-		tokenM := irc.Message{}
-		tokenM.Command = "EXTJWT"
-		tokenM.Prefix = &c.ServerMessagePrefix
-		tokenData := jwt.MapClaims{
-			"exp":     time.Now().UTC().Add(1 * time.Minute).Unix(),
-			"iss":     c.UpstreamConfig.Hostname,
-			"sub":     c.IrcState.Nick,
-			"account": c.IrcState.Account,
-			"umodes":  []string{},
-
-			// Channel specific claims
-			"channel": "",
-			"joined":  0,
-			"cmodes":  []string{},
-		}
-
-		// Use the NetworkCommonAddress if a plugin as assigned one.
-		// This allows plugins to associate different upstream hosts to the same network
-		if c.UpstreamConfig.NetworkCommonAddress != "" {
-			tokenData["iss"] = c.UpstreamConfig.NetworkCommonAddress
-		}
-
-		if tokenTarget == "" || tokenTarget == "*" {
-			tokenM.Params = append(tokenM.Params, "*")
-		} else {
-			targetChan := c.IrcState.GetChannel(tokenTarget)
-			if targetChan == nil {
-				// Channel does not exist in IRC State, send so such channel message
-				failMessage := irc.Message{
-					Command: "403", // ERR_NOSUCHCHANNEL
-					Prefix:  &c.ServerMessagePrefix,
-					Params:  []string{c.IrcState.Nick, tokenTarget, "No such channel"},
-				}
-				c.SendClientSignal("data", failMessage.ToLine())
-				return "", nil
-			}
-
-			tokenM.Params = append(tokenM.Params, tokenTarget)
-
-			tokenData["channel"] = targetChan.Name
-			tokenData["joined"] = targetChan.Joined.Unix()
-
-			modes := []string{}
-			for mode := range targetChan.Modes {
-				modes = append(modes, mode)
-			}
-			tokenData["cmodes"] = modes
-		}
-
-		if tokenService == "" || tokenService == "*" {
-			tokenM.Params = append(tokenM.Params, "*")
-		} else {
-			c.SendIrcFail("EXTJWT", "NO_SUCH_SERVICE", "No such service")
-			return "", nil
-		}
-
-		token := jwt.NewWithClaims(jwt.SigningMethodHS256, tokenData)
-		tokenSigned, tokenSignedErr := token.SignedString([]byte(c.Gateway.Config.Secret))
-		if tokenSignedErr != nil {
-			c.Log(3, "Error creating JWT token. %s", tokenSignedErr.Error())
-			c.SendIrcFail("EXTJWT", "UNKNOWN_ERROR", "Failed to generate token")
-			return "", nil
-		}
-
-		// Spit token if it exceeds max length
-		for len(tokenSigned) > MAX_EXTJWT_SIZE {
-			tokenSignedPart := tokenSigned[:MAX_EXTJWT_SIZE]
-			tokenSigned = tokenSigned[MAX_EXTJWT_SIZE:]
-
-			tokenPartM := tokenM
-			tokenPartM.Params = append(tokenPartM.Params, "*", tokenSignedPart)
-			c.SendClientSignal("data", tokenPartM.ToLine())
-		}
-
-		tokenM.Params = append(tokenM.Params, tokenSigned)
-		c.SendClientSignal("data", tokenM.ToLine())
-
-		return "", nil
-	}
-
-	return line, nil
-}