From 4f3ebf0bfcf28b6633ac06238a488e86ee9ee5eb Mon Sep 17 00:00:00 2001
From: Bernhard B <schluchti@gmail.com>
Date: Tue, 26 Sep 2023 22:30:43 +0200
Subject: [PATCH] fixed bug in create group endpoint

link & permissions weren't correctly set

see #410
---
 src/api/api.go       | 35 +++++++++++++++++++------------
 src/client/client.go | 50 +++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 69 insertions(+), 16 deletions(-)

diff --git a/src/api/api.go b/src/api/api.go
index c1ba06d..58deb60 100644
--- a/src/api/api.go
+++ b/src/api/api.go
@@ -546,24 +546,33 @@ func (a *Api) CreateGroup(c *gin.Context) {
 		return
 	}
 
-	if req.Permissions.AddMembers != "" && !utils.StringInSlice(req.Permissions.AddMembers, []string{"every-member", "only-admins"}) {
-		c.JSON(400, Error{Msg: "Invalid add members permission provided - only 'every-member' and 'only-admins' allowed!"})
-		return
-	}
+	editGroupPermission := client.DefaultGroupPermission
+	addMembersPermission := client.DefaultGroupPermission
+	groupLinkState := client.DefaultGroupLinkState
 
-	if req.Permissions.EditGroup != "" && !utils.StringInSlice(req.Permissions.EditGroup, []string{"every-member", "only-admins"}) {
-		c.JSON(400, Error{Msg: "Invalid edit group permissions provided - only 'every-member' and 'only-admins' allowed!"})
-		return
+	if req.Permissions.AddMembers != "" {
+		if !utils.StringInSlice(req.Permissions.AddMembers, []string{"every-member", "only-admins"}) {
+			c.JSON(400, Error{Msg: "Invalid add members permission provided - only 'every-member' and 'only-admins' allowed!"})
+			return
+		}
+		addMembersPermission = addMembersPermission.FromString(req.Permissions.AddMembers)
 	}
 
-	if req.GroupLinkState != "" && !utils.StringInSlice(req.GroupLinkState, []string{"enabled", "enabled-with-approval", "disabled"}) {
-		c.JSON(400, Error{Msg: "Invalid group link provided - only 'enabled', 'enabled-with-approval' and 'disabled' allowed!"})
-		return
+	if req.Permissions.EditGroup != "" {
+		if !utils.StringInSlice(req.Permissions.EditGroup, []string{"every-member", "only-admins"}) {
+			c.JSON(400, Error{Msg: "Invalid edit group permissions provided - only 'every-member' and 'only-admins' allowed!"})
+			return
+		}
+		editGroupPermission = editGroupPermission.FromString(req.Permissions.EditGroup)
 	}
 
-	editGroupPermission := client.DefaultGroupPermission
-	addMembersPermission := client.DefaultGroupPermission
-	groupLinkState := client.DefaultGroupLinkState
+	if req.GroupLinkState != "" {
+		if !utils.StringInSlice(req.GroupLinkState, []string{"enabled", "enabled-with-approval", "disabled"}) {
+			c.JSON(400, Error{Msg: "Invalid group link provided - only 'enabled', 'enabled-with-approval' and 'disabled' allowed!"})
+			return
+		}
+		groupLinkState = groupLinkState.FromString(req.GroupLinkState)
+	}
 
 	groupId, err := a.signalClient.CreateGroup(number, req.Name, req.Members, req.Description, editGroupPermission, addMembersPermission, groupLinkState)
 	if err != nil {
diff --git a/src/client/client.go b/src/client/client.go
index 9171bfc..7ffab02 100644
--- a/src/client/client.go
+++ b/src/client/client.go
@@ -52,13 +52,37 @@ const (
 )
 
 func (g GroupPermission) String() string {
-	return []string{"", "default", "every-member", "only-admins"}[g]
+	return []string{"", "every-member", "only-admins"}[g]
+}
+
+func (g GroupPermission) FromString(input string) GroupPermission {
+	if input == "every-member" {
+		return EveryMember
+	}
+	if input == "only-admins" {
+		return OnlyAdmins
+	}
+	return DefaultGroupPermission
 }
 
 func (g GroupLinkState) String() string {
 	return []string{"", "enabled", "enabled-with-approval", "disabled"}[g]
 }
 
+func (g GroupLinkState) FromString(input string) GroupLinkState {
+	if input == "enabled" {
+		return Enabled
+	}
+	if input == "enabled-with-approval" {
+		return EnabledWithApproval
+	}
+	if input == "disabled" {
+		return Disabled
+	}
+
+	return DefaultGroupLinkState
+}
+
 type MessageMention struct {
 	Start  int64  `json:"start"`
 	Length int64  `json:"length"`
@@ -662,11 +686,31 @@ func (s *SignalClient) CreateGroup(number string, name string, members []string,
 	var internalGroupId string
 	if s.signalCliMode == JsonRpc {
 		type Request struct {
-			Name    string   `json:"name"`
-			Members []string `json:"members"`
+			Name        string   `json:"name"`
+			Members     []string `json:"members"`
+			Link        string   `json:"link,omitempty"`
+			Description string   `json:"description,omitempty"`
+			EditGroupPermissions string `json:"setPermissionEditDetails,omitempty"`
+			AddMembersPermissions string `json:"setPermissionAddMember,omitempty"`
 		}
 		request := Request{Name: name, Members: members}
 
+		if groupLinkState != DefaultGroupLinkState {
+			request.Link = groupLinkState.String()
+		}
+
+		if description != "" {
+			request.Description = description
+		}
+
+		if editGroupPermission != DefaultGroupPermission {
+			request.EditGroupPermissions = editGroupPermission.String()
+		}
+
+		if addMembersPermission != DefaultGroupPermission {
+			request.AddMembersPermissions = addMembersPermission.String()
+		}
+
 		jsonRpc2Client, err := s.getJsonRpc2Client(number)
 		if err != nil {
 			return "", err