split group chat models

4 years ago · f4c1df6342
7 changed files with 1262 additions and 1020 deletions
--- a/src/apps/group_chat/models.rs
+++ b/src/apps/group_chat/models.rs
--- a/src/apps/group_chat/models/consensus.rs
+++ b/src/apps/group_chat/models/consensus.rs
@ -0,0 +1,175 @@
				@@ -0,0 +1,175 @@
+use std::path::PathBuf;
+use tdn::types::{group::GroupId, primitive::Result};
+use tdn_storage::local::{DStorage, DsValue};
+
+use group_chat_types::PackedEvent;
+
+use super::{to_network_message, Member, Message};
+
+pub(crate) enum ConsensusType {
+    GroupInfo,
+    GroupTransfer,
+    GroupManagerAdd,
+    GroupManagerDel,
+    GroupClose,
+    MemberInfo,
+    MemberJoin,
+    MemberLeave,
+    MessageCreate,
+    None,
+}
+
+impl ConsensusType {
+    fn to_i64(&self) -> i64 {
+        match self {
+            ConsensusType::None => 0,
+            ConsensusType::GroupInfo => 1,
+            ConsensusType::GroupTransfer => 2,
+            ConsensusType::GroupManagerAdd => 3,
+            ConsensusType::GroupManagerDel => 4,
+            ConsensusType::GroupClose => 5,
+            ConsensusType::MemberInfo => 6,
+            ConsensusType::MemberJoin => 7,
+            ConsensusType::MemberLeave => 8,
+            ConsensusType::MessageCreate => 9,
+        }
+    }
+
+    fn from_i64(a: i64) -> Self {
+        match a {
+            1 => ConsensusType::GroupInfo,
+            2 => ConsensusType::GroupTransfer,
+            3 => ConsensusType::GroupManagerAdd,
+            4 => ConsensusType::GroupManagerDel,
+            5 => ConsensusType::GroupClose,
+            6 => ConsensusType::MemberInfo,
+            7 => ConsensusType::MemberJoin,
+            8 => ConsensusType::MemberLeave,
+            9 => ConsensusType::MessageCreate,
+            _ => ConsensusType::None,
+        }
+    }
+}
+
+/// Group Chat Consensus.
+pub(crate) struct Consensus {
+    /// db auto-increment id.
+    id: i64,
+    /// group's db id.
+    fid: i64,
+    /// group's height.
+    height: i64,
+    /// consensus type.
+    ctype: ConsensusType,
+    /// consensus point value db id.
+    cid: i64,
+}
+
+impl Consensus {
+    fn from_values(mut v: Vec<DsValue>) -> Consensus {
+        Consensus {
+            cid: v.pop().unwrap().as_i64(),
+            ctype: ConsensusType::from_i64(v.pop().unwrap().as_i64()),
+            height: v.pop().unwrap().as_i64(),
+            fid: v.pop().unwrap().as_i64(),
+            id: v.pop().unwrap().as_i64(),
+        }
+    }
+
+    pub async fn pack(
+        db: &DStorage,
+        base: &PathBuf,
+        gcd: &GroupId,
+        fid: &i64,
+        from: &i64,
+        to: &i64,
+    ) -> Result<Vec<PackedEvent>> {
+        let matrix = db.query(&format!(
+            "SELECT id, fid, height, ctype, cid FROM consensus WHERE fid = {} AND height BETWEEN {} AND {}", fid, from, to))?;
+
+        let mut packed = vec![];
+        let mut consensuses = vec![];
+        for res in matrix {
+            consensuses.push(Consensus::from_values(res));
+        }
+
+        for consensus in consensuses {
+            match consensus.ctype {
+                ConsensusType::GroupInfo => {
+                    //
+                }
+                ConsensusType::GroupTransfer => {
+                    //
+                }
+                ConsensusType::GroupManagerAdd => {
+                    //
+                }
+                ConsensusType::GroupManagerDel => {
+                    //
+                }
+                ConsensusType::GroupClose => {
+                    //
+                }
+                ConsensusType::MemberInfo => {
+                    //
+                }
+                ConsensusType::MemberJoin => {
+                    let m = Member::get(db, &consensus.cid)?;
+                    // TODO load member avatar.
+                    let mavatar = vec![];
+                    packed.push(PackedEvent::MemberJoin(
+                        m.m_id, m.m_addr, m.m_name, mavatar, m.datetime,
+                    ))
+                }
+                ConsensusType::MemberLeave => {
+                    //
+                }
+                ConsensusType::MessageCreate => {
+                    let m = Message::get(db, &consensus.cid)?;
+                    let datetime = m.datetime;
+                    let mem = Member::get(db, &m.mid)?;
+                    let (nmsg, _) = to_network_message(base, gcd, m.m_type, &m.content).await?;
+                    packed.push(PackedEvent::MessageCreate(mem.m_id, nmsg, datetime))
+                }
+                ConsensusType::None => {
+                    // None
+                }
+            }
+        }
+
+        Ok(packed)
+    }
+
+    pub async fn insert(
+        db: &DStorage,
+        fid: &i64,
+        height: &i64,
+        cid: &i64,
+        ctype: &ConsensusType,
+    ) -> Result<()> {
+        let unique_check = db.query(&format!(
+            "SELECT id from consensus WHERE fid = {} AND height = {}",
+            fid, height
+        ));
+
+        if let Ok(mut rec) = unique_check {
+            let id = rec.pop().unwrap().pop().unwrap().as_i64();
+            let _ = db.query(&format!(
+                "UPDATE consensus SET ctype = {}, cid = {} WHERE id = {}",
+                ctype.to_i64(),
+                cid,
+                id
+            ))?;
+        } else {
+            let _ = db.query(&format!(
+                "INSERT INTO consensus ( fid, height, ctype, cid ) VALUES ( {}, {}, {}, {} )",
+                fid,
+                height,
+                ctype.to_i64(),
+                cid
+            ))?;
+        }
+
+        Ok(())
+    }
+}
--- a/src/apps/group_chat/models/group.rs
+++ b/src/apps/group_chat/models/group.rs
@ -0,0 +1,366 @@
				@@ -0,0 +1,366 @@
+use rand::Rng;
+use std::path::PathBuf;
+use std::time::{SystemTime, UNIX_EPOCH};
+use tdn::types::{
+    group::GroupId,
+    primitive::{PeerAddr, Result},
+    rpc::{json, RpcParam},
+};
+use tdn_storage::local::{DStorage, DsValue};
+
+use group_chat_types::{GroupInfo, GroupType};
+
+use crate::session::{Session, SessionType};
+use crate::storage::write_avatar_sync;
+
+use super::GroupChatKey;
+
+/// Group Chat Model.
+pub(crate) struct GroupChat {
+    /// db auto-increment id.
+    pub id: i64,
+    /// consensus height.
+    pub height: i64,
+    /// group chat owner.
+    pub owner: GroupId,
+    /// group chat id.
+    pub g_id: GroupId,
+    /// group chat type.
+    pub g_type: GroupType,
+    /// group chat server addresse.
+    pub g_addr: PeerAddr,
+    /// group chat name.
+    pub g_name: String,
+    /// group chat simple intro.
+    g_bio: String,
+    /// group chat is created ok.
+    is_ok: bool,
+    /// group chat is closed.
+    is_closed: bool,
+    /// group chat need manager agree.
+    is_need_agree: bool,
+    /// group chat encrypted-key.
+    pub key: GroupChatKey,
+    /// group chat created time.
+    pub datetime: i64,
+    /// is remote.
+    pub is_remote: bool,
+}
+
+impl GroupChat {
+    pub fn new(
+        owner: GroupId,
+        g_type: GroupType,
+        g_addr: PeerAddr,
+        g_name: String,
+        g_bio: String,
+        is_need_agree: bool,
+        is_ok: bool,
+        is_remote: bool,
+    ) -> Self {
+        let g_id = GroupId(rand::thread_rng().gen::<[u8; 32]>());
+
+        let start = SystemTime::now();
+        let datetime = start
+            .duration_since(UNIX_EPOCH)
+            .map(|s| s.as_secs())
+            .unwrap_or(0) as i64; // safe for all life.
+
+        let key = GroupChatKey(vec![]);
+
+        Self {
+            owner,
+            g_id,
+            g_type,
+            g_addr,
+            g_name,
+            g_bio,
+            is_need_agree,
+            key,
+            datetime,
+            is_ok,
+            is_remote,
+            id: 0,
+            height: 0,
+            is_closed: false,
+        }
+    }
+
+    fn new_from(
+        g_id: GroupId,
+        height: i64,
+        owner: GroupId,
+        g_type: GroupType,
+        g_addr: PeerAddr,
+        g_name: String,
+        g_bio: String,
+        is_need_agree: bool,
+        key: GroupChatKey,
+        is_remote: bool,
+    ) -> Self {
+        let start = SystemTime::now();
+        let datetime = start
+            .duration_since(UNIX_EPOCH)
+            .map(|s| s.as_secs())
+            .unwrap_or(0) as i64; // safe for all life.
+
+        Self {
+            owner,
+            g_id,
+            g_type,
+            g_addr,
+            g_name,
+            g_bio,
+            is_need_agree,
+            key,
+            datetime,
+            id: 0,
+            height,
+            is_remote,
+            is_ok: true,
+            is_closed: false,
+        }
+    }
+
+    pub fn from_info(
+        key: GroupChatKey,
+        info: GroupInfo,
+        height: i64,
+        addr: PeerAddr,
+        base: &PathBuf,
+        mgid: &GroupId,
+        is_remote: bool,
+    ) -> Result<Self> {
+        match info {
+            GroupInfo::Common(owner, _, _, g_id, g_type, agree, name, g_bio, avatar) => {
+                write_avatar_sync(base, &mgid, &g_id, avatar)?;
+                Ok(Self::new_from(
+                    g_id, height, owner, g_type, addr, name, g_bio, agree, key, is_remote,
+                ))
+            }
+            GroupInfo::Encrypted(owner, _, _, g_id, agree, _hash, _name, _bio, avatar) => {
+                // TODO decrypted.
+
+                let g_type = GroupType::Encrypted;
+                let name = "".to_owned();
+                let bio = "".to_owned();
+
+                write_avatar_sync(base, &mgid, &g_id, avatar)?;
+
+                Ok(Self::new_from(
+                    g_id, height, owner, g_type, addr, name, bio, agree, key, is_remote,
+                ))
+            }
+        }
+    }
+
+    pub fn to_session(&self) -> Session {
+        Session::new(
+            self.id,
+            self.g_id,
+            self.g_addr,
+            SessionType::Group,
+            self.g_name.clone(),
+            self.datetime,
+        )
+    }
+
+    pub fn to_group_info(self, name: String, avatar: Vec<u8>, owner_avatar: Vec<u8>) -> GroupInfo {
+        match self.g_type {
+            GroupType::Private | GroupType::Open => GroupInfo::Common(
+                self.owner,
+                name,
+                owner_avatar,
+                self.g_id,
+                self.g_type,
+                self.is_need_agree,
+                self.g_name,
+                self.g_bio,
+                avatar,
+            ),
+            GroupType::Encrypted => GroupInfo::Common(
+                // TODO encrypted
+                self.owner,
+                name,
+                owner_avatar,
+                self.g_id,
+                self.g_type,
+                self.is_need_agree,
+                self.g_name,
+                self.g_bio,
+                avatar,
+            ),
+        }
+    }
+
+    pub fn to_rpc(&self) -> RpcParam {
+        json!([
+            self.id,
+            self.owner.to_hex(),
+            self.g_id.to_hex(),
+            self.g_type.to_u32(),
+            self.g_addr.to_hex(),
+            self.g_name,
+            self.g_bio,
+            self.is_ok,
+            self.is_closed,
+            self.is_need_agree,
+            self.is_remote,
+        ])
+    }
+
+    fn from_values(mut v: Vec<DsValue>) -> Self {
+        Self {
+            is_remote: v.pop().unwrap().as_bool(),
+            datetime: v.pop().unwrap().as_i64(),
+            key: GroupChatKey::from_hex(v.pop().unwrap().as_string())
+                .unwrap_or(GroupChatKey::new(vec![])),
+            is_closed: v.pop().unwrap().as_bool(),
+            is_need_agree: v.pop().unwrap().as_bool(),
+            is_ok: v.pop().unwrap().as_bool(),
+            g_bio: v.pop().unwrap().as_string(),
+            g_name: v.pop().unwrap().as_string(),
+            g_addr: PeerAddr::from_hex(v.pop().unwrap().as_string()).unwrap_or(Default::default()),
+            g_type: GroupType::from_u32(v.pop().unwrap().as_i64() as u32),
+            g_id: GroupId::from_hex(v.pop().unwrap().as_string()).unwrap_or(Default::default()),
+            owner: GroupId::from_hex(v.pop().unwrap().as_string()).unwrap_or(Default::default()),
+            height: v.pop().unwrap().as_i64(),
+            id: v.pop().unwrap().as_i64(),
+        }
+    }
+
+    /// use in rpc when load account friends.
+    pub fn all(db: &DStorage) -> Result<Vec<GroupChat>> {
+        let matrix = db.query("SELECT id, height, owner, gcd, gtype, addr, name, bio, is_ok, is_need_agree, is_closed, key, datetime, is_remote FROM groups WHERE is_deleted = false")?;
+        let mut groups = vec![];
+        for values in matrix {
+            groups.push(GroupChat::from_values(values));
+        }
+        Ok(groups)
+    }
+
+    /// use in rpc when load account groups.
+    pub fn all_ok(db: &DStorage) -> Result<Vec<GroupChat>> {
+        let matrix = db.query("SELECT id, height, owner, gcd, gtype, addr, name, bio, is_ok, is_need_agree, is_closed, key, datetime, is_remote FROM groups WHERE is_closed = false")?;
+        let mut groups = vec![];
+        for values in matrix {
+            groups.push(GroupChat::from_values(values));
+        }
+        Ok(groups)
+    }
+
+    /// list all local group chat as running layer.
+    pub fn all_local(db: &DStorage, owner: &GroupId) -> Result<Vec<(i64, GroupId, i64)>> {
+        let matrix = db.query(&format!("SELECT id, gcd, height FROM groups WHERE owner = '{}' and is_remote = false and is_closed = false", owner.to_hex()))?;
+        let mut groups = vec![];
+        for mut values in matrix {
+            let height = values.pop().unwrap().as_i64();
+            let gcd =
+                GroupId::from_hex(values.pop().unwrap().as_string()).unwrap_or(Default::default());
+            let id = values.pop().unwrap().as_i64();
+            groups.push((id, gcd, height));
+        }
+        Ok(groups)
+    }
+
+    pub fn get(db: &DStorage, gid: &GroupId) -> Result<Option<GroupChat>> {
+        let sql = format!("SELECT id, height, owner, gcd, gtype, addr, name, bio, is_ok, is_need_agree, is_closed, key, datetime, is_remote FROM groups WHERE gcd = '{}' AND is_deleted = false", gid.to_hex());
+        let mut matrix = db.query(&sql)?;
+        if matrix.len() > 0 {
+            let values = matrix.pop().unwrap(); // safe unwrap()
+            return Ok(Some(GroupChat::from_values(values)));
+        }
+        Ok(None)
+    }
+
+    pub fn get_id(db: &DStorage, id: &i64) -> Result<Option<GroupChat>> {
+        let sql = format!("SELECT id, height, owner, gcd, gtype, addr, name, bio, is_ok, is_need_agree, is_closed, key, datetime, is_remote FROM groups WHERE id = {} AND is_deleted = false", id);
+        let mut matrix = db.query(&sql)?;
+        if matrix.len() > 0 {
+            let values = matrix.pop().unwrap(); // safe unwrap()
+            return Ok(Some(GroupChat::from_values(values)));
+        }
+        Ok(None)
+    }
+
+    pub fn insert(&mut self, db: &DStorage) -> Result<()> {
+        let mut unique_check = db.query(&format!(
+            "SELECT id from groups WHERE gcd = '{}'",
+            self.g_id.to_hex()
+        ))?;
+        if unique_check.len() > 0 {
+            let id = unique_check.pop().unwrap().pop().unwrap().as_i64();
+            self.id = id;
+            let sql = format!("UPDATE groups SET height = {}, owner = '{}', gtype = {}, addr='{}', name = '{}', bio = '{}', is_ok = {}, is_need_agree = {}, is_closed = {}, key = '{}', datetime = {}, is_remote = {}, is_deleted = false WHERE id = {}",
+                self.height,
+                self.owner.to_hex(),
+                self.g_type.to_u32(),
+                self.g_addr.to_hex(),
+                self.g_name,
+                self.g_bio,
+                self.is_ok,
+                self.is_need_agree,
+                self.is_closed,
+                self.key.to_hex(),
+                self.datetime,
+                self.is_remote,
+                self.id
+            );
+            db.update(&sql)?;
+        } else {
+            let sql = format!("INSERT INTO groups (height, owner, gcd, gtype, addr, name, bio, is_ok, is_need_agree, is_closed, key, datetime, is_remote, is_deleted) VALUES ({}, '{}', '{}', {}, '{}', '{}', '{}', {}, {}, {}, '{}', {}, {}, false)",
+                self.height,
+                self.owner.to_hex(),
+                self.g_id.to_hex(),
+                self.g_type.to_u32(),
+                self.g_addr.to_hex(),
+                self.g_name,
+                self.g_bio,
+                self.is_ok,
+                self.is_need_agree,
+                self.is_closed,
+                self.key.to_hex(),
+                self.datetime,
+                self.is_remote,
+            );
+            let id = db.insert(&sql)?;
+            self.id = id;
+        }
+        Ok(())
+    }
+
+    pub fn ok(&mut self, db: &DStorage) -> Result<usize> {
+        self.is_ok = true;
+        let sql = format!("UPDATE groups SET is_ok=1 WHERE id = {}", self.id);
+        db.update(&sql)
+    }
+
+    pub fn add_height(db: &DStorage, id: i64, height: i64) -> Result<usize> {
+        let sql = format!("UPDATE groups SET height={} WHERE id = {}", height, id,);
+        db.update(&sql)
+    }
+
+    pub fn close(db: &DStorage, id: &i64) -> Result<usize> {
+        let sql = format!("UPDATE groups SET is_closed = 1 WHERE id = {}", id);
+        db.update(&sql)
+    }
+
+    /// return if is closed
+    pub fn delete(db: &DStorage, id: &i64) -> Result<bool> {
+        let sql = format!("SELECT is_closed FROM groups WHERE id = {}", id);
+        let mut matrix = db.query(&sql)?;
+        let is_closed = if let Some(mut value) = matrix.pop() {
+            value.pop().unwrap().as_bool() // safe unwrap
+        } else {
+            false
+        };
+
+        let sql = format!(
+            "UPDATE groups SET is_closed = 1, is_deleted = 1 WHERE id = {}",
+            id
+        );
+        db.update(&sql)?;
+
+        Ok(is_closed)
+    }
+}
--- a/src/apps/group_chat/models/member.rs
+++ b/src/apps/group_chat/models/member.rs
@ -0,0 +1,196 @@
				@@ -0,0 +1,196 @@
+use rand::Rng;
+use tdn::types::{
+    group::GroupId,
+    primitive::{PeerAddr, Result},
+    rpc::{json, RpcParam},
+};
+use tdn_storage::local::{DStorage, DsValue};
+
+/// Group Member Model.
+pub(crate) struct Member {
+    /// db auto-increment id.
+    id: i64,
+    /// group's db id.
+    fid: i64,
+    /// member's Did(GroupId)
+    pub m_id: GroupId,
+    /// member's addresse.
+    pub m_addr: PeerAddr,
+    /// member's name.
+    pub m_name: String,
+    /// is group chat manager.
+    is_manager: bool,
+    /// is member is block by me.
+    is_block: bool,
+    /// member's joined time.
+    pub datetime: i64,
+    /// member is leave or delete.
+    is_deleted: bool,
+}
+
+impl Member {
+    pub fn new(
+        fid: i64,
+        m_id: GroupId,
+        m_addr: PeerAddr,
+        m_name: String,
+        is_manager: bool,
+        datetime: i64,
+    ) -> Self {
+        Self {
+            fid,
+            m_id,
+            m_addr,
+            m_name,
+            is_manager,
+            datetime,
+            id: 0,
+            is_block: false,
+            is_deleted: false,
+        }
+    }
+
+    pub fn to_rpc(&self) -> RpcParam {
+        json!([
+            self.id,
+            self.fid,
+            self.m_id.to_hex(),
+            self.m_addr.to_hex(),
+            self.m_name,
+            self.is_manager,
+            self.is_block,
+        ])
+    }
+
+    fn from_values(mut v: Vec<DsValue>, contains_deleted: bool) -> Self {
+        let is_deleted = if contains_deleted {
+            v.pop().unwrap().as_bool()
+        } else {
+            false
+        };
+
+        Self {
+            is_deleted,
+            datetime: v.pop().unwrap().as_i64(),
+            is_block: v.pop().unwrap().as_bool(),
+            is_manager: v.pop().unwrap().as_bool(),
+            m_name: v.pop().unwrap().as_string(),
+            m_addr: PeerAddr::from_hex(v.pop().unwrap().as_string()).unwrap_or(Default::default()),
+            m_id: GroupId::from_hex(v.pop().unwrap().as_string()).unwrap_or(Default::default()),
+            fid: v.pop().unwrap().as_i64(),
+            id: v.pop().unwrap().as_i64(),
+        }
+    }
+
+    pub fn all(db: &DStorage, fid: &i64) -> Result<Vec<Member>> {
+        let matrix = db.query(&format!(
+            "SELECT id, fid, mid, addr, name, is_manager, is_block, datetime FROM members WHERE is_deleted = false AND fid = {}", fid))?;
+        let mut groups = vec![];
+        for values in matrix {
+            groups.push(Member::from_values(values, false));
+        }
+        Ok(groups)
+    }
+
+    pub fn insert(&mut self, db: &DStorage) -> Result<()> {
+        let mut unique_check = db.query(&format!(
+            "SELECT id from members WHERE fid = {} AND mid = '{}'",
+            self.fid,
+            self.m_id.to_hex()
+        ))?;
+        if unique_check.len() > 0 {
+            let id = unique_check.pop().unwrap().pop().unwrap().as_i64();
+            self.id = id;
+            let sql = format!("UPDATE members SET addr='{}', name = '{}', is_manager = {}, datetime = {}, is_delete = false WHERE id = {}",
+                self.m_addr.to_hex(),
+                self.m_name,
+                self.is_manager,
+                self.datetime,
+                self.id,
+            );
+            db.update(&sql)?;
+        } else {
+            let sql = format!("INSERT INTO members (fid, mid, addr, name, is_manager, is_block, datetime, is_deleted) VALUES ({}, '{}', '{}', '{}', {}, {}, {}, false)",
+            self.fid,
+            self.m_id.to_hex(),
+            self.m_addr.to_hex(),
+            self.m_name,
+            self.is_manager,
+            self.is_block,
+            self.datetime,
+        );
+            let id = db.insert(&sql)?;
+            self.id = id;
+        }
+        Ok(())
+    }
+
+    pub fn get(db: &DStorage, id: &i64) -> Result<Member> {
+        let mut matrix = db.query(&format!(
+            "SELECT id, fid, m_id, m_addr, m_name, is_manager, is_block, datetime FROM members WHERE id = {}",
+            id,
+        ))?;
+        if matrix.len() > 0 {
+            Ok(Member::from_values(matrix.pop().unwrap(), false)) // safe unwrap.
+        } else {
+            Err(anyhow!("missing member"))
+        }
+    }
+
+    pub fn get_id(db: &DStorage, fid: &i64, mid: &GroupId) -> Result<i64> {
+        let mut matrix = db.query(&format!(
+            "SELECT id FROM members WHERE fid = {} AND mid = '{}' AND is_delete = false",
+            fid,
+            mid.to_hex()
+        ))?;
+        if matrix.len() > 0 {
+            Ok(matrix.pop().unwrap().pop().unwrap().as_i64()) // safe unwrap.
+        } else {
+            Err(anyhow!("missing member"))
+        }
+    }
+
+    /// get member not deleted, not blocked.
+    pub fn get_ok(db: &DStorage, fid: &i64, mid: &GroupId) -> Result<i64> {
+        let mut matrix = db.query(&format!(
+            "SELECT id FROM members WHERE is_deleted = false AND is_block = false AND fid = {} AND mid = '{}'",
+            fid,
+            mid.to_hex()
+        ))?;
+        if matrix.len() > 0 {
+            Ok(matrix.pop().unwrap().pop().unwrap().as_i64()) // safe unwrap.
+        } else {
+            Err(anyhow!("missing member"))
+        }
+    }
+
+    pub fn addr_update(db: &DStorage, fid: &i64, mid: &GroupId, addr: &PeerAddr) -> Result<usize> {
+        let sql = format!(
+            "UPDATE members SET addr='{}' WHERE fid = {} AND mid = '{}'",
+            addr.to_hex(),
+            fid,
+            mid.to_hex(),
+        );
+        db.update(&sql)
+    }
+
+    pub fn update(db: &DStorage, id: &i64, addr: &PeerAddr, name: &str) -> Result<usize> {
+        let sql = format!(
+            "UPDATE members SET addr='{}', name='{}' WHERE id = {}",
+            addr.to_hex(),
+            name,
+            id,
+        );
+        db.update(&sql)
+    }
+
+    pub fn leave(db: &DStorage, id: &i64) -> Result<usize> {
+        let sql = format!("UPDATE members SET is_deleted = 1 WHERE id = {}", id);
+        db.update(&sql)
+    }
+
+    pub fn block(db: &DStorage, id: &i64, block: bool) -> Result<usize> {
+        let sql = format!("UPDATE members SET is_block={} WHERE id = {}", block, id,);
+        db.update(&sql)
+    }
+}
--- a/src/apps/group_chat/models/message.rs
+++ b/src/apps/group_chat/models/message.rs
@ -0,0 +1,292 @@
				@@ -0,0 +1,292 @@
+use rand::Rng;
+use std::path::PathBuf;
+use std::time::{SystemTime, UNIX_EPOCH};
+use tdn::types::{
+    group::GroupId,
+    primitive::Result,
+    rpc::{json, RpcParam},
+};
+use tdn_storage::local::{DStorage, DsValue};
+
+use group_chat_types::NetworkMessage;
+
+use crate::apps::chat::{Friend, MessageType};
+use crate::storage::{
+    chat_db, group_chat_db, read_avatar, read_file, read_record, write_avatar_sync,
+    write_file_sync, write_image_sync, write_record_sync,
+};
+
+use super::Member;
+
+/// Group Chat Message Model.
+pub(crate) struct Message {
+    /// db auto-increment id.
+    id: i64,
+    /// group message consensus height.
+    height: i64,
+    /// group's db id.
+    fid: i64,
+    /// member's db id.
+    pub mid: i64,
+    /// message is mine.
+    is_me: bool,
+    /// message type.
+    pub m_type: MessageType,
+    /// message content.
+    pub content: String,
+    /// message is delivery.
+    is_delivery: bool,
+    /// message created time.
+    pub datetime: i64,
+}
+
+impl Message {
+    pub(crate) fn new_with_time(
+        height: i64,
+        fid: i64,
+        mid: i64,
+        is_me: bool,
+        m_type: MessageType,
+        content: String,
+        datetime: i64,
+    ) -> Message {
+        Self {
+            fid,
+            mid,
+            m_type,
+            content,
+            datetime,
+            height,
+            is_me,
+            is_delivery: true,
+            id: 0,
+        }
+    }
+    pub(crate) fn new(
+        height: i64,
+        fid: i64,
+        mid: i64,
+        is_me: bool,
+        m_type: MessageType,
+        content: String,
+    ) -> Message {
+        let start = SystemTime::now();
+        let datetime = start
+            .duration_since(UNIX_EPOCH)
+            .map(|s| s.as_secs())
+            .unwrap_or(0) as i64; // safe for all life.
+
+        Self::new_with_time(height, fid, mid, is_me, m_type, content, datetime)
+    }
+
+    /// here is zero-copy and unwrap is safe. checked.
+    fn from_values(mut v: Vec<DsValue>) -> Message {
+        Message {
+            datetime: v.pop().unwrap().as_i64(),
+            is_delivery: v.pop().unwrap().as_bool(),
+            content: v.pop().unwrap().as_string(),
+            m_type: MessageType::from_int(v.pop().unwrap().as_i64()),
+            is_me: v.pop().unwrap().as_bool(),
+            mid: v.pop().unwrap().as_i64(),
+            fid: v.pop().unwrap().as_i64(),
+            height: v.pop().unwrap().as_i64(),
+            id: v.pop().unwrap().as_i64(),
+        }
+    }
+
+    pub fn to_rpc(&self) -> RpcParam {
+        json!([
+            self.id,
+            self.height,
+            self.fid,
+            self.mid,
+            self.is_me,
+            self.m_type.to_int(),
+            self.content,
+            self.is_delivery,
+            self.datetime,
+        ])
+    }
+
+    pub fn get(db: &DStorage, id: &i64) -> Result<Message> {
+        let mut matrix = db.query(&format!("SELECT id, height, fid, mid, is_me, m_type, content, is_delivery, datetime FROM messages WHERE id = {}", id))?;
+        if matrix.len() > 0 {
+            Ok(Message::from_values(matrix.pop().unwrap())) // safe unwrap.
+        } else {
+            Err(anyhow!("missing member"))
+        }
+    }
+
+    pub fn all(db: &DStorage, fid: &i64) -> Result<Vec<Message>> {
+        let matrix = db.query(&format!("SELECT id, height, fid, mid, is_me, m_type, content, is_delivery, datetime FROM messages WHERE is_deleted = false AND fid = {}", fid))?;
+        let mut groups = vec![];
+        for values in matrix {
+            groups.push(Message::from_values(values));
+        }
+        Ok(groups)
+    }
+
+    pub fn insert(&mut self, db: &DStorage) -> Result<()> {
+        let mut unique_check = db.query(&format!(
+            "SELECT id from messages WHERE fid = {} AND height = {}",
+            self.fid, self.height
+        ))?;
+        if unique_check.len() > 0 {
+            let id = unique_check.pop().unwrap().pop().unwrap().as_i64();
+            self.id = id;
+        } else {
+            let sql = format!("INSERT INTO messages (height, fid, mid, is_me, m_type, content, is_delivery, datetime, is_deleted) VALUES ({}, {}, {}, {}, {}, '{}', {}, {}, false)",
+                self.height,
+                self.fid,
+                self.mid,
+                self.is_me,
+                self.m_type.to_int(),
+                self.content,
+                self.is_delivery,
+                self.datetime,
+            );
+            let id = db.insert(&sql)?;
+            self.id = id;
+        }
+        Ok(())
+    }
+}
+
+pub(crate) async fn to_network_message(
+    base: &PathBuf,
+    gid: &GroupId,
+    mtype: MessageType,
+    content: &str,
+) -> Result<(NetworkMessage, i64)> {
+    let start = SystemTime::now();
+    let datetime = start
+        .duration_since(UNIX_EPOCH)
+        .map(|s| s.as_secs())
+        .unwrap_or(0) as i64; // safe for all life.
+
+    let nmsg = match mtype {
+        MessageType::String => NetworkMessage::String(content.to_owned()),
+        MessageType::Image => {
+            let bytes = read_file(&PathBuf::from(content)).await?;
+            NetworkMessage::Image(bytes)
+        }
+        MessageType::File => {
+            let file_path = PathBuf::from(content);
+            let bytes = read_file(&file_path).await?;
+            let old_name = file_path
+                .file_name()
+                .and_then(|s| s.to_str())
+                .unwrap_or("")
+                .to_owned();
+            NetworkMessage::File(old_name, bytes)
+        }
+        MessageType::Contact => {
+            let cid: i64 = content.parse()?;
+            let db = chat_db(base, gid)?;
+            let contact = Friend::get_id(&db, cid)?.ok_or(anyhow!("contact missind"))?;
+            drop(db);
+            let avatar_bytes = read_avatar(base, &gid, &contact.gid).await?;
+            NetworkMessage::Contact(contact.name, contact.gid, contact.addr, avatar_bytes)
+        }
+        MessageType::Record => {
+            let (bytes, time) = if let Some(i) = content.find('-') {
+                let time = content[0..i].parse().unwrap_or(0);
+                let bytes = read_record(base, &gid, &content[i + 1..]).await?;
+                (bytes, time)
+            } else {
+                (vec![], 0)
+            };
+            NetworkMessage::Record(bytes, time)
+        }
+        MessageType::Emoji => {
+            // TODO
+            NetworkMessage::Emoji
+        }
+        MessageType::Phone => {
+            // TODO
+            NetworkMessage::Phone
+        }
+        MessageType::Video => {
+            // TODO
+            NetworkMessage::Video
+        }
+        MessageType::Invite => NetworkMessage::Invite(content.to_owned()),
+    };
+
+    Ok((nmsg, datetime))
+}
+
+pub(crate) fn from_network_message(
+    height: i64,
+    gdid: i64,
+    mid: GroupId,
+    mgid: &GroupId,
+    msg: NetworkMessage,
+    datetime: i64,
+    base: &PathBuf,
+) -> Result<(Message, String)> {
+    let db = group_chat_db(base, mgid)?;
+    let mdid = Member::get_ok(&db, &gdid, &mid)?;
+    let is_me = &mid == mgid;
+
+    // handle event.
+    let (m_type, raw) = match msg {
+        NetworkMessage::String(content) => (MessageType::String, content),
+        NetworkMessage::Image(bytes) => {
+            let image_name = write_image_sync(base, mgid, bytes)?;
+            (MessageType::Image, image_name)
+        }
+        NetworkMessage::File(old_name, bytes) => {
+            let filename = write_file_sync(base, mgid, &old_name, bytes)?;
+            (MessageType::File, filename)
+        }
+        NetworkMessage::Contact(name, rgid, addr, avatar_bytes) => {
+            write_avatar_sync(base, mgid, &rgid, avatar_bytes)?;
+            let tmp_name = name.replace(";", "-;");
+            let contact_values = format!("{};;{};;{}", tmp_name, rgid.to_hex(), addr.to_hex());
+            (MessageType::Contact, contact_values)
+        }
+        NetworkMessage::Emoji => {
+            // TODO
+            (MessageType::Emoji, "".to_owned())
+        }
+        NetworkMessage::Record(bytes, time) => {
+            let record_name = write_record_sync(base, mgid, gdid, time, bytes)?;
+            (MessageType::Record, record_name)
+        }
+        NetworkMessage::Phone => {
+            // TODO
+            (MessageType::Phone, "".to_owned())
+        }
+        NetworkMessage::Video => {
+            // TODO
+            (MessageType::Video, "".to_owned())
+        }
+        NetworkMessage::Invite(content) => (MessageType::Invite, content),
+        NetworkMessage::None => {
+            return Ok((
+                Message::new(
+                    height,
+                    gdid,
+                    mdid,
+                    is_me,
+                    MessageType::String,
+                    "".to_owned(),
+                ),
+                "".to_owned(),
+            ));
+        }
+    };
+
+    let scontent = match m_type {
+        MessageType::String => {
+            format!("{}:{}", m_type.to_int(), raw)
+        }
+        _ => format!("{}:", m_type.to_int()),
+    };
+
+    let mut msg = Message::new_with_time(height, gdid, mdid, is_me, m_type, raw, datetime);
+    msg.insert(&db)?;
+
+    Ok((msg, scontent))
+}
--- a/src/apps/group_chat/models/request.rs
+++ b/src/apps/group_chat/models/request.rs
@ -0,0 +1,210 @@
				@@ -0,0 +1,210 @@
+use rand::Rng;
+use std::time::{SystemTime, UNIX_EPOCH};
+use tdn::types::{
+    group::GroupId,
+    primitive::{PeerAddr, Result},
+    rpc::{json, RpcParam},
+};
+use tdn_storage::local::{DStorage, DsValue};
+
+use super::GroupChatKey;
+
+/// Group Join Request model. include my requests and other requests.
+/// When fid is 0, it's my requests.
+pub(crate) struct Request {
+    id: i64,
+    fid: i64,
+    rid: i64,
+    pub gid: GroupId,
+    pub addr: PeerAddr,
+    pub name: String,
+    key: GroupChatKey,
+    remark: String,
+    is_ok: bool,
+    is_over: bool,
+    datetime: i64,
+    is_deleted: bool,
+}
+
+impl Request {
+    pub fn new_by_remote(
+        fid: i64,
+        rid: i64,
+        gid: GroupId,
+        addr: PeerAddr,
+        name: String,
+        remark: String,
+        datetime: i64,
+    ) -> Self {
+        Self {
+            fid,
+            rid,
+            gid,
+            addr,
+            name,
+            remark,
+            datetime,
+            key: GroupChatKey(vec![]),
+            is_ok: false,
+            is_over: false,
+            is_deleted: false,
+            id: 0,
+        }
+    }
+
+    pub fn new_by_me(
+        gid: GroupId,
+        addr: PeerAddr,
+        name: String,
+        remark: String,
+        key: GroupChatKey,
+    ) -> Self {
+        let start = SystemTime::now();
+        let datetime = start
+            .duration_since(UNIX_EPOCH)
+            .map(|s| s.as_secs())
+            .unwrap_or(0) as i64; // safe for all life.
+
+        Self {
+            gid,
+            addr,
+            name,
+            remark,
+            datetime,
+            key,
+            is_ok: false,
+            is_over: false,
+            is_deleted: false,
+            fid: 0,
+            rid: 0,
+            id: 0,
+        }
+    }
+
+    pub fn to_rpc(&self) -> RpcParam {
+        json!([
+            self.id,
+            self.fid,
+            self.rid,
+            self.gid.to_hex(),
+            self.addr.to_hex(),
+            self.name,
+            self.remark,
+            self.is_ok,
+            self.is_over,
+            self.datetime,
+        ])
+    }
+
+    fn from_values(mut v: Vec<DsValue>, contains_deleted: bool) -> Self {
+        let is_deleted = if contains_deleted {
+            v.pop().unwrap().as_bool()
+        } else {
+            false
+        };
+
+        Self {
+            is_deleted,
+            key: GroupChatKey(vec![]),
+            datetime: v.pop().unwrap().as_i64(),
+            is_over: v.pop().unwrap().as_bool(),
+            is_ok: v.pop().unwrap().as_bool(),
+            remark: v.pop().unwrap().as_string(),
+            name: v.pop().unwrap().as_string(),
+            addr: PeerAddr::from_hex(v.pop().unwrap().as_string()).unwrap_or(Default::default()),
+            gid: GroupId::from_hex(v.pop().unwrap().as_string()).unwrap_or(Default::default()),
+            rid: v.pop().unwrap().as_i64(),
+            fid: v.pop().unwrap().as_i64(),
+            id: v.pop().unwrap().as_i64(),
+        }
+    }
+
+    pub fn list(db: &DStorage, is_all: bool) -> Result<Vec<Request>> {
+        let sql = if is_all {
+            format!("SELECT id, fid, rid, gid, addr, name, remark, is_ok, is_over, datetime FROM requests WHERE is_deleted = false")
+        } else {
+            format!("SELECT id, fid, rid, gid, addr, name, remark, is_ok, is_over, datetime FROM requests WHERE is_deleted = false AND is_over = 0")
+        };
+        let matrix = db.query(&sql)?;
+        let mut requests = vec![];
+        for values in matrix {
+            requests.push(Request::from_values(values, false));
+        }
+        Ok(requests)
+    }
+
+    pub fn insert(&mut self, db: &DStorage) -> Result<()> {
+        let sql = format!("INSERT INTO requests (fid, rid, gid, addr, name, remark, key, is_ok, is_over, datetime, is_deleted) VALUES ({}, {}, '{}', '{}', '{}', '{}', '{}', {}, {}, {}, false)",
+            self.fid,
+            self.rid,
+            self.gid.to_hex(),
+            self.addr.to_hex(),
+            self.name,
+            self.remark,
+            self.key.to_hex(),
+            self.is_ok,
+            self.is_over,
+            self.datetime,
+        );
+        let id = db.insert(&sql)?;
+        self.id = id;
+        Ok(())
+    }
+
+    pub fn exist(db: &DStorage, gcd: &GroupId) -> Result<bool> {
+        let matrix = db.query(&format!(
+            "SELECT id from requests WHERE gid = '{}' AND is_over = 0",
+            gcd.to_hex(),
+        ))?;
+        if matrix.len() == 0 {
+            Ok(false)
+        } else {
+            Ok(true)
+        }
+    }
+
+    pub fn over_rid(db: &DStorage, gcd: &GroupId, rid: &i64, is_ok: bool) -> Result<i64> {
+        let mut matrix = db.query(&format!(
+            "SELECT id from requests WHERE gid = '{}' AND rid = {} AND is_over = 0",
+            gcd.to_hex(),
+            rid
+        ))?;
+        if matrix.len() == 0 {
+            return Err(anyhow!("request is missing"));
+        }
+        let id = matrix.pop().unwrap().pop().unwrap().as_i64(); // safe.
+        let sql = format!(
+            "UPDATE requests SET is_ok={}, is_over=1 WHERE id = {}",
+            is_ok, id,
+        );
+        db.update(&sql)?;
+        Ok(id)
+    }
+
+    pub fn over(db: &DStorage, gcd: &GroupId, is_ok: bool) -> Result<(i64, GroupChatKey)> {
+        let matrix = db.query(&format!(
+            "SELECT id, key from requests WHERE gid = '{}' AND is_over = 0 ORDER BY id",
+            gcd.to_hex()
+        ))?;
+        let mut requests = vec![];
+        for mut values in matrix {
+            let id = values.pop().unwrap().as_i64();
+            let key = GroupChatKey::from_hex(values.pop().unwrap().as_string())
+                .unwrap_or(GroupChatKey::new(vec![]));
+            requests.push((id, key));
+        }
+
+        let sql = format!(
+            "UPDATE requests SET is_ok={}, is_over=1 WHERE gid = '{}' AND is_over = 0",
+            is_ok,
+            gcd.to_hex(),
+        );
+        db.update(&sql)?;
+
+        if requests.len() > 0 {
+            Ok(requests.pop().unwrap()) // safe.
+        } else {
+            Err(anyhow!("no requests"))
+        }
+    }
+}
--- a/src/migrate/group_chat.rs
+++ b/src/migrate/group_chat.rs
@ -1,5 +1,5 @@
				@@ -1,5 +1,5 @@
 #[rustfmt::skip]
-pub(super) const GROUP_CHAT_VERSIONS: [&str; 4] = [
+pub(super) const GROUP_CHAT_VERSIONS: [&str; 5] = [
  "CREATE TABLE IF NOT EXISTS groups(
    id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
    height INTEGER NOT NULL,
@ -50,4 +50,10 @@ pub(super) const GROUP_CHAT_VERSIONS: [&str; 4] = [
				@@ -50,4 +50,10 @@ pub(super) const GROUP_CHAT_VERSIONS: [&str; 4] = [
    is_delivery INTEGER NOT NULL,
    datetime INTEGER NOT NULL,
    is_deleted INTEGER NOT NULL);",
+ "CREATE TABLE IF NOT EXISTS consensus(
+    id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
+    fid INTEGER NOT NULL,
+    height INTEGER NOT NULL,
+    ctype INTEGER NOT NULL,
+    cid INTEGER NOT NULL);",
 ];