Continue refactoring

src/api_data/account_export_api.rs

@@ -53,7 +53,7 @@ impl AccountExportAPI {
             conversations_list: ConversationAPI::for_list(&export.conversations),
             conversations_messages: export.conversation_messages
                 .iter()
-                .map(|r| (r.0.clone(), ConversationMessageAPI::for_list(r.1)))
+                .map(|r| (r.0.id(), ConversationMessageAPI::for_list(r.1)))
                 .collect(),
             friends_list: FriendAPI::from_list(&export.friends_list),
             groups: export.groups

src/api_data/call_peer_interrupted_streaming.rs

@@ -17,7 +17,7 @@ pub struct CallPeerInterruptedStreamingAPI {
 impl CallPeerInterruptedStreamingAPI {
     pub fn new(call_id: &ConvID, peer_id: &UserID) -> Self {
         Self {
-            callID: call_id.clone(),
+            callID: call_id.id(),
             peerID: peer_id.id(),
         }
     }

src/api_data/call_peer_ready.rs

@@ -16,7 +16,7 @@ pub struct CallPeerReadyAPI {
 impl CallPeerReadyAPI {
     pub fn new(call_id: &ConvID, user_id: &UserID) -> Self {
         Self {
-            callID: call_id.clone(),
+            callID: call_id.id(),
             peerID: user_id.id(),
         }
     }

src/api_data/conversation_api.rs

@@ -1,54 +1,58 @@
 //! # Conversation API object
 //!
 //! @author Pierre Hubert
-use serde::{Serialize, Serializer};
+use serde::Serialize;
 
-use crate::api_data::legacy_api_bool::LegacyBool;
 use crate::controllers::calls_controller;
-use crate::data::conversation::Conversation;
+use crate::data::conversation::{Conversation, ConversationMember};
 use crate::helpers::calls_helper;
 
-/// Special implementation of conversation name (false if none / the name otherwise)
+#[derive(Serialize)]
-struct ConvName(Option<String>);
+struct ConversationMembersAPI {
-
+    user_id: u64,
-impl Serialize for ConvName {
+    last_message_seen: u64,
-    fn serialize<S>(&self, serializer: S) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
+    following: bool,
-        S: Serializer {
+    is_admin: bool,
-        match &self.0 {
-            None => serializer.serialize_bool(false),
-            Some(n) => serializer.serialize_str(n)
-        }
-    }
 }
 
 #[derive(Serialize)]
-#[allow(non_snake_case)]
 pub struct ConversationAPI {
-    ID: u64,
+    id: u64,
-    ID_owner: u64,
+    last_activity: u64,
-    last_active: u64,
+    name: Option<String>,
-    name: ConvName,
+    color: Option<String>,
-    following: LegacyBool,
+    background: Option<String>,
-    saw_last_message: LegacyBool,
+    group_id: Option<u64>,
-    members: Vec<u64>,
+    members: Vec<ConversationMembersAPI>,
-    canEveryoneAddMembers: bool,
+    can_everyone_add_members: bool,
     can_have_call: bool,
     can_have_video_call: bool,
     has_call_now: bool,
 }
 
+impl ConversationMembersAPI {
+    pub fn new(m: &ConversationMember) -> Self {
+        Self {
+            user_id: m.user_id.id(),
+            last_message_seen: m.last_message_seen,
+            following: m.following,
+            is_admin: m.is_admin,
+        }
+    }
+}
+
 impl ConversationAPI {
     /// Construct a new Conversation instance
     pub fn new(conv: &Conversation) -> ConversationAPI {
         ConversationAPI {
-            ID: conv.id,
+            id: conv.id.id(),
-            ID_owner: conv.owner_id.id(),
+            last_activity: conv.last_activity,
-            last_active: conv.last_active,
+            name: conv.name.clone(),
-            name: ConvName(conv.name.clone()),
+            members: conv.members.iter().map(ConversationMembersAPI::new).collect(),
-            following: LegacyBool(conv.following),
+            can_everyone_add_members: conv.can_everyone_add_members,
-            saw_last_message: LegacyBool(conv.saw_last_message),
+            color: conv.color.clone(),
-            members: conv.members.iter().map(|x| x.id()).collect(),
+            background: conv.background.clone(),
-            canEveryoneAddMembers: conv.can_everyone_add_members,
+            group_id: conv.group_id.as_ref().map(|i| i.id()),
 
             can_have_call: calls_helper::can_have_call(conv),
             can_have_video_call: calls_helper::can_have_video_calls(conv),

src/api_data/conversation_message_api.rs

@@ -79,7 +79,7 @@ impl ConversationMessageAPI {
 
         ConversationMessageAPI {
             id: msg.id,
-            conv_id: msg.conv_id,
+            conv_id: msg.conv_id.id(),
             user_id: msg.user_id.clone().map(|u| u.id()),
             time_insert: msg.time_sent,
             message: msg.message.clone(),

src/api_data/conversations_refresh_api.rs

@@ -1,37 +0,0 @@
-//! # Conversation refresh result
-//!
-//! Note : this structure is now deprecated and should no longer be used for further developments
-//!
-//! @author Pierre Hubert
-
-use std::collections::HashMap;
-
-use serde::Serialize;
-
-use crate::api_data::conversation_message_api::ConversationMessageAPI;
-use crate::data::conversation_message::ConversationMessage;
-
-#[derive(Serialize)]
-#[allow(non_snake_case)]
-pub struct ConversationRefreshResultAPI {
-    #[serde(flatten)]
-    list: HashMap<String, Vec<ConversationMessageAPI>>,
-}
-
-impl ConversationRefreshResultAPI {
-    /// Create a new list
-    pub fn new(list: HashMap<u64, Vec<ConversationMessage>>) -> ConversationRefreshResultAPI {
-        let list = list
-            .iter()
-            .map(|v| (
-                format!("conversation-{}", v.0),
-                ConversationMessageAPI::for_list(v.1)
-            ))
-            .collect();
-
-        ConversationRefreshResultAPI {
-            list
-        }
-    }
-}
-

src/api_data/joined_call_message.rs

@@ -18,7 +18,7 @@ pub struct JoinedCallMessage {
 impl JoinedCallMessage {
     pub fn new(call_id: &ConvID, user_id: &UserID) -> Self {
         Self {
-            callID: call_id.clone(),
+            callID: call_id.id(),
             userID: user_id.id(),
         }
     }

src/api_data/left_call_message.rs

@@ -18,7 +18,7 @@ pub struct LeftCallMessage {
 impl LeftCallMessage {
     pub fn new(call_id: &ConvID, user_id: &UserID) -> Self {
         Self {
-            callID: call_id.clone(),
+            callID: call_id.id(),
             userID: user_id.id(),
         }
     }

src/api_data/mod.rs

@@ -21,7 +21,6 @@ pub mod conversation_api;
 mod legacy_api_bool;
 pub mod res_find_private_conversations;
 pub mod conversation_message_api;
-pub mod conversations_refresh_api;
 pub mod res_count_unread_conversations;
 pub mod list_unread_conversations_api;
 pub mod global_search_result_api;

src/api_data/new_call_signal.rs

@@ -19,7 +19,7 @@ pub struct NewCallSignalAPI {
 impl NewCallSignalAPI {
     pub fn new(call_id: &ConvID, peer_id: &UserID, data: &str) -> Res<Self> {
         Ok(Self {
-            callID: call_id.clone(),
+            callID: call_id.id(),
             peerID: peer_id.id(),
             data: serde_json::from_str(data)?,
         })

src/api_data/res_create_conversation.rs

@@ -3,6 +3,7 @@
 //! @author Pierre Hubert
 
 use serde::{Serialize};
+use crate::data::conversation::ConvID;
 
 #[derive(Serialize)]
 #[allow(non_snake_case)]
@@ -13,9 +14,9 @@ pub struct ResCreateConversation {
 
 impl ResCreateConversation {
     /// Construct a new Result instance
-    pub fn new(conv_id: u64) -> ResCreateConversation {
+    pub fn new(conv_id: ConvID) -> ResCreateConversation {
         ResCreateConversation {
-            conversationID: conv_id,
+            conversationID: conv_id.id(),
             success: "The conversation was successfully created!".to_string(),
         }
     }

src/api_data/res_find_private_conversations.rs

@@ -4,6 +4,8 @@
 
 use serde::Serialize;
 
+use crate::data::conversation::ConvID;
+
 #[derive(Serialize)]
 #[allow(non_snake_case)]
 pub struct ResFindPrivateConversations {
@@ -12,9 +14,9 @@ pub struct ResFindPrivateConversations {
 
 impl ResFindPrivateConversations {
     /// Construct a new instance of this structure
-    pub fn new(list: Vec<u64>) -> ResFindPrivateConversations {
+    pub fn new(list: Vec<ConvID>) -> ResFindPrivateConversations {
         ResFindPrivateConversations {
-            conversationsID: list
+            conversationsID: list.iter().map(|i| i.id()).collect()
         }
     }
 }

src/constants.rs

@@ -36,7 +36,6 @@ pub mod database_tables_names {
     pub const CONV_LIST_TABLE: &str = "comunic_conversations_list";
     pub const CONV_MEMBERS_TABLE: &str = "comunic_conversations_members";
     pub const CONV_MESSAGES_TABLE: &str = "comunic_conversations_messages";
-    pub const CONV_INFO_VIEW: &str = "comunic_conversations_info";
 
     /// Posts table
     pub const POSTS_TABLE: &str = "texte";
@@ -164,3 +163,6 @@ pub const CLEAN_UP_INTERVAL: Duration = Duration::from_secs(60 * 60);
 
 /// Minimal mobile version supported
 pub const MIN_SUPPORTED_MOBILE_VERSION: &str = "1.1.1";
+
+/// Minimum message length
+pub const MIN_CONVERSATION_MESSAGE_LENGTH: usize = 1;

src/controllers/calls_controller.rs

@@ -13,7 +13,6 @@ use crate::api_data::joined_call_message::JoinedCallMessage;
 use crate::api_data::left_call_message::LeftCallMessage;
 use crate::api_data::new_call_signal::NewCallSignalAPI;
 use crate::api_data::user_calls_config::UserCallsConfig;
-use crate::routes::RequestResult;
 use crate::controllers::user_ws_controller;
 use crate::data::base_request_handler::BaseRequestHandler;
 use crate::data::call_signal::{CallSignal, CloseCallStream, IceCandidate, NewUserCallSignal, SdpType, UserCallOfferRequest};
@@ -27,11 +26,12 @@ use crate::data::user_ws_message::UserWsMessage;
 use crate::data::user_ws_request_handler::UserWsRequestHandler;
 use crate::helpers::{calls_helper, conversations_helper, events_helper};
 use crate::helpers::events_helper::Event;
+use crate::routes::RequestResult;
 
 impl UserWsRequestHandler {
     /// Get the ID of a call included in a WebSocket request
     fn post_call_id(&mut self, name: &str) -> Res<ConvID> {
-        let conv_id = self.post_u64(name)?;
+        let conv_id = ConvID::new(self.post_u64(name)?);
 
         if !self.get_conn().is_having_call_with_conversation(&conv_id) {
             self.forbidden("You do not belong to this call!".to_string())?;
@@ -125,7 +125,7 @@ pub fn is_conversation_having_call(conv_id: &ConvID) -> bool {
     });
 
     if let Err(e) = res {
-        eprintln!("Failed to check if a conversation is having call! Conversation: {} / Error: {:#?}", conv_id, e);
+        eprintln!("Failed to check if a conversation is having call! Conversation: {} / Error: {:#?}", conv_id.id(), e);
     }
 
     found
@@ -133,10 +133,10 @@ pub fn is_conversation_having_call(conv_id: &ConvID) -> bool {
 
 /// Join a call
 pub fn join_call(r: &mut UserWsRequestHandler) -> RequestResult {
-    let conv_id = r.post_conv_id("convID")?;
+    let conv_id = r.post_conv("convID")?.conv_id;
 
     // Check if the conversation can have a call
-    let conv = conversations_helper::get_single(conv_id, r.user_id_ref()?)?;
+    let conv = conversations_helper::get_single(conv_id)?;
     if !calls_helper::can_have_call(&conv) {
         r.forbidden("This conversation can not be used to make calls!".to_string())?;
     }
@@ -177,7 +177,7 @@ pub fn leave_call(r: &mut UserWsRequestHandler) -> RequestResult {
     // Warning ! For some technical reasons, we do not check if the user
     // really belongs to the conversation, so be careful when manipulating
     // conversation ID here
-    let conv_id = r.post_u64("convID")?;
+    let conv_id = ConvID::new(r.post_u64("convID")?);
 
     // Check if the user was not in the conversation
     if !r.get_conn().is_having_call_with_conversation(&conv_id) {
@@ -208,7 +208,7 @@ pub fn get_members_list(r: &mut UserWsRequestHandler) -> RequestResult {
 
 /// Get the hash associated to a call
 pub fn gen_call_hash(call_id: &ConvID, peer_id: &UserID) -> String {
-    format!("{}-{}", call_id, peer_id.id())
+    format!("{}-{}", call_id.id(), peer_id.id())
 }
 
 /// Handles client signal
@@ -357,7 +357,7 @@ pub fn make_user_leave_call(conv_id: &ConvID, connection: &UserWsConnection) ->
 
     // Notify user (if possible)
     if connection.session.connected() {
-        user_ws_controller::send_to_client(connection, &UserWsMessage::no_id_message("call_closed", conv_id)?)?;
+        user_ws_controller::send_to_client(connection, &UserWsMessage::no_id_message("call_closed", conv_id.id())?)?;
     }
 
     // Close main stream (sender)
@@ -418,7 +418,7 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
                 return Ok(());
             }
 
-            let call_id = split[0].parse::<u64>()?;
+            let call_id = ConvID::new(split[0].parse::<u64>()?);
             let peer_id = UserID::new(split[1].parse::<u64>()?);
 
             let target_user = UserID::new(msg.peer_id.parse::<u64>()?);

src/controllers/conversations_controller.rs

@@ -2,18 +2,18 @@
 //!
 //! @author Pierre Hubert
 
-use std::collections::HashMap;
 
 use crate::api_data::conversation_api::ConversationAPI;
 use crate::api_data::conversation_message_api::ConversationMessageAPI;
-use crate::api_data::conversations_refresh_api::ConversationRefreshResultAPI;
 use crate::api_data::list_unread_conversations_api::UnreadConversationAPI;
 use crate::api_data::res_count_unread_conversations::ResultCountUnreadConversations;
 use crate::api_data::res_create_conversation::ResCreateConversation;
 use crate::api_data::res_find_private_conversations::ResFindPrivateConversations;
-use crate::routes::RequestResult;
+use crate::constants::MIN_CONVERSATION_MESSAGE_LENGTH;
 use crate::controllers::user_ws_controller;
 use crate::data::base_request_handler::BaseRequestHandler;
+use crate::data::conversation::{ConversationMemberSetting, NewConversationSettings};
+use crate::data::conversation_message::ConversationMessageFile;
 use crate::data::error::Res;
 use crate::data::http_request_handler::HttpRequestHandler;
 use crate::data::new_conversation::NewConversation;
@@ -23,6 +23,7 @@ use crate::data::user_ws_connection::UserWsConnection;
 use crate::data::user_ws_message::UserWsMessage;
 use crate::helpers::{conversations_helper, events_helper, user_helper};
 use crate::helpers::events_helper::Event;
+use crate::routes::RequestResult;
 use crate::utils::string_utils::remove_html_nodes;
 
 /// Create a new conversation
@@ -58,6 +59,9 @@ pub fn create(r: &mut HttpRequestHandler) -> RequestResult {
         owner_following: r.post_bool("follow")?,
         members,
         can_everyone_add_members: r.post_bool_opt("canEveryoneAddMembers", true),
+        color: r.post_color_opt("color")?,
+        group_id: None,
+        background: None,// TODO : add support for background
     };
 
     // Create the conversation
@@ -74,77 +78,94 @@ pub fn get_list(r: &mut HttpRequestHandler) -> RequestResult {
 
 /// Get information about a single conversation
 pub fn get_single(r: &mut HttpRequestHandler) -> RequestResult {
-    let conversation_id = r.post_conv_id("conversationID")?;
+    let conv = r.post_conv("conversationID")?;
-    let conv = conversations_helper::get_single(conversation_id, &r.user_id()?)?;
+    let conv = conversations_helper::get_single(conv.conv_id)?;
 
     r.set_response(ConversationAPI::new(&conv))
 }
 
 /// Update the settings of a conversation
 pub fn update_settings(r: &mut HttpRequestHandler) -> RequestResult {
-    let conv_id = r.post_conv_id("conversationID")?;
+    let conv_membership = r.post_conv("conversationID")?;
-    let is_moderator = conversations_helper::is_user_moderator(&r.user_id()?, conv_id)?;
+    let conv = conversations_helper::get_single(conv_membership.conv_id)?;
 
     // Update following state, if required
     if r.has_post_parameter("following") {
         conversations_helper::set_following(
             &r.user_id()?,
-            conv_id,
+            conv_membership.member_id,
             r.post_bool("following")?,
         )?;
     }
 
     // Update members list
-    if r.has_post_parameter("members") {
+    if r.has_post_parameter("members") && !conv.is_managed() {
-        let mut members = r.post_numbers_list("members", 1)?
+        let mut members = r.post_users_id("members")?
-            .iter()
+            .into_iter()
-            .map(|f| UserID::new(f.clone()))
+            .map(|user_id| ConversationMemberSetting { user_id, set_admin: false })
-            .collect::<Vec<UserID>>();
+            .collect::<Vec<ConversationMemberSetting>>();
+        let admins = r.post_users_id("admins")?;
 
-        let can_everyone_add_members = conversations_helper::can_everyone_add_members(conv_id)?;
+        let can_everyone_add_members = conversations_helper::can_everyone_add_members(conv_membership.conv_id)?;
 
-        if !is_moderator && !can_everyone_add_members {
+        if !conv_membership.is_admin && !can_everyone_add_members {
             r.forbidden("You can not update the list of members of this conversation!".to_string())?;
         }
 
-        // Check if the members of the conversation really exists
+        // Set same admin status as earlier
-        for member in &members {
+        if !conv_membership.is_admin {
-            if !user_helper::exists(member)? {
+            members = members
-                r.not_found(format!("User {} not found!", member.id()))?;
+                .into_iter()
-            }
+                .map(|mut n| {
+                    n.set_admin = conv.is_admin(&n.user_id);
+                    n
+                })
+                .collect()
         }
 
-        if !members.contains(&r.user_id()?) {
+        // If the user is an admin, use the values he gave
-            members.push(r.user_id()?);
+        else {
+            members = members
+                .into_iter()
+                .map(|mut n| {
+                    n.set_admin = admins.contains(&n.user_id);
+                    n
+                })
+                .collect()
         }
 
-        conversations_helper::set_members(conv_id, &members, is_moderator)?;
+        // Current user can not touch his own membership, so revert it back forcefully
+        members = members
+            .into_iter()
+            .filter(|m| !m.user_id.eq(&conv_membership.user_id))
+            .collect::<Vec<ConversationMemberSetting>>();
+
+        members.push(ConversationMemberSetting {
+            user_id: r.user_id()?,
+            set_admin: conv_membership.is_admin,
+        });
+
+
+        conversations_helper::set_members(conv_membership.conv_id, &members, conv_membership.is_admin)?;
     }
 
     // Change moderator settings
-    if r.has_post_parameter("name") || r.has_post_parameter("canEveryoneAddMembers") {
+    if r.has_post_parameter("name")
-        if !is_moderator {
+        && r.has_post_parameter("canEveryoneAddMembers")
+        && r.has_post_parameter("color") {
+        if !conv_membership.is_admin {
             r.forbidden("You are not allowed to perform changes on this conversation!".to_string())?;
         }
 
-        // Change conversation name
-        if r.has_post_parameter("name") {
-            let name = r.post_string_opt("name", 0, true)?;
-            let name = if name.eq("false") || name.is_empty() {
-                None
-            } else {
-                Some(remove_html_nodes(&name))
-            };
 
-            conversations_helper::set_name(conv_id, name)?;
+        let new_settings = NewConversationSettings {
-        }
+            conv_id: conv_membership.conv_id,
+            name: r.post_string_optional("name").map(|s| remove_html_nodes(&s)),
+            color: r.post_color_opt("color")?,
+            can_everyone_add_members: r.post_bool("canEveryoneAddMembers")?,
+        };
 
-
+        conversations_helper::set_settings(new_settings)?;
-        // Change "canEveryoneAddMembers" parameter
-        if r.has_post_parameter("canEveryoneAddMembers") {
-            conversations_helper::set_can_everyone_add_members(
-                conv_id, r.post_bool("canEveryoneAddMembers")?)?;
-        }
     }
 
     r.success("Conversation information successfully updated!")
@@ -169,6 +190,9 @@ pub fn find_private(r: &mut HttpRequestHandler) -> RequestResult {
             owner_following: true,
             members: vec![r.user_id()?, other_user],
             can_everyone_add_members: true,
+            color: r.post_color_opt("color")?,
+            background: None,
+            group_id: None,
         };
         let conv_id = conversations_helper::create(&new_conv)?;
         list.push(conv_id);
@@ -177,80 +201,25 @@ pub fn find_private(r: &mut HttpRequestHandler) -> RequestResult {
     r.set_response(ResFindPrivateConversations::new(list))
 }
 
-/// DEPRECATED : refresh current user conversations
-///
-/// This method was used only by ComunicWeb before the introduction of WebSockets
-pub fn refresh_list(r: &mut HttpRequestHandler) -> RequestResult {
-    let mut list = HashMap::new();
-
-    // Check for new conversations
-    if r.has_post_parameter("newConversations") {
-        for conv_id in r.post_numbers_list("newConversations", 0)? {
-            if !conversations_helper::does_user_belongs_to(&r.user_id()?, conv_id)? {
-                r.forbidden(format!("Your do not belongs to conversation {} !", conv_id))?;
-            }
-
-            let list_conv = conversations_helper::get_last_messages(conv_id, 10)?;
-            list.insert(conv_id as u64, list_conv);
-
-            conversations_helper::mark_user_seen(conv_id as u64, &r.user_id()?)?;
-        }
-    }
-
-    // Check for refresh of already initialized conversations
-    if r.has_post_parameter("toRefresh") {
-        let v: HashMap<String, HashMap<String, serde_json::Value>> =
-            serde_json::from_str(r.post_string("toRefresh")?.as_str())?;
-
-        for (k, v) in v {
-            // Get conversation ID
-            if !k.starts_with("conversation-") {
-                return r.bad_request("Entries of 'toRefresh' must start with 'conversation-'!".to_string());
-            }
-            let conv_id = k.replace("conversation-", "").parse::<u64>()?;
-
-            // Extract last message id
-            if !v.contains_key("last_message_id") {
-                return r.bad_request(format!("Missing 'last_message_id' in conversation {}!", conv_id));
-            }
-            let last_message_id = v["last_message_id"].as_u64().unwrap_or(0);
-
-            // Check user rights
-            if !conversations_helper::does_user_belongs_to(&r.user_id()?, conv_id)? {
-                return r.forbidden(format!("You do not belong to conversation {}!", conv_id));
-            }
-
-            let list_conv = conversations_helper::get_new_messages(conv_id, last_message_id)?;
-            list.insert(conv_id, list_conv);
-
-            conversations_helper::mark_user_seen(conv_id as u64, &r.user_id()?)?;
-        }
-    }
-
-    r.set_response(ConversationRefreshResultAPI::new(list))
-}
-
 /// Refresh a single conversation
 pub fn refresh_single(r: &mut HttpRequestHandler) -> RequestResult {
-    let conv_id = r.post_conv_id("conversationID")?;
+    let conv = r.post_conv("conversationID")?;
     let last_message_id = r.post_u64("last_message_id")?;
 
     let messages = match last_message_id {
         // Get latest messages of the conversation
-        0 => conversations_helper::get_last_messages(conv_id, 10)?,
+        0 => conversations_helper::get_last_messages(conv.member_id, 10)?,
 
         // Get new messages
-        _ => conversations_helper::get_new_messages(conv_id, last_message_id)?,
+        _ => conversations_helper::get_new_messages(conv.member_id, last_message_id)?,
     };
 
-    conversations_helper::mark_user_seen(conv_id, &r.user_id()?)?;
-
     r.set_response(ConversationMessageAPI::for_list(&messages))
 }
 
 /// Get older messages of a conversation
 pub fn get_older_messages(r: &mut HttpRequestHandler) -> RequestResult {
-    let conv_id = r.post_conv_id("conversationID")?;
+    let conv = r.post_conv("conversationID")?;
     let max_id = r.post_u64("oldest_message_id")? - 1;
 
     // Determine limit
@@ -261,31 +230,44 @@ pub fn get_older_messages(r: &mut HttpRequestHandler) -> RequestResult {
         _ => 60
     };
 
-    let messages = conversations_helper::get_older_messages(conv_id, max_id, limit)?;
+    let messages = conversations_helper::get_older_messages(conv.member_id, max_id, limit)?;
 
     r.set_response(ConversationMessageAPI::for_list(&messages))
 }
 
 /// Send a new message
 pub fn send_message(r: &mut HttpRequestHandler) -> RequestResult {
-    let conv_id = r.post_conv_id("conversationID")?;
+    let conv = r.post_conv("conversationID")?;
-    let message = r.post_string_without_html("message", 0, false)?;
+
+    // TODO : add support for other files type
 
     // Get image
-    let image_path = match r.has_file("image") {
+    let file = match r.has_file("image") {
         false => None,
-        true => Some(r.save_post_image("image", "conversations", 1200, 1200)?)
+        true => {
+            let path = r.save_post_image("image", "conversations", 1200, 1200)?;
+            Some(ConversationMessageFile {
+                path: path.clone(),
+                size: std::fs::metadata(&path)?.len(),
+                name: "picture.png".to_string(),
+                thumbnail: Some(r.save_post_image("image", "conversations", 50, 50)?),
+                r#type: "image/png".to_string(),
+            })
+        }
     };
 
-    if image_path == None && message.len() < 3 {
+    let message = if let None = file {
-        r.bad_request("Message is empty!".to_string())?;
+        Some(r.post_string_without_html("message", MIN_CONVERSATION_MESSAGE_LENGTH, true)?)
-    }
+    } else {
+        None
+    };
 
     conversations_helper::send_message(&NewConversationMessage {
-        user_id: r.user_id()?,
+        user_id: Some(r.user_id()?),
-        conv_id,
+        conv_id: conv.conv_id,
         message,
-        image_path,
+        file,
+        server_message: None,
     })?;
 
     r.success("Conversation message was successfully sent!")
@@ -307,9 +289,14 @@ pub fn list_unread(r: &mut HttpRequestHandler) -> RequestResult {
 
 /// Delete a conversation
 pub fn delete_conversation(r: &mut HttpRequestHandler) -> RequestResult {
-    let conv_id = r.post_conv_id("conversationID")?;
+    let conv_membership = r.post_conv("conversationID")?;
+    let conv = conversations_helper::get_single(conv_membership.conv_id)?;
 
-    conversations_helper::remove_user_from_conversation(&r.user_id()?, conv_id)?;
+    if conv.is_managed() {
+        r.bad_request("This conversation is managed, it can not be deleted by this way!".to_string())?;
+    }
+
+    conversations_helper::remove_user_from_conversation(&r.user_id()?, &conv, r.user_id_ref()?)?;
 
     r.success("The conversation has been deleted")
 }
@@ -362,7 +349,7 @@ pub fn handle_event(e: &events_helper::Event) -> Res {
             user_ws_controller::send_message_to_specific_connections(
                 |f| f.conversations.contains(&msg.conv_id),
                 |_| UserWsMessage::no_id_message("new_conv_message", ConversationMessageAPI::new(msg)),
-                Some(|conn: &UserWsConnection| conversations_helper::mark_user_seen(msg.conv_id, conn.user_id())),
+                Some(|conn: &UserWsConnection| conversations_helper::mark_user_seen(msg.conv_id, conn.user_id(), msg.id)),
             )?;
         }
 

src/controllers/user_ws_actions.rs

@@ -6,6 +6,7 @@ use crate::data::base_request_handler::BaseRequestHandler;
 use crate::data::error::Res;
 use crate::data::post::PostAccessLevel;
 use crate::data::user_ws_request_handler::UserWsRequestHandler;
+use crate::data::conversation::ConvID;
 
 /// Update incognito status of the connection
 pub fn set_incognito(r: &mut UserWsRequestHandler) -> Res {
@@ -17,14 +18,14 @@ pub fn set_incognito(r: &mut UserWsRequestHandler) -> Res {
 
 /// Register a conversation
 pub fn register_conv(r: &mut UserWsRequestHandler) -> Res {
-    let conv_id = r.post_conv_id("convID")?;
+    let conv_id = r.post_conv("convID")?.conv_id;
     r.update_conn(|c| { c.conversations.insert(conv_id); })?;
     r.success("ok")
 }
 
 /// Un-register a conversation
 pub fn unregister_conv(r: &mut UserWsRequestHandler) -> Res {
-    let conv_id = r.post_u64("convID")?;
+    let conv_id = ConvID::new(r.post_u64("convID")?);
     r.update_conn(|c| { c.conversations.remove(&conv_id); })?;
     r.success("ok")
 }

src/data/account_export.rs

@@ -5,7 +5,7 @@
 use std::collections::{HashMap, HashSet};
 
 use crate::data::comment::Comment;
-use crate::data::conversation::Conversation;
+use crate::data::conversation::{Conversation, ConvID};
 use crate::data::conversation_message::ConversationMessage;
 use crate::data::error::ResultBoxError;
 use crate::data::friend::Friend;
@@ -24,7 +24,7 @@ pub struct AccountExport {
     pub survey_responses: Vec<SurveyResponse>,
     pub all_conversation_messages: Vec<ConversationMessage>,
     pub conversations: Vec<Conversation>,
-    pub conversation_messages: HashMap<u64, Vec<ConversationMessage>>,
+    pub conversation_messages: HashMap<ConvID, Vec<ConversationMessage>>,
     pub friends_list: Vec<Friend>,
     pub groups: Vec<GroupID>,
 }
@@ -56,7 +56,7 @@ impl AccountExport {
 
         // Conversation members
         for conv in &self.conversations {
-            conv.members.iter().for_each(|f| { set.insert(f.clone()); });
+            conv.members_ids().into_iter().for_each(|f| { set.insert(f); });
         }
 
         // Conversation messages

src/data/base_request_handler.rs

@@ -12,7 +12,7 @@ use serde::Serialize;
 use crate::api_data::http_error::HttpError;
 use crate::constants::PASSWORD_MIN_LENGTH;
 use crate::data::comment::Comment;
-use crate::data::conversation::ConvID;
+use crate::data::conversation::{ConversationMember, ConvID};
 use crate::data::custom_emoji::CustomEmoji;
 use crate::data::error::{ExecError, Res, ResultBoxError};
 use crate::data::group::GroupAccessLevel;
@@ -24,9 +24,10 @@ use crate::helpers::{account_helper, comments_helper, conversations_helper, cust
 use crate::helpers::virtual_directory_helper::VirtualDirType;
 use crate::routes::RequestResult;
 use crate::utils::pdf_utils::is_valid_pdf;
-use crate::utils::string_utils::{check_emoji_code, check_string_before_insert, check_url, remove_html_nodes};
+use crate::utils::string_utils::{check_emoji_code, check_string_before_insert, check_url, remove_html_nodes, check_html_color};
 use crate::utils::user_data_utils::{generate_new_user_data_file_name, prepare_file_creation, user_data_path};
 use crate::utils::virtual_directories_utils;
+use std::collections::HashSet;
 
 #[derive(Serialize)]
 struct SuccessMessage {
@@ -239,6 +240,18 @@ pub trait BaseRequestHandler {
         }
     }
 
+    /// Get a string included in the request. If none found, or if string is empty, returns [None]
+    fn post_string_optional(&mut self, name: &str) -> Option<String> {
+        match self.post_parameter_opt(name) {
+            Some(RequestValue::String(s)) => {
+                if s.is_empty() {
+                    None
+                } else { Some(s.to_string()) }
+            }
+            _ => None
+        }
+    }
+
     /// Check out whether a file was included in the request or not
     fn has_file(&self, name: &str) -> bool {
         self.post_parameter_opt(name)
@@ -420,6 +433,22 @@ pub trait BaseRequestHandler {
         Ok(user_id)
     }
 
+    /// Get a list of users ID included in the request
+    fn post_users_id(&mut self, name: &str) -> ResultBoxError<HashSet<UserID>> {
+        let users = self.post_numbers_list(name, 1)?
+            .iter()
+            .map(|u| UserID::new(u.clone()))
+            .collect::<HashSet<UserID>>();
+
+        for user in &users {
+            if !user_helper::exists(user)? {
+                self.not_found(format!("User {} not found!", user.id()))?;
+            }
+        }
+
+        Ok(users)
+    }
+
     /// Get the ID of a friend included in a POST request
     ///
     /// *Note :* This function does not check whether the user exists or not before checking if the
@@ -461,14 +490,14 @@ pub trait BaseRequestHandler {
     }
 
     /// Get & return the ID of the conversation included in the POST request
-    fn post_conv_id(&mut self, name: &str) -> ResultBoxError<ConvID> {
+    fn post_conv(&mut self, name: &str) -> ResultBoxError<ConversationMember> {
-        let conv_id = self.post_u64(name)?;
+        let conv_id = ConvID::new(self.post_u64(name)?);
+        let membership = self.ok_or_forbidden(
+            conversations_helper::get_user_membership(&self.user_id()?, conv_id),
+            &format!("You do not belong to conversation {} !", conv_id.id()),
+        )?;
 
-        if !conversations_helper::does_user_belongs_to(&self.user_id()?, conv_id)? {
+        Ok(membership)
-            self.forbidden(format!("You do not belong to conversation {} !", conv_id))?;
-        }
-
-        Ok(conv_id)
     }
 
     /// Get the ID
@@ -624,4 +653,20 @@ pub trait BaseRequestHandler {
 
         Ok(info)
     }
+
+    /// Get a color included in the request
+    fn post_color_opt(&mut self, field: &str) -> Res<Option<String>> {
+        let color = self.post_string_optional(field);
+
+        match color {
+            None => Ok(None),
+            Some(color) => {
+                if !check_html_color(&color) {
+                    self.bad_request(format!("Invalid color specified in '{}' !", field))?;
+                }
+
+                Ok(Some(color))
+            }
+        }
+    }
 }

src/data/conversation.rs

@@ -2,20 +2,94 @@
 //!
 //! @author Pierre Hubert
 
+use crate::data::group_id::GroupID;
 use crate::data::user::UserID;
 
-pub type ConvID = u64;
+#[derive(Copy, Debug, PartialEq, Eq, Clone, Hash)]
+pub struct ConvID(u64);
 
-#[derive(Debug, PartialEq, Eq)]
+impl ConvID {
+    pub fn new(id: u64) -> Self {
+        ConvID(id)
+    }
+
+    pub fn id(&self) -> u64 {
+        self.0.clone()
+    }
+}
+
+#[derive(Debug)]
+pub struct ConversationMember {
+    pub member_id: u64,
+    pub conv_id: ConvID,
+    pub user_id: UserID,
+    pub added_on: u64,
+    pub following: bool,
+    pub is_admin: bool,
+    pub last_message_seen: u64,
+}
+
+#[derive(Debug)]
 pub struct Conversation {
     pub id: ConvID,
-    pub owner_id: UserID,
     pub name: Option<String>,
-    pub members: Vec<UserID>,
+    pub color: Option<String>,
+    pub background: Option<String>,
+    pub creation_time: u64,
+    pub group_id: Option<GroupID>,
+    pub can_everyone_add_members: bool,
+    pub last_activity: u64,
+    pub members: Vec<ConversationMember>,
+}
+
+impl PartialEq for Conversation {
+    fn eq(&self, other: &Self) -> bool {
+        self.id.eq(&other.id)
+    }
+}
+
+impl Eq for Conversation {}
+
+impl Conversation {
+    /// Get the IDs of the members in the conversation
+    pub fn members_ids(&self) -> Vec<UserID> {
+        self.members.iter().map(|m| m.user_id.clone()).collect()
+    }
+
+    /// Check out whether this conversation is managed or not
+    pub fn is_managed(&self) -> bool {
+        self.group_id.is_some()
+    }
+
+    /// Check out whether a given user is an admin of a conversation or not
+    pub fn is_admin(&self, user_id: &UserID) -> bool {
+        self
+            .members
+            .iter()
+            .any(|m| m.user_id == user_id && m.is_admin)
+    }
+
+    /// Check out whether a user is the last administrator of a conversation or not
+    pub fn is_last_admin(&self, user_id: &UserID) -> bool {
+        let admins: Vec<&ConversationMember> = self.members
+            .iter()
+            .filter(|m| m.is_admin)
+            .collect();
+
+        admins.len() == 1 && admins[0].user_id == user_id
+    }
+}
+
+/// Structure used to update the list of members of the conversation
+pub struct ConversationMemberSetting {
+    pub user_id: UserID,
+    pub set_admin: bool,
+}
+
+/// Structure used to update conversation settings
+pub struct NewConversationSettings {
+    pub conv_id: ConvID,
+    pub color: Option<String>,
+    pub name: Option<String>,
     pub can_everyone_add_members: bool,
-    pub last_active: u64,
-    pub time_create: u64,
-
-    pub following: bool,
-    pub saw_last_message: bool,
 }

src/data/conversation_message.rs

@@ -6,6 +6,7 @@ use std::collections::HashSet;
 
 use crate::data::error::{ExecError, Res};
 use crate::data::user::UserID;
+use crate::data::conversation::ConvID;
 
 pub type ConvMessageID = u64;
 
@@ -101,7 +102,7 @@ impl ConversationServerMessageType {
 pub struct ConversationMessage {
     pub id: ConvMessageID,
     pub time_sent: u64,
-    pub conv_id: u64,
+    pub conv_id: ConvID,
     pub user_id: Option<UserID>,
     pub message: Option<String>,
     pub server_message: Option<ConversationServerMessageType>,

src/data/new_conversation.rs

@@ -3,11 +3,15 @@
 //! @author Pierre Huber
 
 use crate::data::user::UserID;
+use crate::data::group_id::GroupID;
 
 #[derive(Debug)]
 pub struct NewConversation {
     pub owner_id: UserID,
     pub name: Option<String>,
+    pub group_id: Option<GroupID>,
+    pub color: Option<String>,
+    pub background: Option<String>,
     pub owner_following: bool,
     pub members: Vec<UserID>,
     pub can_everyone_add_members: bool

src/data/new_conversation_message.rs

@@ -3,11 +3,14 @@
 //! @author Pierre Hubert
 
 use crate::data::user::UserID;
+use crate::data::conversation::ConvID;
+use crate::data::conversation_message::{ConversationMessageFile, ConversationServerMessageType};
 
 /// Information about a new conversation message
 pub struct NewConversationMessage {
-    pub user_id: UserID,
+    pub user_id: Option<UserID>,
-    pub conv_id: u64,
+    pub conv_id: ConvID,
-    pub message: String,
+    pub message: Option<String>,
-    pub image_path: Option<String>
+    pub file: Option<ConversationMessageFile>,
+    pub server_message: Option<ConversationServerMessageType>
 }

src/data/user_membership.rs

@@ -20,7 +20,7 @@ impl UserMembership {
         match self {
             UserMembership::Group(_, last_active) => *last_active,
             UserMembership::Friend(f) => f.last_activity_time,
-            UserMembership::Conversation(c) => c.last_active,
+            UserMembership::Conversation(c) => c.last_activity,
         }
     }
 }

src/helpers/conversations_helper.rs

@@ -3,7 +3,7 @@
 //! @author Pierre Hubert
 
 use crate::constants::database_tables_names::{CONV_LIST_TABLE, CONV_MEMBERS_TABLE, CONV_MESSAGES_TABLE};
-use crate::data::conversation::Conversation;
+use crate::data::conversation::{Conversation, ConversationMember, ConversationMemberSetting, ConvID, NewConversationSettings};
 use crate::data::conversation_message::{ConversationMessage, ConversationMessageFile, ConversationServerMessageType};
 use crate::data::error::{ExecError, Res, ResultBoxError};
 use crate::data::new_conversation::NewConversation;
@@ -11,57 +11,81 @@ use crate::data::new_conversation_message::NewConversationMessage;
 use crate::data::unread_conversation::UnreadConversation;
 use crate::data::user::{User, UserID};
 use crate::helpers::{database, events_helper};
-use crate::helpers::database::InsertQuery;
+use crate::helpers::database::{InsertQuery, UpdateInfo};
 use crate::helpers::events_helper::Event;
 use crate::utils::date_utils::time;
 use crate::utils::user_data_utils::delete_user_data_file_if_exists;
 
 /// Create a new conversation. This method returns the ID of the created conversation
-pub fn create(conv: &NewConversation) -> ResultBoxError<u64> {
+pub fn create(conv: &NewConversation) -> Res<ConvID> {
     // Create the conversation in the main table
     let conv_id = InsertQuery::new(CONV_LIST_TABLE)
         .add_user_id("user_id", &conv.owner_id)
         .add_str("name", conv.name.clone().unwrap_or(String::new()).as_str())
-        .add_u64("last_active", time())
+        .add_u64("last_activity", time())
         .add_u64("creation_time", time())
+        .add_opt_str("color", Option::from(&conv.color))
+        .add_opt_str("background", Option::from(&conv.background))
         .add_legacy_bool("can_everyone_add_members", conv.can_everyone_add_members)
-        .insert()?.ok_or(ExecError::new("missing result conv id!"))?;
+        .add_opt_group_id("group_id", conv.group_id.clone())
+        .insert()?
+        .map(|i| ConvID::new(i))
+        .ok_or(ExecError::new("missing result conv id!"))?;
 
     // Add the members to the conversation
     for member in &conv.members {
+
         // Check following status of the member
         let mut follow = true;
+        let mut admin = false;
         if member.eq(&conv.owner_id) {
             follow = conv.owner_following;
+            admin = true;
         }
 
-        add_member(conv_id, member, follow)?;
+        add_member(conv_id, member, follow, admin)?;
     }
 
     Ok(conv_id)
 }
 
 /// Add a member to a conversation
-pub fn add_member(conv_id: u64, user_id: &UserID, following: bool) -> ResultBoxError<()> {
+pub fn add_member(conv_id: ConvID, user_id: &UserID, following: bool, admin: bool) -> Res {
     InsertQuery::new(CONV_MEMBERS_TABLE)
-        .add_u64("conv_id", conv_id)
+        .add_conv_id("conv_id", conv_id)
         .add_user_id("user_id", user_id)
-        .add_u64("time_add", time())
+        .add_u64("added_on", time())
         .add_legacy_bool("following", following)
-        .add_legacy_bool("saw_last_message", true)
+        .add_legacy_bool("is_admin", admin)
+        .add_u64("last_message_seen", 0)
         .insert()?;
 
+    // TODO : create a message
+
     Ok(())
 }
 
-/// Remove a member from a conversation
+/// Update admin status of a member for a conversation
-pub fn remove_member(conv_id: u64, user_id: &UserID) -> ResultBoxError<()> {
+pub fn set_admin(conv_id: &ConvID, user_id: &UserID, admin: bool) -> Res {
-    database::DeleteQuery::new(CONV_MEMBERS_TABLE)
+    UpdateInfo::new(CONV_MEMBERS_TABLE)
-        .cond_u64("conv_id", conv_id)
         .cond_user_id("user_id", user_id)
+        .cond_conv_id("conv_id", conv_id.clone())
+        .set_legacy_bool("is_admin", admin)
         .exec()
 }
 
+/// Remove a member from a conversation
+pub fn remove_member(conv_id: ConvID, user_id: &UserID) -> ResultBoxError<()> {
+    database::DeleteQuery::new(CONV_MEMBERS_TABLE)
+        .cond_conv_id("conv_id", conv_id)
+        .cond_user_id("user_id", user_id)
+        .exec()?;
+
+    // TODO : create a message
+
+    Ok(())
+}
+
 /// Get the list of conversations of a specific user
 pub fn get_list_user(user_id: &UserID) -> ResultBoxError<Vec<Conversation>> {
     database::QueryInfo::new(CONV_LIST_TABLE)
@@ -71,67 +95,46 @@ pub fn get_list_user(user_id: &UserID) -> ResultBoxError<Vec<Conversation>> {
         .join(CONV_MEMBERS_TABLE, "u", "l.id = u.conv_id")
 
         // Specify selected fields
-        .add_field("*")
+        .add_field("l.*")
-        .add_field("l.id as id")
-        .add_field("l.user_id as owner_id")
 
         // Filter query
         .cond_user_id("u.user_id", user_id)
 
         // Sort results
-        .set_order("l.last_active DESC")
+        .set_order("l.last_activity DESC")
 
         // Execute query
         .exec(db_to_conversation_info)
 }
 
 /// Get information about a single conversation
-pub fn get_single(conv_id: u64, user_id: &UserID) -> ResultBoxError<Conversation> {
+pub fn get_single(conv_id: ConvID) -> ResultBoxError<Conversation> {
     // Tables
     database::QueryInfo::new(CONV_LIST_TABLE)
-        .alias("l")
+        .cond_conv_id("id", conv_id)
-        .join(CONV_MEMBERS_TABLE, "u", "l.id = u.conv_id")
-
-        // Fields
-        .add_field("*")
-        .add_field("l.id as id")
-        .add_field("l.user_id as owner_id")
-
-        // Conditions
-        .cond_u64("l.id", conv_id)
-        .cond_user_id("u.user_id", user_id)
-
         .query_row(db_to_conversation_info)
 }
 
 /// Get the list of members of a conversation
-pub fn get_list_members(conv_id: u64) -> ResultBoxError<Vec<UserID>> {
+pub fn get_list_members(conv_id: ConvID) -> Res<Vec<ConversationMember>> {
     database::QueryInfo::new(CONV_MEMBERS_TABLE)
-        .cond_u64("conv_id", conv_id)
+        .cond_conv_id("conv_id", conv_id)
-        .add_field("user_id")
+        .exec(db_to_conversation_member)
-        .exec(|res| res.get_user_id("user_id"))
 }
 
 /// Check if a user belongs to a conversation or not
-pub fn does_user_belongs_to(user_id: &UserID, conv_id: u64) -> ResultBoxError<bool> {
+pub fn get_user_membership(user_id: &UserID, conv_id: ConvID) -> Res<ConversationMember> {
-    Ok(database::QueryInfo::new(CONV_MEMBERS_TABLE)
+    database::QueryInfo::new(CONV_MEMBERS_TABLE)
-        .cond_u64("conv_id", conv_id)
+        .cond_conv_id("conv_id", conv_id)
         .cond_user_id("user_id", user_id)
-        .exec_count()? > 0)
+        .query_row(db_to_conversation_member)
 }
 
-/// Check out wheter a user is the moderator of a conversation or not
-pub fn is_user_moderator(user_id: &UserID, conv_id: u64) -> ResultBoxError<bool> {
-    Ok(database::QueryInfo::new(CONV_LIST_TABLE)
-        .cond_u64("id", conv_id)
-        .cond_user_id("user_id", user_id)
-        .exec_count()? > 0)
-}
 
 /// Check out whether all the members of a conversation can add members to it or not
-pub fn can_everyone_add_members(conv_id: u64) -> ResultBoxError<bool> {
+pub fn can_everyone_add_members(conv_id: ConvID) -> ResultBoxError<bool> {
     database::QueryInfo::new(CONV_LIST_TABLE)
-        .cond_u64("id", conv_id)
+        .cond_conv_id("id", conv_id)
         .add_field("can_everyone_add_members")
         .query_row(|f| f.get_legacy_bool("can_everyone_add_members"))
 }
@@ -146,25 +149,28 @@ pub fn set_following(user_id: &UserID, conv_id: u64, following: bool) -> ResultB
 }
 
 /// Set a new list of members for a given conversation
-pub fn set_members(conv_id: u64, new_list: &Vec<UserID>, can_delete: bool) -> ResultBoxError<()> {
+pub fn set_members(conv_id: ConvID, new_list: &Vec<ConversationMemberSetting>, can_delete: bool) -> ResultBoxError<()> {
     let curr_list = get_list_members(conv_id)?;
 
     // Add new members
     for member in new_list {
-        if curr_list.contains(member) {
+        if let Some(user) = curr_list.iter().filter(|m| m.user_id == member.user_id).next() {
-            continue;
+            // Check if we have to update admin state
+            if user.is_admin != member.set_admin {
+                set_admin(&conv_id, &member.user_id, member.set_admin)?;
+            }
+        } else {
+            add_member(conv_id, &member.user_id, true, member.set_admin)?;
         }
-
-        add_member(conv_id, member, true)?;
     }
 
     // Remove a member
     if can_delete {
         for member in curr_list {
-            if new_list.contains(&member) {
+            if new_list.iter().any(|m| m.user_id.eq(&member.user_id)) {
                 continue;
             }
-            remove_member(conv_id, &member)?;
+            remove_member(conv_id, &member.user_id)?;
         }
     }
 
@@ -173,23 +179,17 @@ pub fn set_members(conv_id: u64, new_list: &Vec<UserID>, can_delete: bool) -> Re
 }
 
 /// Set a new name to the conversation
-pub fn set_name(conv_id: u64, name: Option<String>) -> ResultBoxError<()> {
+pub fn set_settings(settings: NewConversationSettings) -> Res {
     database::UpdateInfo::new(CONV_LIST_TABLE)
-        .cond_u64("id", conv_id)
+        .cond_conv_id("id", settings.conv_id)
-        .set_opt_str("name", name)
+        .set_opt_str("name", settings.name)
-        .exec()
+        .set_opt_str("color", settings.color)
-}
+        .set_legacy_bool("can_everyone_add_members", settings.can_everyone_add_members)
-
-/// Specify whether any member of this conversation can invite other users to join it
-pub fn set_can_everyone_add_members(conv_id: u64, allow: bool) -> ResultBoxError<()> {
-    database::UpdateInfo::new(CONV_LIST_TABLE)
-        .cond_u64("id", conv_id)
-        .set_legacy_bool("can_everyone_add_members", allow)
         .exec()
 }
 
 /// Search for private conversation between two users
-pub fn find_private(user_1: &UserID, user_2: &UserID) -> ResultBoxError<Vec<u64>> {
+pub fn find_private(user_1: &UserID, user_2: &UserID) -> ResultBoxError<Vec<ConvID>> {
     database::QueryInfo::new(CONV_MEMBERS_TABLE)
         .alias("t1")
 
@@ -201,7 +201,7 @@ pub fn find_private(user_1: &UserID, user_2: &UserID) -> ResultBoxError<Vec<u64>
         .cond_user_id("t2.user_id", user_2)
         .set_custom_where(format!("(SELECT COUNT(*) FROM {} WHERE conv_id = t1.conv_id) = 2", CONV_MEMBERS_TABLE).as_ref())
         .add_field("t1.conv_id AS conv_id")
-        .exec(|f| f.get_u64("conv_id"))
+        .exec(|f| f.get_conv_id("conv_id"))
 }
 
 /// Get the last messages posted in a conversation
@@ -247,9 +247,9 @@ pub fn get_older_messages(conv_id: u64, start_id: u64, limit: u64) -> ResultBoxE
 }
 
 /// Get all the messages of a single user for a conversation
-pub fn get_user_messages_for_conversations(conv_id: u64, user_id: &UserID) -> ResultBoxError<Vec<ConversationMessage>> {
+pub fn get_user_messages_for_conversations(conv_id: ConvID, user_id: &UserID) -> ResultBoxError<Vec<ConversationMessage>> {
     database::QueryInfo::new(CONV_MESSAGES_TABLE)
-        .cond_u64("conv_id", conv_id)
+        .cond_conv_id("conv_id", conv_id)
         .cond_user_id("user_id", user_id)
         .exec(db_to_conversation_message)
 }
@@ -293,16 +293,16 @@ pub fn delete_all_user_messages(user_id: &UserID) -> ResultBoxError {
 /// Remove the user from all the conversations he belongs to
 pub fn delete_all_user_conversations(user_id: &UserID) -> ResultBoxError {
     for conversation in &get_list_user(user_id)? {
-        remove_user_from_conversation(user_id, conversation.id)?;
+        remove_user_from_conversation(user_id, conversation, user_id)?;
     }
 
     Ok(())
 }
 
 /// Get the entire list of messages of a given conversation
-pub fn get_all_messages(conv_id: u64) -> ResultBoxError<Vec<ConversationMessage>> {
+pub fn get_all_messages(conv_id: ConvID) -> ResultBoxError<Vec<ConversationMessage>> {
     database::QueryInfo::new(CONV_MESSAGES_TABLE)
-        .cond_u64("conv_id", conv_id)
+        .cond_conv_id("conv_id", conv_id)
         .exec(db_to_conversation_message)
 }
 
@@ -318,39 +318,45 @@ pub fn send_message(msg: &NewConversationMessage) -> ResultBoxError<()> {
     let t = time();
 
     // Insert the message in the database
-    let msg_id = database::InsertQuery::new(CONV_MESSAGES_TABLE)
+    let mut msg_request = database::InsertQuery::new(CONV_MESSAGES_TABLE)
-        .add_u64("conv_id", msg.conv_id)
+        .add_conv_id("conv_id", msg.conv_id)
-        .add_user_id("user_id", &msg.user_id)
+        .add_u64("user_id", msg.user_id.as_ref().map(|u| u.id()).unwrap_or(0))
-        .add_u64("time_insert", t)
+        .add_u64("time_sent", t);
-        .add_str("message", msg.message.as_str())
+
-        .add_opt_str("image_path", msg.image_path.as_ref())
+    if let Some(server_msg) = &msg.server_message {
-        .insert_expect_result()?;
+        msg_request = msg_request.add_str("message", &server_msg.to_db());
+    } else if let Some(message) = &msg.message {
+        msg_request = msg_request.add_str("message", message);
+    }
+
+    if let Some(file) = &msg.file {
+        msg_request = msg_request.add_str("file_path", &file.path)
+            .add_u64("file_size", file.size)
+            .add_str("file_name", &file.name)
+            .add_str("file_type", &file.r#type)
+            .add_opt_str("file_thumbnail", Option::from(&file.thumbnail));
+    }
+
+    let msg_id = msg_request.insert_expect_result()?;
 
     // Update the last activity of the conversation
     database::UpdateInfo::new(CONV_LIST_TABLE)
-        .cond_u64("id", msg.conv_id)
+        .cond_conv_id("id", msg.conv_id)
-        .set_u64("last_active", t)
+        .set_u64("last_activity", t)
         .exec()?;
 
     // Get the list of users to notify after the update
     let list_to_notify = database::QueryInfo::new(CONV_MEMBERS_TABLE)
-        .cond_u64("conv_id", msg.conv_id)
+        .cond_conv_id("conv_id", msg.conv_id)
-        .cond_legacy_bool("saw_last_message", true)
         .cond_legacy_bool("following", true)
         .set_custom_where("user_id != ?")
-        .add_custom_where_argument_user_id(&msg.user_id)
+        .add_custom_where_argument_user_id(msg.user_id.as_ref().unwrap_or(&UserID::invalid()))
         .exec(|r| r.get_user_id("user_id"))?;
 
-    // Mark all the users of the conversation as unread
+    // Mark the user has seen his message
-    database::UpdateInfo::new(CONV_MEMBERS_TABLE)
+    if let Some(user_id) = &msg.user_id {
-        .cond_u64("conv_id", msg.conv_id)
+        mark_user_seen(msg.conv_id, user_id, msg_id)?;
-        .cond_legacy_bool("saw_last_message", true)
+    }
-
-        .custom_where("user_id != ?")
-        .add_custom_where_arg_u64(msg.user_id.id())
-
-        .set_legacy_bool("saw_last_message", false)
-        .exec()?;
 
     // Send an event (updated_number_unread_conversations)
     events_helper::propagate_event(&Event::UpdatedNumberUnreadConversations(&list_to_notify))?;
@@ -419,34 +425,32 @@ pub fn get_list_unread(user_id: &UserID) -> ResultBoxError<Vec<UnreadConversatio
 
         .cond_user_id("users.user_id", user_id)
         .cond_legacy_bool("users.following", true)
-        .cond_legacy_bool("users.saw_last_message", false)
 
-        .set_custom_where("list.last_active = messages.time_insert")
+        .set_custom_where("list.last_activity = messages.time_insert AND user.last_message_seen < messages.id")
 
-        .set_order("list.last_active DESC")
+        .set_order("list.last_activity DESC")
 
         .add_field("messages.conv_id")
         .add_field("name")
-        .add_field("last_active")
+        .add_field("last_activity")
         .add_field("messages.user_id")
         .add_field("message")
 
         .exec(|res| Ok(UnreadConversation {
             id: res.get_u64("conv_id")?,
             name: res.get_optional_str("name")?,
-            last_active: res.get_u64("last_active")?,
+            last_active: res.get_u64("last_activity")?,
             user_id: res.get_user_id("user_id")?,
             message: res.get_str("message")?,
         }))
 }
 
 /// Indicate that a user has seen the last messages of a conversation
-pub fn mark_user_seen(conv_id: u64, user_id: &UserID) -> ResultBoxError<()> {
+pub fn mark_user_seen(conv_id: ConvID, user_id: &UserID, last_msg: u64) -> ResultBoxError<()> {
     database::UpdateInfo::new(CONV_MEMBERS_TABLE)
-        .cond_u64("conv_id", conv_id)
+        .cond_conv_id("conv_id", conv_id)
         .cond_user_id("user_id", user_id)
-        .cond_legacy_bool("saw_last_message", false)
+        .set_u64("last_message_seen", last_msg)
-        .set_legacy_bool("saw_last_message", true)
         .exec()?;
 
     // Push an event (updated_number_unread_conversations)
@@ -456,36 +460,41 @@ pub fn mark_user_seen(conv_id: u64, user_id: &UserID) -> ResultBoxError<()> {
 }
 
 /// Remove a user from a conversation
-pub fn remove_user_from_conversation(user_id: &UserID, conv_id: u64) -> ResultBoxError<()> {
+pub fn remove_user_from_conversation(user_id: &UserID, conv: &Conversation, remover: &UserID) -> ResultBoxError<()> {
-    if is_user_moderator(user_id, conv_id)? {
+    if conv.is_last_admin(user_id) {
-        delete_conversation(conv_id)
+        delete_conversation(conv)
     } else {
-        delete_member(user_id, conv_id)
+        delete_member(user_id, conv.id, remover)
     }
 }
 
 /// Remove permanently a conversation
-pub fn delete_conversation(conv_id: u64) -> ResultBoxError<()> {
+pub fn delete_conversation(conv: &Conversation) -> ResultBoxError<()> {
     // Delete all the messages of the conversations
-    for message in get_all_messages(conv_id)? {
+    for message in get_all_messages(conv.id)? {
         delete_message(&message)?;
     }
 
     // Delete all the members of the conversation
     database::DeleteQuery::new(CONV_MEMBERS_TABLE)
-        .cond_u64("conv_id", conv_id)
+        .cond_conv_id("conv_id", conv.id)
         .exec()?;
 
+    // Delete associated background image, if any
+    if let Some(image) = &conv.background {
+        delete_user_data_file_if_exists(image)?;
+    }
+
     // Delete the conversation entry itself
     database::DeleteQuery::new(CONV_LIST_TABLE)
-        .cond_u64("id", conv_id)
+        .cond_conv_id("id", conv.id)
         .exec()?;
 
     Ok(())
 }
 
 /// Delete a conversation membership
-pub fn delete_member(user_id: &UserID, conv_id: u64) -> ResultBoxError<()> {
+pub fn delete_member(user_id: &UserID, conv_id: ConvID, _remover: &UserID) -> ResultBoxError<()> {
     for msg in get_user_messages_for_conversations(conv_id, user_id)? {
         delete_message(&msg)?;
     }
@@ -507,17 +516,30 @@ pub fn is_message_owner(user_id: &UserID, message_id: u64) -> ResultBoxError<boo
 
 /// Turn a database entry into a ConversationInfo object
 fn db_to_conversation_info(row: &database::RowResult) -> ResultBoxError<Conversation> {
-    let conv_id = row.get_u64("id")?;
+    let conv_id = row.get_conv_id("id")?;
     Ok(Conversation {
         id: conv_id,
-        owner_id: row.get_user_id("owner_id")?,
+        color: row.get_optional_str("color")?,
+        background: row.get_optional_str("background")?,
         name: row.get_optional_str("name")?,
         members: get_list_members(conv_id)?,
         can_everyone_add_members: row.get_legacy_bool("can_everyone_add_members")?,
-        last_active: row.get_u64("last_active")?,
+        last_activity: row.get_u64("last_activity")?,
-        time_create: row.get_u64("time_add")?,
+        creation_time: row.get_u64("creation_time")?,
+        group_id: row.get_optional_group_id("group_id")?,
+    })
+}
+
+/// Turn a database entry into a ConversationMember object
+fn db_to_conversation_member(row: &database::RowResult) -> Res<ConversationMember> {
+    Ok(ConversationMember {
+        member_id: row.get_u64("id")?,
+        conv_id: row.get_conv_id("conv_id")?,
+        user_id: row.get_user_id("user_id")?,
+        added_on: row.get_u64("added_on")?,
         following: row.get_legacy_bool("following")?,
-        saw_last_message: row.get_legacy_bool("saw_last_message")?,
+        is_admin: row.get_legacy_bool("is_admin")?,
+        last_message_seen: row.get_u64("last_message_seen")?,
     })
 }
 
@@ -529,10 +551,10 @@ fn db_to_conversation_message(row: &database::RowResult) -> ResultBoxError<Conve
         false => Some(row.get_user_id("user_id")?)
     };
 
-    let file = match row.is_null_or_empty("filepath")? {
+    let file = match row.is_null_or_empty("file_path")? {
         true => None,
         false => Some(ConversationMessageFile {
-            path: row.get_str("filepath")?,
+            path: row.get_str("file_path")?,
             size: row.get_u64("file_size")?,
             name: row.get_str("file_name")?,
             thumbnail: row.get_optional_str("file_thumbnail")?,
@@ -553,7 +575,7 @@ fn db_to_conversation_message(row: &database::RowResult) -> ResultBoxError<Conve
     Ok(ConversationMessage {
         id: row.get_u64("id")?,
         time_sent: row.get_u64("time_sent")?,
-        conv_id: row.get_u64("conv_id")?,
+        conv_id: row.get_conv_id("conv_id")?,
         user_id,
         message,
         server_message,

src/helpers/database.rs

@@ -12,6 +12,7 @@ use crate::data::config::{conf, DatabaseConfig};
 use crate::data::error::{ExecError, ResultBoxError};
 use crate::data::group_id::GroupID;
 use crate::data::user::UserID;
+use crate::data::conversation::ConvID;
 
 /// Database access helper
 ///
@@ -174,6 +175,11 @@ impl QueryInfo {
         self
     }
 
+    pub fn cond_conv_id(mut self, key: &str, val: ConvID) -> QueryInfo {
+        self.conditions.insert(key.to_string(), mysql::Value::from(val.id()));
+        self
+    }
+
     pub fn cond_legacy_bool(mut self, key: &str, val: bool) -> QueryInfo {
         let val = match val {
             true => 1,
@@ -358,6 +364,19 @@ impl<'a> RowResult<'a> {
         Ok(GroupID::new(self.get_u64(name)?))
     }
 
+    /// Get the optional ID of a group included in the response
+    pub fn get_optional_group_id(&self, name: &str) -> ResultBoxError<Option<GroupID>> {
+        Ok(match self.get_optional_u64(name)? {
+            None | Some(0) => None,
+            Some(id) => Some(GroupID::new(id))
+        })
+    }
+
+    /// Get the ID of a conversation included in the response
+    pub fn get_conv_id(&self, name: &str) -> ResultBoxError<ConvID> {
+        Ok(ConvID::new(self.get_u64(name)?))
+    }
+
     /// Find a string included in the request
     pub fn get_str(&self, name: &str) -> Result<String, Box<dyn Error>> {
         let value = self.row.get_opt(self.find_col(name)?);
@@ -588,6 +607,19 @@ impl InsertQuery {
         self
     }
 
+    /// Add an optional number. If None, Null will be inserted
+    pub fn add_opt_u64(mut self, key: &str, value: Option<u64>) -> InsertQuery {
+        self.values.insert(key.to_string(), value
+            .map(|u| Value::UInt(u))
+            .unwrap_or(Value::NULL));
+        self
+    }
+
+    /// Add an optional number. If None, Null will be inserted
+    pub fn add_opt_group_id(self, key: &str, value: Option<GroupID>) -> InsertQuery {
+        self.add_opt_u64(key, value.map(|u| u.id()))
+    }
+
     /// Add an integer
     pub fn add_i64(mut self, key: &str, value: i64) -> InsertQuery {
         self.values.insert(key.to_string(), Value::from(value));
@@ -619,6 +651,12 @@ impl InsertQuery {
         self
     }
 
+    pub fn add_conv_id(mut self, key: &str, value: ConvID) -> InsertQuery {
+        self.values.insert(key.to_string(), Value::from(value.id()));
+        self
+    }
+
+
 
     /// Legacy database boolean (1 = true / 0 = false)
     pub fn add_legacy_bool(mut self, key: &str, value: bool) -> InsertQuery {
@@ -758,6 +796,11 @@ impl DeleteQuery {
         self
     }
 
+    pub fn cond_conv_id(mut self, key: &str, value: ConvID) -> DeleteQuery {
+        self.conditions.insert(key.to_string(), Value::from(value.id()));
+        self
+    }
+
     /// Execute the delete query
     pub fn exec(self) -> ResultBoxError<()> {
         delete(self)
@@ -832,6 +875,13 @@ impl UpdateInfo {
         self
     }
 
+    /// Filter with a conversation id
+    pub fn cond_conv_id(mut self, name: &str, val: ConvID) -> UpdateInfo {
+        self.cond.insert(name.to_string(), Value::UInt(val.id()));
+        self
+    }
+
+
     /// Filter with an unsigned integer
     pub fn cond_u64(mut self, name: &str, val: u64) -> UpdateInfo {
         self.cond.insert(name.to_string(), Value::UInt(val));

src/routes.rs

@@ -196,7 +196,6 @@ pub fn get_routes() -> Vec<Route> {
         Route::post("/conversations/getInfosOne", Box::new(conversations_controller::get_single)),
         Route::post("/conversations/updateSettings", Box::new(conversations_controller::update_settings)),
         Route::post("/conversations/getPrivate", Box::new(conversations_controller::find_private)),
-        Route::post("/conversations/refresh", Box::new(conversations_controller::refresh_list)),
         Route::post("/conversations/refresh_single", Box::new(conversations_controller::refresh_single)),
         Route::post("/conversations/get_older_messages", Box::new(conversations_controller::get_older_messages)),
         Route::post("/conversations/sendMessage", Box::new(conversations_controller::send_message)),
@@ -205,6 +204,7 @@ pub fn get_routes() -> Vec<Route> {
         Route::post("/conversations/delete", Box::new(conversations_controller::delete_conversation)),
         Route::post("/conversations/updateMessage", Box::new(conversations_controller::update_message)),
         Route::post("/conversations/deleteMessage", Box::new(conversations_controller::delete_message)),
+        // TODO : add a route to mark messages seen
 
 
         // Search controller

src/utils/string_utils.rs

@@ -93,3 +93,17 @@ pub fn check_emoji_code(shortcut: &str) -> bool {
     let r = Regex::new(r"^:[a-zA-Z0-9]+:$").unwrap();
     r.is_match(shortcut)
 }
+
+/// Check the validity of an HTML color
+///
+/// ```
+/// use comunic_server::utils::string_utils::check_emoji_code;
+///
+/// assert_eq!(check_emoji_code("AAFF00"), true);
+/// assert_eq!(check_emoji_code("ABC"), false);
+/// assert_eq!(check_emoji_code("UUFF00"), false);
+/// ```
+pub fn check_html_color(color: &str) -> bool {
+    let r = Regex::new(r"^:[A-F0-9]{6}:$").unwrap();
+    r.is_match(color)
+}