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    use crate::{database::DatabaseGuard, pdu::PduBuilder, utils, ConduitResult, Error, Ruma};
    
    use ruma::{
        api::client::{
            error::ErrorKind,
            r0::profile::{
                get_avatar_url, get_display_name, get_profile, set_avatar_url, set_display_name,
            },
        },
        events::EventType,
    
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    use std::convert::TryInto;
    
    
    #[cfg(feature = "conduit_bin")]
    use rocket::{get, put};
    
    #[cfg_attr(
        feature = "conduit_bin",
        put("/_matrix/client/r0/profile/<_>/displayname", data = "<body>")
    )]
    
    #[tracing::instrument(skip(db, body))]
    
    pub async fn set_displayname_route(
    
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        db: DatabaseGuard,
    
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        body: Ruma<set_display_name::Request<'_>>,
    
    ) -> ConduitResult<set_display_name::Response> {
    
        let sender_user = body.sender_user.as_ref().expect("user is authenticated");
    
            .set_displayname(&sender_user, body.displayname.clone())?;
    
    
        // Send a new membership event and presence update into all joined rooms
    
        for (pdu_builder, room_id) in db
            .rooms
            .rooms_joined(&sender_user)
            .filter_map(|r| r.ok())
            .map(|room_id| {
                Ok::<_, Error>((
                    PduBuilder {
                        event_type: EventType::RoomMember,
                        content: serde_json::to_value(ruma::events::room::member::MemberEventContent {
                            displayname: body.displayname.clone(),
                            ..serde_json::from_value::<Raw<_>>(
                                db.rooms
                                    .room_state_get(
                                        &room_id,
                                        &EventType::RoomMember,
                                        &sender_user.to_string(),
                                    )?
                                    .ok_or_else(|| {
                                        Error::bad_database(
    
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                                            "Tried to send displayname update for user not in the \
                                             room.",
                                        )
    
                                    .content
                                    .clone(),
    
                            )
                            .expect("from_value::<Raw<..>> can never fail")
                            .deserialize()
                            .map_err(|_| Error::bad_database("Database contains invalid PDU."))?
                        })
                        .expect("event is valid, we just created it"),
                        unsigned: None,
                        state_key: Some(sender_user.to_string()),
                        redacts: None,
                    },
                    room_id,
                ))
            })
            .filter_map(|r| r.ok())
        {
            let _ = db
                .rooms
                .build_and_append_pdu(pdu_builder, &sender_user, &room_id, &db);
    
    
            // Presence update
            db.rooms.edus.update_presence(
    
                &sender_user,
    
                &room_id,
                ruma::events::presence::PresenceEvent {
                    content: ruma::events::presence::PresenceEventContent {
    
                        avatar_url: db.users.avatar_url(&sender_user)?,
    
                        currently_active: None,
    
                        displayname: db.users.displayname(&sender_user)?,
    
                        last_active_ago: Some(
                            utils::millis_since_unix_epoch()
                                .try_into()
                                .expect("time is valid"),
                        ),
                        presence: ruma::presence::PresenceState::Online,
                        status_msg: None,
                    },
    
                    sender: sender_user.clone(),
    
        Ok(set_display_name::Response.into())
    }
    
    #[cfg_attr(
        feature = "conduit_bin",
        get("/_matrix/client/r0/profile/<_>/displayname", data = "<body>")
    )]
    
    #[tracing::instrument(skip(db, body))]
    
    pub async fn get_displayname_route(
    
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        db: DatabaseGuard,
    
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        body: Ruma<get_display_name::Request<'_>>,
    
    ) -> ConduitResult<get_display_name::Response> {
        Ok(get_display_name::Response {
            displayname: db.users.displayname(&body.user_id)?,
        }
        .into())
    }
    
    #[cfg_attr(
        feature = "conduit_bin",
        put("/_matrix/client/r0/profile/<_>/avatar_url", data = "<body>")
    )]
    
    #[tracing::instrument(skip(db, body))]
    
    pub async fn set_avatar_url_route(
    
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        db: DatabaseGuard,
    
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        body: Ruma<set_avatar_url::Request<'_>>,
    
    ) -> ConduitResult<set_avatar_url::Response> {
    
        let sender_user = body.sender_user.as_ref().expect("user is authenticated");
    
            .set_avatar_url(&sender_user, body.avatar_url.clone())?;
    
    
        // Send a new membership event and presence update into all joined rooms
    
        for (pdu_builder, room_id) in db
            .rooms
            .rooms_joined(&sender_user)
            .filter_map(|r| r.ok())
            .map(|room_id| {
                Ok::<_, Error>((
                    PduBuilder {
                        event_type: EventType::RoomMember,
                        content: serde_json::to_value(ruma::events::room::member::MemberEventContent {
                            avatar_url: body.avatar_url.clone(),
                            ..serde_json::from_value::<Raw<_>>(
                                db.rooms
                                    .room_state_get(
                                        &room_id,
                                        &EventType::RoomMember,
                                        &sender_user.to_string(),
                                    )?
                                    .ok_or_else(|| {
                                        Error::bad_database(
    
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                                            "Tried to send displayname update for user not in the \
                                             room.",
                                        )
    
                                    .content
                                    .clone(),
    
                            )
                            .expect("from_value::<Raw<..>> can never fail")
                            .deserialize()
                            .map_err(|_| Error::bad_database("Database contains invalid PDU."))?
                        })
                        .expect("event is valid, we just created it"),
                        unsigned: None,
                        state_key: Some(sender_user.to_string()),
                        redacts: None,
                    },
                    room_id,
                ))
            })
            .filter_map(|r| r.ok())
        {
            let _ = db
                .rooms
                .build_and_append_pdu(pdu_builder, &sender_user, &room_id, &db);
    
    
            // Presence update
            db.rooms.edus.update_presence(
    
                &sender_user,
    
                &room_id,
                ruma::events::presence::PresenceEvent {
                    content: ruma::events::presence::PresenceEventContent {
    
                        avatar_url: db.users.avatar_url(&sender_user)?,
    
                        currently_active: None,
    
                        displayname: db.users.displayname(&sender_user)?,
    
                        last_active_ago: Some(
                            utils::millis_since_unix_epoch()
                                .try_into()
                                .expect("time is valid"),
                        ),
                        presence: ruma::presence::PresenceState::Online,
                        status_msg: None,
                    },
    
                    sender: sender_user.clone(),
    
        Ok(set_avatar_url::Response.into())
    }
    
    #[cfg_attr(
        feature = "conduit_bin",
        get("/_matrix/client/r0/profile/<_>/avatar_url", data = "<body>")
    )]
    
    #[tracing::instrument(skip(db, body))]
    
    pub async fn get_avatar_url_route(
    
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        db: DatabaseGuard,
    
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        body: Ruma<get_avatar_url::Request<'_>>,
    
    ) -> ConduitResult<get_avatar_url::Response> {
        Ok(get_avatar_url::Response {
            avatar_url: db.users.avatar_url(&body.user_id)?,
        }
        .into())
    }
    
    #[cfg_attr(
        feature = "conduit_bin",
        get("/_matrix/client/r0/profile/<_>", data = "<body>")
    )]
    
    #[tracing::instrument(skip(db, body))]
    
    pub async fn get_profile_route(
    
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        db: DatabaseGuard,
    
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        body: Ruma<get_profile::Request<'_>>,
    
    ) -> ConduitResult<get_profile::Response> {
    
        if !db.users.exists(&body.user_id)? {
            // Return 404 if this user doesn't exist
    
            return Err(Error::BadRequest(
                ErrorKind::NotFound,
                "Profile was not found.",
            ));
        }
    
        Ok(get_profile::Response {
    
            avatar_url: db.users.avatar_url(&body.user_id)?,
            displayname: db.users.displayname(&body.user_id)?,