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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| export enum MessageType { | ||
| RAW = 0, | ||
| XOR = 1, | ||
| } | ||
|
|
||
| export class MessageEncoder { | ||
| private xor_key = 'suia'; | ||
|
|
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| public encode(raw_message: string, type: MessageType): Uint8Array { | ||
| let encoded = new Uint8Array(raw_message.length + 1); | ||
| let uint8Array = new Uint8Array(raw_message.length); | ||
| encoded[0] = type; | ||
| if (type == MessageType.RAW) { | ||
| uint8Array = this.encode_raw(raw_message); | ||
| } else if (type == MessageType.XOR) { | ||
| uint8Array = this.encode_xor(raw_message); | ||
| } else { | ||
| throw new Error('Unsupported message type'); | ||
| } | ||
| encoded.set(uint8Array, 1); | ||
| return encoded; | ||
| } | ||
|
|
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| public decode(encoded_message: Uint8Array): string { | ||
| let type = encoded_message[0]; | ||
| if (type == MessageType.RAW) { | ||
| return this.decode_raw(encoded_message.slice(1)); | ||
| } else if (type == MessageType.XOR) { | ||
| return this.decode_xor(encoded_message.slice(1)); | ||
| } else { | ||
| throw new Error('Unsupported message type'); | ||
| } | ||
| } | ||
|
|
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| public encode_raw(raw_message: string): Uint8Array { | ||
| const encoder = new TextEncoder(); | ||
| const uint8Array = encoder.encode(raw_message); | ||
| return uint8Array; | ||
| } | ||
|
|
||
| public decode_raw(encoded_message: Uint8Array): string { | ||
| const decoder = new TextDecoder(); | ||
| return decoder.decode(encoded_message); | ||
| } | ||
|
|
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| public encode_xor(raw_message: string): Uint8Array { | ||
| let raw = this.encode_raw(raw_message); | ||
| let result = new Uint8Array(raw.length); | ||
| for (let i = 0; i < raw.length; i++) { | ||
| result[i] = raw[i] ^ this.xor_key.charCodeAt(i % this.xor_key.length); | ||
| } | ||
| return result; | ||
| } | ||
|
|
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| public decode_xor(encoded_message: Uint8Array): string { | ||
| let result = new Uint8Array(encoded_message.length); | ||
| for (let i = 0; i < encoded_message.length; i++) { | ||
| result[i] = encoded_message[i] ^ this.xor_key.charCodeAt(i % this.xor_key.length); | ||
| } | ||
| return this.decode_raw(result); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| module socialcoin::club { | ||
| use std::vector; | ||
| use sui::clock::{Clock, timestamp_ms}; | ||
| use sui::table_vec; | ||
| use socialcoin::socialcoin::is_holder; | ||
| use socialcoin::socialcoin; | ||
| use sui::transfer::share_object; | ||
| use sui::table; | ||
| use sui::tx_context; | ||
| use sui::tx_context::TxContext; | ||
| use sui::table::Table; | ||
| use sui::table_vec::TableVec; | ||
| use sui::object::{UID, new}; | ||
|
|
||
| // errors | ||
| const ERR_NOT_AUTHORIZED: u64 = 1; | ||
| const ERR_MESSAGE_NOT_FOUND: u64 = 2; | ||
| const ERR_MESSAGE_DELETED: u64 = 3; | ||
|
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| struct Global has key, store { | ||
| id: UID, | ||
| admin: address, | ||
| clubs: Table<address, Club>, | ||
| } | ||
|
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| struct Club has store { | ||
| owner: address, | ||
| messages: TableVec<Message> | ||
| } | ||
|
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| struct Message has store { | ||
| sender: address, | ||
| content: vector<u8>, | ||
| timestamp: u64, | ||
| deleted: bool, | ||
| } | ||
|
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| fun init(ctx: &mut TxContext) { | ||
| let sender = tx_context::sender(ctx); | ||
| let global = Global { | ||
| id: new(ctx), | ||
| admin: sender, | ||
| clubs: table::new(ctx), | ||
| }; | ||
| share_object(global); | ||
| } | ||
|
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|
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| entry public fun new_message( | ||
| clock: &Clock, | ||
| social_coin_global: &socialcoin::Global, | ||
| club_global: &mut Global, | ||
| club_owner: address, | ||
| content: vector<u8>, | ||
| ctx: &mut TxContext, | ||
| ) { | ||
| let sender = tx_context::sender(ctx); | ||
| assert!(is_holder(social_coin_global, sender, club_owner), ERR_NOT_AUTHORIZED); | ||
| if(!table::contains(&club_global.clubs, club_owner)) { | ||
| let club = Club { | ||
| owner: club_owner, | ||
| messages: table_vec::empty(ctx), | ||
| }; | ||
| table::add(&mut club_global.clubs, club_owner, club); | ||
| }; | ||
| let club = table::borrow_mut(&mut club_global.clubs, club_owner); | ||
| let message = Message { | ||
| sender, | ||
| content, | ||
| timestamp: timestamp_ms(clock), | ||
| deleted: false, | ||
| }; | ||
| table_vec::push_back(&mut club.messages, message); | ||
| } | ||
|
|
||
| entry public fun delete_message( | ||
| club_global: &mut Global, | ||
| club_owner: address, | ||
| message_index: u64, | ||
| ctx: &mut TxContext, | ||
| ) { | ||
| let sender = tx_context::sender(ctx); | ||
| let club = table::borrow_mut(&mut club_global.clubs, club_owner); | ||
| assert!(message_index < table_vec::length(&club.messages), ERR_MESSAGE_NOT_FOUND); | ||
| let message = table_vec::borrow_mut(&mut club.messages, message_index); | ||
| assert!(message.sender == sender || club_global.admin == sender, ERR_NOT_AUTHORIZED); | ||
| assert!(!message.deleted, ERR_MESSAGE_DELETED); | ||
| message.content = vector::empty(); | ||
| message.deleted = true; | ||
| } | ||
| } |