mirror of
https://github.com/619dev/PaperPhone.git
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88 lines
3.1 KiB
SQL
88 lines
3.1 KiB
SQL
-- PaperPhone IM Database Schema
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-- MySQL 8.0+
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CREATE DATABASE IF NOT EXISTS paperphone CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
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USE paperphone;
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-- Users table
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CREATE TABLE IF NOT EXISTS users (
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id VARCHAR(36) PRIMARY KEY,
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username VARCHAR(64) NOT NULL UNIQUE,
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nickname VARCHAR(128) NOT NULL,
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avatar VARCHAR(512) DEFAULT NULL,
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password VARCHAR(255) NOT NULL,
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-- X3DH Identity Key (public, base64)
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ik_pub TEXT NOT NULL,
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-- Signed PreKey (public, base64)
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spk_pub TEXT NOT NULL,
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spk_sig TEXT NOT NULL,
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-- ML-KEM-768 long-term public key
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kem_pub TEXT NOT NULL,
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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last_seen DATETIME DEFAULT CURRENT_TIMESTAMP,
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is_online TINYINT(1) DEFAULT 0,
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INDEX idx_username (username)
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) ENGINE=InnoDB;
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-- One-time prekeys (X3DH OPKs)
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CREATE TABLE IF NOT EXISTS prekeys (
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id INT AUTO_INCREMENT PRIMARY KEY,
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user_id VARCHAR(36) NOT NULL,
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key_id INT NOT NULL,
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opk_pub TEXT NOT NULL,
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used TINYINT(1) DEFAULT 0,
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FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
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INDEX idx_user_unused (user_id, used)
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) ENGINE=InnoDB;
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-- Friendships
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CREATE TABLE IF NOT EXISTS friends (
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id INT AUTO_INCREMENT PRIMARY KEY,
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user_id VARCHAR(36) NOT NULL,
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friend_id VARCHAR(36) NOT NULL,
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status ENUM('pending','accepted','blocked') DEFAULT 'pending',
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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UNIQUE KEY uk_pair (user_id, friend_id),
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FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
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FOREIGN KEY (friend_id) REFERENCES users(id) ON DELETE CASCADE
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) ENGINE=InnoDB;
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-- Groups
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CREATE TABLE IF NOT EXISTS `groups` (
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id VARCHAR(36) PRIMARY KEY,
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name VARCHAR(128) NOT NULL,
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avatar VARCHAR(512) DEFAULT NULL,
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owner_id VARCHAR(36) NOT NULL,
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notice TEXT DEFAULT NULL,
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (owner_id) REFERENCES users(id)
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) ENGINE=InnoDB;
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-- Group members
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CREATE TABLE IF NOT EXISTS group_members (
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group_id VARCHAR(36) NOT NULL,
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user_id VARCHAR(36) NOT NULL,
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role ENUM('owner','admin','member') DEFAULT 'member',
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joined_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (group_id, user_id),
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FOREIGN KEY (group_id) REFERENCES `groups`(id) ON DELETE CASCADE,
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FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
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) ENGINE=InnoDB;
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-- Messages (server only stores ciphertext for offline delivery)
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-- Once delivered, messages are deleted from server
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CREATE TABLE IF NOT EXISTS messages (
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id VARCHAR(36) PRIMARY KEY,
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type ENUM('private','group') NOT NULL,
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from_id VARCHAR(36) NOT NULL,
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to_id VARCHAR(36) NOT NULL, -- user_id or group_id
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-- Encrypted payload (base64)
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ciphertext LONGTEXT NOT NULL,
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-- X3DH initial message header if first message
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header TEXT DEFAULT NULL,
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msg_type ENUM('text','image','file','voice','video_call','system') DEFAULT 'text',
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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delivered TINYINT(1) DEFAULT 0,
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INDEX idx_to_undelivered (to_id, delivered, created_at)
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) ENGINE=InnoDB;
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