Initial: Privacy Gateway Projekt mit Team-Implementierung

2026-05-09 05:58:21 +00:00
commit a25b234405
49 changed files with 5107 additions and 0 deletions
@@ -0,0 +1,69 @@
+-- Privacy Gateway Datenbank-Schema
+
+-- Sessions/Tabs für Multi-Chat
+CREATE TABLE IF NOT EXISTS sessions (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name VARCHAR(255) NOT NULL,
+    model VARCHAR(100) DEFAULT 'llama3.2:latest',
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    metadata JSONB DEFAULT '{}'
+);
+
+-- Nachrichten pro Session
+CREATE TABLE IF NOT EXISTS messages (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    session_id UUID REFERENCES sessions(id) ON DELETE CASCADE,
+    role VARCHAR(20) NOT NULL CHECK (role IN ('user', 'assistant', 'system')),
+    original_content TEXT NOT NULL,
+    anonymized_content TEXT,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+-- PII-Mappings für Re-Identifizierung
+CREATE TABLE IF NOT EXISTS pii_mappings (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    session_id UUID REFERENCES sessions(id) ON DELETE CASCADE,
+    message_id UUID REFERENCES messages(id) ON DELETE CASCADE,
+    pii_type VARCHAR(50) NOT NULL,
+    original_value TEXT NOT NULL,
+    anonymized_value TEXT NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+-- PII-Typen-Enum
+CREATE TYPE pii_type AS ENUM (
+    'name_person',
+    'name_company',
+    'address',
+    'email',
+    'phone',
+    'birthdate',
+    'account_number',
+    'iban',
+    'employee_id',
+    'credit_card',
+    'tax_id',
+    'custom'
+);
+
+-- Indexe für Performance
+CREATE INDEX IF NOT EXISTS idx_messages_session ON messages(session_id);
+CREATE INDEX IF NOT EXISTS idx_messages_created ON messages(created_at);
+CREATE INDEX IF NOT EXISTS idx_pii_session ON pii_mappings(session_id);
+CREATE INDEX IF NOT EXISTS idx_pii_message ON pii_mappings(message_id);
+CREATE INDEX IF NOT EXISTS idx_pii_anonymized ON pii_mappings(anonymized_value);
+
+-- Trigger für updated_at
+CREATE OR REPLACE FUNCTION update_updated_at_column()
+RETURNS TRIGGER AS $$
+BEGIN
+    NEW.updated_at = CURRENT_TIMESTAMP;
+    RETURN NEW;
+END;
+$$ language 'plpgsql';
+
+CREATE TRIGGER update_sessions_updated_at
+    BEFORE UPDATE ON sessions
+    FOR EACH ROW
+    EXECUTE FUNCTION update_updated_at_column();