From 33c381be189fe399c7e0f556acca4bb3a0ee27b1 Mon Sep 17 00:00:00 2001
From: Lukas Davidovic <davidovic@neopixel.sk>
Date: Mon, 8 May 2023 18:52:45 +0200
Subject: [PATCH] add database

---
 database/antihoax.db | Bin 0 -> 176128 bytes
 database/schema.sql  | 288 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 288 insertions(+)
 create mode 100644 database/antihoax.db
 create mode 100644 database/schema.sql

diff --git a/database/antihoax.db b/database/antihoax.db
new file mode 100644
index 0000000000000000000000000000000000000000..3075b0a3c9ba2d60fd911b88ec852304be77b66f
GIT binary patch
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diff --git a/database/schema.sql b/database/schema.sql
new file mode 100644
index 0000000..54e9918
--- /dev/null
+++ b/database/schema.sql
@@ -0,0 +1,288 @@
+-- Antihoax Database Schema
+-- SQLite adaptation of PostgreSQL 15+ schema
+
+-- Drop existing tables (for clean migration)
+DROP TABLE IF EXISTS source_categories;
+DROP TABLE IF EXISTS reports;
+DROP TABLE IF EXISTS sources;
+DROP TABLE IF EXISTS categories;
+DROP TABLE IF EXISTS users;
+DROP TABLE IF EXISTS api_keys;
+
+-- Users table (admins, moderators)
+CREATE TABLE users (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    email VARCHAR(255) UNIQUE NOT NULL,
+    password_hash VARCHAR(255) NOT NULL,
+    name VARCHAR(100) NOT NULL,
+    role VARCHAR(20) DEFAULT 'moderator' CHECK (role IN ('admin', 'moderator')),
+    is_active BOOLEAN DEFAULT 1,
+    last_login DATETIME NULL,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Categories table
+CREATE TABLE categories (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name VARCHAR(100) UNIQUE NOT NULL,
+    slug VARCHAR(100) UNIQUE NOT NULL,
+    description TEXT,
+    color VARCHAR(7) DEFAULT '#6B7280', -- hex color
+    priority INTEGER DEFAULT 1 CHECK (priority BETWEEN 1 AND 5),
+    icon VARCHAR(50), -- lucide icon name
+    is_active BOOLEAN DEFAULT 1,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Sources table (main problematic websites/pages)
+CREATE TABLE sources (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    url VARCHAR(1000) UNIQUE NOT NULL,
+    domain VARCHAR(255) NOT NULL,
+    title VARCHAR(500),
+    description TEXT,
+    type VARCHAR(50) NOT NULL CHECK (type IN ('website', 'facebook_page', 'facebook_group', 'instagram', 'blog', 'news_site', 'youtube', 'tiktok', 'telegram', 'other')),
+    status VARCHAR(20) DEFAULT 'pending' CHECK (status IN ('pending', 'verified', 'rejected', 'under_review')),
+    risk_level INTEGER DEFAULT 1 CHECK (risk_level BETWEEN 1 AND 5),
+    language VARCHAR(5) DEFAULT 'sk' CHECK (language IN ('sk', 'cs', 'en', 'other')),
+    evidence_urls TEXT, -- JSON array of proof URLs
+    reported_by VARCHAR(255), -- email or name
+    verified_by INTEGER REFERENCES users(id),
+    rejection_reason TEXT,
+    follower_count INTEGER DEFAULT 0,
+    last_checked DATETIME,
+    metadata TEXT DEFAULT '{}', -- JSON data
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Junction table for many-to-many relationship between sources and categories
+CREATE TABLE source_categories (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    source_id INTEGER NOT NULL REFERENCES sources(id) ON DELETE CASCADE,
+    category_id INTEGER NOT NULL REFERENCES categories(id) ON DELETE CASCADE,
+    confidence_score DECIMAL(3,2) DEFAULT 1.0 CHECK (confidence_score BETWEEN 0 AND 1),
+    added_by INTEGER REFERENCES users(id),
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    UNIQUE(source_id, category_id)
+);
+
+-- Reports table (user submissions)
+CREATE TABLE reports (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    source_url VARCHAR(1000) NOT NULL,
+    source_domain VARCHAR(255) NOT NULL,
+    reporter_email VARCHAR(255),
+    reporter_name VARCHAR(100),
+    category_suggestions TEXT, -- JSON array of category IDs
+    description TEXT NOT NULL,
+    evidence_urls TEXT, -- JSON array: screenshots, articles, etc.
+    priority VARCHAR(20) DEFAULT 'medium' CHECK (priority IN ('low', 'medium', 'high', 'urgent')),
+    status VARCHAR(20) DEFAULT 'pending' CHECK (status IN ('pending', 'in_review', 'approved', 'rejected', 'duplicate')),
+    assigned_to INTEGER REFERENCES users(id),
+    admin_notes TEXT,
+    processed_at DATETIME NULL,
+    ip_address VARCHAR(45), -- IPv4 or IPv6
+    user_agent TEXT,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- API Keys table (for external access)
+CREATE TABLE api_keys (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    key_hash VARCHAR(255) UNIQUE NOT NULL,
+    name VARCHAR(100) NOT NULL,
+    description TEXT,
+    owner_email VARCHAR(255) NOT NULL,
+    permissions TEXT DEFAULT '["read"]', -- JSON array
+    rate_limit INTEGER DEFAULT 1000, -- requests per hour
+    is_active BOOLEAN DEFAULT 1,
+    usage_count INTEGER DEFAULT 0,
+    last_used DATETIME NULL,
+    expires_at DATETIME NULL,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Indexes for performance
+CREATE INDEX idx_sources_domain ON sources(domain);
+CREATE INDEX idx_sources_status ON sources(status);
+CREATE INDEX idx_sources_risk_level ON sources(risk_level);
+CREATE INDEX idx_sources_type ON sources(type);
+CREATE INDEX idx_sources_created_at ON sources(created_at);
+CREATE INDEX idx_sources_verified_by ON sources(verified_by);
+
+CREATE INDEX idx_reports_status ON reports(status);
+CREATE INDEX idx_reports_source_domain ON reports(source_domain);
+CREATE INDEX idx_reports_priority ON reports(priority);
+CREATE INDEX idx_reports_created_at ON reports(created_at);
+CREATE INDEX idx_reports_assigned_to ON reports(assigned_to);
+
+CREATE INDEX idx_categories_slug ON categories(slug);
+CREATE INDEX idx_categories_priority ON categories(priority);
+
+CREATE INDEX idx_source_categories_source_id ON source_categories(source_id);
+CREATE INDEX idx_source_categories_category_id ON source_categories(category_id);
+
+CREATE INDEX idx_api_keys_hash ON api_keys(key_hash);
+CREATE INDEX idx_api_keys_owner ON api_keys(owner_email);
+
+-- SQLite FTS indexes (using FTS5)
+CREATE VIRTUAL TABLE sources_fts USING fts5(
+    title, 
+    description, 
+    content='sources', 
+    content_rowid='id'
+);
+
+CREATE VIRTUAL TABLE reports_fts USING fts5(
+    description, 
+    content='reports', 
+    content_rowid='id'
+);
+
+-- Triggers to keep FTS in sync
+CREATE TRIGGER sources_fts_insert AFTER INSERT ON sources BEGIN
+    INSERT INTO sources_fts(rowid, title, description) 
+    VALUES (new.id, new.title, new.description);
+END;
+
+CREATE TRIGGER sources_fts_update AFTER UPDATE ON sources BEGIN
+    UPDATE sources_fts SET title = new.title, description = new.description 
+    WHERE rowid = new.id;
+END;
+
+CREATE TRIGGER sources_fts_delete AFTER DELETE ON sources BEGIN
+    DELETE FROM sources_fts WHERE rowid = old.id;
+END;
+
+CREATE TRIGGER reports_fts_insert AFTER INSERT ON reports BEGIN
+    INSERT INTO reports_fts(rowid, description) 
+    VALUES (new.id, new.description);
+END;
+
+CREATE TRIGGER reports_fts_update AFTER UPDATE ON reports BEGIN
+    UPDATE reports_fts SET description = new.description 
+    WHERE rowid = new.id;
+END;
+
+CREATE TRIGGER reports_fts_delete AFTER DELETE ON reports BEGIN
+    DELETE FROM reports_fts WHERE rowid = old.id;
+END;
+
+-- Triggers for updated_at (SQLite version)
+CREATE TRIGGER update_users_updated_at 
+    AFTER UPDATE ON users FOR EACH ROW 
+    BEGIN 
+        UPDATE users SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
+    END;
+
+CREATE TRIGGER update_sources_updated_at 
+    AFTER UPDATE ON sources FOR EACH ROW 
+    BEGIN 
+        UPDATE sources SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
+    END;
+
+CREATE TRIGGER update_categories_updated_at 
+    AFTER UPDATE ON categories FOR EACH ROW 
+    BEGIN 
+        UPDATE categories SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
+    END;
+
+CREATE TRIGGER update_reports_updated_at 
+    AFTER UPDATE ON reports FOR EACH ROW 
+    BEGIN 
+        UPDATE reports SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
+    END;
+
+CREATE TRIGGER update_api_keys_updated_at 
+    AFTER UPDATE ON api_keys FOR EACH ROW 
+    BEGIN 
+        UPDATE api_keys SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
+    END;
+
+-- Trigger to auto-populate domain field
+CREATE TRIGGER set_sources_domain 
+    BEFORE INSERT ON sources FOR EACH ROW 
+    BEGIN 
+        UPDATE sources SET domain = CASE 
+            WHEN NEW.url LIKE 'http%://www.%' THEN substr(NEW.url, instr(NEW.url, '://www.') + 7, instr(substr(NEW.url, instr(NEW.url, '://www.') + 7), '/') - 1)
+            WHEN NEW.url LIKE 'http%://%' THEN substr(NEW.url, instr(NEW.url, '://') + 3, instr(substr(NEW.url, instr(NEW.url, '://') + 3), '/') - 1)
+            ELSE NEW.url
+        END WHERE id = NEW.id;
+    END;
+
+CREATE TRIGGER set_reports_domain 
+    BEFORE INSERT ON reports FOR EACH ROW 
+    BEGIN 
+        UPDATE reports SET source_domain = CASE 
+            WHEN NEW.source_url LIKE 'http%://www.%' THEN substr(NEW.source_url, instr(NEW.source_url, '://www.') + 7, instr(substr(NEW.source_url, instr(NEW.source_url, '://www.') + 7), '/') - 1)
+            WHEN NEW.source_url LIKE 'http%://%' THEN substr(NEW.source_url, instr(NEW.source_url, '://') + 3, instr(substr(NEW.source_url, instr(NEW.source_url, '://') + 3), '/') - 1)
+            ELSE NEW.source_url
+        END WHERE id = NEW.id;
+    END;
+
+-- Insert default categories
+INSERT INTO categories (name, slug, description, color, priority, icon) VALUES 
+('Hoax', 'hoax', 'Šírenie nepravdivých informácií a hoaxov', '#EF4444', 5, 'AlertTriangle'),
+('Hate Speech', 'hate-speech', 'Nenávistné prejavy proti skupinám ľudí', '#DC2626', 5, 'MessageSquareX'),
+('Violence', 'violence', 'Povzbudzovanie k násiliu', '#B91C1C', 5, 'Sword'),
+('Racism', 'racism', 'Rasistické a diskriminačné obsahy', '#991B1B', 5, 'Users'),
+('Conspiracy', 'conspiracy', 'Konšpiračné teórie', '#F59E0B', 3, 'Eye'),
+('Propaganda', 'propaganda', 'Politická propaganda a manipulácia', '#D97706', 2, 'Megaphone'),
+('Spam', 'spam', 'Spam a podvodné obsahy', '#6B7280', 1, 'Mail'),
+('Extremism', 'extremism', 'Extrémistické ideológie', '#7C2D12', 5, 'Flame'),
+('Medical Misinformation', 'medical-misinfo', 'Nepravdivé zdravotné informácie', '#EA580C', 4, 'Heart'),
+('Financial Scam', 'financial-scam', 'Finančné podvody a pyramid schemes', '#C2410C', 4, 'DollarSign');
+
+-- Insert default admin user (password: admin123 - change in production!)
+INSERT INTO users (email, password_hash, name, role) VALUES 
+('admin@antihoax.sk', '$2b$12$LQv3c1yqBWVHxkd0LHAkCOYz6TtxMQJqhN8/LewLON5QhMlPsJiTi', 'System Admin', 'admin');
+
+-- Insert some example API key (for testing)
+INSERT INTO api_keys (key_hash, name, description, owner_email, permissions, rate_limit) VALUES 
+('$2b$12$example_hash_here', 'Chrome Extension', 'API key for browser extension', 'extension@antihoax.sk', '["read"]', 10000);
+
+-- Views for easier querying (SQLite compatible)
+
+-- View: Sources with categories
+CREATE VIEW sources_with_categories AS
+SELECT 
+    s.*,
+    GROUP_CONCAT(c.name) as category_names,
+    GROUP_CONCAT(c.slug) as category_slugs,
+    GROUP_CONCAT(c.color) as category_colors
+FROM sources s
+LEFT JOIN source_categories sc ON s.id = sc.source_id
+LEFT JOIN categories c ON sc.category_id = c.id AND c.is_active = 1
+WHERE s.status = 'verified'
+GROUP BY s.id;
+
+-- View: Dashboard statistics
+CREATE VIEW dashboard_stats AS
+SELECT 
+    (SELECT COUNT(*) FROM sources WHERE status = 'verified') as total_sources,
+    (SELECT COUNT(*) FROM sources WHERE status = 'pending') as pending_sources,
+    (SELECT COUNT(*) FROM reports WHERE status = 'pending') as pending_reports,
+    (SELECT COUNT(*) FROM sources WHERE status = 'verified' AND risk_level >= 4) as high_risk_sources,
+    (SELECT COUNT(*) FROM sources WHERE created_at > datetime('now', '-7 days')) as sources_added_week,
+    (SELECT COUNT(*) FROM reports WHERE created_at > datetime('now', '-1 day')) as reports_today;
+
+-- View: Top risky domains
+CREATE VIEW top_risky_domains AS
+SELECT 
+    domain,
+    COUNT(*) as source_count,
+    AVG(risk_level) as avg_risk_level,
+    MAX(risk_level) as max_risk_level,
+    GROUP_CONCAT(DISTINCT c.name) as categories
+FROM sources s
+LEFT JOIN source_categories sc ON s.id = sc.source_id
+LEFT JOIN categories c ON sc.category_id = c.id
+WHERE s.status = 'verified'
+GROUP BY domain
+HAVING AVG(risk_level) >= 3
+ORDER BY avg_risk_level DESC, source_count DESC;
\ No newline at end of file