Implement Software Upgrade Management API and Frontend Functionality
- Added software.php for managing software versions, including download and purchase actions. - Created upgrade_paths.php for handling upgrade paths management. - Developed user_licenses.php for managing user licenses. - Introduced version_access_rules.php for managing access rules for software versions. - Implemented frontend functions in functions.js for interacting with the software upgrade API. - Added version_access.php for user access validation and license management. - Created upgrades.php for displaying available upgrades and handling user interactions. - Enhanced UI with responsive design and progress indicators for downloads and purchases.
This commit is contained in:
“VeLiTi”
282
includes/version_access.php
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282
includes/version_access.php
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<?php
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function getUserOwnedVersions($userId) {
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global $pdo;
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$stmt = $pdo->prepare("
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SELECT sv.*, ul.license_key, ul.purchased_at
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FROM user_licenses ul
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JOIN software_versions sv ON ul.version_id = sv.id
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WHERE ul.user_id = ? AND ul.status = 'active'
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ORDER BY sv.major_version DESC, sv.minor_version DESC
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");
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$stmt->execute([$userId]);
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return $stmt->fetchAll(PDO::FETCH_ASSOC);
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}
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function getLatestOwnedVersion($userId) {
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$versions = getUserOwnedVersions($userId);
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return !empty($versions) ? $versions[0] : null;
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}
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function checkVersionAccess($userId, $versionId) {
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global $pdo;
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// Get version and its access rules
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$stmt = $pdo->prepare("
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SELECT sv.*, var.access_type, var.requires_base_version, var.price
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FROM software_versions sv
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JOIN version_access_rules var ON sv.id = var.version_id
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WHERE sv.id = ?
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");
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$stmt->execute([$versionId]);
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$version = $stmt->fetch(PDO::FETCH_ASSOC);
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if (!$version) {
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return ['accessible' => false, 'reason' => 'Version not found'];
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}
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switch ($version['access_type']) {
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case 'free_all':
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// Free for everyone (like v0.99)
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return [
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'accessible' => true,
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'reason' => 'free_for_all',
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'price' => 0.00,
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'requires_payment' => false
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];
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case 'free_for_owners':
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// Free for owners of required base version (like v1.1 for v1.0 owners)
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if ($version['requires_base_version']) {
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$hasBaseVersion = userOwnsVersion($userId, $version['requires_base_version']);
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if ($hasBaseVersion) {
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return [
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'accessible' => true,
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'reason' => 'free_upgrade',
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'price' => 0.00,
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'requires_payment' => false
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];
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} else {
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return [
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'accessible' => false,
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'reason' => 'requires_base_version',
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'required_version' => $version['requires_base_version'],
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'price' => $version['price'],
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'requires_payment' => true
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];
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}
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}
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return ['accessible' => false, 'reason' => 'invalid_access_rule'];
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case 'paid':
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case 'paid_upgrade':
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// Check if user already owns this version
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if (userOwnsVersionById($userId, $versionId)) {
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return [
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'accessible' => true,
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'reason' => 'already_owned',
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'price' => 0.00,
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'requires_payment' => false
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];
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}
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// Check for upgrade pricing
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$upgradeInfo = getUpgradePrice($userId, $versionId);
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return [
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'accessible' => false,
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'reason' => 'requires_purchase',
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'price' => $upgradeInfo['price'],
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'original_price' => $version['price'],
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'is_upgrade' => $upgradeInfo['is_upgrade'],
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'requires_payment' => true
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];
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default:
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return ['accessible' => false, 'reason' => 'unknown_access_type'];
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}
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}
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function userOwnsVersion($userId, $version) {
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global $pdo;
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$stmt = $pdo->prepare("
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SELECT COUNT(*)
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FROM user_licenses ul
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JOIN software_versions sv ON ul.version_id = sv.id
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WHERE ul.user_id = ? AND sv.version = ? AND ul.status = 'active'
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");
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$stmt->execute([$userId, $version]);
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return $stmt->fetchColumn() > 0;
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}
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function userOwnsVersionById($userId, $versionId) {
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global $pdo;
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$stmt = $pdo->prepare("
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SELECT COUNT(*)
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FROM user_licenses
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WHERE user_id = ? AND version_id = ? AND status = 'active'
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");
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$stmt->execute([$userId, $versionId]);
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return $stmt->fetchColumn() > 0;
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}
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function getUpgradePrice($userId, $targetVersionId) {
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global $pdo;
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// Get user's owned versions
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$ownedVersions = getUserOwnedVersions($userId);
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if (empty($ownedVersions)) {
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// No owned versions, return full price
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$stmt = $pdo->prepare("
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SELECT var.price
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FROM version_access_rules var
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WHERE var.version_id = ?
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");
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$stmt->execute([$targetVersionId]);
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$result = $stmt->fetch(PDO::FETCH_ASSOC);
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return [
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'price' => $result['price'] ?? 0.00,
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'is_upgrade' => false
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];
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}
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// Check for upgrade paths
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$bestUpgradePrice = null;
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$fromVersion = null;
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foreach ($ownedVersions as $ownedVersion) {
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$stmt = $pdo->prepare("
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SELECT upgrade_price, is_free
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FROM upgrade_paths
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WHERE from_version_id = ? AND to_version_id = ?
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");
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$stmt->execute([$ownedVersion['id'], $targetVersionId]);
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$upgrade = $stmt->fetch(PDO::FETCH_ASSOC);
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if ($upgrade) {
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if ($upgrade['is_free']) {
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return [
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'price' => 0.00,
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'is_upgrade' => true,
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'from_version' => $ownedVersion['version']
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];
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}
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if ($bestUpgradePrice === null || $upgrade['upgrade_price'] < $bestUpgradePrice) {
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$bestUpgradePrice = $upgrade['upgrade_price'];
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$fromVersion = $ownedVersion['version'];
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}
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}
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}
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if ($bestUpgradePrice !== null) {
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return [
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'price' => $bestUpgradePrice,
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'is_upgrade' => true,
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'from_version' => $fromVersion
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];
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}
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// No upgrade path, return full price
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$stmt = $pdo->prepare("
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SELECT var.price
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FROM version_access_rules var
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WHERE var.version_id = ?
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");
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$stmt->execute([$targetVersionId]);
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$result = $stmt->fetch(PDO::FETCH_ASSOC);
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return [
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'price' => $result['price'] ?? 0.00,
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'is_upgrade' => false
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];
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}
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function grantLicense($pdo, $userId, $versionId, $transactionId = null) {
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// Generate unique license key
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$licenseKey = generateLicenseKey($userId, $versionId);
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$stmt = $pdo->prepare("
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INSERT INTO user_licenses (user_id, version_id, license_key, transaction_id, status)
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VALUES (?, ?, ?, ?, 'active')
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ON DUPLICATE KEY UPDATE status = 'active', license_key = ?
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");
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return $stmt->execute([$userId, $versionId, $licenseKey, $transactionId, $licenseKey]);
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}
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function generateLicenseKey($userId, $versionId) {
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// Generate a unique license key
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$data = $userId . '-' . $versionId . '-' . time() . '-' . bin2hex(random_bytes(8));
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return strtoupper(substr(hash('sha256', $data), 0, 29)); // Format: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
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}
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function generateSecureDownloadToken($pdo, $userId, $versionId) {
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// Generate random token
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$token = bin2hex(random_bytes(32));
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// Store token with expiration (5 minutes)
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$expiresAt = date('Y-m-d H:i:s', time() + 300);
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$stmt = $pdo->prepare(
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"INSERT INTO download_tokens (token, user_id, version_id, expires_at, used)
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VALUES (?, ?, ?, ?, 0)"
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);
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$stmt->execute([$token, $userId, $versionId, $expiresAt]);
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return $token;
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}
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function validateUserAccess($userId, $versionId) {
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global $pdo;
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// Check if version requires payment
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$stmt = $pdo->prepare("
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SELECT var.access_type
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FROM version_access_rules var
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WHERE var.version_id = ?
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");
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$stmt->execute([$versionId]);
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$accessRule = $stmt->fetch(PDO::FETCH_ASSOC);
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if (!$accessRule) {
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return false;
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}
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if ($accessRule['access_type'] === 'free_all') {
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return true; // Free for everyone
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}
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// Check if user has valid license
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$stmt = $pdo->prepare(
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"SELECT COUNT(*) FROM user_licenses
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WHERE user_id = ? AND version_id = ? AND status = 'active'"
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);
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$stmt->execute([$userId, $versionId]);
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return $stmt->fetchColumn() > 0;
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}
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function logDownload($pdo, $userId, $versionId) {
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$stmt = $pdo->prepare("
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INSERT INTO download_logs (user_id, version_id, ip_address, user_agent, downloaded_at)
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VALUES (?, ?, ?, ?, NOW())
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");
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$stmt->execute([
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$userId,
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$versionId,
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$_SERVER['REMOTE_ADDR'] ?? '',
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$_SERVER['HTTP_USER_AGENT'] ?? ''
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]);
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}
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?>
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