Andy Dixon
ae9348c0ad
Header names arrive lowercase over HTTP/2 (the nginx front end enables it) and Apache preserves that case, so the X-GitHub-Event lookup missed and every email reported "Unknown". Normalise header keys once.
224 lines
9.8 KiB
PHP
224 lines
9.8 KiB
PHP
<?php
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/**
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* GitHub Webhook Parser
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* Parses GitHub webhook events into a formatted email
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*
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* @param string $rawBody The raw request body
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* @param array $headers The request headers
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* @param array $metadata Request metadata (date, ip, method, contentType)
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* @return array|false Array with 'html' and 'subject' keys, or false on failure
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*/
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function githubParse($rawBody, $headers, $metadata) {
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$payload = json_decode($rawBody, true);
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if (!$payload) {
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return false;
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}
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// Header names arrive lowercase over HTTP/2, so match case-insensitively
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$headers = array_change_key_case($headers, CASE_LOWER);
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$event = $headers['x-github-event'] ?? 'Unknown';
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$delivery = $headers['x-github-delivery'] ?? 'Unknown';
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// Extract common data
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$action = $payload['action'] ?? null;
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$repository = $payload['repository']['full_name'] ?? 'Unknown';
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$sender = $payload['sender']['login'] ?? 'Unknown';
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// Sanitize for HTML
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$eventSafe = htmlspecialchars($event, ENT_QUOTES, 'UTF-8');
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$actionSafe = $action ? htmlspecialchars($action, ENT_QUOTES, 'UTF-8') : null;
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$repoSafe = htmlspecialchars($repository, ENT_QUOTES, 'UTF-8');
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$senderSafe = htmlspecialchars($sender, ENT_QUOTES, 'UTF-8');
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$dateSafe = htmlspecialchars($metadata['date'], ENT_QUOTES, 'UTF-8');
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$ipSafe = htmlspecialchars($metadata['ip'], ENT_QUOTES, 'UTF-8');
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// Build event-specific content
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$eventContent = '';
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$eventIcon = '🔔';
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switch ($event) {
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case 'push':
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$eventIcon = '📤';
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$ref = htmlspecialchars($payload['ref'] ?? 'Unknown', ENT_QUOTES, 'UTF-8');
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$commits = $payload['commits'] ?? [];
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$commitCount = count($commits);
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$eventContent = <<<HTML
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<div class="section">
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<div class="section-title">Push Details</div>
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<div class="metadata">
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<div class="metadata-row">
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<div class="metadata-label">Branch</div>
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<div class="metadata-value">$ref</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">Commits</div>
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<div class="metadata-value">$commitCount</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">Pusher</div>
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<div class="metadata-value">$senderSafe</div>
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</div>
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</div>
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</div>
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HTML;
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if ($commitCount > 0) {
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$eventContent .= '<div class="section"><div class="section-title">Commits</div>';
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foreach (array_slice($commits, 0, 10) as $commit) {
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$message = htmlspecialchars($commit['message'] ?? '', ENT_QUOTES, 'UTF-8');
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$author = htmlspecialchars($commit['author']['name'] ?? 'Unknown', ENT_QUOTES, 'UTF-8');
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$sha = htmlspecialchars(substr($commit['id'] ?? '', 0, 7), ENT_QUOTES, 'UTF-8');
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$eventContent .= "<div class=\"commit-item\"><strong>$sha</strong> $message <em>by $author</em></div>";
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}
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$eventContent .= '</div>';
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}
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break;
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case 'pull_request':
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$eventIcon = '🔀';
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$pr = $payload['pull_request'] ?? [];
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$prNumber = htmlspecialchars($pr['number'] ?? 'N/A', ENT_QUOTES, 'UTF-8');
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$prTitle = htmlspecialchars($pr['title'] ?? 'N/A', ENT_QUOTES, 'UTF-8');
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$prUrl = htmlspecialchars($pr['html_url'] ?? '#', ENT_QUOTES, 'UTF-8');
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$prState = htmlspecialchars($pr['state'] ?? 'N/A', ENT_QUOTES, 'UTF-8');
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$prBase = htmlspecialchars($pr['base']['ref'] ?? 'N/A', ENT_QUOTES, 'UTF-8');
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$prHead = htmlspecialchars($pr['head']['ref'] ?? 'N/A', ENT_QUOTES, 'UTF-8');
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$eventContent = <<<HTML
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<div class="section">
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<div class="section-title">Pull Request Details</div>
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<div class="metadata">
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<div class="metadata-row">
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<div class="metadata-label">Number</div>
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<div class="metadata-value">#$prNumber</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">Title</div>
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<div class="metadata-value">$prTitle</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">State</div>
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<div class="metadata-value">$prState</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">Branch</div>
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<div class="metadata-value">$prHead → $prBase</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">URL</div>
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<div class="metadata-value"><a href="$prUrl" style="color: #7c3aed;">$prUrl</a></div>
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</div>
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</div>
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</div>
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HTML;
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break;
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case 'issues':
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$eventIcon = '📝';
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$issue = $payload['issue'] ?? [];
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$issueNumber = htmlspecialchars($issue['number'] ?? 'N/A', ENT_QUOTES, 'UTF-8');
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$issueTitle = htmlspecialchars($issue['title'] ?? 'N/A', ENT_QUOTES, 'UTF-8');
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$issueUrl = htmlspecialchars($issue['html_url'] ?? '#', ENT_QUOTES, 'UTF-8');
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$issueState = htmlspecialchars($issue['state'] ?? 'N/A', ENT_QUOTES, 'UTF-8');
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$eventContent = <<<HTML
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<div class="section">
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<div class="section-title">Issue Details</div>
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<div class="metadata">
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<div class="metadata-row">
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<div class="metadata-label">Number</div>
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<div class="metadata-value">#$issueNumber</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">Title</div>
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<div class="metadata-value">$issueTitle</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">State</div>
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<div class="metadata-value">$issueState</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">URL</div>
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<div class="metadata-value"><a href="$issueUrl" style="color: #7c3aed;">$issueUrl</a></div>
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</div>
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</div>
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</div>
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HTML;
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break;
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case 'release':
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$eventIcon = '🚀';
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$release = $payload['release'] ?? [];
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$tagName = htmlspecialchars($release['tag_name'] ?? 'N/A', ENT_QUOTES, 'UTF-8');
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$releaseName = htmlspecialchars($release['name'] ?? 'N/A', ENT_QUOTES, 'UTF-8');
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$releaseUrl = htmlspecialchars($release['html_url'] ?? '#', ENT_QUOTES, 'UTF-8');
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$eventContent = <<<HTML
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<div class="section">
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<div class="section-title">Release Details</div>
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<div class="metadata">
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<div class="metadata-row">
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<div class="metadata-label">Tag</div>
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<div class="metadata-value">$tagName</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">Name</div>
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<div class="metadata-value">$releaseName</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">URL</div>
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<div class="metadata-value"><a href="$releaseUrl" style="color: #7c3aed;">$releaseUrl</a></div>
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</div>
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</div>
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</div>
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HTML;
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break;
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default:
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// Generic event display - render as structured tables
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$eventContent = '<div class="section"><div class="section-title">Event Details</div>';
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$eventContent .= renderDataAsTable($payload);
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$eventContent .= '</div>';
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}
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$actionDisplay = $actionSafe ? " ($actionSafe)" : '';
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$emailTitle = "$eventIcon GitHub: $eventSafe$actionDisplay";
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$emailStamp = "$dateSafe";
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$body = <<<HTML
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<div class="section">
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<div class="section-title">📋 Repository Information</div>
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<div class="metadata">
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<div class="metadata-row">
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<div class="metadata-label">Repository</div>
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<div class="metadata-value">$repoSafe</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">Event</div>
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<div class="metadata-value">$eventSafe</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">Sender</div>
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<div class="metadata-value">$senderSafe</div>
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</div>
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<div class="metadata-row">
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<div class="metadata-label">IP Address</div>
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<div class="metadata-value">$ipSafe</div>
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</div>
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</div>
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</div>
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$eventContent
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HTML;
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$html = emailShell($emailTitle, $emailStamp, $body, "This GitHub webhook was automatically forwarded to your email address.");
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$subject = "$eventIcon GitHub $eventSafe$actionDisplay - $repoSafe";
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return [
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'html' => $html,
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'subject' => $subject
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];
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}
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