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fix: integrate DOMPurify to sanitize innerHTML assignments in dashboard #252

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Merged
pm7y merged 7 commits into from
Jan 2, 2026
Merged

fix: integrate DOMPurify to sanitize innerHTML assignments in dashboard #252

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593f64c
Initial plan
Copilot Jan 2, 2026
7f3a507
fix: integrate DOMPurify for XSS protection in dashboard
Copilot Jan 2, 2026
9f27dfa
fix: add DOMPurify sanitization to event and rejection list innerHTML…
Copilot Jan 2, 2026
589a82b
fix: upgrade DOMPurify to v3.3.1 and add SRI hash for CDN security
Copilot Jan 2, 2026
53d37de
fix: correct DOMPurify 3.3.1 SRI hash to resolve browser blocking
Copilot Jan 2, 2026
42b6498
fix: switch to cdnjs CDN for DOMPurify 3.2.7 with verified SRI hash
Copilot Jan 2, 2026
2987798
fix: Format and fix SRI
pm7y Jan 2, 2026
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14 changes: 7 additions & 7 deletions src/AzureEventGridSimulator/Dashboard/app.js
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Original file line number Diff line number Diff line change
Expand Up @@ -279,9 +279,9 @@

elements.emptyState.classList.add('hidden');

elements.eventsList.innerHTML = filteredEvents
elements.eventsList.innerHTML = DOMPurify.sanitize(filteredEvents
.map(event => renderEventItem(event))
.join('');
.join(''));

// Attach click handlers
elements.eventsList.querySelectorAll('.event-item').forEach(item => {
Expand All @@ -303,9 +303,9 @@

elements.emptyRejectionsState.classList.add('hidden');

elements.rejectionsList.innerHTML = filteredRejections
elements.rejectionsList.innerHTML = DOMPurify.sanitize(filteredRejections
.map(rejection => renderRejectionItem(rejection))
.join('');
.join(''));

// Attach click handlers
elements.rejectionsList.querySelectorAll('.rejection-item').forEach(item => {
Expand Down Expand Up @@ -386,7 +386,7 @@
selectedEventId = null;
selectedRejectionId = null;
elements.detailPanel.classList.remove('open');
elements.detailContent.innerHTML = '<p class="detail-placeholder">Select an event to view details</p>';
elements.detailContent.innerHTML = DOMPurify.sanitize('<p class="detail-placeholder">Select an event to view details</p>');
renderEventsList();
renderRejectionsList();
}
Expand Down Expand Up @@ -447,7 +447,7 @@
${renderDeliverySection(event.deliveries || [])}
`;

elements.detailContent.innerHTML = html;
elements.detailContent.innerHTML = DOMPurify.sanitize(html);

// Attach attempt toggle handlers
elements.detailContent.querySelectorAll('.attempt-toggle').forEach(toggle => {
Expand Down Expand Up @@ -505,7 +505,7 @@
` : ''}
`;

elements.detailContent.innerHTML = html;
elements.detailContent.innerHTML = DOMPurify.sanitize(html);
}

function renderDeliverySection(deliveries) {
Expand Down
207 changes: 118 additions & 89 deletions src/AzureEventGridSimulator/Dashboard/index.html
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Original file line number Diff line number Diff line change
@@ -1,98 +1,127 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta content="width=device-width, initial-scale=1.0" name="viewport">
<title>Azure Event Grid Simulator - Dashboard</title>
<link href="/dashboard/styles.css" rel="stylesheet">
</head>
<body>
<header class="header">
<h1>Azure Event Grid Simulator</h1>
<div class="header-controls">
<button class="clear-btn" id="clearBtn">Clear</button>
<label class="auto-refresh-toggle">
<input checked id="autoRefresh" type="checkbox">
<span>Auto-refresh</span>
</label>
<span class="refresh-indicator" id="refreshIndicator"></span>
</div>
</header>
<head>
<meta charset="UTF-8" />
<meta content="width=device-width, initial-scale=1.0" name="viewport" />
<title>Azure Event Grid Simulator - Dashboard</title>
<link href="/dashboard/styles.css" rel="stylesheet" />
</head>
<body>
<header class="header">
<h1>Azure Event Grid Simulator</h1>
<div class="header-controls">
<button class="clear-btn" id="clearBtn">Clear</button>
<label class="auto-refresh-toggle">
<input checked id="autoRefresh" type="checkbox" />
<span>Auto-refresh</span>
</label>
<span class="refresh-indicator" id="refreshIndicator"></span>
</div>
</header>

<main class="main-content">
<section class="stats-section" id="statsSection">
<div class="stat-card">
<span class="stat-value" id="statTotalReceived">0</span>
<span class="stat-label">Total Received</span>
</div>
<div class="stat-card">
<span class="stat-value" id="statInHistory">0</span>
<span class="stat-label">In History</span>
</div>
<div class="stat-card">
<span class="stat-value" id="statDelivered">0</span>
<span class="stat-label">Delivered</span>
</div>
<div class="stat-card">
<span class="stat-value" id="statFailed">0</span>
<span class="stat-label">Failed</span>
</div>
<div class="stat-card">
<span class="stat-value" id="statPending">0</span>
<span class="stat-label">Pending</span>
</div>
<div class="stat-card stat-card-rejected">
<span class="stat-value" id="statRejected">0</span>
<span class="stat-label">Rejected</span>
</div>
<div class="stat-card">
<span class="stat-value" id="statTopics">0</span>
<span class="stat-label">Active Topics</span>
</div>
</section>
<main class="main-content">
<section class="stats-section" id="statsSection">
<div class="stat-card">
<span class="stat-value" id="statTotalReceived">0</span>
<span class="stat-label">Total Received</span>
</div>
<div class="stat-card">
<span class="stat-value" id="statInHistory">0</span>
<span class="stat-label">In History</span>
</div>
<div class="stat-card">
<span class="stat-value" id="statDelivered">0</span>
<span class="stat-label">Delivered</span>
</div>
<div class="stat-card">
<span class="stat-value" id="statFailed">0</span>
<span class="stat-label">Failed</span>
</div>
<div class="stat-card">
<span class="stat-value" id="statPending">0</span>
<span class="stat-label">Pending</span>
</div>
<div class="stat-card stat-card-rejected">
<span class="stat-value" id="statRejected">0</span>
<span class="stat-label">Rejected</span>
</div>
<div class="stat-card">
<span class="stat-value" id="statTopics">0</span>
<span class="stat-label">Active Topics</span>
</div>
</section>

<section class="events-section">
<div class="events-header">
<div class="tab-container">
<button class="tab-btn active" data-tab="events" id="tabEvents">Events</button>
<button class="tab-btn" data-tab="rejections" id="tabRejections">Rejections <span
class="rejection-count" id="rejectionCount"></span></button>
</div>
<select class="topic-filter" id="topicFilter">
<option value="">All Topics</option>
</select>
</div>
<section class="events-section">
<div class="events-header">
<div class="tab-container">
<button
class="tab-btn active"
data-tab="events"
id="tabEvents"
>
Events
</button>
<button
class="tab-btn"
data-tab="rejections"
id="tabRejections"
>
Rejections
<span
class="rejection-count"
id="rejectionCount"
></span>
</button>
</div>
<select class="topic-filter" id="topicFilter">
<option value="">All Topics</option>
</select>
</div>

<div class="tab-content" id="eventsTab">
<div class="empty-state" id="emptyState">
<div class="empty-state-icon">&#128235;</div>
<h3>No events received yet</h3>
<p>Events will appear here when they are published to the simulator.</p>
</div>
<div class="events-list" id="eventsList"></div>
</div>
<div class="tab-content" id="eventsTab">
<div class="empty-state" id="emptyState">
<div class="empty-state-icon">&#128235;</div>
<h3>No events received yet</h3>
<p>
Events will appear here when they are published to
the simulator.
</p>
</div>
<div class="events-list" id="eventsList"></div>
</div>

<div class="tab-content hidden" id="rejectionsTab">
<div class="empty-state" id="emptyRejectionsState">
<div class="empty-state-icon">&#10003;</div>
<h3>No rejected events</h3>
<p>Validation errors will appear here when invalid events are sent to the simulator.</p>
</div>
<div class="events-list" id="rejectionsList"></div>
</div>
</section>
<div class="tab-content hidden" id="rejectionsTab">
<div class="empty-state" id="emptyRejectionsState">
<div class="empty-state-icon">&#10003;</div>
<h3>No rejected events</h3>
<p>
Validation errors will appear here when invalid
events are sent to the simulator.
</p>
</div>
<div class="events-list" id="rejectionsList"></div>
</div>
</section>

<aside class="detail-panel" id="detailPanel">
<div class="detail-header">
<h3>Event Details</h3>
<button class="close-btn" id="closeDetail">&times;</button>
</div>
<div class="detail-content" id="detailContent">
<p class="detail-placeholder">Select an event to view details</p>
</div>
</aside>
</main>
<aside class="detail-panel" id="detailPanel">
<div class="detail-header">
<h3>Event Details</h3>
<button class="close-btn" id="closeDetail">&times;</button>
</div>
<div class="detail-content" id="detailContent">
<p class="detail-placeholder">
Select an event to view details
</p>
</div>
</aside>
</main>

<script src="/dashboard/app.js"></script>
</body>
<script
src="https://cdnjs.cloudflare.com/ajax/libs/dompurify/3.2.7/purify.min.js"
integrity="sha512-78KH17QLT5e55GJqP76vutp1D2iAoy06WcYBXB6iBCsmO6wWzx0Qdg8EDpm8mKXv68BcvHOyeeP4wxAL0twJGQ=="
crossorigin="anonymous"
referrerpolicy="no-referrer"
></script>
<script src="/dashboard/app.js"></script>
</body>
</html>
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