452 lines
21 KiB
HTML
452 lines
21 KiB
HTML
{% extends "base.html" %}
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{% block title %}Encode Message - Stegasoo{% endblock %}
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{% block content %}
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<div class="row justify-content-center">
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<div class="col-lg-8">
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<div class="card">
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<div class="card-header">
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<h5 class="mb-0"><i class="bi bi-lock-fill me-2"></i>Encode Secret Message or File</h5>
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</div>
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<div class="card-body">
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<form method="POST" enctype="multipart/form-data" id="encodeForm">
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<input type="hidden" name="client_date" id="clientDate" value="">
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<div class="row">
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<div class="col-md-6 mb-3">
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<label class="form-label">
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<i class="bi bi-image me-1"></i> Reference Photo
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</label>
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<div class="drop-zone" id="refDropZone">
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<input type="file" name="reference_photo" accept="image/*" required>
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<div class="drop-zone-label">
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<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i>
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<span class="text-muted">Drop image or click to browse</span>
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</div>
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<img class="drop-zone-preview d-none" id="refPreview">
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</div>
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<div class="form-text">
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The secret photo both parties have (NOT transmitted)
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</div>
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</div>
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<div class="col-md-6 mb-3">
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<label class="form-label">
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<i class="bi bi-file-image me-1"></i> Carrier Image
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</label>
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<div class="drop-zone" id="carrierDropZone">
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<input type="file" name="carrier" accept="image/*" required>
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<div class="drop-zone-label">
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<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i>
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<span class="text-muted">Drop image or click to browse</span>
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</div>
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<img class="drop-zone-preview d-none" id="carrierPreview">
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</div>
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<div class="form-text">
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The image to hide your message in (e.g., a meme)
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</div>
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</div>
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</div>
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<!-- Payload Type Selector -->
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<div class="mb-3">
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<label class="form-label">
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<i class="bi bi-box me-1"></i> What to Encode
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</label>
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<div class="btn-group w-100" role="group">
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<input type="radio" class="btn-check" name="payload_type" id="payloadText" value="text" checked>
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<label class="btn btn-outline-primary" for="payloadText">
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<i class="bi bi-chat-left-text me-1"></i> Text Message
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</label>
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<input type="radio" class="btn-check" name="payload_type" id="payloadFile" value="file">
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<label class="btn btn-outline-primary" for="payloadFile">
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<i class="bi bi-file-earmark me-1"></i> File
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</label>
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</div>
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</div>
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<!-- Text Message Input -->
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<div class="mb-3" id="textPayloadSection">
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<label class="form-label">
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<i class="bi bi-chat-left-text me-1"></i> Secret Message
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</label>
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<textarea name="message" class="form-control" rows="4" id="messageInput"
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placeholder="Enter your secret message here..."></textarea>
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<div class="d-flex justify-content-between form-text">
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<span>
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<span id="charCount">0</span> / 250,000 characters
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<span id="charWarning" class="text-warning d-none ms-2">
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<i class="bi bi-exclamation-triangle"></i> Getting long!
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</span>
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</span>
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<span id="charPercent" class="text-muted">0%</span>
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</div>
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</div>
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<!-- File Upload Input -->
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<div class="mb-3 d-none" id="filePayloadSection">
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<label class="form-label">
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<i class="bi bi-file-earmark me-1"></i> File to Embed
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</label>
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<div class="drop-zone" id="payloadDropZone">
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<input type="file" name="payload_file" id="payloadFileInput">
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<div class="drop-zone-label" id="payloadDropLabel">
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<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i>
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<span class="text-muted">Drop any file or click to browse</span>
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<div class="small text-muted mt-1">Max {{ max_payload_kb }} KB</div>
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</div>
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</div>
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<div class="form-text">
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Supports any file type: PDF, ZIP, documents, etc.
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</div>
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<div id="fileInfo" class="d-none mt-2 p-2 bg-dark rounded">
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<i class="bi bi-file-earmark-check text-success me-2"></i>
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<span id="fileInfoName"></span>
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<span class="text-muted">(<span id="fileInfoSize"></span>)</span>
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</div>
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</div>
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<div class="mb-3">
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<label class="form-label" id="dayPhraseLabel">
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<i class="bi bi-chat-quote me-1"></i> {{ day_of_week }}'s Phrase
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</label>
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<input type="text" name="day_phrase" class="form-control"
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placeholder="e.g., correct horse battery" required>
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<div class="form-text">
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Your phrase for <strong>today</strong> (based on your local timezone)
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</div>
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</div>
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<hr class="my-4">
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<h6 class="text-muted mb-3">
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SECURITY FACTORS
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<span class="text-warning small">(provide at least one: PIN or RSA Key)</span>
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</h6>
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<div class="row">
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<div class="col-md-6 mb-3">
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<label class="form-label"><i class="bi bi-123 me-1"></i> PIN</label>
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<div class="input-group">
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<input type="password" name="pin" class="form-control" id="pinInput" placeholder="6-9 digits" maxlength="9">
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<button class="btn btn-outline-secondary" type="button" id="togglePin">
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<i class="bi bi-eye"></i>
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</button>
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</div>
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<div class="form-text">Your static 6-9 digit PIN (if configured)</div>
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</div>
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<div class="col-md-6 mb-3">
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<label class="form-label">
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<i class="bi bi-file-earmark-lock me-1"></i> RSA Key
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</label>
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<ul class="nav nav-tabs nav-tabs-sm mb-2" role="tablist">
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<li class="nav-item" role="presentation">
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<button class="nav-link active py-1 px-2 small" data-bs-toggle="tab" data-bs-target="#rsaFileTab" type="button">
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<i class="bi bi-file-earmark me-1"></i>.pem File
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</button>
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</li>
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<li class="nav-item" role="presentation">
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<button class="nav-link py-1 px-2 small" data-bs-toggle="tab" data-bs-target="#rsaQrTab" type="button">
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<i class="bi bi-qr-code me-1"></i>QR Code
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</button>
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</li>
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</ul>
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<div class="tab-content">
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<div class="tab-pane fade show active" id="rsaFileTab" role="tabpanel">
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<input type="file" name="rsa_key" class="form-control form-control-sm" id="rsaKeyInput" accept=".pem,.key,application/x-pem-file">
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<div class="form-text small">Shared .pem format key file.</div>
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</div>
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<div class="tab-pane fade" id="rsaQrTab" role="tabpanel">
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<input type="file" name="rsa_key_qr" class="form-control form-control-sm" id="rsaKeyQrInput" accept="image/*">
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<div class="form-text small">PNG, JPG, or other image of QR code</div>
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</div>
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</div>
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</div>
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</div>
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<!-- RSA Key Password (shown when key selected) -->
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<div class="mb-3 d-none" id="rsaPasswordGroup">
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<label class="form-label">
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<i class="bi bi-key me-1"></i> RSA Key Password
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</label>
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<input type="password" name="rsa_password" class="form-control"
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placeholder="Password for the .pem file (if encrypted)">
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<div class="form-text">
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Leave blank if your key file is not password-protected (not needed for QR codes)
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</div>
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</div>
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<button type="submit" class="btn btn-primary btn-lg w-100" id="encodeBtn">
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<i class="bi bi-lock me-2"></i>Encode
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</button>
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</form>
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<hr class="my-4">
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<div class="row text-center text-muted small">
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<div class="col-4">
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<i class="bi bi-shield-check fs-4 d-block mb-1 text-success"></i>
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AES-256-GCM Encryption
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</div>
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<div class="col-4">
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<i class="bi bi-shuffle fs-4 d-block mb-1 text-info"></i>
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Random Pixel Embedding
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</div>
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<div class="col-4">
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<i class="bi bi-eye-slash fs-4 d-block mb-1 text-warning"></i>
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Undetectable by Analysis
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</div>
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</div>
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<div class="alert alert-secondary mt-4 small">
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<i class="bi bi-info-circle me-1"></i>
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<strong>Limits:</strong>
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Carrier image max ~24 megapixels (6000×4000).
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Files max 30MB upload.
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Payload max {{ max_payload_kb }} KB.
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</div>
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</div>
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</div>
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</div>
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</div>
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{% endblock %}
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{% block scripts %}
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<script>
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// Detect client's local date and day
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const now = new Date();
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const dayNames = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
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const localDay = dayNames[now.getDay()];
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const localDate = now.getFullYear() + '-' +
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String(now.getMonth() + 1).padStart(2, '0') + '-' +
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String(now.getDate()).padStart(2, '0');
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// Update day label to client's local day
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const dayLabel = document.getElementById('dayPhraseLabel');
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if (dayLabel) {
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dayLabel.innerHTML = `<i class="bi bi-chat-quote me-1"></i> ${localDay}'s Phrase`;
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}
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// Set hidden field with client's local date for server
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const dateInput = document.getElementById('clientDate');
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if (dateInput) {
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dateInput.value = localDate;
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}
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// Payload type switching
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const payloadTextRadio = document.getElementById('payloadText');
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const payloadFileRadio = document.getElementById('payloadFile');
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const textSection = document.getElementById('textPayloadSection');
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const fileSection = document.getElementById('filePayloadSection');
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const messageInput = document.getElementById('messageInput');
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const payloadFileInput = document.getElementById('payloadFileInput');
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function updatePayloadSection() {
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const isText = payloadTextRadio.checked;
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textSection.classList.toggle('d-none', !isText);
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fileSection.classList.toggle('d-none', isText);
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// Update required attribute
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if (isText) {
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messageInput.required = true;
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payloadFileInput.required = false;
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} else {
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messageInput.required = false;
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payloadFileInput.required = true;
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}
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}
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payloadTextRadio.addEventListener('change', updatePayloadSection);
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payloadFileRadio.addEventListener('change', updatePayloadSection);
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// File payload info display
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const fileInfo = document.getElementById('fileInfo');
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const fileInfoName = document.getElementById('fileInfoName');
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const fileInfoSize = document.getElementById('fileInfoSize');
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const payloadDropLabel = document.getElementById('payloadDropLabel');
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payloadFileInput.addEventListener('change', function() {
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if (this.files && this.files[0]) {
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const file = this.files[0];
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fileInfoName.textContent = file.name;
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fileInfoSize.textContent = formatFileSize(file.size);
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fileInfo.classList.remove('d-none');
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payloadDropLabel.innerHTML = `<i class="bi bi-check-circle text-success fs-3 d-block mb-2"></i><span>${file.name}</span>`;
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} else {
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fileInfo.classList.add('d-none');
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payloadDropLabel.innerHTML = `<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i><span class="text-muted">Drop any file or click to browse</span><div class="small text-muted mt-1">Max {{ max_payload_kb }} KB</div>`;
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}
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});
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function formatFileSize(bytes) {
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if (bytes < 1024) return bytes + ' B';
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if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB';
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return (bytes / (1024 * 1024)).toFixed(1) + ' MB';
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}
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// Show RSA password field when key is selected (only for .pem files, not QR)
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const rsaKeyInput = document.getElementById('rsaKeyInput');
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const rsaKeyQrInput = document.getElementById('rsaKeyQrInput');
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const rsaPasswordGroup = document.getElementById('rsaPasswordGroup');
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if (rsaKeyInput) {
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rsaKeyInput.addEventListener('change', function() {
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// Show password field only for .pem files
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rsaPasswordGroup.classList.toggle('d-none', !this.files.length);
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// Clear QR input if file is selected
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if (rsaKeyQrInput && this.files.length) {
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rsaKeyQrInput.value = '';
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}
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});
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}
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if (rsaKeyQrInput) {
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rsaKeyQrInput.addEventListener('change', function() {
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// Hide password field for QR codes (they're unencrypted)
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rsaPasswordGroup.classList.add('d-none');
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// Clear file input if QR is selected
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if (rsaKeyInput && this.files.length) {
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rsaKeyInput.value = '';
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}
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});
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}
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// Form submit loading state
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document.getElementById('encodeForm').addEventListener('submit', function(e) {
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const btn = document.getElementById('encodeBtn');
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btn.innerHTML = '<span class="spinner-border spinner-border-sm me-2"></span>Encoding...';
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btn.disabled = true;
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});
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// Character counter for text
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const charCount = document.getElementById('charCount');
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const charWarning = document.getElementById('charWarning');
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const charPercent = document.getElementById('charPercent');
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const maxChars = 250000;
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messageInput.addEventListener('input', function() {
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const len = this.value.length;
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charCount.textContent = len.toLocaleString();
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const pct = Math.round((len / maxChars) * 100);
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charPercent.textContent = pct + '%';
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charWarning.classList.toggle('d-none', len < maxChars * 0.8);
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charCount.classList.toggle('text-danger', len > maxChars * 0.95);
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});
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// Drag & drop with preview for images
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document.querySelectorAll('.drop-zone').forEach(zone => {
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const input = zone.querySelector('input[type="file"]');
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const label = zone.querySelector('.drop-zone-label');
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const preview = zone.querySelector('.drop-zone-preview');
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const isPayloadZone = zone.id === 'payloadDropZone';
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['dragenter', 'dragover'].forEach(evt => {
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zone.addEventListener(evt, e => {
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e.preventDefault();
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zone.classList.add('drag-over');
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});
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});
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['dragleave', 'drop'].forEach(evt => {
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zone.addEventListener(evt, e => {
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e.preventDefault();
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zone.classList.remove('drag-over');
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});
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});
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zone.addEventListener('drop', e => {
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if (e.dataTransfer.files.length) {
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input.files = e.dataTransfer.files;
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input.dispatchEvent(new Event('change'));
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if (!isPayloadZone) {
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showPreview(e.dataTransfer.files[0]);
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}
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}
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});
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if (!isPayloadZone) {
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input.addEventListener('change', function() {
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if (this.files && this.files[0]) {
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showPreview(this.files[0]);
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}
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});
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}
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function showPreview(file) {
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if (!file.type.startsWith('image/')) return;
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const reader = new FileReader();
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reader.onload = e => {
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if (preview) {
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preview.src = e.target.result;
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preview.classList.remove('d-none');
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}
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label.innerHTML = '<i class="bi bi-check-circle text-success me-1"></i>' + file.name;
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};
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reader.readAsDataURL(file);
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}
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});
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// PIN Toggle Logic
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document.getElementById('togglePin').addEventListener('click', function() {
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const input = document.getElementById('pinInput');
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const icon = this.querySelector('i');
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if (input.type === 'password') {
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input.type = 'text';
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icon.classList.replace('bi-eye', 'bi-eye-slash');
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} else {
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input.type = 'password';
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icon.classList.replace('bi-eye-slash', 'bi-eye');
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}
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});
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// Prevent Same File Selection
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function checkDuplicateFiles() {
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const refInput = document.querySelector('input[name="reference_photo"]');
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const carInput = document.querySelector('input[name="carrier"]');
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if (refInput.files[0] && carInput.files[0]) {
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if (refInput.files[0].name === carInput.files[0].name &&
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refInput.files[0].size === carInput.files[0].size) {
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alert("Security Warning: You cannot use the same image for both Reference and Carrier!");
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carInput.value = '';
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document.getElementById('carrierPreview').classList.add('d-none');
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document.querySelector('#carrierDropZone .drop-zone-label').innerHTML =
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'<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i>' +
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'<span class="text-muted">Drop image or click to browse</span>';
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}
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}
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}
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document.querySelector('input[name="reference_photo"]').addEventListener('change', checkDuplicateFiles);
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document.querySelector('input[name="carrier"]').addEventListener('change', checkDuplicateFiles);
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// Paste from Clipboard
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document.addEventListener('paste', function(e) {
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const items = e.clipboardData.items;
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for (let i = 0; i < items.length; i++) {
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if (items[i].type.indexOf("image") !== -1) {
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const blob = items[i].getAsFile();
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const carrierInput = document.querySelector('input[name="carrier"]');
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const refInput = document.querySelector('input[name="reference_photo"]');
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const targetInput = (!carrierInput.files.length) ? carrierInput : refInput;
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const container = new DataTransfer();
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container.items.add(blob);
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targetInput.files = container.files;
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targetInput.dispatchEvent(new Event('change'));
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break;
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}
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}
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});
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</script>
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{% endblock %}
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