755 lines
38 KiB
HTML
755 lines
38 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 id="carrierInput">
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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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<!-- Capacity Info Panel (shown when carrier loaded) -->
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<div class="alert alert-info small d-none" id="capacityPanel">
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<div class="row align-items-center">
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<div class="col">
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<i class="bi bi-rulers me-1"></i>
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<strong>Carrier:</strong> <span id="carrierDimensions">-</span>
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</div>
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<div class="col-auto">
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<span class="badge bg-primary me-1" id="lsbCapacityBadge">LSB: -</span>
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<span class="badge bg-secondary" id="dctCapacityBadge">DCT: -</span>
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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'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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<!-- ================================================================
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ADVANCED OPTIONS (v3.0) - Collapsible Section
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================================================================ -->
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<div class="mb-4">
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<a class="btn btn-sm btn-outline-secondary w-100" data-bs-toggle="collapse" href="#advancedOptions" role="button" aria-expanded="false">
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<i class="bi bi-gear me-1"></i> Advanced Options
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<i class="bi bi-chevron-down ms-1" id="advancedChevron"></i>
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</a>
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<div class="collapse" id="advancedOptions">
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<div class="card card-body mt-2 bg-dark border-secondary">
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<!-- Embedding Mode Selection -->
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<div class="mb-3">
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<label class="form-label">
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<i class="bi bi-cpu me-1"></i> Embedding Mode
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<span class="badge bg-info ms-1">v3.0</span>
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</label>
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<div class="row g-2">
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<!-- LSB Mode Card -->
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<div class="col-md-6">
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<div class="form-check card p-3 h-100 border-primary border-2" id="lsbModeCard">
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<input class="form-check-input" type="radio" name="embed_mode" id="modeLsb" value="lsb" checked>
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<label class="form-check-label w-100" for="modeLsb">
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<div class="d-flex align-items-center mb-2">
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<i class="bi bi-grid-3x3-gap text-primary fs-4 me-2"></i>
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<strong>LSB Mode</strong>
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<span class="badge bg-success ms-auto">Default</span>
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</div>
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<ul class="small text-muted mb-0 ps-3">
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<li>Full color PNG output</li>
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<li>Higher capacity (~375 KB/MP)</li>
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<li>Faster processing</li>
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</ul>
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</label>
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</div>
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</div>
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<!-- DCT Mode Card -->
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<div class="col-md-6">
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<div class="form-check card p-3 h-100 {% if not has_dct %}opacity-50{% endif %}" id="dctModeCard">
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<input class="form-check-input" type="radio" name="embed_mode" id="modeDct" value="dct" {% if not has_dct %}disabled{% endif %}>
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<label class="form-check-label w-100" for="modeDct">
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<div class="d-flex align-items-center mb-2">
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<i class="bi bi-soundwave text-info fs-4 me-2"></i>
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<strong>DCT Mode</strong>
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{% if has_dct %}
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<span class="badge bg-info ms-auto">Stealth</span>
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{% else %}
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<span class="badge bg-secondary ms-auto">Unavailable</span>
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{% endif %}
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</div>
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<ul class="small text-muted mb-0 ps-3">
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<li>Grayscale output (PNG/JPEG)</li>
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<li>Lower capacity (~75 KB/MP)</li>
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<li>Better detection resistance</li>
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</ul>
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{% if not has_dct %}
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<div class="alert alert-warning small mt-2 mb-0 py-1 px-2">
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<i class="bi bi-exclamation-triangle me-1"></i>
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Requires scipy: <code>pip install scipy</code>
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</div>
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{% endif %}
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</label>
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</div>
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</div>
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</div>
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<!-- Mode comparison hint -->
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<div class="form-text mt-2" id="modeHint">
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<i class="bi bi-lightbulb me-1"></i>
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<strong>LSB</strong> is best for most uses.
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<strong>DCT</strong> provides better stealth but smaller capacity and grayscale output.
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</div>
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</div>
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<!-- DCT Output Format (shown only when DCT selected) -->
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<div class="mb-3 d-none" id="dctOutputFormatGroup">
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<label class="form-label">
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<i class="bi bi-file-image me-1"></i> DCT Output Format
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</label>
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<div class="row g-2">
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<div class="col-6">
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<div class="form-check card p-2 text-center" id="dctPngCard">
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<input class="form-check-input mx-auto" type="radio" name="dct_output_format" id="dctFormatPng" value="png" checked>
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<label class="form-check-label w-100" for="dctFormatPng">
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<i class="bi bi-file-earmark-image text-success fs-5 d-block"></i>
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<strong>PNG</strong>
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<div class="small text-muted">Lossless, larger</div>
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</label>
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</div>
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</div>
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<div class="col-6">
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<div class="form-check card p-2 text-center" id="dctJpegCard">
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<input class="form-check-input mx-auto" type="radio" name="dct_output_format" id="dctFormatJpeg" value="jpeg">
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<label class="form-check-label w-100" for="dctFormatJpeg">
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<i class="bi bi-file-earmark-richtext text-warning fs-5 d-block"></i>
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<strong>JPEG</strong>
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<div class="small text-muted">Smaller, natural</div>
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</label>
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</div>
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</div>
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</div>
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<div class="form-text mt-2">
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<i class="bi bi-info-circle me-1"></i>
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<strong>PNG</strong> is 100% reliable. <strong>JPEG</strong> produces smaller, more natural-looking files but uses lossy compression (Q=95).
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</div>
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</div>
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<!-- Capacity Comparison (populated by JS) -->
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<div class="d-none" id="modeCapacityComparison">
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<div class="alert alert-secondary small mb-0">
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<div class="row text-center">
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<div class="col-6 border-end">
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<div class="text-muted">LSB Capacity</div>
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<div class="fs-5 text-primary" id="lsbCapacityDetail">-</div>
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</div>
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<div class="col-6">
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<div class="text-muted">DCT Capacity</div>
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<div class="fs-5 text-info" id="dctCapacityDetail">-</div>
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</div>
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</div>
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<div class="text-center mt-2 small text-muted" id="capacityRatio">
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DCT is ~20% of LSB capacity
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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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</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>Secure with <span class="day-of-week-highlight">${localDay}</span>'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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}
|
||
|
||
// Show RSA password field when key is selected (only for .pem files, not QR)
|
||
const rsaKeyInput = document.getElementById('rsaKeyInput');
|
||
const rsaKeyQrInput = document.getElementById('rsaKeyQrInput');
|
||
const rsaPasswordGroup = document.getElementById('rsaPasswordGroup');
|
||
|
||
if (rsaKeyInput) {
|
||
rsaKeyInput.addEventListener('change', function() {
|
||
// Show password field only for .pem files
|
||
rsaPasswordGroup.classList.toggle('d-none', !this.files.length);
|
||
// Clear QR input if file is selected
|
||
if (rsaKeyQrInput && this.files.length) {
|
||
rsaKeyQrInput.value = '';
|
||
}
|
||
});
|
||
}
|
||
|
||
if (rsaKeyQrInput) {
|
||
rsaKeyQrInput.addEventListener('change', function() {
|
||
// Hide password field for QR codes (they're unencrypted)
|
||
rsaPasswordGroup.classList.add('d-none');
|
||
// Clear file input if QR is selected
|
||
if (rsaKeyInput && this.files.length) {
|
||
rsaKeyInput.value = '';
|
||
}
|
||
});
|
||
}
|
||
|
||
// Form submit loading state
|
||
document.getElementById('encodeForm').addEventListener('submit', function(e) {
|
||
const btn = document.getElementById('encodeBtn');
|
||
const selectedMode = document.querySelector('input[name="embed_mode"]:checked').value;
|
||
let modeLabel = selectedMode.toUpperCase();
|
||
|
||
if (selectedMode === 'dct') {
|
||
const outputFormat = document.querySelector('input[name="dct_output_format"]:checked')?.value || 'png';
|
||
modeLabel += ` → ${outputFormat.toUpperCase()}`;
|
||
}
|
||
|
||
btn.innerHTML = `<span class="spinner-border spinner-border-sm me-2"></span>Encoding (${modeLabel})...`;
|
||
btn.disabled = true;
|
||
});
|
||
|
||
// Character counter for text
|
||
const charCount = document.getElementById('charCount');
|
||
const charWarning = document.getElementById('charWarning');
|
||
const charPercent = document.getElementById('charPercent');
|
||
const maxChars = 250000;
|
||
|
||
messageInput.addEventListener('input', function() {
|
||
const len = this.value.length;
|
||
charCount.textContent = len.toLocaleString();
|
||
|
||
const pct = Math.round((len / maxChars) * 100);
|
||
charPercent.textContent = pct + '%';
|
||
|
||
charWarning.classList.toggle('d-none', len < maxChars * 0.8);
|
||
charCount.classList.toggle('text-danger', len > maxChars * 0.95);
|
||
});
|
||
|
||
// ============================================================================
|
||
// v3.0 - Capacity Comparison API
|
||
// ============================================================================
|
||
|
||
const carrierInput = document.getElementById('carrierInput');
|
||
const capacityPanel = document.getElementById('capacityPanel');
|
||
const carrierDimensions = document.getElementById('carrierDimensions');
|
||
const lsbCapacityBadge = document.getElementById('lsbCapacityBadge');
|
||
const dctCapacityBadge = document.getElementById('dctCapacityBadge');
|
||
const lsbCapacityDetail = document.getElementById('lsbCapacityDetail');
|
||
const dctCapacityDetail = document.getElementById('dctCapacityDetail');
|
||
const modeCapacityComparison = document.getElementById('modeCapacityComparison');
|
||
const capacityRatio = document.getElementById('capacityRatio');
|
||
|
||
let currentCapacity = null;
|
||
|
||
async function fetchCapacityComparison(file) {
|
||
const formData = new FormData();
|
||
formData.append('carrier', file);
|
||
|
||
try {
|
||
const response = await fetch('/api/compare-capacity', {
|
||
method: 'POST',
|
||
body: formData
|
||
});
|
||
|
||
if (response.ok) {
|
||
const data = await response.json();
|
||
if (data.success) {
|
||
currentCapacity = data;
|
||
updateCapacityDisplay(data);
|
||
}
|
||
}
|
||
} catch (err) {
|
||
console.error('Capacity comparison failed:', err);
|
||
}
|
||
}
|
||
|
||
function updateCapacityDisplay(data) {
|
||
// Update top panel
|
||
carrierDimensions.textContent = `${data.width} × ${data.height}`;
|
||
lsbCapacityBadge.textContent = `LSB: ${data.lsb.capacity_kb} KB`;
|
||
|
||
if (data.dct.available) {
|
||
dctCapacityBadge.textContent = `DCT: ${data.dct.capacity_kb} KB`;
|
||
dctCapacityBadge.classList.remove('bg-secondary');
|
||
dctCapacityBadge.classList.add('bg-info');
|
||
} else {
|
||
dctCapacityBadge.textContent = `DCT: N/A`;
|
||
dctCapacityBadge.classList.remove('bg-info');
|
||
dctCapacityBadge.classList.add('bg-secondary');
|
||
}
|
||
|
||
capacityPanel.classList.remove('d-none');
|
||
|
||
// Update advanced options panel
|
||
lsbCapacityDetail.textContent = `${data.lsb.capacity_kb} KB`;
|
||
dctCapacityDetail.textContent = data.dct.available ? `${data.dct.capacity_kb} KB` : 'N/A';
|
||
capacityRatio.textContent = data.dct.available
|
||
? `DCT is ${data.dct.ratio}% of LSB capacity`
|
||
: 'DCT mode not available';
|
||
modeCapacityComparison.classList.remove('d-none');
|
||
}
|
||
|
||
// Listen for carrier file selection
|
||
if (carrierInput) {
|
||
carrierInput.addEventListener('change', function() {
|
||
if (this.files && this.files[0]) {
|
||
fetchCapacityComparison(this.files[0]);
|
||
} else {
|
||
capacityPanel.classList.add('d-none');
|
||
modeCapacityComparison.classList.add('d-none');
|
||
currentCapacity = null;
|
||
}
|
||
});
|
||
}
|
||
|
||
// ============================================================================
|
||
// Mode card highlighting & DCT output format visibility
|
||
// ============================================================================
|
||
|
||
const lsbModeCard = document.getElementById('lsbModeCard');
|
||
const dctModeCard = document.getElementById('dctModeCard');
|
||
const modeLsb = document.getElementById('modeLsb');
|
||
const modeDct = document.getElementById('modeDct');
|
||
const dctOutputFormatGroup = document.getElementById('dctOutputFormatGroup');
|
||
const dctPngCard = document.getElementById('dctPngCard');
|
||
const dctJpegCard = document.getElementById('dctJpegCard');
|
||
const dctFormatPng = document.getElementById('dctFormatPng');
|
||
const dctFormatJpeg = document.getElementById('dctFormatJpeg');
|
||
|
||
function updateModeCardHighlight() {
|
||
// Mode cards
|
||
lsbModeCard.classList.toggle('border-primary', modeLsb.checked);
|
||
lsbModeCard.classList.toggle('border-2', modeLsb.checked);
|
||
dctModeCard.classList.toggle('border-info', modeDct.checked);
|
||
dctModeCard.classList.toggle('border-2', modeDct.checked);
|
||
|
||
// Show/hide DCT output format selector
|
||
if (dctOutputFormatGroup) {
|
||
dctOutputFormatGroup.classList.toggle('d-none', !modeDct.checked);
|
||
}
|
||
}
|
||
|
||
function updateDctFormatCardHighlight() {
|
||
if (dctPngCard && dctJpegCard) {
|
||
dctPngCard.classList.toggle('border-success', dctFormatPng.checked);
|
||
dctPngCard.classList.toggle('border-2', dctFormatPng.checked);
|
||
dctJpegCard.classList.toggle('border-warning', dctFormatJpeg.checked);
|
||
dctJpegCard.classList.toggle('border-2', dctFormatJpeg.checked);
|
||
}
|
||
}
|
||
|
||
modeLsb.addEventListener('change', updateModeCardHighlight);
|
||
modeDct.addEventListener('change', updateModeCardHighlight);
|
||
dctFormatPng?.addEventListener('change', updateDctFormatCardHighlight);
|
||
dctFormatJpeg?.addEventListener('change', updateDctFormatCardHighlight);
|
||
|
||
updateModeCardHighlight(); // Initial state
|
||
updateDctFormatCardHighlight(); // Initial state
|
||
|
||
// Advanced options chevron rotation
|
||
document.getElementById('advancedOptions').addEventListener('show.bs.collapse', function() {
|
||
document.getElementById('advancedChevron').classList.add('bi-chevron-up');
|
||
document.getElementById('advancedChevron').classList.remove('bi-chevron-down');
|
||
});
|
||
document.getElementById('advancedOptions').addEventListener('hide.bs.collapse', function() {
|
||
document.getElementById('advancedChevron').classList.remove('bi-chevron-up');
|
||
document.getElementById('advancedChevron').classList.add('bi-chevron-down');
|
||
});
|
||
|
||
// ============================================================================
|
||
// Drag & drop with preview for images
|
||
// ============================================================================
|
||
|
||
document.querySelectorAll('.drop-zone').forEach(zone => {
|
||
const input = zone.querySelector('input[type="file"]');
|
||
const label = zone.querySelector('.drop-zone-label');
|
||
const preview = zone.querySelector('.drop-zone-preview');
|
||
const isPayloadZone = zone.id === 'payloadDropZone';
|
||
const isCarrierZone = zone.id === 'carrierDropZone';
|
||
|
||
['dragenter', 'dragover'].forEach(evt => {
|
||
zone.addEventListener(evt, e => {
|
||
e.preventDefault();
|
||
zone.classList.add('drag-over');
|
||
});
|
||
});
|
||
|
||
['dragleave', 'drop'].forEach(evt => {
|
||
zone.addEventListener(evt, e => {
|
||
e.preventDefault();
|
||
zone.classList.remove('drag-over');
|
||
});
|
||
});
|
||
|
||
zone.addEventListener('drop', e => {
|
||
if (e.dataTransfer.files.length) {
|
||
input.files = e.dataTransfer.files;
|
||
input.dispatchEvent(new Event('change'));
|
||
|
||
if (!isPayloadZone) {
|
||
showPreview(e.dataTransfer.files[0]);
|
||
}
|
||
|
||
// Trigger capacity check for carrier
|
||
if (isCarrierZone && e.dataTransfer.files[0]) {
|
||
fetchCapacityComparison(e.dataTransfer.files[0]);
|
||
}
|
||
}
|
||
});
|
||
|
||
if (!isPayloadZone) {
|
||
input.addEventListener('change', function() {
|
||
if (this.files && this.files[0]) {
|
||
showPreview(this.files[0]);
|
||
}
|
||
});
|
||
}
|
||
|
||
function showPreview(file) {
|
||
if (!file.type.startsWith('image/')) return;
|
||
|
||
const reader = new FileReader();
|
||
reader.onload = e => {
|
||
if (preview) {
|
||
preview.src = e.target.result;
|
||
preview.classList.remove('d-none');
|
||
}
|
||
label.innerHTML = '<i class="bi bi-check-circle text-success me-1"></i>' + file.name;
|
||
};
|
||
reader.readAsDataURL(file);
|
||
}
|
||
});
|
||
|
||
// PIN Toggle Logic
|
||
document.getElementById('togglePin').addEventListener('click', function() {
|
||
const input = document.getElementById('pinInput');
|
||
const icon = this.querySelector('i');
|
||
if (input.type === 'password') {
|
||
input.type = 'text';
|
||
icon.classList.replace('bi-eye', 'bi-eye-slash');
|
||
} else {
|
||
input.type = 'password';
|
||
icon.classList.replace('bi-eye-slash', 'bi-eye');
|
||
}
|
||
});
|
||
|
||
// Prevent Same File Selection
|
||
function checkDuplicateFiles() {
|
||
const refInput = document.querySelector('input[name="reference_photo"]');
|
||
const carInput = document.querySelector('input[name="carrier"]');
|
||
|
||
if (refInput.files[0] && carInput.files[0]) {
|
||
if (refInput.files[0].name === carInput.files[0].name &&
|
||
refInput.files[0].size === carInput.files[0].size) {
|
||
alert("Security Warning: You cannot use the same image for both Reference and Carrier!");
|
||
carInput.value = '';
|
||
document.getElementById('carrierPreview').classList.add('d-none');
|
||
document.querySelector('#carrierDropZone .drop-zone-label').innerHTML =
|
||
'<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i>' +
|
||
'<span class="text-muted">Drop image or click to browse</span>';
|
||
capacityPanel.classList.add('d-none');
|
||
}
|
||
}
|
||
}
|
||
document.querySelector('input[name="reference_photo"]').addEventListener('change', checkDuplicateFiles);
|
||
document.querySelector('input[name="carrier"]').addEventListener('change', checkDuplicateFiles);
|
||
|
||
// Paste from Clipboard
|
||
document.addEventListener('paste', function(e) {
|
||
const items = e.clipboardData.items;
|
||
for (let i = 0; i < items.length; i++) {
|
||
if (items[i].type.indexOf("image") !== -1) {
|
||
const blob = items[i].getAsFile();
|
||
|
||
const carrierInput = document.querySelector('input[name="carrier"]');
|
||
const refInput = document.querySelector('input[name="reference_photo"]');
|
||
|
||
const targetInput = (!carrierInput.files.length) ? carrierInput : refInput;
|
||
|
||
const container = new DataTransfer();
|
||
container.items.add(blob);
|
||
targetInput.files = container.files;
|
||
|
||
targetInput.dispatchEvent(new Event('change'));
|
||
|
||
// Trigger capacity check if pasted to carrier
|
||
if (targetInput === carrierInput) {
|
||
fetchCapacityComparison(blob);
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
});
|
||
</script>
|
||
{% endblock %}
|