Repository navigation
Expand file tree
/
Copy pathserver.ts
More file actions
311 lines (284 loc) · 10.2 KB
/
Copy pathserver.ts
File metadata and controls
311 lines (284 loc) · 10.2 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
import express from 'express';
import multer from 'multer';
import cors from 'cors';
import path from 'path';
import fs from 'fs';
import { convertDngToPng } from './dng-converter';
const router = express.Router();
// Configure CORS
router.use(cors());
router.use(express.json());
// Configure multer for file uploads
const storage = multer.diskStorage({
destination: (req, file, cb) => {
const uploadDir = 'uploads';
if (!fs.existsSync(uploadDir)) {
fs.mkdirSync(uploadDir, { recursive: true });
}
cb(null, uploadDir);
},
filename: (req, file, cb) => {
const uniqueSuffix = Date.now() + '-' + Math.round(Math.random() * 1E9);
cb(null, file.fieldname + '-' + uniqueSuffix + path.extname(file.originalname));
}
});
const upload = multer({
storage: storage,
fileFilter: (req, file, cb) => {
// Accept DNG files
if (file.mimetype === 'image/x-adobe-dng' || file.originalname.toLowerCase().endsWith('.dng')) {
cb(null, true);
} else {
cb(new Error('Only DNG files are allowed!'));
}
},
limits: {
fileSize: 50 * 1024 * 1024 // 50MB limit
}
});
// Serve the API mode interface
router.get('/', (req, res) => {
res.send(`
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>DNG to PNG Converter - API Mode</title>
<style>
body {
font-family: Arial, sans-serif;
max-width: 800px;
margin: 0 auto;
padding: 20px;
background-color: #f5f5f5;
}
.container {
background: white;
padding: 30px;
border-radius: 10px;
box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
h1 {
color: #333;
text-align: center;
margin-bottom: 10px;
}
.mode-badge {
background: #007bff;
color: white;
padding: 5px 15px;
border-radius: 20px;
font-size: 14px;
text-align: center;
margin-bottom: 20px;
}
.back-link {
color: #007bff;
text-decoration: none;
margin-bottom: 20px;
display: inline-block;
}
.back-link:hover {
text-decoration: underline;
}
form {
margin: 20px 0;
}
input[type="file"] {
width: 100%;
padding: 10px;
margin: 10px 0;
border: 2px dashed #ccc;
border-radius: 5px;
}
button {
background-color: #007bff;
color: white;
padding: 12px 20px;
border: none;
border-radius: 5px;
cursor: pointer;
font-size: 16px;
width: 100%;
}
button:hover {
background-color: #0056b3;
}
button:disabled {
background-color: #6c757d;
cursor: not-allowed;
}
.result {
margin-top: 20px;
padding: 15px;
border-radius: 5px;
}
.success {
background-color: #d4edda;
color: #155724;
border: 1px solid #c3e6cb;
}
.error {
background-color: #f8d7da;
color: #721c24;
border: 1px solid #f5c6cb;
}
.loading {
background-color: #fff3cd;
color: #856404;
border: 1px solid #ffeaa7;
}
.info {
background-color: #e2f3ff;
color: #004085;
border: 1px solid #b8daff;
margin-bottom: 20px;
padding: 15px;
border-radius: 5px;
}
.progress {
width: 100%;
height: 20px;
background-color: #f0f0f0;
border-radius: 10px;
overflow: hidden;
margin: 10px 0;
}
.progress-bar {
height: 100%;
background-color: #007bff;
width: 0%;
transition: width 0.3s ease;
}
</style>
</head>
<body>
<div class="container">
<a href="/" class="back-link">← Back to Mode Selection</a>
<h1>🌐 DNG to PNG Converter</h1>
<div class="mode-badge">API Mode - Server-side Processing</div>
<div class="info">
<strong>API Mode Features:</strong><br>
• High-quality conversion using dcraw + Sharp<br>
• Supports large DNG files (up to 50MB)<br>
• Server-side processing for reliable results<br>
• Full RAW processing pipeline
</div>
<form id="uploadForm" enctype="multipart/form-data">
<input type="file" id="dngFile" name="dngFile" accept=".dng" required>
<button type="submit" id="convertBtn">Convert to PNG</button>
</form>
<div id="progress" class="progress" style="display: none;">
<div id="progressBar" class="progress-bar"></div>
</div>
<div id="result"></div>
</div>
<script>
document.getElementById('uploadForm').addEventListener('submit', async function(e) {
e.preventDefault();
const fileInput = document.getElementById('dngFile');
const result = document.getElementById('result');
const convertBtn = document.getElementById('convertBtn');
const progress = document.getElementById('progress');
const progressBar = document.getElementById('progressBar');
if (!fileInput.files[0]) {
result.innerHTML = '<div class="error">Please select a DNG file.</div>';
return;
}
const formData = new FormData();
formData.append('dngFile', fileInput.files[0]);
// Show loading state
convertBtn.disabled = true;
convertBtn.textContent = 'Converting...';
progress.style.display = 'block';
result.innerHTML = '<div class="loading">Converting DNG file... Please wait.</div>';
// Simulate progress
let progressValue = 0;
const progressInterval = setInterval(() => {
progressValue += Math.random() * 20;
if (progressValue > 90) progressValue = 90;
progressBar.style.width = progressValue + '%';
}, 500);
try {
const response = await fetch('/api-mode/convert', {
method: 'POST',
body: formData
});
clearInterval(progressInterval);
progressBar.style.width = '100%';
if (response.ok)
819F
{
const data = await response.json();
result.innerHTML = \`
<div class="success">
✅ Conversion completed successfully!<br>
<a href="/api-mode/download/\${data.filename}" download style="color: #155724; font-weight: bold;">📥 Download PNG file</a>
</div>
\`;
} else {
const error = await response.json();
result.innerHTML = \`<div class="error">❌ Error: \${error.message}</div>\`;
}
} catch (error) {
clearInterval(progressInterval);
result.innerHTML = \`<div class="error">❌ Conversion failed: \${error.message}</div>\`;
} finally {
convertBtn.disabled = false;
convertBtn.textContent = 'Convert to PNG';
setTimeout(() => {
progress.style.display = 'none';
progressBar.style.width = '0%';
}, 1000);
}
});
</script>
</body>
</html>
`);
});
// Convert DNG to PNG endpoint
router.post('/convert', upload.single('dngFile'), async (req, res) => {
try {
if (!req.file) {
return res.status(400).json({ message: 'DNG file is required.' });
}
const inputPath = req.file.path;
const outputFilename = req.file.filename.replace(/\.[^/.]+$/, '.png');
const outputPath = path.join('uploads', outputFilename);
await convertDngToPng(inputPath, outputPath);
// Clean up input file
fs.unlinkSync(inputPath);
res.json({
message: 'Conversion completed successfully.',
filename: outputFilename
});
} catch (error) {
console.error('Conversion error:', error);
res.status(500).json({
message: 'Error occurred during DNG conversion.',
error: error instanceof Error ? error.message : String(error)
});
}
});
// Download converted file
router.get('/download/:filename', (req, res) => {
const filename = req.params.filename;
const filePath = path.join('uploads', filename);
if (fs.existsSync(filePath)) {
res.download(filePath, (err) => {
if (err) {
console.error('Download error:', err);
} else {
// Clean up file after download
setTimeout(() => {
if (fs.existsSync(filePath)) {
fs.unlinkSync(filePath);
}
}, 5000);
}
});
} else {
res.status(404).json({ message: 'File not found.' });
}
});
module.exports = router;