Crittografa e decrittografa file ODS con JavaScript via C++
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OpenOffice.org è una suite per ufficio completa che supporta la protezione con password e la cifratura dei file. Tuttavia, un file ODS cifrato può essere aperto solo da OpenOffice dopo aver fornito la password. Excel non può aprire il file ODS criptato e potrebbe mostrare messaggi di avviso. Le opzioni di cifratura non sono applicabili ai file ODS, a differenza di altri tipi di file.
Aspose.Cells permette di cifrare e decifrare file ODS. I file ODS decifrati possono essere aperti sia in Excel che in OpenOffice.
Crittografa con OpenOffice Calc
- Seleziona Salva come e clicca sulla casella Salva con password.
- Fai clic sul pulsante Salva.
- Digita la password desiderata nei campi Inserisci password per aprire e Conferma password nella finestra Imposta password che si apre.
- Fare clic sul pulsante OK per salvare il file.
Crittografa il file ODS con Aspose.Cells for JavaScript via C++
Per crittografare un file ODS, caricare il file e impostare il valore WorkbookSettings.password sulla password effettiva prima di salvarlo. Il file ODS crittografato in output può essere aperto solo in OpenOffice.
<!DOCTYPE html>
<html>
<head>
<title>Aspose.Cells Example - Protect ODS File</title>
</head>
<body>
<h1>Protect ODS File Example</h1>
<input type="file" id="fileInput" accept=".ods" />
<button id="runExample">Protect and Download ODS</button>
<a id="downloadLink" style="display: none;">Download Result</a>
<div id="result"></div>
</body>
<script src="aspose.cells.js.min.js"></script>
<script type="text/javascript">
const { Workbook, SaveFormat } = AsposeCells;
AsposeCells.onReady({
license: "/lic/aspose.cells.enc",
fontPath: "/fonts/",
fontList: [
"arial.ttf",
"NotoSansSC-Regular.ttf"
]
}).then(() => {
console.log("Aspose.Cells initialized");
});
document.getElementById('runExample').addEventListener('click', async () => {
const fileInput = document.getElementById('fileInput');
if (!fileInput.files.length) {
document.getElementById('result').innerHTML = '<p style="color: red;">Please select an ODS file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Instantiating a Workbook object by opening the uploaded ODS file
const workbook = new Workbook(new Uint8Array(arrayBuffer));
// Password protect the file (converted from getSettings().setPassword -> settings.password)
workbook.settings.password = "1234";
// Saving the ODS file
const outputData = workbook.save(SaveFormat.Ods);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'outputEncryptedODSFile.ods';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Encrypted ODS File';
document.getElementById('result').innerHTML = '<p style="color: green;">File protected successfully! Click the download link to get the encrypted file.</p>';
});
</script>
</html>
Decrittografa il file ODS con Aspose.Cells for JavaScript via C++
Per decriptare un file ODS, caricare il file fornendo una password in LoadOptions.password. Una volta caricato, impostare la stringa WorkbookSettings.password su null.
<!DOCTYPE html>
<html>
<head>
<title>Decrypt ODS Example</title>
</head>
<body>
<h1>Decrypt ODS Example</h1>
<input type="file" id="fileInput" accept=".ods" />
<button id="runExample">Run Example</button>
<a id="downloadLink" style="display: none;">Download Result</a>
<div id="result"></div>
</body>
<script src="aspose.cells.js.min.js"></script>
<script type="text/javascript">
const { Workbook, SaveFormat, LoadOptions, LoadFormat, Utils } = AsposeCells;
AsposeCells.onReady({
license: "/lic/aspose.cells.enc",
fontPath: "/fonts/",
fontList: [
"arial.ttf",
"NotoSansSC-Regular.ttf"
]
}).then(() => {
console.log("Aspose.Cells initialized");
});
document.getElementById('runExample').addEventListener('click', async () => {
const fileInput = document.getElementById('fileInput');
if (!fileInput.files.length) {
document.getElementById('result').innerHTML = '<p style="color: red;">Please select an ODS file.</p>';
return;
}
const file = fileInput.files[0];
const arrayBuffer = await file.arrayBuffer();
// Open an encrypted ODS file with load options
const loadOptions = new LoadOptions(LoadFormat.Ods);
// Set original password
loadOptions.password = "1234";
// Load the encrypted ODS file with the appropriate load options
const workbook = new Workbook(new Uint8Array(arrayBuffer), loadOptions);
// Set the password to null (remove password from settings)
workbook.settings.password = null;
// Save the decrypted ODS file and provide download link
const outputData = workbook.save(SaveFormat.Ods);
const blob = new Blob([outputData]);
const downloadLink = document.getElementById('downloadLink');
downloadLink.href = URL.createObjectURL(blob);
downloadLink.download = 'outputDecryptedODSFile.ods';
downloadLink.style.display = 'block';
downloadLink.textContent = 'Download Decrypted ODS File';
document.getElementById('result').innerHTML = '<p style="color: green;">Decryption completed successfully! Click the download link to get the decrypted file.</p>';
});
</script>
</html>