PDFCLOUD-4783: added use cases for Encrypt/Decrypt

Author: Dmitriy-Xawstov

UsesCases/EncryptDecrypt/decryptDocument.js

@@ -0,0 +1,53 @@
+import credentials from "../../../Credentials/credentials.json"  with { type: "json" };    // json-file in this format: { "id": "*****", "key": "*******" }
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import { PdfApi } from "../../src/api/api.js";
+
+const configParams = {
+    LOCAL_FOLDER: "C:\\Samples\\",
+    PDF_DOCUMENT_NAME: "sample_encrypted.pdf",
+    LOCAL_RESULT_DOCUMENT_NAME: "output_sample.pdf",
+    DOCUMENT_PASSWORD: "Owner-Password"
+};
+
+const pdfApi = new PdfApi(credentials.id, credentials.key);
+
+const pdfEncoder = {
+    async uploadDocument () {
+        const fileNamePath = path.join(configParams.LOCAL_FOLDER, configParams.PDF_DOCUMENT_NAME);
+        const pdfFileData = await fs.readFile(fileNamePath);
+        await pdfApi.uploadFile(configParams.PDF_DOCUMENT_NAME, pdfFileData)
+            .then(() => console.log("File: '" + configParams.PDF_DOCUMENT_NAME +"' successfully uploaded."));
+    },
+
+    async downloadResult() {
+        const changedPdfData = await pdfApi.downloadFile(configParams.PDF_DOCUMENT_NAME);
+        const filePath = path.join(configParams.LOCAL_FOLDER, configParams.LOCAL_RESULT_DOCUMENT_NAME);
+        await fs.writeFile(filePath, changedPdfData.body);
+        console.log("Downloaded: " + filePath);
+    },
+
+    async decrypt_document() {
+        const password_encoded = btoa(configParams.DOCUMENT_PASSWORD)
+
+        const response = await pdfApi.postDecryptDocumentInStorage(configParams.PDF_DOCUMENT_NAME, password_encoded);
+
+        if (response.body.code == 200)
+            console.log("decrypt_document(): Document #'" + configParams.PDF_DOCUMENT_NAME + "' successfully decrypted.")
+        else
+            throw new Error("decrypt_document(): Failed to decrypt document #'" + configParams.PDF_DOCUMENT_NAME + "'. Response code: {" + response.code + "}")
+    },
+    
+}
+
+async function main() {
+    try {
+        await pdfEncoder.uploadDocument();
+        await pdfEncoder.decrypt_document();
+        await pdfEncoder.downloadResult();
+    } catch (error) {
+        console.error("Error:", error.message);
+    }
+}
+
+main();

UsesCases/EncryptDecrypt/encryptDocument.js

@@ -0,0 +1,58 @@
+import credentials from "../../../Credentials/credentials.json"  with { type: "json" };    // json-file in this format: { "id": "*****", "key": "*******" }
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import { PdfApi } from "../../src/api/api.js";
+import { CryptoAlgorithm } from "../../src/models/cryptoAlgorithm.js";
+
+const configParams = {
+    LOCAL_FOLDER: "C:\\Samples\\",
+    PDF_DOCUMENT_NAME: "sample.pdf",
+    LOCAL_RESULT_DOCUMENT_NAME: "output_sample.pdf",
+    ENCRYPT_ALGORITHM: CryptoAlgorithm.AESx256,
+    USER_PASSWORD: "User-Password",
+    OWNER_PASSWORD: "Owner-Password",
+};
+
+const pdfApi = new PdfApi(credentials.id, credentials.key);
+
+const pdfEncoder = {
+    async uploadDocument () {
+        const fileNamePath = path.join(configParams.LOCAL_FOLDER, configParams.PDF_DOCUMENT_NAME);
+        const pdfFileData = await fs.readFile(fileNamePath);
+        await pdfApi.uploadFile(configParams.PDF_DOCUMENT_NAME, pdfFileData)
+            .then(() => console.log("File: '" + configParams.PDF_DOCUMENT_NAME +"' successfully uploaded."));
+    },
+
+    async downloadResult() {
+        const changedPdfData = await pdfApi.downloadFile(configParams.PDF_DOCUMENT_NAME);
+        const filePath = path.join(configParams.LOCAL_FOLDER, configParams.LOCAL_RESULT_DOCUMENT_NAME);
+        await fs.writeFile(filePath, changedPdfData.body);
+        console.log("Downloaded: " + filePath);
+    },
+
+    async encrypt_document() {
+        const user_password_encoded = btoa(configParams.USER_PASSWORD)
+
+        const owner_password_encoded = btoa(configParams.OWNER_PASSWORD)
+
+        const response = await pdfApi.postEncryptDocumentInStorage(configParams.PDF_DOCUMENT_NAME, user_password_encoded, owner_password_encoded, configParams.ENCRYPT_ALGORITHM);
+        
+        if (response.body.code == 200)
+            console.log("encrypt_document(): Document #'" + configParams.PDF_DOCUMENT_NAME + "' successfully encrypted.")
+        else
+            throw new Error("encrypt_document(): Failed to encrypt document #'" + configParams.PDF_DOCUMENT_NAME + "'. Response code: {" + response.code + "}")
+    },
+    
+}
+
+async function main() {
+    try {
+        await pdfEncoder.uploadDocument();
+        await pdfEncoder.encrypt_document();
+        await pdfEncoder.downloadResult();
+    } catch (error) {
+        console.error("Error:", error.message);
+    }
+}
+
+main();