node-pdfbox-util
Version:
Package for integration with apache pdfbox
121 lines (120 loc) • 7.75 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.NodePdfBoxUtilsBasic = void 0;
const child_process_1 = __importDefault(require("child_process"));
const path_1 = __importDefault(require("path"));
const utils_1 = require("./pdfboxutil/utils");
//Creamos la clase NodePdfBoxUtilsBasic. Dentro tendrá las funciones
// getDocumentInfo
// getDocumentText
// convertPdfToImage
const libpath = path_1.default.join(__dirname, "../lib");
const defaultBuffer = 1; //tamaño en MB
// const java_classpath = `${libpath}/pdfbox-3.0.3.jar;${libpath}/fontbox-3.0.3.jar;${libpath}/commons-logging-1.3.3.jar;${libpath}/gson-2.11.0.jar;${libpath}/pdfbox-io-3.0.3.jar;${libpath}/apache-pdfbox-utils-1.0.0.jar;${libpath}/error_prone_annotations-2.27.0.jar`
const java_classpath2 = `${libpath}/node-pdfbox-util.jar`;
const defaultJavaPath = 'java';
class NodePdfBoxUtilsBasic {
static getDocumentText(filePath_1, outputFile_1) {
return __awaiter(this, arguments, void 0, function* (filePath, outputFile, options = {}) {
let bufferSize = NodePdfBoxUtilsBasic.getOptionValue(options, "buffer", defaultBuffer);
let javaPath = NodePdfBoxUtilsBasic.getOptionValue(options, "javaPath", defaultJavaPath);
// const encodedOptions = stingtobase64(JSON.stringify(options));
//si outputFile no está definido, lo definimos como "<|empty|>"
let outputFileForClass = outputFile === "" ? "-empty-" : outputFile;
const encodedOptions = (0, utils_1.stingtobase64)(JSON.stringify(options));
const command = `${javaPath} -classpath ${java_classpath2} com.node.laucher.PdfToText`;
const params = `${(0, utils_1.stingtobase64)(filePath)} ${(0, utils_1.stingtobase64)(outputFileForClass)} ${encodedOptions}`;
const result = child_process_1.default.execSync(`${command} ${params}`, { maxBuffer: 1024 * 1024 * bufferSize });
const obj = NodePdfBoxUtilsBasic.extractJSONFromResult(result.toString());
//devolvemos el objeto
return obj;
});
}
static getDocumentInfo(filePath_1) {
return __awaiter(this, arguments, void 0, function* (filePath, options = {}) {
let bufferSize = NodePdfBoxUtilsBasic.getOptionValue(options, "buffer", defaultBuffer);
let javaPath = NodePdfBoxUtilsBasic.getOptionValue(options, "javaPath", defaultJavaPath);
// const encodedOptions = stingtobase64(JSON.stringify(options));
//si outputFile no está definido, lo definimos como "<|empty|>"
const command = `${javaPath} -classpath ${java_classpath2} com.node.laucher.PdfInfo`;
const params = `${(0, utils_1.stingtobase64)(filePath)}`;
const result = child_process_1.default.execSync(`${command} ${params}`, { maxBuffer: 1024 * 1024 * bufferSize });
const obj = NodePdfBoxUtilsBasic.extractJSONFromResult(result.toString());
//devolvemos el objeto
return obj;
});
}
static splitDocument(filePath_1, outputPath_1) {
return __awaiter(this, arguments, void 0, function* (filePath, outputPath, options = {}) {
let bufferSize = NodePdfBoxUtilsBasic.getOptionValue(options, "buffer", defaultBuffer);
let javaPath = NodePdfBoxUtilsBasic.getOptionValue(options, "javaPath", defaultJavaPath);
const encodedOptions = (0, utils_1.stingtobase64)(JSON.stringify(options));
//si outputFile no está definido, lo definimos como "<|empty|>"
const command = `${javaPath} -classpath ${java_classpath2} com.node.laucher.PdfSplit`;
const params = `${(0, utils_1.stingtobase64)(filePath)} ${(0, utils_1.stingtobase64)(outputPath)} ${encodedOptions}`;
const result = child_process_1.default.execSync(`${command} ${params}`, { maxBuffer: 1024 * 1024 * bufferSize });
const obj = NodePdfBoxUtilsBasic.extractJSONFromResult(result.toString());
//devolvemos el objeto
return obj;
});
}
static convertPdfToImage(filePath_1, fromPage_1, toPage_1, outputPath_1) {
return __awaiter(this, arguments, void 0, function* (filePath, fromPage, toPage, outputPath, options = {}) {
let bufferSize = NodePdfBoxUtilsBasic.getOptionValue(options, "buffer", defaultBuffer);
let javaPath = NodePdfBoxUtilsBasic.getOptionValue(options, "javaPath", defaultJavaPath);
const command = `${javaPath} -classpath ${java_classpath2} com.node.laucher.PdfToImage`;
const encodedOptions = (0, utils_1.stingtobase64)(JSON.stringify(options));
const params = `${(0, utils_1.stingtobase64)(filePath)} ${fromPage} ${toPage} ${(0, utils_1.stingtobase64)(outputPath)} ${encodedOptions}`;
const result = child_process_1.default.execSync(`${command} ${params}`, { maxBuffer: 1024 * 1024 * bufferSize });
const obj = NodePdfBoxUtilsBasic.extractJSONFromResult(result.toString());
//devolvemos el objeto
return obj;
});
}
static obfuscateDocument(filePath_1, outputFile_1) {
return __awaiter(this, arguments, void 0, function* (filePath, outputFile, options = {}) {
let bufferSize = NodePdfBoxUtilsBasic.getOptionValue(options, "buffer", defaultBuffer);
let javaPath = NodePdfBoxUtilsBasic.getOptionValue(options, "javaPath", defaultJavaPath);
const command = `${javaPath} -classpath ${java_classpath2} com.node.laucher.PdfObfuscate`;
const params = `${(0, utils_1.stingtobase64)(filePath)} ${(0, utils_1.stingtobase64)(outputFile)} ${(0, utils_1.stingtobase64)(JSON.stringify(options))}`;
const result = child_process_1.default.execSync(`${command} ${params}`, { maxBuffer: 1024 * 1024 * bufferSize });
const obj = NodePdfBoxUtilsBasic.extractJSONFromResult(result.toString());
//devolvemos el objeto
return obj;
});
}
static extractJSONFromResult(result) {
//cogemos result.toString() y nos quedamos desde ```JSON: hasta el final del string menos 3 caracteres
const json = result.substring(result.indexOf("JSON:") + 5, result.length - 3);
//decodificamos el json porque se recibe en base64
const decodedJsonString = (0, utils_1.base64tostring)(json);
//convertimos el json a objeto
const obj = JSON.parse(decodedJsonString);
//devolvemos el objeto
return obj;
}
static getOptionValue(options, key, defaultValue) {
if (options) {
if (typeof options !== 'object') {
throw new Error("options must be a json object");
}
if (options[key]) {
return options[key];
}
}
return defaultValue;
}
}
exports.NodePdfBoxUtilsBasic = NodePdfBoxUtilsBasic;