pandora/static/pdf.js/pdf.sandbox.js

/**
 * @licstart The following is the entire license notice for the
 * JavaScript code in this page
 *
 * Copyright 2023 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @licend The above is the entire license notice for the
 * JavaScript code in this page
 */

(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = root.pdfjsSandbox = factory();
	else if(typeof define === 'function' && define.amd)
		define("pdfjs-dist/build/pdf.sandbox", [], () => { return (root.pdfjsSandbox = factory()); });
	else if(typeof exports === 'object')
		exports["pdfjs-dist/build/pdf.sandbox"] = root.pdfjsSandbox = factory();
	else
		root["pdfjs-dist/build/pdf.sandbox"] = root.pdfjsSandbox = factory();
})(globalThis, () => {
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/***/ ((__unused_webpack_module, exports) => {

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/***/ }),
/* 2 */
/***/ ((__unused_webpack_module, exports) => {



Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.SandboxSupportBase = void 0;
class SandboxSupportBase {
  constructor(win) {
    this.win = win;
    this.timeoutIds = new Map();
    this.commFun = null;
  }
  destroy() {
    this.commFun = null;
    for (const id of this.timeoutIds.values()) {
      this.win.clearTimeout(id);
    }
    this.timeoutIds = null;
  }
  exportValueToSandbox(val) {
    throw new Error("Not implemented");
  }
  importValueFromSandbox(val) {
    throw new Error("Not implemented");
  }
  createErrorForSandbox(errorMessage) {
    throw new Error("Not implemented");
  }
  callSandboxFunction(name, args) {
    try {
      args = this.exportValueToSandbox(args);
      this.commFun(name, args);
    } catch (e) {
      this.win.console.error(e);
    }
  }
  createSandboxExternals() {
    const externals = {
      setTimeout: (callbackId, nMilliseconds) => {
        if (typeof callbackId !== "number" || typeof nMilliseconds !== "number") {
          return;
        }
        if (callbackId === 0) {
          this.win.clearTimeout(this.timeoutIds.get(callbackId));
        }
        const id = this.win.setTimeout(() => {
          this.timeoutIds.delete(callbackId);
          this.callSandboxFunction("timeoutCb", {
            callbackId,
            interval: false
          });
        }, nMilliseconds);
        this.timeoutIds.set(callbackId, id);
      },
      clearTimeout: callbackId => {
        this.win.clearTimeout(this.timeoutIds.get(callbackId));
        this.timeoutIds.delete(callbackId);
      },
      setInterval: (callbackId, nMilliseconds) => {
        if (typeof callbackId !== "number" || typeof nMilliseconds !== "number") {
          return;
        }
        const id = this.win.setInterval(() => {
          this.callSandboxFunction("timeoutCb", {
            callbackId,
            interval: true
          });
        }, nMilliseconds);
        this.timeoutIds.set(callbackId, id);
      },
      clearInterval: callbackId => {
        this.win.clearInterval(this.timeoutIds.get(callbackId));
        this.timeoutIds.delete(callbackId);
      },
      alert: cMsg => {
        if (typeof cMsg !== "string") {
          return;
        }
        this.win.alert(cMsg);
      },
      confirm: cMsg => {
        if (typeof cMsg !== "string") {
          return false;
        }
        return this.win.confirm(cMsg);
      },
      prompt: (cQuestion, cDefault) => {
        if (typeof cQuestion !== "string" || typeof cDefault !== "string") {
          return null;
        }
        return this.win.prompt(cQuestion, cDefault);
      },
      parseURL: cUrl => {
        const url = new this.win.URL(cUrl);
        const props = ["hash", "host", "hostname", "href", "origin", "password", "pathname", "port", "protocol", "search", "searchParams", "username"];
        return Object.fromEntries(props.map(name => [name, url[name].toString()]));
      },
      send: data => {
        if (!data) {
          return;
        }
        const event = new this.win.CustomEvent("updatefromsandbox", {
          detail: this.importValueFromSandbox(data)
        });
        this.win.dispatchEvent(event);
      }
    };
    Object.setPrototypeOf(externals, null);
    return (name, args) => {
      try {
        const result = externals[name](...args);
        return this.exportValueToSandbox(result);
      } catch (error) {
        throw this.createErrorForSandbox(error?.toString() ?? "");
      }
    };
  }
}
exports.SandboxSupportBase = SandboxSupportBase;

/***/ })
/******/ 	]);
/************************************************************************/
/******/ 	// The module cache
/******/ 	var __webpack_module_cache__ = {};
/******/ 	
/******/ 	// The require function
/******/ 	function __w_pdfjs_require__(moduleId) {
/******/ 		// Check if module is in cache
/******/ 		var cachedModule = __webpack_module_cache__[moduleId];
/******/ 		if (cachedModule !== undefined) {
/******/ 			return cachedModule.exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = __webpack_module_cache__[moduleId] = {
/******/ 			// no module.id needed
/******/ 			// no module.loaded needed
/******/ 			exports: {}
/******/ 		};
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/******/ 		// Execute the module function
/******/ 		__webpack_modules__[moduleId](module, module.exports, __w_pdfjs_require__);
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var __webpack_exports__ = {};
// This entry need to be wrapped in an IIFE because it need to be isolated against other modules in the chunk.
(() => {
var exports = __webpack_exports__;


Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.QuickJSSandbox = QuickJSSandbox;
var _quickjsEval = _interopRequireDefault(__w_pdfjs_require__(1));
var _pdfSandboxExternal = __w_pdfjs_require__(2);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
const pdfjsVersion = '3.11.176';
const pdfjsBuild = '92d22853e';
class SandboxSupport extends _pdfSandboxExternal.SandboxSupportBase {
  exportValueToSandbox(val) {
    return JSON.stringify(val);
  }
  importValueFromSandbox(val) {
    return val;
  }
  createErrorForSandbox(errorMessage) {
    return new Error(errorMessage);
  }
}
class Sandbox {
  constructor(win, module) {
    this.support = new SandboxSupport(win, this);
    module.externalCall = this.support.createSandboxExternals();
    this._module = module;
    this._alertOnError = 0;
  }
  create(data) {
    const code = ['(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === \'object\' && typeof module === \'object\')\n\t\tmodule.exports = root.pdfjsScripting = factory();\n\telse if(typeof define === \'function\' && define.amd)\n\t\tdefine("pdfjs-dist/build/pdf.scripting", [], () => { return (root.pdfjsScripting = factory()); });\n\telse if(typeof exports === \'object\')\n\t\texports["pdfjs-dist/build/pdf.scripting"] = root.pdfjsScripting = factory();\n\telse\n\t\troot["pdfjs-dist/build/pdf.scripting"] = root.pdfjsScripting = factory();\n})(globalThis, () => {\nreturn /******/ (() => { // webpackBootstrap\n/******/ \t"use strict";\n/******/ \tvar __webpack_modules__ = ([\n/* 0 */,\n/* 1 */\n/***/ ((__unused_webpack_module, exports, __w_pdfjs_require__) => {\n\n\n\nObject.defineProperty(exports, "__esModule", ({\n  value: true\n}));\nexports.initSandbox = initSandbox;\nvar _constants = __w_pdfjs_require__(2);\nvar _field = __w_pdfjs_require__(3);\nvar _aform = __w_pdfjs_require__(8);\nvar _app = __w_pdfjs_require__(9);\nvar _color = __w_pdfjs_require__(5);\nvar _console = __w_pdfjs_require__(14);\nvar _doc = __w_pdfjs_require__(15);\nvar _proxy = __w_pdfjs_require__(17);\nvar _app_utils = __w_pdfjs_require__(10);\nvar _util = __w_pdfjs_require__(18);\nfunction initSandbox(params) {\n  delete globalThis.pdfjsScripting;\n  const externalCall = globalThis.callExternalFunction;\n  delete globalThis.callExternalFunction;\n  const globalEval = code => globalThis.eval(code);\n  const send = data => externalCall("send", [data]);\n  const proxyHandler = new _proxy.ProxyHandler();\n  const {\n    data\n  } = params;\n  const doc = new _doc.Doc({\n    send,\n    globalEval,\n    ...data.docInfo\n  });\n  const _document = {\n    obj: doc,\n    wrapped: new Proxy(doc, proxyHandler)\n  };\n  const app = new _app.App({\n    send,\n    globalEval,\n    externalCall,\n    _document,\n    calculationOrder: data.calculationOrder,\n    proxyHandler,\n    ...data.appInfo\n  });\n  const util = new _util.Util({\n    externalCall\n  });\n  const appObjects = app._objects;\n  if (data.objects) {\n    const annotations = [];\n    for (const [name, objs] of Object.entries(data.objects)) {\n      annotations.length = 0;\n      let container = null;\n      for (const obj of objs) {\n        if (obj.type !== "") {\n          annotations.push(obj);\n        } else {\n          container = obj;\n        }\n      }\n      let obj = container;\n      if (annotations.length > 0) {\n        obj = annotations[0];\n        obj.send = send;\n      }\n      obj.globalEval = globalEval;\n      obj.doc = _document;\n      obj.fieldPath = name;\n      obj.appObjects = appObjects;\n      let field;\n      switch (obj.type) {\n        case "radiobutton":\n          {\n            const otherButtons = annotations.slice(1);\n            field = new _field.RadioButtonField(otherButtons, obj);\n            break;\n          }\n        case "checkbox":\n          {\n            const otherButtons = annotations.slice(1);\n            field = new _field.CheckboxField(otherButtons, obj);\n            break;\n          }\n        case "text":\n          if (annotations.length <= 1) {\n            field = new _field.Field(obj);\n            break;\n          }\n          obj.siblings = annotations.map(x => x.id).slice(1);\n          field = new _field.Field(obj);\n          break;\n        default:\n          field = new _field.Field(obj);\n      }\n      const wrapped = new Proxy(field, proxyHandler);\n      const _object = {\n        obj: field,\n        wrapped\n      };\n      doc._addField(name, _object);\n      for (const object of objs) {\n        appObjects[object.id] = _object;\n      }\n      if (container) {\n        appObjects[container.id] = _object;\n      }\n    }\n  }\n  const color = new _color.Color();\n  globalThis.event = null;\n  globalThis.global = Object.create(null);\n  globalThis.app = new Proxy(app, proxyHandler);\n  globalThis.color = new Proxy(color, proxyHandler);\n  globalThis.console = new Proxy(new _console.Co
    code.push("delete dump;");
    let success = false;
    let buf = 0;
    try {
      const sandboxData = JSON.stringify(data);
      code.push(`pdfjsScripting.initSandbox({ data: ${sandboxData} })`);
      buf = this._module.stringToNewUTF8(code.join("\n"));
      success = !!this._module.ccall("init", "number", ["number", "number"], [buf, this._alertOnError]);
    } catch (error) {
      console.error(error);
    } finally {
      if (buf) {
        this._module.ccall("free", "number", ["number"], [buf]);
      }
    }
    if (success) {
      this.support.commFun = this._module.cwrap("commFun", null, ["string", "string"]);
    } else {
      this.nukeSandbox();
      throw new Error("Cannot start sandbox");
    }
  }
  dispatchEvent(event) {
    this.support?.callSandboxFunction("dispatchEvent", event);
  }
  dumpMemoryUse() {
    this._module?.ccall("dumpMemoryUse", null, []);
  }
  nukeSandbox() {
    if (this._module !== null) {
      this.support.destroy();
      this.support = null;
      this._module.ccall("nukeSandbox", null, []);
      this._module = null;
    }
  }
  evalForTesting(code, key) {
    throw new Error("Not implemented: evalForTesting");
  }
}
function QuickJSSandbox() {
  return (0, _quickjsEval.default)().then(module => {
    return new Sandbox(window, module);
  });
}
})();

/******/ 	return __webpack_exports__;
/******/ })()
;
});
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