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98 lines
3.6 KiB
JavaScript
98 lines
3.6 KiB
JavaScript
/*!
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* Casper is a navigation utility for PhantomJS.
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*
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* Documentation: http://casperjs.org/
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* Repository: http://github.com/n1k0/casperjs
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*
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* Copyright (c) 2011-2012 Nicolas Perriault
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*
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* Part of source code is Copyright Joyent, Inc. and other Node contributors.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*/
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/*global CasperError console encodeURIComponent escape exports require*/
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// WARNING: this module is deprecated since CasperJS 1.0.0-RC3
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var utils = require('utils');
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exports.create = function create(fn) {
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"use strict";
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return new FunctionArgsInjector(fn);
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};
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/**
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* Function argument injector.
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*
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* FIXME: use new Function() instead of eval()
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*/
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var FunctionArgsInjector = function FunctionArgsInjector(fn) {
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"use strict";
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console.error('Warning: the injector module has been deprecated.');
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if (!utils.isFunction(fn)) {
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throw new CasperError("FunctionArgsInjector() can only process functions");
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}
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this.fn = fn;
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this.extract = function extract(fn) {
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var match = /^function\s?(\w+)?\s?\((.*)\)\s?\{([\s\S]*)\}/i.exec(fn.toString().trim());
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if (match && match.length > 1) {
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var args = match[2].split(',').map(function _map(arg) {
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return arg.replace(new RegExp(/\/\*+.*\*\//ig), "").trim();
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}).filter(function _filter(arg) {
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return arg;
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}) || [];
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return {
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name: match[1] ? match[1].trim() : null,
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args: args,
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body: match[3] ? match[3].trim() : ''
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};
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}
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};
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this.process = function process(values) {
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var fnObj = this.extract(this.fn);
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if (!utils.isObject(fnObj)) {
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throw new CasperError("Unable to process function " + this.fn.toString());
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}
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var inject = this.getArgsInjectionString(fnObj.args, values);
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var newFn = new Function([inject, fnObj.body].join('\n'));
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newFn.name = fnObj.name || '';
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return newFn;
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};
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this.getArgsInjectionString = function getArgsInjectionString(args, values) {
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values = typeof values === "object" ? values : {};
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var jsonValues = escape(encodeURIComponent(JSON.stringify(values)));
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var inject = [
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'var __casper_params__ = JSON.parse(decodeURIComponent(unescape(\'' + jsonValues + '\')));'
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];
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args.forEach(function _forEach(arg) {
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if (arg in values) {
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inject.push('var ' + arg + '=__casper_params__["' + arg + '"];');
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}
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});
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return inject.join('\n') + '\n';
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};
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};
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exports.FunctionArgsInjector = FunctionArgsInjector;
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