Created
April 19, 2013 19:57
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Using headless browser to load web page, get image info given image url and get price info given class name.
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| var casper = require('casper').create({ | |
| clientScripts: ["jquery.min.js","svpply.js","svpply2.js","buy_later_tool_kit"], | |
| verbose: true, | |
| viewportSize: {width: 1800, height: 1400} | |
| }); | |
| var dump = require("utils").dump; | |
| var url = 'http://www.manufactum.com/shirts-tops-c193634/' | |
| var imgurl = 'http://images.manufactum.de/manufactum/thumbs_188/72612_1.jpg' | |
| var fs = require('fs'); | |
| casper.start(url, function() { | |
| }); | |
| var countLinks = function() { | |
| var count; | |
| count = $(".price").length; | |
| return count | |
| }; | |
| casper.then(function() { | |
| this.echo(this.evaluate(countLinks)); | |
| }) | |
| var img = function _x() { | |
| var imgurl = 'http://images.manufactum.de/manufactum/thumbs_188/72612_1.jpg' | |
| var url; | |
| var index; | |
| var i=0; | |
| count = $('img').length; | |
| url = $('img'); | |
| while(i<count){ | |
| if(url[i].src==imgurl) | |
| break; | |
| else | |
| i++;} | |
| return i | |
| } | |
| casper.thenOpen(url,function(){ | |
| this.echo(this.evaluate(img)) | |
| }) | |
| casper.thenOpen(url, function(){ | |
| dump(this.getElementInfo({type:'xpath',path:'//img[@src="'+imgurl+'"]'})); | |
| //fs.write('Price_result.json',this.fetchText({type:'xpath',path:'//*[@class="price"]'}),'a') | |
| fs.write('Img_info.json', | |
| [this.getElementInfo({type:'xpath',path:'//img[@src="'+imgurl+'"]'}).x, | |
| this.getElementInfo({type:'xpath',path:'//img[@src="'+imgurl+'"]'}).y, | |
| this.getElementInfo({type:'xpath',path:'//img[@src="'+imgurl+'"]'}).width, | |
| this.getElementInfo({type:'xpath',path:'//img[@src="'+imgurl+'"]'}).height, | |
| this.getElementInfo({type:'xpath',path:'//img[@src="'+imgurl+'"]'}).visible],'rw'); | |
| //Retrieves information about the first element matching the provided selector(Only the first element, so that can't get all price in this way) | |
| fs.write('Price_result.json', | |
| [this.getElementInfo({type:'xpath',path:'//*[@class="price"]'}).text, | |
| this.getElementInfo({type:'xpath',path:'//*[@class="price"]'}).x, | |
| this.getElementInfo({type:'xpath',path:'//*[@class="price"]'}).y, | |
| this.getElementInfo({type:'xpath',path:'//*[@class="price"]'}).width, | |
| this.getElementInfo({type:'xpath',path:'//*[@class="price"]'}).height, | |
| this.getElementInfo({type:'xpath',path:'//*[@class="price"]'}).visible + '\n'],'a') | |
| } ); | |
| casper.run() |
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