pdf - CASPERJS ajax binary response inside evaluate() -
in project have download pdf server filling post form.
casper offers .download() - not working: have set several headers before send request.
phantom offers .customheaders() - not working: have no idea.
i have progress sending request ajax, emulating form fields.
var =this.evaluate(function() { try{ var http = new xmlhttprequest(); var ok = false;//return var var form = document.forms.nameditem('atlform');//get form var data = {};//params for(var = 0; < form.elements.length; i++) {//params populated data[form.elements[i].name] = encodeuricomponent(form.elements[i].value); } var url = form.action;//self expl. var dataf = object.keys(data).map(function(key) { return key + '=' + data[key]; }).join('&');//param string format http.open("post", url, false);//open sync call http.setrequestheader("accept","text/html,application/xhtml+xml,application/xml;q=0.9,application/pdf,image/webp,image/apng,*/*;q=0.8"); //[more headers] http.onreadystatechange = function() { if(http.readystate == 4 && http.status == 200) { ok=http.responsetext; } else{return false;} }; http.send(dataf); return ok; }catch(err){return err.message;} }); console.log(a); var fs = require('fs'); fs.write('pdf.pdf',a, 'w'); the code above correct. pdf file pdf headers, 140 lines on notepad (as expected), content blank. ajax response changed ascii, turning pdf trashy blank page, , further came.
setting http.responsetype = "arraybuffer" should solve problem, works in async calls.
the solution async ajax, console.log(a); line prints null, wait(), waitfor(), setinterval()//inside evaluate. can't response inside evaluate() , can/could/maybe put callback inside evaluate() i'm hopeless now. suggestions?
Comments
Post a Comment