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// check file size before uploading if browser support html5
if (window.File && window.FileList) {
function checkFileUpload(evt) {
var f = evt.target.files[0];
if (f.size > max_upload_size) {
document.getElementById('upload_button').value = "File too big";
document.getElementById('upload_button').disabled = true;
} else {
document.getElementById('upload_button').value = "Upload";
document.getElementById('upload_button').disabled = false;
}
}
document.getElementById('file').addEventListener('change', checkFileUpload, false);
}
function encode64(inp){
var key="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
var chr1,chr2,chr3,enc3,enc4,i=0,out="";
while(i<inp.length){
chr1=inp.charCodeAt(i++);if(chr1>127) chr1=88;
chr2=inp.charCodeAt(i++);if(chr2>127) chr2=88;
chr3=inp.charCodeAt(i++);if(chr3>127) chr3=88;
if(isNaN(chr3)) {enc4=64;chr3=0;} else enc4=chr3&63
if(isNaN(chr2)) {enc3=64;chr2=0;} else enc3=((chr2<<2)|(chr3>>6))&63
out+=key.charAt((chr1>>2)&63)+key.charAt(((chr1<<4)|(chr2>>4))&63)+key.charAt(enc3)+key.charAt(enc4);
}
return encodeURIComponent(out);
}
function gen_boundary() {
var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
var string_length = 40;
var randomstring = '';
for (var i=0; i<string_length; i++) {
var rnum = Math.floor(Math.random() * chars.length);
randomstring += chars.substring(rnum,rnum+1);
}
return randomstring;
}
function do_paste() {
var http = new XMLHttpRequest();
var CRLF = "\r\n";
var boundary = "--" + gen_boundary();
var body = "--" + boundary + CRLF
+ 'Content-Disposition: form-data; name="file"; filename="stdin"' + CRLF
+ "Content-Type: text/plain" + CRLF
+ CRLF
+ document.getElementById("textarea").value + CRLF
+ "--" + boundary + "--" + CRLF + CRLF;
http.open("POST", upload_url, true);
//Send the proper header information along with the request
http.setRequestHeader("Content-type", "multipart/form-data; boundary=" + boundary);
http.onreadystatechange = function() {
if(http.readyState == 4 && http.status == 200) {
window.location = http.responseText;
}
}
http.send(body);
}
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