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Get Base64 encode file-data from Input Form
...ipt.
The easy way:
The readAsDataURL() method might already encode it as base64 for you. You'll probably need to strip out the beginning stuff (up to the first ,), but that's no biggie. This would take all the fun out though.
The hard way:
If you want to try it the hard way (or it doesn't work),...
Base64: What is the worst possible increase in space usage?
If a server received a base64 string and wanted to check it's length before converting,, say it wanted to always permit the final byte array to be 16KB. How big could a 16KB byte array possibly become when converted to a Base64 string (assuming one byte per character)?
...
How can I set Image source with base64
I want to set the Image source to a base64 source but it does not work:
4 Answers
4
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Python base64 data decode
I have the following piece of base64 encoded data, and I want to use python base64 module to extract information from it. It seems that module does not work. Can anyone tell me how?
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How to save an HTML5 Canvas as an image on a server?
...ntext.stroke();
</script>
Convert canvas image to URL format (base64)
var dataURL = canvas.toDataURL();
Send it to your server via Ajax
$.ajax({
type: "POST",
url: "script.php",
data: {
imgBase64: dataURL
}
}).done(function(o) {
con...
Hash function that produces short hashes?
...duce a sub-10-character hash? I want to produce reasonably unique ID's but based on message contents, rather than randomly.
...
Adding header for HttpURLConnection
...redentials = "username:password";
String basicAuth = "Basic " + new String(Base64.getEncoder().encode(userCredentials.getBytes()));
myURLConnection.setRequestProperty ("Authorization", basicAuth);
myURLConnection.setRequestMethod("POST");
myURLConnection.setRequestProperty("Content-Type", "applicat...
Best way to create unique token in Rails?
...when using Ruby 1.9 and ActiveRecord):
class ModelName < ActiveRecord::Base
before_create :generate_token
protected
def generate_token
self.token = loop do
random_token = SecureRandom.urlsafe_base64(nil, false)
break random_token unless ModelName.exists?(token: random_to...
Load RSA public key from file
...eys.
The der format can be obtained but saving raw data ( without encoding base64).
I hope this helps programmers.
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStr...
How to serialize an object into a string
...t. I would like to serialize the object into a string and store into a database instead. Can anyone help me?
13 Answers
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