So I’m answering to myself — and sorry for that — but I think it might be useful for someone as lost as I was 😉 So you have to use ArrayBuffer and set the responseType property of your XMLHttpRequest object instance to arraybuffer for retrieving a native array of Bytes, which can be converted to base64 … Read more
Base64 converts your data to an ASCII representation of the binary data. It allows you to embed your data in text streams such as JSON for example. Base64 increases the size of the data transferred by 33%. multipart/form-data is the standard way of transferring binary data in HTTP requests. It allows you to use specific … Read more
Use File.ReadAllBytes to load the PDF file, and then encode the byte array as normal using Convert.ToBase64String(bytes). Byte[] fileBytes = File.ReadAllBytes(@”TestData\example.pdf”); var content = Convert.ToBase64String(fileBytes);
The simplest approach would be: Array to json to base64: import json import base64 data = [0, 1, 0, 0, 83, 116, -10] dataStr = json.dumps(data) base64EncodedStr = base64.b64encode(dataStr.encode(‘utf-8’)) print(base64EncodedStr) print(‘decoded’, base64.b64decode(base64EncodedStr)) Prints out: >>> WzAsIDEsIDAsIDAsIDgzLCAxMTYsIC0xMF0= >>> (‘decoded’, ‘[0, 1, 0, 0, 83, 116, -10]’) # json.loads here ! … another option could be using … Read more
Modified Base64 (when /,= and + are replaced) is safe to create names but does not guarantee reverse transformation due to case insensitivity of many file systems and urls. Base64 is case sensitive, so it will not guarantee 1-to-1 mapping in cases of case insensitive file systems (all Windows files systems, ignoring POSIX subsystem cases). … Read more
Thanks for that. I’ve done a bit more digging on this and it turns out there is a solution at least on current versions of Firefox and Chrome (EDIT: IE10 works too). You can use XMLHttpRequest2 and use a typed array (Uint8Array). The following code works: <!DOCTYPE html> <html> <head> <script type=”text/javascript”> function init() { … Read more
This is based on the NewCFBEncrypter / NewCFBDecrypter examples and seems to do what you require: EDIT: Based on Kluyg’s comment regarding IV creation I’ve modified the example code to use the recommended method of creating the IV from the ciphertext same method as the linked example to create the IV from the ciphertext. (In … Read more
That doesn’t look like the correct way to use the Audio constructor for HTMLAudioElement / <audio>. Slight adjustment var snd = new Audio(“data:audio/wav;base64,” + base64string); snd.play(); If it works in console but not in script, it may be getting garbage collected, in which case scope it so it will stay var Sound = (function () … Read more
0x0a is a newline character which is forbidden in a header. Solution would be to make sure that these characters are stripped off before sending the encoded value as header. Base64.encodeToString(credentials.getBytes(), Base64.NO_WRAP); this avoids wrapping with a platform specific newline character(s).
This is a terrible hack, bound to be incompatible with future versions of the framework and so on. But it works! (on my machine…) Uri uri = new Uri(“http://example.com/%2F”); ForceCanonicalPathAndQuery(uri); using (WebClient webClient = new WebClient()) { webClient.DownloadData(uri); } void ForceCanonicalPathAndQuery(Uri uri){ string paq = uri.PathAndQuery; // need to access PathAndQuery FieldInfo flagsFieldInfo = typeof(Uri).GetField(“m_Flags”, … Read more