base64

问题 I am using PowerShell to make a condition selection, need to judge whether the string is Base64 encoded, What is the easiest and most direct way? if ($item -is [?base64]) { # handle strings or characters } 回答1: The following returns $true if $item contains a valid Base64-encoded string , and $false otherwise: try { $null=[Convert]::FromBase64String($item); $true } catch { $false } The above uses System.Convert.FromBase64String to try to convert input string $item to the array of bytes it

问题 I am using PowerShell to make a condition selection, need to judge whether the string is Base64 encoded, What is the easiest and most direct way? if ($item -is [?base64]) { # handle strings or characters } 回答1: The following returns $true if $item contains a valid Base64-encoded string , and $false otherwise: try { $null=[Convert]::FromBase64String($item); $true } catch { $false } The above uses System.Convert.FromBase64String to try to convert input string $item to the array of bytes it

问题 I am using PowerShell to make a condition selection, need to judge whether the string is Base64 encoded, What is the easiest and most direct way? if ($item -is [?base64]) { # handle strings or characters } 回答1: The following returns $true if $item contains a valid Base64-encoded string , and $false otherwise: try { $null=[Convert]::FromBase64String($item); $true } catch { $false } The above uses System.Convert.FromBase64String to try to convert input string $item to the array of bytes it

问题 So I'm pretty new to the Web Audio API, having only heard about it 4 days ago (though since then I've put in probably about 50 hours of research and experimentation with it). I'm also more of a novice at javascript. Situation: I'm trying to develop a script that will take Google's TTS return from the API (which is encoded as a base64 string) and transfer it to an arrayBuffer for use in the Web Audio API so that I can send it through some of the nodes. I've already got the return from the

问题 So I'm pretty new to the Web Audio API, having only heard about it 4 days ago (though since then I've put in probably about 50 hours of research and experimentation with it). I'm also more of a novice at javascript. Situation: I'm trying to develop a script that will take Google's TTS return from the API (which is encoded as a base64 string) and transfer it to an arrayBuffer for use in the Web Audio API so that I can send it through some of the nodes. I've already got the return from the

问题 So I get different signatures for the same JWT. Header : { "alg": "HS512", "typ": "JWT" } Payload : { "sub": "1234567890", "name": "John Doe", "iat": 1516239022 } as a signing key I used " abc " The resulting JWT from jwt.io is the following: eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.sNgS2IRq0LCvUaIzg9dCBVvmY_9KnrXDEmKTii6U4APbRMeUkU084wf3h5v4baP2WeZOyGunCTEa9wxh25IW6w if I calculate the signature with python like this:

问题 I'm trying to encode and decode the same image file using python using following simple code. But every time output file is larger than input file and it can't open. What's the problem in this code? import base64 with open("img.jpeg", "rb") as image_file: encoded_string = base64.b64encode(image_file.read()) decoded_string = base64.b64decode(encoded_string) with open("test_img.jpeg", "w") as image_file2: image_file2.write(decoded_string); Original file: https://filebin.ca/3j6aIDlWEYdV/img.jpeg

问题 I'm building a ChatBot app using Dialogflow and I want to implement Voice Recognition feature in my app. As you know Dialogflow provide us a feature to detect intent on the basis of audio but it only accepts audio in the form of base64. The problem for me is that I'm unable to encode the audio file into Base64. I'm new to Flutter Development so if in case I'm missing something or doing it in a wrong way then please let me know. Thanks! I've tried this method but it's not giving me the proper

问题 I'm building a ChatBot app using Dialogflow and I want to implement Voice Recognition feature in my app. As you know Dialogflow provide us a feature to detect intent on the basis of audio but it only accepts audio in the form of base64. The problem for me is that I'm unable to encode the audio file into Base64. I'm new to Flutter Development so if in case I'm missing something or doing it in a wrong way then please let me know. Thanks! I've tried this method but it's not giving me the proper

问题 I want to pass a blowfish encrypted string in a URL, and want to encode it like base64, but without any special character, something like base62 would be great (0-9a-zA-Z). So what I'm trying to do is converting the blowfish encrypted string using base64_encode, and convert base64 to base62. I know about solutions how to make base64 url-safe, but I really don't want any special character in the string. convert_base() only works with base up to 36, the math extensions can convert up to base 62