Base64Decoder Returns an empty string

[souk]

In a string encoded in urlencode, purebasic returns an empty string, under other conditions, decoding occurs correctly.

Code: Select all

Procedure.s DecodeOnlyBase64(Text$)
       Protected *memDecod = AllocateMemory(Len(Text$))
      Base64Decoder(Text$, *memDecod, Len(Text$))
      Text$= PeekS(*memDecod , -1, #PB_UTF8)
      FreeMemory(*memDecod)
   ProcedureReturn Text$
 EndProcedure 
 
 st.s= "AAskAAAAAAATX2Zsb2F0JTNCV0VCR0xfY29tcHJlc3NlZF90ZXh0dXJlX3MzdGMlM0JXRUJLSVRfV0VCR0xfY29tcHJlc3NlZF90ZXh0dXJlX3MzdGMlM0JXRUJHTF9jb21wcmVzc2VkX3RleHR1cmVfczN0Y19zcmdiJTNCV0VCR0xfZGVidWdfcmVuZGVyZXJfaW5mbyUzQldFQkdMX2RlYnVnX3NoYWRlcnMlM0JXRUJHTF9kZXB0aF90ZXh0dXJlJTNCV0VCS0lUX1dFQkdMX2RlcHRoX3RleHR1cmUlM0JXRUJHTF9kcmF3X2J1ZmZlcnMlM0JXRUJHTF9sb3NlX2NvbnRleHQlM0JXRUJLSVRfV0VCR0xfbG9zZV9jb250ZXh0JTIyJTJDJTIyYWxpYXNlZGxpbmV3aWR0aHJhbmdlJTIyJTNBJTIyJTVCMSUyQzElNUQlMjIlMkMlMjJhbGlhc2VkcG9pbnRzaXplcmFuZ2UlMjIlM0ElMjIlNUIxJTJDMTAyNCU1RCUyMiUyQyUyMmFscGhhYml0cyUyMiUzQTglMkMlMjJhbnRpYWxpYXNpbmclMjIlM0ElMjJ5ZXMlMjIlMkMlMjJibHVlYml0cyUyMiUzQTglMkMlMjJkZXB0aGJpdHMlMjIlM0EyNCUyQyUyMmdyZWVuYml0cyUyMiUzQTglMkMlMjJtYXhhbmlzb3Ryb3B5JTIyJTNBMTYlMkMlMjJtYXhjb21iaW5lZHRleHR1cmVpbWFnZXVuaXRzJTIyJTNBMzIlMkMlMjJtYXhjdWJlbWFwdGV4dHVyZXNpemUlMjIlM0ExNjM4NCUyQyUyMm1heGZyYWdtZW50dW5pZm9ybXZlY3RvcnMlMjIlM0ExMDI0JTJDJTIybWF4cmVuZGVyYnVmZmVyc2l6ZSUyMiUzQTE2Mzg0JTJDJTIybWF4dGV4dHVyZWltYWdldW5pdHMlMjIlM0ExNiUyQyUyMm1heHRleHR1cmVzaXplJTIyJTNBMTYzODQlMkMlMjJtYXh2YXJ5aW5ndmVjdG9ycyUyMiUzQTMwJTJDJTIybWF4dmVydGV4YXR0cmlicyUyMiUzQTE2JTJDJTIybWF4dmVydGV4dGV4dHVyZWltYWdldW5pdHMlMjIlM0ExNiUyQyUyMm1heHZlcnRleHVuaWZvcm12ZWN0b3JzJTIyJTNBNDA5NiUyQyUyMm1heHZpZXdwb3J0ZGltcyUyMiUzQSUyMiU1QjMyNzY3JTJDMzI3NjclNUQlMjIlMkMlMjJyZWRiaXRzJTIyJTNBOCUyQyUyMnJlbmRlcmVyJTIyJTNBJTIyV2ViS2l0V2ViR0wlMjIlMkMlMjJzaGFkaW5nbGFuZ3VhZ2V2ZXJzaW9uJTIyJTNBJTIyV2ViR0xHTFNMRVMxLjAoT3BlbkdMRVNHTFNMRVMxLjBDaHJvbWl1bSklMjIlMkMlMjJzdGVuY2lsYml0cyUyMiUzQTAlMkMlMjJ2ZW5kb3IlMjIlM0ElMjJXZWJLaXQlMjIlMkMlMjJ2ZXJzaW9uJTIyJTNBJTIyV2ViR0wxLjAoT3BlbkdMRVMyLjBDaHJvbWl1bSklMjIlMkMlMjJ2ZXJ0ZXhzaGFkZXJoaWdoZmxvYXRwcmVjaXNpb24lMjIlM0EyMyUyQyUyMnZlcnRleHNoYWRlcmhpZ2hmbG9hdHByZWNpc2lvbnJhbmdlTWluJTIyJTNBMTI3JTJDJTIydmVydGV4c2hhZGVyaGlnaGZsb2F0cHJlY2lzaW9ucmFuZ2VNYXglMjIlM0ExMjclMkMlMjJ2ZXJ0ZXhzaGFkZXJtZWRpdW1mbG9hdHByZWNpc2lvbiUyMiUzQTIzJTJDJTIydmVydGV4c2hhZGVybWVkaXVtZmxvYXRwcmVjaXNpb25yYW5nZU1pbiUyMiUzQTEyNyUyQyUyMnZlcnRleHNoYWRlcm1lZGl1bWZsb2F0cHJlY2lzaW9ucmFuZ2VNYXglMjIlM0ExMjclMkMlMjJ2ZXJ0ZXhzaGFkZXJsb3dmbG9hdHByZWNpc2lvbiUyMiUzQTIzJTJDJTIydmVydGV4c2hhZGVybG93ZmxvYXRwcmVjaXNpb25yYW5nZU1pbiUyMiUzQTEyNyUyQyUyMnZlcnRleHNoYWRlcmxvd2Zsb2F0cHJlY2lzaW9ucmFuZ2VNYXglMjIlM0ExMjclMkMlMjJmcmFnbWVudHNoYWRlcmhpZ2hmbG9hdHByZWNpc2lvbiUyMiUzQTIzJTJDJTIyZnJhZ21lbnRzaGFkZXJoaWdoZmxvYXRwcmVjaXNpb25yYW5nZU1pbiUyMiUzQTEyNyUyQyUyMmZyYWdtZW50c2hhZGVyaGlnaGZsb2F0cHJlY2lzaW9ucmFuZ2VNYXglMjIlM0ExMjclMkMlMjJmcmFnbWVudHNoYWRlcm1lZGl1bWZsb2F0cHJlY2lzaW9uJTIyJTNBMjMlMkMlMjJmcmFnbWVudHNoYWRlcm1lZGl1bWZsb2F0cHJlY2lzaW9ucmFuZ2VNaW4lMjIlM0ExMjclMkMlMjJmcmFnbWVudHNoYWRlcm1lZGl1bWZsb2F0cHJlY2lzaW9ucmFuZ2VNYXglMjIlM0ExMjclMkMlMjJmcmFnbWVudHNoYWRlcmxvd2Zsb2F0cHJlY2lzaW9uJTIyJTNBMjMlMkMlMjJmcmFnbWVudHNoYWRlcmxvd2Zsb2F0cHJlY2lzaW9ucmFuZ2VNaW4lMjIlM0ExMjclMkMlMjJmcmFnbWVudHNoYWRlcmxvd2Zsb2F0cHJlY2lzaW9ucmFuZ2VNYXglMjIlM0ExMjclMkMlMjJ2ZXJ0ZXhzaGFkZXJoaWdoaW50cHJlY2lzaW9uJTIyJTNBMCUyQyUyMnZlcnRleHNoYWRlcmhpZ2hpbnRwcmVjaXNpb25yYW5nZU1pbiUyMiUzQTMxJTJDJTIydmVydGV4c2hhZGVyaGlnaGludHByZWNpc2lvbnJhbmdlTWF4JTIyJTNBMzAlMkMlMjJ2ZXJ0ZXhzaGFkZXJtZWRpdW1pbnRwcmVjaXNpb24lMjIlM0EwJTJDJTIydmVydGV4c2hhZGVybWVkaXVtaW50cHJlY2lzaW9ucmFuZ2VNaW4lMjIlM0EzMSUyQyUyMnZlcnRleHNoYWRlcm1lZGl1bWludHByZWNpc2lvbnJhbmdlTWF4JTIyJTNBMzAlMkMlMjJ2ZXJ0ZXhzaGFkZXJsb3dpbnRwcmVjaXNpb24lMjIlM0EwJTJDJTIydmVydGV4c2hhZGVybG93aW50cHJlY2lzaW9ucmFuZ2VNaW4lMjIlM0EzMSUyQyUyMnZlcnRleHNoYWRlcmxvd2ludHByZWNpc2lvbnJhbmdlTWF4JTIyJTNBMzAlMkMlMjJmcmFnbWVudHNoYWRlcmhpZ2hpbnRwcmVjaXNpb24lMjIlM0EwJTJDJTIyZnJhZ21lbnRzaGFkZXJoaWdoaW50cHJlY2lzaW9ucmFuZ2VNaW4lMjIlM0EzMSUyQyUyMmZyYWdtZW50c2hhZGVyaGlnaGludHByZWNpc2lvbnJhbmdlTWF4JTIyJTNBMzAlMkMlMjJmcmFnbWVudHNoYWRlcm1lZGl1bWludHByZWNpc2lvbiUyMiUzQTAlMkMlMjJmcmFnbWVudHNoYWRlcm1lZGl1bWludHByZWNpc2lvbnJhbmdlTWluJTIyJTNBMzElMkMlMjJmcmFnbWVudHNoYWRlcm1lZGl1bWludHByZWNpc2lvbnJhbmdlTWF4JTIyJTNBMzAlMkM"
 Debug DecodeOnlyBase64(st)

[firace]

That's because your data starts with some null bytes, which immediately terminate the string:

Code: Select all

Procedure.s DecodeOnlyBase64(Text$)
       Protected *memDecod = AllocateMemory(StringByteLength(Text$))
      Base64Decoder(Text$, *memDecod, StringByteLength(Text$))
      result$= PeekS(*memDecod , -1, #PB_UTF8)
      ShowMemoryViewer(*memDecod,1024)
      FreeMemory(*memDecod)
   ProcedureReturn result$
 EndProcedure 
 
 st.s= "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"
 Debug DecodeOnlyBase64(st)

[souk]

How can we fix this?
In many lines there are zero bytes and each time the number is different, can eat with force to decode despite these bytes?
Thank you!

[firace]

If your responses always start with the same fixed-size byte pattern, you could just skip the initial bytes when decoding, like this:

Code: Select all

Procedure.s DecodeOnlyBase64(Text$)
       Protected *memDecod = AllocateMemory(StringByteLength(Text$))
      Base64Decoder(Text$, *memDecod, StringByteLength(Text$))
      result$= PeekS(*memDecod+9 , -1, #PB_UTF8)
      ShowMemoryViewer(*memDecod,1024)
      FreeMemory(*memDecod)
   ProcedureReturn result$
 EndProcedure 
 
 st.s= "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"
 Debug DecodeOnlyBase64(st)

[souk]

Thank you very much!
If the strings do not always start with zero bytes, the response from the server is chaotic in general, as in this case?

[HeX0R]

I don't think this has anything to do with "chaotic", for me it looks like there is some kind of binary header before the string.
But shouldn't you know best the structure of this stream?

[helpy]

In a string encoded in urlencode, purebasic returns an empty string, under other conditions, decoding occurs correctly.

You can not decode with Base64Decoder what was encoded with URLEncoder!