topic RE: VenturIQ-Azure Storage Utility - The input is not a valid Base-64 in Digital Exchange

VenturIQ-Azure Storage Utility - The input is not a valid Base-64

MateuszWojcik — Fri, 25 Mar 2022 09:37:00 GMT

Hi,

I tried to use object "VenturIQ-Azure Storage Utility" action "ListBlobItems" to get a list of items from my Blob containter. When I run action I get the below error message.

Full error message: Internal : Could not execute code stage because exception thrown by code stage: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.

Has anyone know how to handle this error?

Kind regards

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Mateusz Wojcik
RPA Programist
Rockwell Automation
Europe/Warsaw
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RE: VenturIQ-Azure Storage Utility - The input is not a valid Base-64

ewilson — Fri, 25 Mar 2022 11:52:00 GMT

Hi @Mateusz Wojcik,

I dealt with a similar issue just the other day with some Base64-encoded data I was getting from GMail. What I found, in that case, is that the data contained '-' and '_' characters. According to RFC 4648, those are not valid characters for the main Base64 character set. However, when Base64 data is sent across the web the supported characters '+' and '/' cause issues because they are special characters in URLs. So, there's this concept of Base64 web safe characters which amounts to encoding data in Base64 and then replacing any '+' and '/' characters with '-' and '_', respectively.

All that is to say you might want to check your Base64 data to see if it contains any '-' or '_' characters. If it does, replace them with '+' and '/' and then try to decode the data.

Here's some example code:

System.Text.StringBuilder _encodedData = new System.Text.StringBuilder(base64Data);
_encodedData.Replace("-", "+");
_encodedData.Replace("_", "/");

If that doesn't work, I'd suggest reaching out to VenturIQ to see if they can offer some guidance. The support link they posted for that asset is https://venturiq.com/contact-us/

Cheers,

------------------------------
Eric Wilson
Director, Integrations and Enablement
Blue Prism Digital Exchange
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RE: VenturIQ-Azure Storage Utility - The input is not a valid Base-64

MateuszWojcik — Mon, 11 Apr 2022 14:52:00 GMT

Hi Eric,

Thank you for response.
I have made propose changes.
It seems that characters "&", "=", and "%" are also invalid.
Do you know how to replace them ?

Kind regards

------------------------------
Mateusz Wojcik
RPA Programist
Rockwell Automation
Europe/Warsaw
------------------------------

RE: VenturIQ-Azure Storage Utility - The input is not a valid Base-64

ewilson — Tue, 12 Apr 2022 11:11:00 GMT

@Mateusz Wojcik,

Those are typical URL characters. Is your data part of a query string on a URL?

Cheers,

------------------------------
Eric Wilson
Director, Integrations and Enablement
Blue Prism Digital Exchange
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RE: VenturIQ-Azure Storage Utility - The input is not a valid Base-64

MateuszWojcik — Tue, 26 Apr 2022 11:43:00 GMT

Hey,

May data are part as SAS Credentials.

Kind regards

------------------------------
Mateusz Wojcik
RPA Programist
Rockwell Automation
Europe/Warsaw
------------------------------

RE: VenturIQ-Azure Storage Utility - The input is not a valid Base-64

ewilson — Tue, 26 Apr 2022 12:52:00 GMT

Ok, so those characters do encode, under Base64, to different characters. Are you encoding/decoding the credential yourself, or is it provided to you already encoded?

Cheers,

------------------------------
Eric Wilson
Director, Integrations and Enablement
Blue Prism Digital Exchange
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RE: VenturIQ-Azure Storage Utility - The input is not a valid Base-64

MateuszWojcik — Wed, 08 Jun 2022 12:51:00 GMT

Hi Eric, Thank you for your response. I do already have information of what I need. It is written in error message. I do not need to check it in config file. What I do not know is how to solve the problem. I connot find this version System.Memory.dll.

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Mateusz Wojcik
RPA Programist
Rockwell Automation
Europe/Warsaw
------------------------------

RE: VenturIQ-Azure Storage Utility - The input is not a valid Base-64

ewilson — Wed, 08 Jun 2022 12:54:00 GMT

Hi @Mateusz Wojcik,

So you're getting an error about a missing DLL? Does the error tell you what version is expected?

Cheers,

------------------------------
Eric Wilson
Director, Integrations and Enablement
Blue Prism Digital Exchange
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RE: VenturIQ-Azure Storage Utility - The input is not a valid Base-64

MateuszWojcik — Fri, 10 Jun 2022 06:16:00 GMT

Hi @ewilson

Yes I am getting error about expected version,

Kind regards

------------------------------
Mateusz Wojcik
RPA Programist
Rockwell Automation
Europe/Warsaw
------------------------------