[jira] [Assigned] (MINIFICPP-1787) Handle invalid attributes in HTTP headers in InvokeHTTP

["Gábor Gyimesi (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MINIFICPP-1787?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gábor Gyimesi reassigned MINIFICPP-1787:
----------------------------------------

    Assignee: Gábor Gyimesi

> Handle invalid attributes in HTTP headers in InvokeHTTP
> -------------------------------------------------------
>
>                 Key: MINIFICPP-1787
>                 URL: https://issues.apache.org/jira/browse/MINIFICPP-1787
>             Project: Apache NiFi MiNiFi C++
>          Issue Type: New Feature
>            Reporter: Gábor Gyimesi
>            Assignee: Gábor Gyimesi
>            Priority: Minor
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> InvokeHTTP adds all attributes of the incoming flow file to the HTTP headers of the message being sent. It is possible that these incoming attributes do not comply with the HTTP protocol, for example having spaces in the attribute names. In this case the HTTP message will be invalid. We should:
>  # Check what other invalid characters could occur (if any) besides spaces in attributes
>  # Add a new property to InvokeHTTP to decide what to do in case we encounter such invalid attributes
> We also have multiple options how this new property could behave:
>  # A simple flag that indicates to transform the invalid attributes automatically if it is turned on, otherwise throw an error if an invalid attribute is found
>  # An enum with multiple options for what should happen if an invalid attribute is found: throw an error, transform the invalid attributes, drop the invalid attributes
>  # For option 2 a 4th enum could be added as a regex (defined in a separate property) to indicate what the transformation should do
> The automatic transformation could work simply by replacing the spaces with dots or dashes or could comply with the standard HTTP header guidelines using "X-" prefixes and dashes between capitalized words (The downside of the latter that it may be less predictable on the receiving side when looking for a specific attribute).



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