[feature-request] hide message signature

[azjezz]

when an email is signed, it would be nice if externals.io would hide the signature, the header, and displaying only the content, but also adding a label/button at the top so people can still retrieve the signature to verify the message.

• if message contains a signature
  • remove header
  • remove signature
  • add a label "Signed" at the top next to the author name.
  • when the label is clicked, the user should be redirect to a new page ( e.g email/114014/signature )
  • the new page should include:
    • the message content as is ( not render, with the signature attached )

BEFORE

AFTER

[azjezz]

GitHub signed commit label:

[mnapoli]

Hi!

I would suggest instead:

• hide the signature entirely
• people that want to retrieve the signature can click "View source"

I don't see the use case for knowing that an email is signed in the context of externals.io.

[azjezz]

I think the issue is that source content is always broken to 75 bytes max using "=\n". ( see https://externals.io/email/114014/source )

which mean you cannot verify it by simply copy pasting.

The raw message page containing signature should probably use the result from $parsedDocument->getTextContent() ( see https://github.com/mnapoli/externals/blob/master/src/EmailSynchronizer.php#L110 )

If you approve of this feature, I will start working on an implementation tomorrow :)

[mnapoli]

The raw message page containing signature should probably use the result from […]

The raw message page should contain the raw message body, I don't think it should contain any transformed data.

And since I don't know of a use case for checking email signatures (on externals.io), I don't see a reason to change anything to support verifying signatures. Maybe you know about some use cases I'm not aware of?

Separately from that, I agree that we can improve the readability of threads by hiding/removing signatures in threads.