NSS try to create path, filename containing invalid windows characters like colon

[bourgeoa]

@timbl @michielbdejong @RubenVerborgh @highlevellogic

Trying NSS on a windows pod https://bourgeoa.solid.hll.nu:7443 . Tested the chat with me from OS solid
The function returns a PUT error 500

FAILED to save new chat channel at: https://bourgeoa.solid.hll.nu:7443/IndividualChats/bourgeoa.solid.hll.nu:7443/index.ttl : Web error: 500 (Internal Server Error) on PUT of https://bourgeoa.solid.hll.nu:7443/IndividualChats/bourgeoa.solid.hll.nu:7443/index.ttl

This is due to the colon : in the folderPath

To ensure solid compatibility can we forbid the windows forbidden characters in pathName like \/:*%"<>| ?
This could be done in resource-mapper.js
Should it be OS dependent to allow any file OS file be URI capable.

index:name.ttl is valid POSIX file and URI, but invalid WINDOWS

[bourgeoa]

@jeff-zucker this may have some impact on solid-rest

[jeff-zucker]

Yes, solid-rest needs to be able to translate requests for valid URLs into valid file names on whatever the backend is.

[highlevellogic]

Is it necessary for the port to be included in the directory name?
What problem would be caused by creating chat directories like account directories, without the port?

[bourgeoa]

@highlevellogic see PR SolidOS/chat-pane#50