transmission: -1 ratio on seeding torrents with 0B downloaded

[antifuchs]

Type: Bug Report

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Your Environment

• Version used: (via nixos)
  • Version (stable release) 4.7.0
  • Commit ID (development release) git --no-pager log -1: 2b652f8
• Environment name and version:
  • Node.js version node --version
  • npm version npm --version
  • Web browser name and version
• Operating system and version: NixOS 23.11
• Torrent client and version: Transmission 3.00

Summary

I'm not sure why the transmission API does this, but on occasion some seeding torrents will show 0 bytes downloaded; that causes flood to display the up/download ratio as -1.

Expected Behavior

On torrents that were downloaded from elsewhere, it would be great if the ratio could be correctly computed, instead of punting on the computation. The transmission API reports an uploadRatio field (in the RPC spec for torrent-get), and it tends to be correct. Maybe flood can use that?

If that's not usable, I would suggest using the totalSize field as the divisor instead of downloadedEver (as total size tends to not be zero).

Current Behavior

Currently, it looks like flood is dividing the amount of data uploaded (uploadedEver) by the amount of data downloaded (downloadedEver). If the divisor should be zero, that results in a not-a-number result, which I assume flood translates into -1.

I imagine it is reasonable for torrents that this instance started seeding, but transmission also reports 0B total downloaded on torrents that it downloaded from somewhere else (again, not sure why).

Possible Solution

Several options:

• use uploadRatio from the transmission RPC API
• use totalSize (which is accurately reported by the API) instead of downloadedEver (which isn't) - but only if the torrent didn't start seeded... I imagine there would be a difference in the "date added" and "date finished" fields that could be used.

Steps to Reproduce

I could not find a common pattern for when the transmission API reports useless field values (it has similar issues with the "date finished" field on occasion), sorry /:

Context

[trim21]

how you define "correct" share ratio if you didn't download anything...

[antifuchs]

Please notice that the issue description is attempting to define exactly that for the case I am reporting. The data being seeded was downloaded (torrent didn't start out seeding), only the transmission API isn't reporting the data downloaded under the field that flood expects.

[trim21]

I'm getting confused.

On torrents that were downloaded from elsewhere,

do you mean, other bt client? so transmission doesn't track downloading

[trim21]

What if I create a torrent and seeding it? You can't tell the difference from api.

But I can get your point

pull request welcome. we could change this to uploaded/totalSize, this make more sense.