[RedditBridge] Use OAuth2 token and endpoint for accessing the JSON API

[Electronic-Mango]

Allow users to specify their own Reddit utility script app credentials to use OAuth2 authorized version of the API, since Reddit disabled unauthenticated JSON requests.

The new parameters are configured through config.php.ini and RedditBridge specific configuration:

[RedditBridge]
app_id = "<ID>"
app_secret = "<secret>"

"Solves" #4866 and #3802, however there are two problems:

1. Instance-specific configuration required private instances of RSS-Bridge.
2. Reddit blocked creating the legacy script apps. Now they require submitting a request and getting an approval. Already existing apps seem to work fine.

As for 1. - I'm not sure if there's a different approach, than private instances. I could modify the bridge to require those credentials via regular bridge parameters, but passing secrets through query seems like a bad idea.

As for 2. - I'm not even sure if it's worth merging such change, as it's impossible to use the bridge without having already working app. The bridge does work if you do, but you can't get it working if you didn't create the app in the past.

Due to this I'm creating it as draft for now, but perhaps it will be useful for someone with already existing app.

[github-actions]

Pull request artifacts

Bridge	Context	Status
Reddit	1 single (current)	❌ HTTP status 429 Too Many Requests ❌ Type: RateLimitException ❌ Message:
Reddit	1 single (pr)	❌ Bridge returned error 401! (20647) ❌ Type: HttpException ❌ Message: https://www.reddit.com/api/v1/access_token resulted in 401 Unauthorized
Reddit	2 multi (current)	❌ HTTP status 429 Too Many Requests ❌ Type: RateLimitException ❌ Message:
Reddit	2 multi (pr)	❌ Bridge returned error 401! (20647) ❌ Type: HttpException ❌ Message: https://www.reddit.com/api/v1/access_token resulted in 401 Unauthorized
Reddit	3 user (current)	❌ HTTP status 429 Too Many Requests ❌ Type: RateLimitException ❌ Message:
Reddit	3 user (pr)	❌ Bridge returned error 401! (20647) ❌ Type: HttpException ❌ Message: https://www.reddit.com/api/v1/access_token resulted in 401 Unauthorized

last change: Monday 2026-07-13 22:25:25

[dvikan]

@Electronic-Mango @dawidsowa

hmm maybe a new bridge for this

i prefer a new class RedditClient

[Electronic-Mango]

@dvikan I moved the "access" logic into dedicated RedditClient class. If both app_id and app_secret are passed into the bridge, then the client will use the OAuth access bearer; if either, or both, are missing, then the client falls back to the legacy access. This way the bridge's behavior should change only if the app credentials are configured.

I thought about splitting the bridge into two, but the majority of the logic would be exactly the same, so I went with the dynamic behavior of the client for now.