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handlers: dedup extracted URLs by normalized post id

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Exact-string dedup let https://x.com/u/status/1 and
https://x.com/u/status/1/photo/1 (or the same link in text and caption)
through twice, causing duplicate fetches and sends. Dedup now uses
cache_key, falling back to the raw URL for unsupported links.
This commit is contained in:
YoursFunny
2026-08-08 20:17:07 +08:00
parent ee6f3e4a27
commit c093dfe5ac
1 changed files with 4 additions and 1 deletions
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crates/xmedia-bot/src/handlers.rs
+4 -1
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@@ -136,7 +136,10 @@ pub fn extract_urls(message: &Message) -> Vec<String> {
} }
} }
let mut seen = HashSet::new(); let mut seen = HashSet::new();
urls.retain(|url| seen.insert(url.clone())); // Dedup by the normalized post id so variant URLs of the same post
// (/status/1 vs /status/1/photo/1) are sent once; unsupported URLs fall
// back to exact-string dedup.
urls.retain(|url| seen.insert(x_media::site::cache_key(url).unwrap_or_else(|| url.clone())));
urls urls
} }