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Redirect /:id to canonical URL for post. (#617)

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* Redirect /:id to canonical URL for post.

This implements redirection of `/:id` (a short-form URL to a post) to
the post's canonical URL. Libreddit issues a `HEAD /:id` to Reddit to get
the canonical URL, and on success will send an HTTP 302 to a client with
the canonical URL set in as the value of the `Location:` header.

This also implements support for short IDs for non-ASCII posts, c/o
spikecodes.

Co-authored-by: spikecodes <19519553+spikecodes@users.noreply.github.com>
This commit is contained in:
Daniel Valentine 2022-11-05 02:29:04 -06:00 • committed by GitHub
parent 584cd4aac1
commit c6487799ed
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3 changed files with 152 additions and 66 deletions
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5
src/utils.rs
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@ -716,10 +716,11 @@ pub fn redirect(path: String) -> Response<Body> {
.unwrap_or_default()
}
pub async fn error(req: Request<Body>, msg: String) -> Result<Response<Body>, String> {
/// Renders a generic error landing page.
pub async fn error(req: Request<Body>, msg: impl ToString) -> Result<Response<Body>, String> {
let url = req.uri().to_string();
let body = ErrorTemplate {
msg,
msg: msg.to_string(),
prefs: Preferences::new(req),
url,
}