runique 2.1.17

A Django-inspired web framework for Rust with ORM, templates, and comprehensive security middleware
Documentation 
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//! OG image absolute URL resolution — host extracted from `HostPolicy` according to debug/prod mode.
use crate::middleware::allowed_hosts::HostPolicy;

/// Returns the absolute OG image URL based on the context (debug/prod).
pub fn resolve_og_image(security: &HostPolicy, debug: bool, og_image: &str) -> String {
    if og_image.starts_with("http://") || og_image.starts_with("https://") {
        return og_image.to_string();
    }

    let host = if debug {
        security
            .allowed_hosts
            .iter()
            .find(|h| h.contains("localhost") || h.contains("127.0.0.1"))
            .map(|h| format!("http://{}", h.trim_end_matches('/')))
            .unwrap_or_default()
    } else {
        security
            .allowed_hosts
            .iter()
            .find(|h| !h.contains("localhost") && !h.contains("127.0.0.1"))
            .map(|h| format!("https://{}", h.trim_end_matches('/')))
            .unwrap_or_default()
    };

    format!("{}/{}", host, og_image.trim_start_matches('/'))
}