skp_cache_http/
cache_control.rs

1use std::time::Duration;
2
3/// Parsed Cache-Control header directives
4#[derive(Debug, Clone, Default, PartialEq, Eq)]
5pub struct CacheControl {
6    /// Max age in seconds
7    pub max_age: Option<Duration>,
8    /// S-Maxage (shared cache max age)
9    pub s_maxage: Option<Duration>,
10    /// No-cache directive
11    pub no_cache: bool,
12    /// No-store directive
13    pub no_store: bool,
14    /// Private directive
15    pub private: bool,
16    /// Public directive
17    pub public: bool,
18    /// Must-revalidate directive
19    pub must_revalidate: bool,
20    /// Stale-while-revalidate window
21    pub stale_while_revalidate: Option<Duration>,
22}
23
24impl CacheControl {
25    /// Parse from header string value
26    pub fn parse(header: &str) -> Self {
27        let mut cc = Self::default();
28        for directive in header.split(',') {
29             let directive = directive.trim();
30             if directive.eq_ignore_ascii_case("no-cache") { cc.no_cache = true; }
31             else if directive.eq_ignore_ascii_case("no-store") { cc.no_store = true; }
32             else if directive.eq_ignore_ascii_case("private") { cc.private = true; }
33             else if directive.eq_ignore_ascii_case("public") { cc.public = true; }
34             else if directive.eq_ignore_ascii_case("must-revalidate") { cc.must_revalidate = true; }
35             else if let Some(val) = directive.strip_prefix("max-age=") {
36                 if let Ok(secs) = val.parse::<u64>() { cc.max_age = Some(Duration::from_secs(secs)); }
37             }
38             else if let Some(val) = directive.strip_prefix("s-maxage=") {
39                 if let Ok(secs) = val.parse::<u64>() { cc.s_maxage = Some(Duration::from_secs(secs)); }
40             }
41             else if let Some(val) = directive.strip_prefix("stale-while-revalidate=") {
42                 if let Ok(secs) = val.parse::<u64>() { cc.stale_while_revalidate = Some(Duration::from_secs(secs)); }
43             }
44        }
45        cc
46    }
47}
skp_cache_http/cache_control.rs

skp_cache_http/
cache_control.rs
