51 lines
1.7 KiB
Rust
51 lines
1.7 KiB
Rust
use rouille::{input, Request, Response};
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/// Flash message trait for `Request`.
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pub trait FlashRequest {
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/// Retrieve the flash message cookie values from a `Request`.
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fn retrieve_flash(&self) -> (Option<&str>, Option<&str>);
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}
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impl FlashRequest for Request {
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fn retrieve_flash(&self) -> (Option<&str>, Option<&str>) {
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// check for flash cookies
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let flash_name = input::cookies(self)
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.find(|&(n, _)| n == "flash_name")
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// return the value of the cookie (key is already known)
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.map(|key_val| key_val.1);
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let flash_msg = input::cookies(self)
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.find(|&(n, _)| n == "flash_msg")
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.map(|key_val| key_val.1);
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(flash_name, flash_msg)
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}
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}
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/// Flash message trait for `Response`.
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pub trait FlashResponse {
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/// Add flash message cookies to a `Response`.
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fn add_flash(self, flash_name: String, flash_msg: String) -> Response;
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/// Reset flash message cookie values for a `Response`.
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fn reset_flash(self) -> Response;
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}
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impl FlashResponse for Response {
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fn add_flash(self, flash_name: String, flash_msg: String) -> Response {
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// set the flash cookie headers
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self.with_additional_header("Set-Cookie", format!("{}; Max-Age=1", flash_name))
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.with_additional_header("Set-Cookie", format!("{}; Max-Age=1", flash_msg))
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}
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fn reset_flash(self) -> Response {
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// set blank cookies to clear the flash msg from the previous request
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self.with_additional_header(
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"Set-Cookie",
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"flash_name=; Max-Age=0; Expires=Fri, 21 Aug 1987 12:00:00 UTC",
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)
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.with_additional_header(
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"Set-Cookie",
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"flash_msg=; Max-Age=0; Expires=Fri, 21 Aug 1987 12:00:00 UTC",
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)
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}
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}
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