Signed-off-by: Awiteb <a@4rs.nl>
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4 changed files with 20 additions and 7 deletions
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@ -76,7 +76,7 @@ impl Display for SimpleGeneratorError {
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impl std::error::Error for SimpleGeneratorError {}
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/// The simple captcha generator
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/// A simple captcha generator, using the [`captcha`](https://crates.io/crates/captcha) crate.
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pub struct SimpleGenerator {
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name: CaptchaName,
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difficulty: CaptchaDifficulty,
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@ -93,8 +93,6 @@ impl CaptchaGenerator for SimpleGenerator {
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type Error = SimpleGeneratorError;
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/// The returned captcha image is 220x110 pixels in png format.
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///
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/// For more information about the captcha name and difficulty, see the [`README.md`](https://git.4rs.nl/awiteb/salvo-captcha/#captcha-name-and-difficulty).
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async fn new_captcha(&self) -> Result<(String, Vec<u8>), Self::Error> {
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let Some((captcha_answer, captcha_image)) =
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captcha::by_name(self.difficulty.into(), self.name.into()).as_tuple()
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16
src/lib.rs
16
src/lib.rs
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@ -29,7 +29,21 @@ pub use {captcha_gen::*, finder::*, storage::*};
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/// Key used to insert the captcha state into the depot
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pub const CAPTCHA_STATE_KEY: &str = "::salvo_captcha::captcha_state";
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/// Captcha struct, contains the token and answer.
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/// The captcha middleware
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///
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/// The captcha middleware is used to check the captcha token and answer from
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/// the request. You can use the [`CaptchaBuilder`] to create a new captcha
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/// middleware.
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///
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/// ## Note
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/// You need to generate the captcha token and answer before, then the captcha
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/// middleware will check the token and answer from the request using the finder
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/// and storage you provided. The captcha middleware will insert the
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/// [`CaptchaState`] into the depot, you can get the captcha state from the
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/// depot using the [`CaptchaDepotExt::get_captcha_state`] trait, which is
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/// implemented for the [`Depot`].
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///
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/// Check the [`examples`](https://git.4rs.nl/awiteb/salvo-captcha/src/branch/master/examples) for more information.
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#[non_exhaustive]
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pub struct Captcha<S, F>
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where
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@ -16,7 +16,7 @@ use std::{
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use crate::CaptchaStorage;
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/// The [`cacache`] storage.
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/// The [`cacache`] storage. Store the token and answer in the disk.
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///
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/// [`cacache`]: https://github.com/zkat/cacache-rs
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#[derive(Debug, Clone)]
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@ -26,7 +26,7 @@ pub struct CacacheStorage {
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}
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impl CacacheStorage {
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/// Create a new CacacheStorage
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/// Create a new [`CacacheStorage`] instance with the cache directory.
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pub fn new(cache_dir: impl Into<PathBuf>) -> Self {
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Self {
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cache_dir: cache_dir.into(),
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@ -20,7 +20,7 @@ use tokio::sync::RwLock;
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use crate::CaptchaStorage;
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/// Captcha storage implementation using an in-memory HashMap.
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/// Captcha storage implementation using an in-memory [HashMap].
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#[derive(Debug)]
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pub struct MemoryStorage(RwLock<HashMap<String, (u64, String)>>);
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@ -32,6 +32,7 @@ impl MemoryStorage {
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}
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impl CaptchaStorage for MemoryStorage {
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/// This storage does not return any error.
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type Error = Infallible;
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async fn store_answer(&self, answer: String) -> Result<String, Self::Error> {
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