1 files changed, 194 insertions, 0 deletions
diff --git a/vendor/dialoguer/src/prompts/password.rs b/vendor/dialoguer/src/prompts/password.rs
new file mode 100644
index 0000000..7327605
--- /dev/null
+++ b/vendor/dialoguer/src/prompts/password.rs
@@ -0,0 +1,194 @@
+use std::io;
+
+use crate::{
+    theme::{SimpleTheme, TermThemeRenderer, Theme},
+    validate::PasswordValidator,
+};
+
+use console::Term;
+use zeroize::Zeroizing;
+
+type PasswordValidatorCallback<'a> = Box<dyn Fn(&String) -> Option<String> + 'a>;
+
+/// Renders a password input prompt.
+///
+/// ## Example usage
+///
+/// ```rust,no_run
+/// # fn test() -> Result<(), Box<std::error::Error>> {
+/// use dialoguer::Password;
+///
+/// let password = Password::new().with_prompt("New Password")
+///     .with_confirmation("Confirm password", "Passwords mismatching")
+///     .interact()?;
+/// println!("Length of the password is: {}", password.len());
+/// # Ok(()) } fn main() { test().unwrap(); }
+/// ```
+pub struct Password<'a> {
+    prompt: String,
+    report: bool,
+    theme: &'a dyn Theme,
+    allow_empty_password: bool,
+    confirmation_prompt: Option<(String, String)>,
+    validator: Option<PasswordValidatorCallback<'a>>,
+}
+
+impl Default for Password<'static> {
+    fn default() -> Password<'static> {
+        Self::new()
+    }
+}
+
+impl Password<'static> {
+    /// Creates a password input prompt.
+    pub fn new() -> Password<'static> {
+        Self::with_theme(&SimpleTheme)
+    }
+}
+
+impl<'a> Password<'a> {
+    /// Sets the password input prompt.
+    pub fn with_prompt<S: Into<String>>(&mut self, prompt: S) -> &mut Self {
+        self.prompt = prompt.into();
+        self
+    }
+
+    /// Indicates whether to report confirmation after interaction.
+    ///
+    /// The default is to report.
+    pub fn report(&mut self, val: bool) -> &mut Self {
+        self.report = val;
+        self
+    }
+
+    /// Enables confirmation prompting.
+    pub fn with_confirmation<A, B>(&mut self, prompt: A, mismatch_err: B) -> &mut Self
+    where
+        A: Into<String>,
+        B: Into<String>,
+    {
+        self.confirmation_prompt = Some((prompt.into(), mismatch_err.into()));
+        self
+    }
+
+    /// Allows/Disables empty password.
+    ///
+    /// By default this setting is set to false (i.e. password is not empty).
+    pub fn allow_empty_password(&mut self, allow_empty_password: bool) -> &mut Self {
+        self.allow_empty_password = allow_empty_password;
+        self
+    }
+
+    /// Registers a validator.
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use dialoguer::Password;
+    /// let password: String = Password::new()
+    ///     .with_prompt("Enter password")
+    ///     .validate_with(|input: &String| -> Result<(), &str> {
+    ///         if input.len() > 8 {
+    ///             Ok(())
+    ///         } else {
+    ///             Err("Password must be longer than 8")
+    ///         }
+    ///     })
+    ///     .interact()
+    ///     .unwrap();
+    /// ```
+    pub fn validate_with<V>(&mut self, validator: V) -> &mut Self
+    where
+        V: PasswordValidator + 'a,
+        V::Err: ToString,
+    {
+        let old_validator_func = self.validator.take();
+
+        self.validator = Some(Box::new(move |value: &String| -> Option<String> {
+            if let Some(old) = &old_validator_func {
+                if let Some(err) = old(value) {
+                    return Some(err);
+                }
+            }
+
+            match validator.validate(value) {
+                Ok(()) => None,
+                Err(err) => Some(err.to_string()),
+            }
+        }));
+
+        self
+    }
+
+    /// Enables user interaction and returns the result.
+    ///
+    /// If the user confirms the result is `true`, `false` otherwise.
+    /// The dialog is rendered on stderr.
+    pub fn interact(&self) -> io::Result<String> {
+        self.interact_on(&Term::stderr())
+    }
+
+    /// Like `interact` but allows a specific terminal to be set.
+    pub fn interact_on(&self, term: &Term) -> io::Result<String> {
+        let mut render = TermThemeRenderer::new(term, self.theme);
+        render.set_prompts_reset_height(false);
+
+        loop {
+            let password = Zeroizing::new(self.prompt_password(&mut render, &self.prompt)?);
+
+            if let Some(ref validator) = self.validator {
+                if let Some(err) = validator(&password) {
+                    render.error(&err)?;
+                    continue;
+                }
+            }
+
+            if let Some((ref prompt, ref err)) = self.confirmation_prompt {
+                let pw2 = Zeroizing::new(self.prompt_password(&mut render, prompt)?);
+
+                if *password != *pw2 {
+                    render.error(err)?;
+                    continue;
+                }
+            }
+
+            render.clear()?;
+
+            if self.report {
+                render.password_prompt_selection(&self.prompt)?;
+            }
+            term.flush()?;
+
+            return Ok((*password).clone());
+        }
+    }
+
+    fn prompt_password(&self, render: &mut TermThemeRenderer, prompt: &str) -> io::Result<String> {
+        loop {
+            render.password_prompt(prompt)?;
+            render.term().flush()?;
+
+            let input = render.term().read_secure_line()?;
+
+            render.add_line();
+
+            if !input.is_empty() || self.allow_empty_password {
+                return Ok(input);
+            }
+        }
+    }
+}
+
+impl<'a> Password<'a> {
+    /// Creates a password input prompt with a specific theme.
+    pub fn with_theme(theme: &'a dyn Theme) -> Self {
+        Self {
+            prompt: "".into(),
+            report: true,
+            theme,
+            allow_empty_password: false,
+            confirmation_prompt: None,
+            validator: None,
+        }
+    }
+}