fix out-dated dependencies

Cargo.toml

@@ -12,16 +12,13 @@ homepage = "https://github.com/daniel-e/captcha"
 repository = "https://github.com/daniel-e/captcha"
 
 [dependencies]
-image = { version = "0.24.2", default-features = false, features = ["png"] }
+image = { version = "0.25.2", default-features = false, features = ["png"] }
 rand = "0.8.5"
 serde_json = "1.0"
-base64 = "0.13"
+base64 = "0.22.1"
 lodepng = "3.6.1"
 hound = { version = "3.4", optional = true }
 
-[dev-dependencies]
-time = "0.3.9"
-
 [features]
 default = ["audio"]
 audio = ["hound"]

examples/perf.rs

@@ -1,9 +1,7 @@
 extern crate captcha;
-extern crate time;
 
 use captcha::{gen, Difficulty};
-use std::thread;
-use time::Instant;
+use std::{thread, time::Instant};
 
 fn main() {
     let n = 500;
@@ -17,7 +15,7 @@ fn main() {
             for _ in 0..n {
                 gen(Difficulty::Easy).as_tuple();
             }
-            println!("done {:?} ms", b.elapsed().whole_milliseconds());
+            println!("done {:?} ms", b.elapsed().as_millis());
         });
         threads.push(h);
     }
@@ -28,13 +26,13 @@ fn main() {
 
     let d = b.elapsed();
     println!("n                     : {}", n * nthreads);
-    println!("time in ms total      : {}", d.whole_milliseconds());
+    println!("time in ms total      : {}", d.as_millis());
     println!(
         "time in ms per captcha: {}",
-        d.whole_milliseconds() as f64 / (n * nthreads) as f64
+        d.as_millis() as f64 / (n * nthreads) as f64
     );
     println!(
         "#captchs per second   : {}",
-        (n * nthreads * 1000) / (d.whole_milliseconds() as i64)
+        (n * nthreads * 1000) / (d.as_millis() as i64)
     );
 }

src/audio/mod.rs

@@ -1,5 +1,5 @@
 #[cfg(feature = "audio")]
-use base64::decode;
+use base64::{engine::general_purpose, Engine};
 #[cfg(feature = "audio")]
 use hound::Result;
 #[cfg(feature = "audio")]
@@ -29,7 +29,7 @@ impl Audio {
     pub fn as_wav(&self, letter: char) -> Option<Vec<u8>> {
         match self.data.get(&letter) {
             None => None,
-            Some(s) => match decode(s) {
+            Some(s) => match general_purpose::STANDARD.decode(s) {
                 Err(_) => None,
                 Ok(v) => match Audio::add_noise(v) {
                     Ok(v) => Some(v),

src/filters/cow.rs

@@ -68,7 +68,7 @@ impl Cow {
         for &(x, y) in v {
             let mut p = i.get_pixel(x, y);
             p.invert();
-            i.put_pixel(x as u32, y as u32, p);
+            i.put_pixel(x, y, p);
         }
     }
 }

src/fonts/mod.rs

@@ -1,4 +1,4 @@
-use base64::decode;
+use base64::{engine::general_purpose, Engine};
 use serde_json;
 use std::collections::HashMap;
 
@@ -11,7 +11,7 @@ pub trait Font {
     fn png(&self, letter: char) -> Option<Vec<u8>> {
         match self.png_as_base64(letter) {
             None => None,
-            Some(s) => match decode(s) {
+            Some(s) => match general_purpose::STANDARD.decode(s) {
                 Err(_) => None,
                 Ok(v) => Some(v),
             },

src/lib.rs

@@ -63,6 +63,7 @@ mod samples;
 
 pub use samples::{by_name, gen, CaptchaName, Difficulty};
 
+use base64::{engine::general_purpose, Engine};
 use filters::Filter;
 use fonts::{Default, Font};
 use images::{Image, Pixl};
@@ -113,7 +114,6 @@ pub struct RngCaptcha<T> {
 }
 
 impl<T: rand::Rng + rand::RngCore> RngCaptcha<T> {
-
     pub fn from_rng(rng: T) -> RngCaptcha<T> {
         // TODO fixed width + height
         let w = 400;
@@ -309,18 +309,16 @@ impl<T: rand::Rng + rand::RngCore> RngCaptcha<T> {
     }
 
     pub fn as_base64(&self) -> Option<String> {
-        self.as_png().map(base64::encode)
+        self.as_png()
+            .map(|png| general_purpose::STANDARD.encode(&png))
     }
 
     /// Returns a tuple which contains the characters that have been added to this CAPTCHA
     /// as a string and the image encoded as a PNG.
     ///
     /// Returns `None` on error.
     pub fn as_tuple(&self) -> Option<(String, Vec<u8>)> {
-        match self.as_png() {
-            None => None,
-            Some(p) => Some((self.chars_as_string(), p)),
-        }
+        self.as_png().map(|p| (self.chars_as_string(), p))
     }
 
     /// Returns the supported characters of the current font.