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Replace rand with fastrand (#600)

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We don't need cryptographically secure random numbers, this simplifies
the dependency tree and speeds up builds.
This commit is contained in:
Alex Wennerberg
2021-04-06 12:32:43 -07:00
committed by GitHub
parent 61b08814c9
commit 53bfb65423
2 changed files with 5 additions and 8 deletions
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4
Cargo.toml
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@@ -25,7 +25,7 @@ tracing = { version = "0.1.16", default-features = false, features = ["std"], op
hyperx = { version = "1", optional = true, features = ["headers"] } hyperx = { version = "1", optional = true, features = ["headers"] }
mime = { version = "0.3.4", optional = true } mime = { version = "0.3.4", optional = true }
uuid = { version = "0.8", features = ["v4"] } uuid = { version = "0.8", features = ["v4"] }
rand = { version = "0.8", optional = true } fastrand = { version = "1.4", optional = true }
quoted_printable = { version = "0.4", optional = true } quoted_printable = { version = "0.4", optional = true }
base64 = { version = "0.13", optional = true } base64 = { version = "0.13", optional = true }
once_cell = "1" once_cell = "1"
@@ -81,7 +81,7 @@ name = "transport_smtp"
[features] [features]
default = ["smtp-transport", "native-tls", "hostname", "r2d2", "builder"] default = ["smtp-transport", "native-tls", "hostname", "r2d2", "builder"]
builder = ["mime", "base64", "hyperx", "rand", "quoted_printable"] builder = ["mime", "base64", "hyperx", "fastrand", "quoted_printable"]
# transports # transports
file-transport = [] file-transport = []

9
src/message/mimebody.rs
View File

@@ -5,7 +5,7 @@ use crate::message::{
EmailFormat, IntoBody, EmailFormat, IntoBody,
}; };
use mime::Mime; use mime::Mime;
use rand::Rng; use std::iter::repeat_with;
/// MIME part variants /// MIME part variants
#[derive(Debug, Clone)] #[derive(Debug, Clone)]
@@ -168,12 +168,9 @@ pub enum MultiPartKind {
} }
/// Create a random MIME boundary. /// Create a random MIME boundary.
/// (Not cryptographically random)
fn make_boundary() -> String { fn make_boundary() -> String {
rand::thread_rng() repeat_with(fastrand::alphanumeric).take(40).collect()
.sample_iter(rand::distributions::Alphanumeric)
.take(40)
.map(char::from)
.collect()
} }
impl MultiPartKind { impl MultiPartKind {