Remove unstable feature and fix docker build

Signed-off-by: trivernis <trivernis@protonmail.com>

alpine.dockerfile

@@ -1,4 +1,5 @@
-FROM rust AS builder
+FROM alpine AS builder
+RUN apk add --no-cache build-base cargo
 WORKDIR /usr/src
 RUN USER=root cargo new snekcloud-server
 WORKDIR /usr/src/snekcloud-server

scratch.dockerfile

@@ -1,4 +1,5 @@
-FROM rust AS builder
+FROM alpine AS builder
+RUN apk add --no-cache build-base cargo
 WORKDIR /usr/src
 RUN USER=root cargo new snekcloud-server
 WORKDIR /usr/src/snekcloud-server
@@ -14,4 +15,4 @@ FROM scratch
 COPY --from=builder /usr/src/snekcloud-server/target/release/snekcloud-server .
 COPY --from=builder /usr/src/snekcloud-server/target/release/config /
 COPY --from=builder /usr/src/snekcloud-server/target/release/private_key /
-ENTRYPOINT ["./snekcloud-server"]
+ENTRYPOINT ["/snekcloud-server"]

src/utils/keys.rs

@@ -62,12 +62,9 @@ pub fn extract_public_key(content: &str) -> SnekcloudResult<PublicKey> {
 
 /// Extracts a base64 encoded key between the prefix and suffix
 fn extract_key(content: &str, prefix: &str, suffix: &str) -> SnekcloudResult<[u8; 32]> {
-    let mut content = content
-        .strip_prefix(prefix)
-        .ok_or(SnekcloudError::InvalidKey)?;
-    content = content
-        .strip_suffix(suffix)
-        .ok_or(SnekcloudError::InvalidKey)?;
+    if !content.starts_with(prefix) || !content.ends_with(suffix) {}
+    let mut content = content.trim_start_matches(prefix);
+    content = content.trim_end_matches(suffix);
 
     let key = base64::decode(content)?;
     if key.len() != 32 {