From b08cfe37a28e7c84f754b4b75be9e2c1cec4ab22 Mon Sep 17 00:00:00 2001
From: "Adam T. Carpenter" <atc@53hor.net>
Date: Sat, 3 Oct 2020 13:35:45 -0400
Subject: restored debug script, successfully getting image from URI into file

---
 dichroism/src/main.rs | 33 +++++++++++++++++++++------------
 1 file changed, 21 insertions(+), 12 deletions(-)

(limited to 'dichroism/src')

diff --git a/dichroism/src/main.rs b/dichroism/src/main.rs
index 77fd0a1..6072198 100644
--- a/dichroism/src/main.rs
+++ b/dichroism/src/main.rs
@@ -1,13 +1,14 @@
 #[macro_use]
 extern crate lazy_static;
 use actix_web::{get, post, App, HttpResponse, HttpServer, Responder};
-use base64;
+use base64::decode;
 use listenfd::ListenFd;
 use regex::Regex;
 
 lazy_static! {
     static ref DATA_URI_RE: Regex =
-        Regex::new("^data:image/(?P<format>png|jpg|jpeg);base64,(?P<data>.+)").unwrap();
+        Regex::new("^data:image/(?P<format>png|jpg|jpeg);base64,(?P<data>.+)")
+            .expect("Couldn't parse Regex!");
 }
 
 #[get("/")]
@@ -20,21 +21,26 @@ async fn create_product(req_body: String) -> impl Responder {
     let caps = if let Some(c) = DATA_URI_RE.captures(&req_body) {
         c
     } else {
-        return HttpResponse::BadRequest().body("Invalid data URI");
+        return HttpResponse::BadRequest().body("Invalid data URI or image format.");
     };
 
-    let format = if let Some(f) = caps.name("format") {
-        f.as_str()
-    } else {
-        return HttpResponse::BadRequest().body("Invalid image format.");
-    };
+    let format = caps
+        .name("format")
+        .expect("Data URI format extraction should never fail.")
+        .as_str();
+    let data = caps
+        .name("data")
+        .expect("Data URI data extraction should never fail.")
+        .as_str();
 
-    let data = if let Some(d) = caps.name("data") {
-        d.as_str()
+    let bytes = if let Ok(b) = decode(data) {
+        b
     } else {
-        return HttpResponse::BadRequest().body("No encoded data.");
+        return HttpResponse::BadRequest().body("Invalid image data in data URI.");
     };
 
+    let img = image::load_from_memory(&bytes).unwrap();
+    img.save("test.png").unwrap();
     HttpResponse::Ok().body(format!("created\n{}\n{}", format, data))
 }
 
@@ -52,10 +58,13 @@ async fn main() -> std::io::Result<()> {
             .service(create_product)
             .service(get_products)
     });
+
     server = if let Some(l) = listenfd.take_tcp_listener(0).unwrap() {
+        // "Debug mode" with cargo watch auto-reloading
         server.listen(l)?
     } else {
-        server.bind("127.0.0.1:8080")?
+        // "Release mode"
+        server.bind("127.0.0.1:8000")?
     };
 
     server.run().await
-- 
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