fix: Working remote manifest fetch.

Author: cdmurph32

Makefile

@@ -34,7 +34,7 @@ test-wasm-web:
 # WASI testing requires the WASI SDK https://github.com/WebAssembly/wasi-sdk installed in /opt,
 # wasmtime, and the target wasm32-wasip2 on the nightly toolchain
 test-wasi:
-	CC=/opt/wasi-sdk/bin/clang CARGO_TARGET_WASM32_WASIP2_RUNNER="wasmtime -S common --dir ." cargo +nightly test --target wasm32-wasip2 -p c2pa -p c2pa-crypto
+	CC=/opt/wasi-sdk/bin/clang CARGO_TARGET_WASM32_WASIP2_RUNNER="wasmtime -S cli -S http --dir ." cargo +nightly test --target wasm32-wasip2 -p c2pa -p c2pa-crypto --all-features
 
 # Full local validation, build and test all features including wasm
 # Run this before pushing a PR to pre-validate

sdk/src/error.rs

@@ -191,10 +191,10 @@ pub enum Error {
     #[error("required JUMBF box not found")]
     JumbfBoxNotFound,
 
-    #[error("could not fetch the remote manifest")]
+    #[error("could not fetch the remote manifest {0}")]
     RemoteManifestFetch(String),
 
-    #[error("must fetch remote manifests from url")]
+    #[error("must fetch remote manifests from url {0}")]
     RemoteManifestUrl(String),
 
     #[error("stopped because of logged error")]

sdk/src/store.rs

@@ -3286,47 +3286,48 @@ impl Store {
         };
 
         //const MANIFEST_CONTENT_TYPE: &str = "application/x-c2pa-manifest-store"; // todo verify once these are served
-        //const DEFAULT_MANIFEST_RESPONSE_SIZE: usize = 10 * 1024 * 1024; // 10 MB
+        const DEFAULT_MANIFEST_RESPONSE_SIZE: usize = 10 * 1024 * 1024; // 10 MB
         let parsed_url = Url::parse(url)
             .map_err(|e| Error::RemoteManifestFetch(format!("invalid URL: {}", e)))?;
-        let path_with_query = parsed_url[url::Position::BeforeHost..].to_string();
+        let authority = parsed_url.authority();
+        let path_with_query = parsed_url[url::Position::AfterPort..].to_string();
+        let scheme = match parsed_url.scheme() {
+            "http" => Scheme::Http,
+            "https" => Scheme::Https,
+            _ => {
+                return Err(Error::RemoteManifestFetch(
+                    "unsupported URL scheme".to_string(),
+                ))
+            }
+        };
 
         let request = OutgoingRequest::new(Fields::new());
         request.set_path_with_query(Some(&path_with_query)).unwrap();
-        request.set_scheme(Some(&Scheme::Https)).unwrap();
+        request.set_authority(Some(&authority)).unwrap();
+        request.set_scheme(Some(&scheme)).unwrap();
         match outgoing_handler::handle(request, None) {
             Ok(resp) => {
                 resp.subscribe().block();
                 let response = resp
                     .get()
-                    .expect("HTTP request response missing")
-                    .expect("HTTP request response requested more than once")
-                    .expect("HTTP request failed");
+                    .ok_or(Error::RemoteManifestFetch(
+                        "HTTP request response missing".to_string(),
+                    ))?
+                    .map_err(|_| {
+                        Error::RemoteManifestFetch(
+                            "HTTP request response requested more than once".to_string(),
+                        )
+                    })?
+                    .map_err(|_| Error::RemoteManifestFetch("HTTP request failed".to_string()))?;
                 if response.status() == 200 {
-                    let raw_header = response.headers().get("Content-Length");
-                    if raw_header.first().map(|val| val.is_empty()).unwrap_or(true) {
-                        return Err(Error::RemoteManifestFetch(
-                            "url returned no content length".to_string(),
-                        ));
-                    }
-                    let str_parsed_header = match std::str::from_utf8(raw_header.first().unwrap()) {
-                        Ok(s) => s,
-                        Err(e) => {
-                            return Err(Error::RemoteManifestFetch(format!(
-                                "error parsing content length header: {}",
-                                e
-                            )))
-                        }
-                    };
-                    let content_length: usize = match str_parsed_header.parse() {
-                        Ok(s) => s,
-                        Err(e) => {
-                            return Err(Error::RemoteManifestFetch(format!(
-                                "error parsing content length header: {}",
-                                e
-                            )))
-                        }
-                    };
+                    let content_length: usize = response
+                        .headers()
+                        .get("Content-Length")
+                        .first()
+                        .and_then(|val| if val.is_empty() { None } else { Some(val) })
+                        .and_then(|val| std::str::from_utf8(val).ok())
+                        .and_then(|str_parsed_header| str_parsed_header.parse().ok())
+                        .unwrap_or(DEFAULT_MANIFEST_RESPONSE_SIZE);
                     let body = {
                         let mut buf = Vec::with_capacity(content_length);
                         let response_body = response

sdk/tests/integration.rs

@@ -13,7 +13,6 @@
 
 /// Complete functional integration test with parent and ingredients.
 // Isolate from wasm by wrapping in module.
-
 #[cfg(feature = "file_io")]
 mod integration_1 {
     use std::{io, path::PathBuf};

sdk/tests/test_builder.rs

@@ -21,7 +21,7 @@ mod common;
 use common::{compare_stream_to_known_good, fixtures_path, test_signer};
 
 #[test]
-#[ignore] // TODO: Test does not pass in WASI or native
+#[cfg(all(feature = "add_thumbnails", feature = "file_io"))]
 fn test_builder_ca_jpg() -> Result<()> {
     let manifest_def = std::fs::read_to_string(fixtures_path("simple_manifest.json"))?;
     let mut builder = Builder::from_json(&manifest_def)?;

sdk/tests/v2_api_integration.rs

@@ -147,10 +147,13 @@ mod integration_v2 {
             dest
         };
 
-        // write dest to file for debugging
-        let debug_path = format!("{}/../target/v2_test.jpg", env!("CARGO_MANIFEST_DIR"));
-        std::fs::write(debug_path, dest.get_ref())?;
-        dest.rewind()?;
+        #[cfg(not(target_os = "wasi"))]
+        {
+            // write dest to file for debugging
+            let debug_path = format!("{}/../target/v2_test.jpg", env!("CARGO_MANIFEST_DIR"));
+            std::fs::write(debug_path, dest.get_ref())?;
+            dest.rewind()?;
+        }
 
         let reader = Reader::from_stream(format, &mut dest)?;