(MINOR) Removes xmp_write feature and xmp_toolkit (contentauth#461)

xmp read/write now supported natively

Author: gpeacock

make_test_images/Cargo.toml

@@ -10,7 +10,6 @@ rust-version = "1.73.0"
 anyhow = "1.0.40"
 c2pa = { path = "../sdk", default-features = false, features = [
 	"openssl",
-	"xmp_write",
 	"unstable_api",
 ] }
 env_logger = "0.10"

sdk/Cargo.toml

@@ -30,7 +30,6 @@ add_thumbnails = ["image"]
 psxxx_ocsp_stapling_experimental = []
 file_io = ["openssl_sign"]
 serialize_thumbnails = []
-xmp_write = ["xmp_toolkit"]
 no_interleaved_io = ["file_io"]
 fetch_remote_manifests = []
 openssl_sign = ["openssl"]
@@ -137,7 +136,6 @@ image = { version = "0.24.7", default-features = false, features = [
 ], optional = true }
 instant = "0.1.12"
 openssl = { version = "0.10.61", features = ["vendored"], optional = true }
-xmp_toolkit = { version = "1.7.1", optional = true }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 console_log = { version = "1.0.0", features = ["color"] }

sdk/src/asset_handlers/jpeg_io.rs

@@ -555,17 +555,20 @@ impl RemoteRefEmbed for JpegIO {
         asset_path: &Path,
         embed_ref: crate::asset_io::RemoteRefEmbedType,
     ) -> Result<()> {
-        match embed_ref {
-            crate::asset_io::RemoteRefEmbedType::Xmp(manifest_uri) => {
-                #[cfg(feature = "xmp_write")]
-                {
-                    crate::embedded_xmp::add_manifest_uri_to_file(asset_path, &manifest_uri)
-                }
-
-                #[cfg(not(feature = "xmp_write"))]
-                {
-                    Err(crate::error::Error::MissingFeature("xmp_write".to_string()))
-                }
+        match &embed_ref {
+            crate::asset_io::RemoteRefEmbedType::Xmp(_manifest_uri) => {
+                let mut file = std::fs::File::open(asset_path)?;
+                let mut temp = Cursor::new(Vec::new());
+                self.embed_reference_to_stream(&mut file, &mut temp, embed_ref)?;
+                let mut output = std::fs::OpenOptions::new()
+                    .read(true)
+                    .write(true)
+                    .truncate(true)
+                    .open(asset_path)
+                    .map_err(Error::IoError)?;
+                temp.set_position(0);
+                std::io::copy(&mut temp, &mut output).map_err(Error::IoError)?;
+                Ok(())
             }
             crate::asset_io::RemoteRefEmbedType::StegoS(_) => Err(Error::UnsupportedType),
             crate::asset_io::RemoteRefEmbedType::StegoB(_) => Err(Error::UnsupportedType),

sdk/src/lib.rs

@@ -146,8 +146,6 @@ pub(crate) mod callback_signer;
 pub(crate) mod claim;
 pub(crate) mod claim_generator_info;
 pub(crate) mod cose_validator;
-#[cfg(all(feature = "xmp_write", feature = "file_io"))]
-pub(crate) mod embedded_xmp;
 pub(crate) mod error;
 pub(crate) mod hashed_uri;
 pub(crate) mod ingredient;

sdk/src/manifest.rs

@@ -1717,7 +1717,7 @@ pub(crate) mod tests {
         );
     }
 
-    #[cfg(all(feature = "file_io", feature = "xmp_write"))]
+    #[cfg(feature = "file_io")]
     #[test]
     fn test_embed_user_label() {
         let temp_dir = tempdir().expect("temp dir");
@@ -1738,7 +1738,7 @@ pub(crate) mod tests {
         );
     }
 
-    #[cfg(all(feature = "file_io", feature = "xmp_write"))]
+    #[cfg(feature = "file_io")]
     #[test]
     fn test_embed_sidecar_user_label() {
         let temp_dir = tempdir().expect("temp dir");
@@ -1947,7 +1947,7 @@ pub(crate) mod tests {
         assert!(manifest_store.validation_status().is_none())
     }
 
-    #[cfg(all(feature = "file_io", feature = "xmp_write"))]
+    #[cfg(feature = "file_io")]
     #[test]
     fn test_embed_sidecar_with_parent_manifest() {
         let temp_dir = tempdir().expect("temp dir");