fixed photo deserial

crates/proton-drive-rs/src/client.rs

@@ -470,6 +470,7 @@ impl ProtonDriveClient {
         let link = detail.link;
         let file = detail
             .file
+            .or(detail.photo)
             .ok_or_else(|| ProtonError::invalid_operation(format!("node {uid} is not a file")))?;
 
         let content_key_packet_b64 = file.content_key_packet.ok_or_else(|| {
@@ -559,6 +560,7 @@ impl ProtonDriveClient {
         let link = detail.link;
         let file = detail
             .file
+            .or(detail.photo)
             .ok_or_else(|| ProtonError::invalid_operation(format!("node {uid} is not a file")))?;
 
         let content_key_packet_b64 = file.content_key_packet.ok_or_else(|| {
@@ -896,6 +898,7 @@ impl ProtonDriveClient {
         let link = detail.link;
         let file = detail
             .file
+            .or(detail.photo)
             .ok_or_else(|| ProtonError::invalid_operation(format!("node {uid} is not a file")))?;
 
         let content_key_packet_b64 = file.content_key_packet.ok_or_else(|| {
@@ -2322,6 +2325,7 @@ impl ProtonDriveClient {
         let link = detail.link;
         let file = detail
             .file
+            .or(detail.photo)
             .ok_or_else(|| ProtonError::invalid_operation(format!("node {uid} is not a file")))?;
 
         let content_key_packet_b64 = file.content_key_packet.ok_or_else(|| {
@@ -2532,7 +2536,7 @@ impl ProtonDriveClient {
                 NodeKind::Folder
             }
             LinkType::File => {
-                let file = details.file.as_ref().ok_or_else(|| {
+                let file = details.file_properties().ok_or_else(|| {
                     ProtonError::invalid_operation("file node missing file properties")
                 })?;
 

crates/proton-drive-rs/src/dtos.rs

@@ -100,6 +100,19 @@ pub struct LinkDetailsDto {
     pub folder: Option<FolderDto>,
     #[serde(rename = "File")]
     pub file: Option<FileDto>,
+    /// Photos-volume `/links` returns file properties under `Photo` (a superset
+    /// of `File`) rather than `File`. Deserialized as [`FileDto`]; the extra
+    /// photo fields are ignored. C# `linkDetailsDto.File ?? linkDetailsDto.Photo`.
+    #[serde(rename = "Photo")]
+    pub photo: Option<FileDto>,
+}
+
+impl LinkDetailsDto {
+    /// File properties for a file/photo node, preferring `File` and falling back
+    /// to the photos-volume `Photo` block.
+    pub fn file_properties(&self) -> Option<&FileDto> {
+        self.file.as_ref().or(self.photo.as_ref())
+    }
 }
 
 #[derive(Debug, Deserialize)]