implemented revisions

Cargo.lock

@@ -2030,7 +2030,7 @@ dependencies = [
 
 [[package]]
 name = "proton-drive-rs"
-version = "0.2.1"
+version = "0.2.2"
 dependencies = [
  "async-trait",
  "base64",
@@ -2055,7 +2055,7 @@ dependencies = [
 
 [[package]]
 name = "proton-sdk"
-version = "0.2.1"
+version = "0.2.2"
 dependencies = [
  "aes-gcm 0.11.0",
  "async-trait",

Cargo.toml

@@ -3,7 +3,7 @@ resolver = "2"
 members = ["crates/proton-sdk", "crates/proton-drive-rs"]
 
 [workspace.package]
-version = "0.2.1"
+version = "0.2.2"
 edition = "2024"
 license = "MIT"
 repository = "https://github.com/narrrl/proton-sdk-rs"

crates/proton-drive-rs/Cargo.toml

@@ -14,7 +14,7 @@ readme = "../../README.md"
 documentation = "https://docs.rs/proton-drive-rs"
 
 [dependencies]
-proton-sdk = { path = "../proton-sdk", version = "0.2.0" }
+proton-sdk = { path = "../proton-sdk", version = "0.2.2" }
 tokio.workspace = true
 reqwest.workspace = true
 serde.workspace = true

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

@@ -5770,6 +5770,7 @@ impl ProtonDriveClient {
                 // leaves the claimed metadata absent rather than failing the node.
                 let mut claimed_size = None;
                 let mut claimed_modification_time = None;
+                let mut content_sha1 = None;
                 if let Some(node_key) = node_key.as_ref()
                     && let Some(rev) = file.active_revision.as_ref()
                     && let Some(xattr) = rev.extended_attributes.as_deref()
@@ -5787,6 +5788,7 @@ impl ProtonDriveClient {
                             if let Some(common) = attrs.common {
                                 claimed_size = common.size;
                                 claimed_modification_time = common.modification_time;
+                                content_sha1 = common.digests.and_then(|d| d.sha1);
                             }
                         }
                         Err(e) => {
@@ -5801,8 +5803,10 @@ impl ProtonDriveClient {
                         .active_revision
                         .as_ref()
                         .map(|rev| RevisionState::from_raw(rev.state)),
+                    active_revision_id: file.active_revision.as_ref().map(|rev| rev.id.clone()),
                     claimed_size,
                     claimed_modification_time,
+                    content_sha1,
                 }
             }
             LinkType::Unknown => {

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

@@ -111,6 +111,14 @@ pub enum NodeKind {
         /// the file has no active revision (an unsealed draft).
         #[serde(default)]
         active_revision_state: Option<RevisionState>,
+        /// Server-assigned identifier of the file's active revision
+        /// (`ActiveRevision.RevisionID`); `None` for an unsealed draft, or when
+        /// read through a surface that does not carry it. Unlike
+        /// `modification_time` this is a stable revision identity: it advances iff
+        /// a *new* revision was sealed, so a consumer can tell "the same revision,
+        /// re-stamped" from "someone wrote a new revision" without a download.
+        #[serde(default)]
+        active_revision_id: Option<String>,
         /// Authoritative plaintext size from the active revision's decrypted
         /// extended attributes (C# `ClaimedSize`). `None` when the revision has
         /// no `XAttr` or it failed to decrypt.
@@ -118,6 +126,12 @@ pub enum NodeKind {
         /// ISO-8601 modification time from the decrypted extended attributes
         /// (C# `ClaimedModificationTime`), verbatim as written by the uploader.
         claimed_modification_time: Option<String>,
+        /// Lowercase-hex SHA-1 of the full plaintext, from the active revision's
+        /// decrypted extended attributes (`Digests.SHA1`). A download-free content
+        /// fingerprint: two files with the same size *and* the same digest hold
+        /// the same bytes. `None` when the revision carries no digest (some
+        /// clients omit it) or the `XAttr` failed to decrypt.
+        content_sha1: Option<String>,
     },
 }
 
@@ -222,6 +236,38 @@ impl FileThumbnail {
 mod tests {
     use super::*;
 
+    #[test]
+    fn file_node_carries_active_revision_id_and_defaults_it() {
+        // A File node round-trips its revision id.
+        let kind = NodeKind::File {
+            media_type: "text/plain".into(),
+            total_size_on_storage: 10,
+            active_revision_state: Some(RevisionState::Active),
+            active_revision_id: Some("rev-abc".into()),
+            claimed_size: Some(4),
+            claimed_modification_time: None,
+            content_sha1: Some("da39a3ee".into()),
+        };
+        let json = serde_json::to_string(&kind).unwrap();
+        let back: NodeKind = serde_json::from_str(&json).unwrap();
+        match back {
+            NodeKind::File {
+                active_revision_id, ..
+            } => assert_eq!(active_revision_id.as_deref(), Some("rev-abc")),
+            NodeKind::Folder => panic!("expected a file"),
+        }
+
+        // A sidecar written before the field existed deserializes to `None`.
+        let legacy = r#"{"File":{"media_type":"text/plain","total_size_on_storage":10,"claimed_size":null,"claimed_modification_time":null}}"#;
+        let back: NodeKind = serde_json::from_str(legacy).unwrap();
+        match back {
+            NodeKind::File {
+                active_revision_id, ..
+            } => assert!(active_revision_id.is_none()),
+            NodeKind::Folder => panic!("expected a file"),
+        }
+    }
+
     #[test]
     fn revision_state_maps_the_wire_value() {
         assert_eq!(RevisionState::from_raw(Some(2)), RevisionState::Superseded);

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

@@ -528,10 +528,14 @@ impl ProtonDrivePublicLinkClient {
                 active_revision_state: file
                     .and_then(|f| f.active_revision.as_ref())
                     .map(|revision| RevisionState::from_raw(revision.state)),
+                active_revision_id: file
+                    .and_then(|f| f.active_revision.as_ref())
+                    .map(|revision| revision.id.clone()),
                 // Claimed metadata lives in the revision's extended attributes,
                 // which this read surface does not fetch.
                 claimed_size: None,
                 claimed_modification_time: None,
+                content_sha1: None,
             }
         };