[pbs-devel] [PATCH proxmox-backup v3 08/41] s3 client: add type for last modified timestamp in responses

[Christian Ebner <c.ebner@proxmox.com>]

Adds a helper to parse modified timestamps as encountered in s3 list
objects v2 and copy object api calls.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
---
 Cargo.toml               |  2 ++
 pbs-s3-client/Cargo.toml |  2 ++
 pbs-s3-client/src/lib.rs | 20 ++++++++++++++++++++
 3 files changed, 24 insertions(+)

diff --git a/Cargo.toml b/Cargo.toml
index 87742f571..b11248f90 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -131,6 +131,7 @@ handlebars = "3.0"
 hex = "0.4.3"
 hickory-resolver = { version = "0.24.1", default-features = false, features = [ "system-config", "tokio-runtime" ] }
 hyper = { version = "0.14", features = [ "backports", "deprecated", "full" ] }
+iso8601 = "0.4.1"
 libc = "0.2"
 log = "0.4.17"
 nix = "0.26.1"
@@ -144,6 +145,7 @@ regex = "1.5.5"
 rustyline = "9"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
+serde_plain = "1.0"
 siphasher = "0.3"
 syslog = "6"
 tar = "0.4"
diff --git a/pbs-s3-client/Cargo.toml b/pbs-s3-client/Cargo.toml
index 9402257bd..6edd9a248 100644
--- a/pbs-s3-client/Cargo.toml
+++ b/pbs-s3-client/Cargo.toml
@@ -10,8 +10,10 @@ rust-version.workspace = true
 anyhow.workspace = true
 hex = { workspace = true, features = [ "serde" ] }
 hyper.workspace = true
+iso8601.workspace = true
 openssl.workspace = true
 serde.workspace = true
+serde_plain.workspace = true
 tracing.workspace = true
 url.workspace = true
 
diff --git a/pbs-s3-client/src/lib.rs b/pbs-s3-client/src/lib.rs
index 8b2be9721..66f38004b 100644
--- a/pbs-s3-client/src/lib.rs
+++ b/pbs-s3-client/src/lib.rs
@@ -3,3 +3,23 @@ mod client;
 pub use client::{S3Client, S3ClientOptions, S3PathPrefix};
 mod object_key;
 pub use object_key::{S3ObjectKey, S3_CONTENT_PREFIX};
+
+use std::time::Duration;
+
+use anyhow::{anyhow, bail, Error};
+
+#[derive(Debug)]
+pub struct LastModifiedTimestamp {
+    _datetime: iso8601::DateTime,
+}
+
+impl std::str::FromStr for LastModifiedTimestamp {
+    type Err = Error;
+
+    fn from_str(timestamp: &str) -> Result<Self, Self::Err> {
+        let _datetime = iso8601::datetime(timestamp).map_err(|err| anyhow!(err))?;
+        Ok(Self { _datetime })
+    }
+}
+
+serde_plain::derive_deserialize_from_fromstr!(LastModifiedTimestamp, "last modified timestamp");
-- 
2.39.5



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