Legacy vCard 2.1 and 3.0 serialization support

crates/dav-proto/Cargo.toml

@@ -7,7 +7,7 @@ edition = "2021"
 trc = { path = "../trc" }
 hashify = "0.2.6"
 quick-xml = "0.37.2"
-calcard = { version = "0.1", features = ["rkyv"] }
+calcard = { version = "0.1.1", features = ["rkyv"] }
 mail-parser = { version = "0.11", features = ["full_encoding", "rkyv"] }
 hyper = "1.6.0"
 rkyv = { version = "0.8.10", features = ["little_endian"] }
@@ -15,7 +15,7 @@ chrono = { version = "0.4.40", features = ["serde"], optional = true }
 compact_str = "0.9.0"
 
 [dev-dependencies]
-calcard = { version = "0.1", features = ["serde", "rkyv"] }
+calcard = { version = "0.1.1", features = ["serde", "rkyv"] }
 serde = { version = "1.0.217", features = ["derive"] }
 serde_json = "1.0.138"
 chrono = { version = "0.4.40", features = ["serde"] }

crates/dav-proto/src/lib.rs

@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-SEL
  */
 
+use calcard::vcard::VCardVersion;
 use compact_str::{CompactString, ToCompactString};
 use trc::Value;
 
@@ -40,6 +41,7 @@ pub struct RequestHeaders<'x> {
     pub content_type: Option<&'x str>,
     pub destination: Option<&'x str>,
     pub lock_token: Option<&'x str>,
+    pub max_vcard_version: Option<VCardVersion>,
     pub overwrite_fail: bool,
     pub no_timezones: bool,
     pub ret: Return,

crates/dav-proto/src/parser/header.rs

@@ -4,6 +4,8 @@
  * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-SEL
  */
 
+use calcard::vcard::VCardVersion;
+
 use crate::{Condition, Depth, If, RequestHeaders, ResourceState, Return, Timeout};
 
 impl<'x> RequestHeaders<'x> {
@@ -82,6 +84,23 @@ impl<'x> RequestHeaders<'x> {
                 }
                 return true;
             },
+            "Accept" => {
+                for value in value.split(',') {
+                    if value.trim().starts_with("text/vcard") {
+                        if let Some(version) = value.split_once("version=")
+                                               .and_then(|(_, version)| VCardVersion::try_parse(version.trim())) {
+                            if let Some(max_vcard_version) = &mut self.max_vcard_version {
+                                if version > *max_vcard_version {
+                                    *max_vcard_version = version;
+                                }
+                            } else {
+                                self.max_vcard_version = Some(version);
+                            }
+                        }
+                    }
+                }
+                return true;
+            },
             _ => {}
         );