version 0.12.3

Add truncation for automatically derived timezones
version 0.12.2
2026-01-30 21:18:19 +00:00 · 2026-01-24 22:49:02 +01:00 · 2026-01-24 22:48:08 +01:00 · 2026-01-24 20:09:42 +01:00 · 2026-01-24 20:07:38 +01:00 · 2026-01-24 19:52:13 +01:00
71 changed files with 1200 additions and 505 deletions
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -2,7 +2,10 @@ name: Docker

 on:
  push:
-    branches: ["main"]
+    branches:
+      - main
+      - dev
+      - feat/*
  release:
    types: ["published"]

@@ -45,7 +48,8 @@ jobs:
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
-            type=ref,event=branch
+            ${{ github.ref_name == 'main' && 'type=ref,event=branch' || '' }}
+            type=ref,event=branch,prefix=br-
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
--- a/.sqlx/query-146e23ae4e0eaae4d65ac7563c67d4f295ccc2534dcc4b3bd710de773ed137f9.json
+++ b/.sqlx/query-146e23ae4e0eaae4d65ac7563c67d4f295ccc2534dcc4b3bd710de773ed137f9.json
@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "DELETE FROM calendarobjectchangelog WHERE (principal, cal_id, object_id) = (?, ?, ?);",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 3
+    },
+    "nullable": []
+  },
+  "hash": "146e23ae4e0eaae4d65ac7563c67d4f295ccc2534dcc4b3bd710de773ed137f9"
+}
--- a/.sqlx/query-354decac84758c88280f60fbf0f93dddc6c7ff92ac7b8ba44049d31df3c680e3.json
+++ b/.sqlx/query-354decac84758c88280f60fbf0f93dddc6c7ff92ac7b8ba44049d31df3c680e3.json
@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "UPDATE calendarobjects SET ics = ? WHERE (principal, cal_id, id) = (?, ?, ?);",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 4
+    },
+    "nullable": []
+  },
+  "hash": "354decac84758c88280f60fbf0f93dddc6c7ff92ac7b8ba44049d31df3c680e3"
+}
--- a/.sqlx/query-bdaa4bee8b01d0e3773e34672ed4805d1e71d24888f2227045afd90bf080fc23.json
+++ b/.sqlx/query-bdaa4bee8b01d0e3773e34672ed4805d1e71d24888f2227045afd90bf080fc23.json
@@ -0,0 +1,38 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT principal, cal_id, id, ics FROM calendarobjects WHERE ics LIKE '%VERSION:4.0%';",
+  "describe": {
+    "columns": [
+      {
+        "name": "principal",
+        "ordinal": 0,
+        "type_info": "Text"
+      },
+      {
+        "name": "cal_id",
+        "ordinal": 1,
+        "type_info": "Text"
+      },
+      {
+        "name": "id",
+        "ordinal": 2,
+        "type_info": "Text"
+      },
+      {
+        "name": "ics",
+        "ordinal": 3,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 0
+    },
+    "nullable": [
+      false,
+      false,
+      false,
+      false
+    ]
+  },
+  "hash": "bdaa4bee8b01d0e3773e34672ed4805d1e71d24888f2227045afd90bf080fc23"
+}
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -181,9 +181,9 @@ dependencies = [

 [[package]]
 name = "askama_web"
-version = "0.15.0"
+version = "0.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0d6576f8e59513752a3e2673ca602fb403be7d0d0aacba5cd8b219838ab58fe"
+checksum = "5911a65ac3916ef133167a855d52978f9fbf54680a093e0ef29e20b7e94a4523"
 dependencies = [
 "askama",
 "askama_web_derive",
@@ -565,6 +565,24 @@ version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b35204fbdc0b3f4446b89fc1ac2cf84a8a68971995d0bf2e925ec7cd960f9cb3"

+[[package]]
+name = "caldata"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f36de4a8034d98c95e7fe874b828272d823cfbd68e9571fe7bf6c419e852cbe2"
+dependencies = [
+ "chrono",
+ "chrono-tz",
+ "derive_more",
+ "itertools 0.14.0",
+ "lazy_static",
+ "phf 0.13.1",
+ "regex",
+ "rrule",
+ "thiserror 2.0.18",
+ "vtimezones-rs",
+]
+
 [[package]]
 name = "cast"
 version = "0.3.0"
@@ -573,9 +591,9 @@ checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"

 [[package]]
 name = "cc"
-version = "1.2.52"
+version = "1.2.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd4932aefd12402b36c60956a4fe0035421f544799057659ff86f923657aada3"
+checksum = "6354c81bbfd62d9cfa9cb3c773c2b7b2a3a482d569de977fd0e961f6e7c00583"
 dependencies = [
 "find-msvc-tools",
 "shlex",
@@ -595,9 +613,9 @@ checksum = "613afe47fcd5fac7ccf1db93babcb082c5994d996f20b8b159f2ad1658eb5724"

 [[package]]
 name = "chrono"
-version = "0.4.42"
+version = "0.4.43"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "145052bdd345b87320e369255277e3fb5152762ad123a901ef5c262dd38fe8d2"
+checksum = "fac4744fb15ae8337dc853fee7fb3f4e48c0fbaa23d0afe49c447b4fab126118"
 dependencies = [
 "iana-time-zone",
 "js-sys",
@@ -689,9 +707,9 @@ dependencies = [

 [[package]]
 name = "clap_lex"
-version = "0.7.6"
+version = "0.7.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
+checksum = "c3e64b0cc0439b12df2fa678eae89a1c56a529fd067a9115f7827f1fffd22b32"

 [[package]]
 name = "colorchoice"
@@ -1241,9 +1259,9 @@ dependencies = [

 [[package]]
 name = "find-msvc-tools"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f449e6c6c08c865631d4890cfacf252b3d396c9bcc83adb6623cdb02a8336c41"
+checksum = "8591b0bcc8a98a64310a2fae1bb3e9b8564dd10e381e6e28010fde8e8e8568db"

 [[package]]
 name = "flume"
@@ -1768,22 +1786,6 @@ dependencies = [
 "cc",
 ]

-[[package]]
-name = "ical"
-version = "0.11.0"
-source = "git+https://github.com/lennart-k/ical-rs?branch=dev#28e982f928a73f5af13f1e59e28da419567bf93f"
-dependencies = [
- "chrono",
- "chrono-tz",
- "derive_more",
- "itertools 0.14.0",
- "lazy_static",
- "phf 0.13.1",
- "regex",
- "rrule",
- "thiserror 2.0.17",
-]
-
 [[package]]
 name = "icu_collections"
 version = "2.1.1"
@@ -1923,9 +1925,9 @@ checksum = "c8fae54786f62fb2918dcfae3d568594e50eb9b5c25bf04371af6fe7516452fb"

 [[package]]
 name = "insta"
-version = "1.46.0"
+version = "1.46.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b66886d14d18d420ab5052cbff544fc5d34d0b2cdd35eb5976aaa10a4a472e5"
+checksum = "248b42847813a1550dafd15296fd9748c651d0c32194559dbc05d804d54b21e8"
 dependencies = [
 "console",
 "once_cell",
@@ -1991,9 +1993,9 @@ checksum = "92ecc6618181def0457392ccd0ee51198e065e016d1d527a7ac1b6dc7c1f09d2"

 [[package]]
 name = "js-sys"
-version = "0.3.83"
+version = "0.3.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "464a3709c7f55f1f721e5389aa6ea4e3bc6aba669353300af094b29ffbdde1d8"
+checksum = "8c942ebf8e95485ca0d52d97da7c5a2c387d0e7f0ba4c35e93bfcaee045955b3"
 dependencies = [
 "once_cell",
 "wasm-bindgen",
@@ -2025,9 +2027,9 @@ checksum = "bcc35a38544a891a5f7c865aca548a982ccb3b8650a5b06d0fd33a10283c56fc"

 [[package]]
 name = "libm"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9fbbcab51052fe104eb5e5d351cf728d30a5be1fe14d9be8a3b097481fb97de"
+checksum = "b6d2cec3eae94f9f509c767b45932f1ada8350c4bdb85af2fcab4a3c14807981"

 [[package]]
 name = "libredox"
@@ -2118,7 +2120,7 @@ dependencies = [
 "matchit 0.9.1",
 "percent-encoding",
 "serde",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 ]

 [[package]]
@@ -2200,9 +2202,9 @@ dependencies = [

 [[package]]
 name = "num-conv"
-version = "0.1.0"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
+checksum = "cf97ec579c3c42f953ef76dbf8d55ac91fb219dde70e49aa4a6b7d74e9919050"

 [[package]]
 name = "num-integer"
@@ -2370,7 +2372,7 @@ dependencies = [
 "futures-sink",
 "js-sys",
 "pin-project-lite",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tracing",
 ]

@@ -2400,7 +2402,7 @@ dependencies = [
 "opentelemetry_sdk",
 "prost",
 "reqwest",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tokio",
 "tonic",
 "tracing",
@@ -2437,7 +2439,7 @@ dependencies = [
 "opentelemetry",
 "percent-encoding",
 "rand 0.9.2",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tokio",
 "tokio-stream",
 ]
@@ -2610,22 +2612,12 @@ dependencies = [

 [[package]]
 name = "phf_codegen"
-version = "0.12.1"
+version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "efbdcb6f01d193b17f0b9c3360fa7e0e620991b193ff08702f78b3ce365d7e61"
+checksum = "49aa7f9d80421bca176ca8dbfebe668cc7a2684708594ec9f3c0db0805d5d6e1"
 dependencies = [
- "phf_generator 0.12.1",
- "phf_shared 0.12.1",
-]
-
-[[package]]
-name = "phf_generator"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2cbb1126afed61dd6368748dae63b1ee7dc480191c6262a3b4ff1e29d86a6c5b"
-dependencies = [
- "fastrand",
- "phf_shared 0.12.1",
+ "phf_generator",
+ "phf_shared 0.13.1",
 ]

 [[package]]
@@ -2644,7 +2636,7 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "812f032b54b1e759ccd5f8b6677695d5268c588701effba24601f6932f8269ef"
 dependencies = [
- "phf_generator 0.13.1",
+ "phf_generator",
 "phf_shared 0.13.1",
 "proc-macro2",
 "quote",
@@ -2825,9 +2817,9 @@ dependencies = [

 [[package]]
 name = "proc-macro2"
-version = "1.0.105"
+version = "1.0.106"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "535d180e0ecab6268a3e718bb9fd44db66bbbc256257165fc699dadf70d16fe7"
+checksum = "8fd00f0bb2e90d81d1044c2b32617f68fcb9fa3bb7640c23e9c748e53fb30934"
 dependencies = [
 "unicode-ident",
 ]
@@ -2870,9 +2862,9 @@ dependencies = [

 [[package]]
 name = "quick-xml"
-version = "0.38.4"
+version = "0.39.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b66c2058c55a409d601666cffe35f04333cf1013010882cec174a7467cd4e21c"
+checksum = "f2e3bf4aa9d243beeb01a7b3bc30b77cfe2c44e24ec02d751a7104a53c2c49a1"
 dependencies = [
 "memchr",
 ]
@@ -2891,7 +2883,7 @@ dependencies = [
 "rustc-hash",
 "rustls",
 "socket2",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tokio",
 "tracing",
 "web-time",
@@ -2912,7 +2904,7 @@ dependencies = [
 "rustls",
 "rustls-pki-types",
 "slab",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tinyvec",
 "tracing",
 "web-time",
@@ -2934,9 +2926,9 @@ dependencies = [

 [[package]]
 name = "quote"
-version = "1.0.43"
+version = "1.0.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc74d9a594b72ae6656596548f56f667211f8a97b3d4c3d467150794690dc40a"
+checksum = "21b2ebcf727b7760c461f091f9f0f539b77b8e87f2fd88131e7f1b433b3cece4"
 dependencies = [
 "proc-macro2",
 ]
@@ -2965,7 +2957,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6db2770f06117d490610c7488547d543617b21bfa07796d7a12f6f1bd53850d1"
 dependencies = [
 "rand_chacha 0.9.0",
- "rand_core 0.9.3",
+ "rand_core 0.9.5",
 ]

 [[package]]
@@ -2985,7 +2977,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb"
 dependencies = [
 "ppv-lite86",
- "rand_core 0.9.3",
+ "rand_core 0.9.5",
 ]

 [[package]]
@@ -2999,9 +2991,9 @@ dependencies = [

 [[package]]
 name = "rand_core"
-version = "0.9.3"
+version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99d9a13982dcf210057a8a78572b2217b667c3beacbf3a0d8b454f6f82837d38"
+checksum = "76afc826de14238e6e8c374ddcc1fa19e374fd8dd986b0d2af0d02377261d83c"
 dependencies = [
 "getrandom 0.3.4",
 ]
@@ -3187,7 +3179,7 @@ dependencies = [
 "chrono-tz",
 "log",
 "regex",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 ]

 [[package]]
@@ -3262,9 +3254,9 @@ dependencies = [

 [[package]]
 name = "rust-embed"
-version = "8.9.0"
+version = "8.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "947d7f3fad52b283d261c4c99a084937e2fe492248cb9a68a8435a861b8798ca"
+checksum = "04113cb9355a377d83f06ef1f0a45b8ab8cd7d8b1288160717d66df5c7988d27"
 dependencies = [
 "rust-embed-impl",
 "rust-embed-utils",
@@ -3273,9 +3265,9 @@ dependencies = [

 [[package]]
 name = "rust-embed-impl"
-version = "8.9.0"
+version = "8.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fa2c8c9e8711e10f9c4fd2d64317ef13feaab820a4c51541f1a8c8e2e851ab2"
+checksum = "da0902e4c7c8e997159ab384e6d0fc91c221375f6894346ae107f47dd0f3ccaa"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -3286,9 +3278,9 @@ dependencies = [

 [[package]]
 name = "rust-embed-utils"
-version = "8.9.0"
+version = "8.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60b161f275cb337fe0a44d924a5f4df0ed69c2c39519858f931ce61c779d3475"
+checksum = "5bcdef0be6fe7f6fa333b1073c949729274b05f123a0ad7efcb8efd878e5c3b1"
 dependencies = [
 "sha2",
 "walkdir",
@@ -3296,9 +3288,9 @@ dependencies = [

 [[package]]
 name = "rustc-demangle"
-version = "0.1.26"
+version = "0.1.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56f7d92ca342cea22a06f2121d944b4fd82af56988c270852495420f961d4ace"
+checksum = "b50b8869d9fc858ce7266cce0194bd74df58b9d0e3f6df3a9fc8eb470d95c09d"

 [[package]]
 name = "rustc-hash"
@@ -3317,13 +3309,14 @@ dependencies = [

 [[package]]
 name = "rustical"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "anyhow",
 "argon2",
 "async-trait",
 "axum",
 "axum-extra",
+ "caldata",
 "clap",
 "figment",
 "headers",
@@ -3348,6 +3341,7 @@ dependencies = [
 "rustical_store",
 "rustical_store_sqlite",
 "serde",
+ "similar-asserts",
 "sqlx",
 "tokio",
 "toml 0.9.11+spec-1.1.0",
@@ -3362,20 +3356,20 @@ dependencies = [

 [[package]]
 name = "rustical_caldav"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "async-std",
 "async-trait",
 "axum",
 "axum-extra",
 "base64 0.22.1",
+ "caldata",
 "chrono",
 "chrono-tz",
 "derive_more",
 "futures-util",
 "headers",
 "http",
- "ical",
 "insta",
 "percent-encoding",
 "quick-xml",
@@ -3392,7 +3386,7 @@ dependencies = [
 "similar-asserts",
 "strum",
 "strum_macros",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tokio",
 "tower",
 "tower-http",
@@ -3404,17 +3398,17 @@ dependencies = [

 [[package]]
 name = "rustical_carddav"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "async-trait",
 "axum",
 "axum-extra",
 "base64 0.22.1",
+ "caldata",
 "chrono",
 "derive_more",
 "futures-util",
 "http",
- "ical",
 "insta",
 "percent-encoding",
 "quick-xml",
@@ -3427,7 +3421,7 @@ dependencies = [
 "serde",
 "strum",
 "strum_macros",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tokio",
 "tower",
 "tower-http",
@@ -3438,16 +3432,16 @@ dependencies = [

 [[package]]
 name = "rustical_dav"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "async-trait",
 "axum",
 "axum-extra",
+ "caldata",
 "derive_more",
 "futures-util",
 "headers",
 "http",
- "ical",
 "itertools 0.14.0",
 "log",
 "matchit 0.9.1",
@@ -3456,7 +3450,7 @@ dependencies = [
 "rustical_xml",
 "serde",
 "strum",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tokio",
 "tower",
 "tracing",
@@ -3464,7 +3458,7 @@ dependencies = [

 [[package]]
 name = "rustical_dav_push"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "async-trait",
 "axum",
@@ -3482,14 +3476,14 @@ dependencies = [
 "rustical_store",
 "rustical_xml",
 "serde",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tokio",
 "tracing",
 ]

 [[package]]
 name = "rustical_frontend"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "askama",
 "askama_web",
@@ -3512,7 +3506,7 @@ dependencies = [
 "rustical_store",
 "serde",
 "serde_json",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tokio",
 "tower",
 "tower-http",
@@ -3525,13 +3519,13 @@ dependencies = [

 [[package]]
 name = "rustical_ical"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "axum",
+ "caldata",
 "chrono",
 "chrono-tz",
 "derive_more",
- "ical",
 "regex",
 "rrule",
 "rstest",
@@ -3539,12 +3533,12 @@ dependencies = [
 "serde",
 "sha2",
 "similar-asserts",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 ]

 [[package]]
 name = "rustical_oidc"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "async-trait",
 "axum",
@@ -3553,18 +3547,19 @@ dependencies = [
 "openidconnect",
 "reqwest",
 "serde",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tower-sessions",
 "tracing",
 ]

 [[package]]
 name = "rustical_store"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "anyhow",
 "async-trait",
 "axum",
+ "caldata",
 "chrono",
 "chrono-tz",
 "clap",
@@ -3572,7 +3567,6 @@ dependencies = [
 "futures-core",
 "headers",
 "http",
- "ical",
 "regex",
 "rrule",
 "rstest",
@@ -3583,7 +3577,7 @@ dependencies = [
 "rustical_xml",
 "serde",
 "sha2",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tokio",
 "tower",
 "tower-sessions",
@@ -3593,23 +3587,24 @@ dependencies = [

 [[package]]
 name = "rustical_store_sqlite"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "async-trait",
+ "caldata",
 "chrono",
 "criterion",
 "derive_more",
- "ical",
 "password-auth",
 "password-hash",
 "pbkdf2",
+ "regex",
 "rstest",
 "rustical_ical",
 "rustical_store",
 "serde",
 "sha2",
 "sqlx",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tokio",
 "tracing",
 "uuid",
@@ -3617,10 +3612,10 @@ dependencies = [

 [[package]]
 name = "rustical_xml"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "quick-xml",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "xml_derive",
 ]

@@ -3653,9 +3648,9 @@ dependencies = [

 [[package]]
 name = "rustls-pki-types"
-version = "1.13.2"
+version = "1.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21e6f2ab2928ca4291b86736a8bd920a277a399bba1589409d72154ff87c1282"
+checksum = "be040f8b0a225e40375822a563fa9524378b9d63112f53e19ffff34df5d33fdd"
 dependencies = [
 "web-time",
 "zeroize",
@@ -3663,9 +3658,9 @@ dependencies = [

 [[package]]
 name = "rustls-webpki"
-version = "0.103.8"
+version = "0.103.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ffdfa2f5286e2247234e03f680868ac2815974dc39e00ea15adc445d0aafe52"
+checksum = "d7df23109aa6c1567d1c575b9952556388da57401e4ace1d15f79eedad0d8f53"
 dependencies = [
 "ring",
 "rustls-pki-types",
@@ -3977,9 +3972,9 @@ dependencies = [

 [[package]]
 name = "socket2"
-version = "0.6.1"
+version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17129e116933cf371d018bb80ae557e889637989d8638274fb25622827b03881"
+checksum = "86f4aa3ad99f2088c990dfa82d367e19cb29268ed67c574d10d0a4bfe71f07e0"
 dependencies = [
 "libc",
 "windows-sys 0.60.2",
@@ -4045,7 +4040,7 @@ dependencies = [
 "serde_json",
 "sha2",
 "smallvec",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tokio",
 "tokio-stream",
 "tracing",
@@ -4129,7 +4124,7 @@ dependencies = [
 "smallvec",
 "sqlx-core",
 "stringprep",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tracing",
 "uuid",
 "whoami",
@@ -4168,7 +4163,7 @@ dependencies = [
 "smallvec",
 "sqlx-core",
 "stringprep",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tracing",
 "uuid",
 "whoami",
@@ -4194,7 +4189,7 @@ dependencies = [
 "serde",
 "serde_urlencoded",
 "sqlx-core",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "tracing",
 "url",
 "uuid",
@@ -4313,11 +4308,11 @@ dependencies = [

 [[package]]
 name = "thiserror"
-version = "2.0.17"
+version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f63587ca0f12b72a0600bcba1d40081f830876000bb46dd2337a3051618f4fc8"
+checksum = "4288b5bcbc7920c07a1149a35cf9590a2aa808e0bc1eafaade0b80947865fbc4"
 dependencies = [
- "thiserror-impl 2.0.17",
+ "thiserror-impl 2.0.18",
 ]

 [[package]]
@@ -4333,9 +4328,9 @@ dependencies = [

 [[package]]
 name = "thiserror-impl"
-version = "2.0.17"
+version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3ff15c8ecd7de3849db632e14d18d2571fa09dfc5ed93479bc4485c7a517c913"
+checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -4353,30 +4348,30 @@ dependencies = [

 [[package]]
 name = "time"
-version = "0.3.44"
+version = "0.3.46"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91e7d9e3bb61134e77bde20dd4825b97c010155709965fedf0f49bb138e52a9d"
+checksum = "9da98b7d9b7dad93488a84b8248efc35352b0b2657397d4167e7ad67e5d535e5"
 dependencies = [
 "deranged",
 "itoa",
 "num-conv",
 "powerfmt",
- "serde",
+ "serde_core",
 "time-core",
 "time-macros",
 ]

 [[package]]
 name = "time-core"
-version = "0.1.6"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40868e7c1d2f0b8d73e4a8c7f0ff63af4f6d19be117e90bd73eb1d62cf831c6b"
+checksum = "7694e1cfe791f8d31026952abf09c69ca6f6fa4e1a1229e18988f06a04a12dca"

 [[package]]
 name = "time-macros"
-version = "0.2.24"
+version = "0.2.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30cfb0125f12d9c277f35663a0a33f8c30190f4e4574868a330595412d34ebf3"
+checksum = "78cc610bac2dcee56805c99642447d4c5dbde4d01f752ffea0199aee1f601dc4"
 dependencies = [
 "num-conv",
 "time-core",
@@ -4611,9 +4606,9 @@ dependencies = [

 [[package]]
 name = "tower"
-version = "0.5.2"
+version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d039ad9159c98b70ecfd540b2573b97f7f52c3e8d9f8ad57a24b916a536975f9"
+checksum = "ebe5ef63511595f1344e2d5cfa636d973292adc0eec1f0ad45fae9f0851ab1d4"
 dependencies = [
 "futures-core",
 "futures-util",
@@ -4717,7 +4712,7 @@ dependencies = [
 "rand 0.8.5",
 "serde",
 "serde_json",
- "thiserror 2.0.17",
+ "thiserror 2.0.18",
 "time",
 "tokio",
 "tracing",
@@ -4948,12 +4943,12 @@ checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"

 [[package]]
 name = "vtimezones-rs"
-version = "0.2.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6728de8767c8dea44f41b88115a205ed23adc3302e1b4342be59d922934dae5"
+checksum = "1e4e9cf6888a927b6cec4aa2416f379885b92dd2aa4476bc83718fe58051f67e"
 dependencies = [
 "glob",
- "phf 0.12.1",
+ "phf 0.13.1",
 "phf_codegen",
 ]

@@ -4984,9 +4979,9 @@ checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"

 [[package]]
 name = "wasip2"
-version = "1.0.1+wasi-0.2.4"
+version = "1.0.2+wasi-0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0562428422c63773dad2c345a1882263bbf4d65cf3f42e90921f787ef5ad58e7"
+checksum = "9517f9239f02c069db75e65f174b3da828fe5f5b945c4dd26bd25d89c03ebcf5"
 dependencies = [
 "wit-bindgen",
 ]
@@ -4999,9 +4994,9 @@ checksum = "b8dad83b4f25e74f184f64c43b150b91efe7647395b42289f38e50566d82855b"

 [[package]]
 name = "wasm-bindgen"
-version = "0.2.106"
+version = "0.2.108"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d759f433fa64a2d763d1340820e46e111a7a5ab75f993d1852d70b03dbb80fd"
+checksum = "64024a30ec1e37399cf85a7ffefebdb72205ca1c972291c51512360d90bd8566"
 dependencies = [
 "cfg-if",
 "once_cell",
@@ -5012,11 +5007,12 @@ dependencies = [

 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.56"
+version = "0.4.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "836d9622d604feee9e5de25ac10e3ea5f2d65b41eac0d9ce72eb5deae707ce7c"
+checksum = "70a6e77fd0ae8029c9ea0063f87c46fde723e7d887703d74ad2616d792e51e6f"
 dependencies = [
 "cfg-if",
+ "futures-util",
 "js-sys",
 "once_cell",
 "wasm-bindgen",
@@ -5025,9 +5021,9 @@ dependencies = [

 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.106"
+version = "0.2.108"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "48cb0d2638f8baedbc542ed444afc0644a29166f1595371af4fecf8ce1e7eeb3"
+checksum = "008b239d9c740232e71bd39e8ef6429d27097518b6b30bdf9086833bd5b6d608"
 dependencies = [
 "quote",
 "wasm-bindgen-macro-support",
@@ -5035,9 +5031,9 @@ dependencies = [

 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.106"
+version = "0.2.108"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cefb59d5cd5f92d9dcf80e4683949f15ca4b511f4ac0a6e14d4e1ac60c6ecd40"
+checksum = "5256bae2d58f54820e6490f9839c49780dff84c65aeab9e772f15d5f0e913a55"
 dependencies = [
 "bumpalo",
 "proc-macro2",
@@ -5048,18 +5044,18 @@ dependencies = [

 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.106"
+version = "0.2.108"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cbc538057e648b67f72a982e708d485b2efa771e1ac05fec311f9f63e5800db4"
+checksum = "1f01b580c9ac74c8d8f0c0e4afb04eeef2acf145458e52c03845ee9cd23e3d12"
 dependencies = [
 "unicode-ident",
 ]

 [[package]]
 name = "web-sys"
-version = "0.3.83"
+version = "0.3.85"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b32828d774c412041098d182a8b38b16ea816958e07cf40eec2bc080ae137ac"
+checksum = "312e32e551d92129218ea9a2452120f4aabc03529ef03e4d0d82fb2780608598"
 dependencies = [
 "js-sys",
 "wasm-bindgen",
@@ -5426,9 +5422,9 @@ dependencies = [

 [[package]]
 name = "wit-bindgen"
-version = "0.46.0"
+version = "0.51.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
+checksum = "d7249219f66ced02969388cf2bb044a09756a083d0fab1e566056b04d9fbcaa5"

 [[package]]
 name = "writeable"
@@ -5438,7 +5434,7 @@ checksum = "9edde0db4769d2dc68579893f2306b26c6ecfbe0ef499b013d731b7b9247e0b9"

 [[package]]
 name = "xml_derive"
-version = "0.11.10"
+version = "0.12.3"
 dependencies = [
 "darling 0.23.0",
 "heck",
@@ -5559,6 +5555,6 @@ dependencies = [

 [[package]]
 name = "zmij"
-version = "1.0.13"
+version = "1.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac93432f5b761b22864c774aac244fa5c0fd877678a4c37ebf6cf42208f9c9ec"
+checksum = "dfcd145825aace48cff44a8844de64bf75feec3080e0aa5cdbde72961ae51a65"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 members = ["crates/*"]

 [workspace.package]
-version = "0.11.10"
+version = "0.12.3"
 rust-version = "1.92"
 edition = "2024"
 description = "A CalDAV server"
@@ -73,7 +73,7 @@ tokio = { version = "1.48", features = [
 url = "2.5"
 base64 = "0.22"
 thiserror = "2.0"
-quick-xml = { version = "0.38" }
+quick-xml = { version = "0.39" }
 rust-embed = "8.9"
 tower-sessions = "0.14"
 futures-core = "0.3"
@@ -107,9 +107,7 @@ strum = "0.27"
 strum_macros = "0.27"
 serde_json = { version = "1.0", features = ["raw_value"] }
 sqlx-sqlite = { version = "0.8", features = ["bundled"] }
-ical = { git = "https://github.com/lennart-k/ical-rs", branch = "dev", features = [
-  "chrono-tz",
-] }
+caldata = { version = "0.14.0", features = ["chrono-tz", "vtimezones-rs"] }
 toml = "0.9"
 tower = "0.5"
 tower-http = { version = "0.6", features = [
@@ -139,7 +137,7 @@ reqwest = { version = "0.12", features = [
 openidconnect = "4.0"
 clap = { version = "4.5", features = ["derive", "env"] }
 matchit-serde = { git = "https://github.com/lennart-k/matchit-serde", rev = "e18e65d7" }
-vtimezones-rs = "0.2"
+vtimezones-rs = "0.3"
 ece = { version = "2.3", default-features = false, features = [
  "backend-openssl",
 ] }
@@ -153,6 +151,7 @@ criterion = { version = "0.8", features = ["async_tokio"] }
 rstest.workspace = true
 rustical_store_sqlite = { workspace = true, features = ["test"] }
 insta.workspace = true
+similar-asserts.workspace = true

 [dependencies]
 rustical_store.workspace = true
@@ -160,6 +159,7 @@ rustical_store_sqlite.workspace = true
 rustical_caldav.workspace = true
 rustical_carddav.workspace = true
 rustical_frontend.workspace = true
+caldata.workspace = true
 toml.workspace = true
 serde.workspace = true
 tokio.workspace = true
--- a/2
+++ b/2
@@ -36,7 +36,7 @@ COPY --from=planner /rustical/recipe.json recipe.json
 RUN cargo chef cook --release --target "$(cat /tmp/rust_target)"

 COPY . .
-RUN cargo install --target "$(cat /tmp/rust_target)" --path .
+RUN cargo install --locked --target "$(cat /tmp/rust_target)" --path .

 FROM scratch
 COPY --from=builder /usr/local/cargo/bin/rustical /usr/local/bin/rustical
--- a/crates/caldav/Cargo.toml
+++ b/crates/caldav/Cargo.toml
@@ -34,7 +34,7 @@ rustical_store.workspace = true
 chrono.workspace = true
 chrono-tz.workspace = true
 sha2.workspace = true
-ical.workspace = true
+caldata.workspace = true
 percent-encoding.workspace = true
 rustical_xml.workspace = true
 uuid.workspace = true
--- a/crates/caldav/src/calendar/methods/get.rs
+++ b/crates/caldav/src/calendar/methods/get.rs
@@ -3,11 +3,11 @@ use crate::calendar::CalendarResourceService;
 use axum::body::Body;
 use axum::extract::State;
 use axum::{extract::Path, response::Response};
+use caldata::component::IcalCalendar;
+use caldata::generator::Emitter;
+use caldata::parser::ContentLine;
 use headers::{ContentType, HeaderMapExt};
 use http::{HeaderValue, Method, StatusCode, header};
-use ical::component::IcalCalendar;
-use ical::generator::Emitter;
-use ical::property::ContentLine;
 use percent_encoding::{CONTROLS, utf8_percent_encode};
 use rustical_store::{CalendarStore, SubscriptionStore, auth::Principal};
 use std::str::FromStr;
--- a/crates/caldav/src/calendar/methods/import.rs
+++ b/crates/caldav/src/calendar/methods/import.rs
@@ -4,14 +4,14 @@ use axum::{
    extract::{Path, State},
    response::{IntoResponse, Response},
 };
+use caldata::component::{Component, ComponentMut};
+use caldata::{IcalParser, parser::ParserOptions};
 use http::StatusCode;
-use ical::parser::{Component, ComponentMut};
 use rustical_dav::header::Overwrite;
 use rustical_ical::CalendarObjectType;
 use rustical_store::{
    Calendar, CalendarMetadata, CalendarStore, SubscriptionStore, auth::Principal,
 };
-use std::io::BufReader;
 use tracing::instrument;

 #[instrument(skip(resource_service))]
@@ -26,11 +26,11 @@ pub async fn route_import<C: CalendarStore, S: SubscriptionStore>(
        return Err(Error::Unauthorized);
    }

-    let parser = ical::IcalParser::new(BufReader::new(body.as_bytes()));
-    let mut cal = parser
-        .expect_one()
-        .map_err(rustical_ical::Error::ParserError)?
-        .mutable();
+    let parser = IcalParser::from_slice(body.as_bytes());
+    let mut cal = match parser.expect_one() {
+        Ok(cal) => cal.mutable(),
+        Err(err) => return Ok((StatusCode::BAD_REQUEST, err.to_string()).into_response()),
+    };

    // Extract calendar metadata
    let displayname = cal
@@ -50,7 +50,7 @@ pub async fn route_import<C: CalendarStore, S: SubscriptionStore>(
    cal.remove_property("X-WR-CALDESC");
    cal.remove_property("X-WR-CALCOLOR");
    cal.remove_property("X-WR-TIMEZONE");
-    let cal = cal.build(None).unwrap();
+    let cal = cal.build(&ParserOptions::default(), None).unwrap();

    // Make sure timezone is valid
    if let Some(timezone_id) = timezone_id.as_ref() {
@@ -71,12 +71,10 @@ pub async fn route_import<C: CalendarStore, S: SubscriptionStore>(
        cal_components.push(CalendarObjectType::Todo);
    }

-    let objects = cal
-        .into_objects()
-        .map_err(rustical_ical::Error::ParserError)?
-        .into_iter()
-        .map(Into::into)
-        .collect();
+    let objects = match cal.into_objects() {
+        Ok(objects) => objects.into_iter().map(Into::into).collect(),
+        Err(err) => return Ok((StatusCode::BAD_REQUEST, err.to_string()).into_response()),
+    };
    let new_cal = Calendar {
        principal,
        id: cal_id,
--- a/crates/caldav/src/calendar/methods/mkcalendar.rs
+++ b/crates/caldav/src/calendar/methods/mkcalendar.rs
@@ -1,10 +1,13 @@
+use std::str::FromStr;
+
 use crate::Error;
 use crate::calendar::CalendarResourceService;
 use crate::calendar::prop::SupportedCalendarComponentSet;
+use crate::error::Precondition;
 use axum::extract::{Path, State};
 use axum::response::{IntoResponse, Response};
+use caldata::IcalParser;
 use http::{Method, StatusCode};
-use ical::IcalParser;
 use rustical_dav::xml::HrefElement;
 use rustical_ical::CalendarObjectType;
 use rustical_store::auth::Principal;
@@ -84,21 +87,33 @@ pub async fn route_mkcalendar<C: CalendarStore, S: SubscriptionStore>(
    }

    let timezone_id = if let Some(tzid) = request.calendar_timezone_id {
+        if chrono_tz::Tz::from_str(&tzid).is_err() {
+            return Err(Error::PreconditionFailed(Precondition::CalendarTimezone(
+                "Invalid timezone ID in calendar-timezone-id",
+            )));
+        }
        Some(tzid)
    } else if let Some(tz) = request.calendar_timezone {
-        // TODO: Proper error (calendar-timezone precondition)
-        let calendar = IcalParser::new(tz.as_bytes())
+        let calendar = IcalParser::from_slice(tz.as_bytes())
            .next()
-            .ok_or_else(|| rustical_dav::Error::BadRequest("No timezone data provided".to_owned()))?
-            .map_err(|_| rustical_dav::Error::BadRequest("Error parsing timezone".to_owned()))?;
+            .ok_or(Error::PreconditionFailed(Precondition::CalendarTimezone(
+                "No timezone data provided",
+            )))?
+            .map_err(|_| {
+                Error::PreconditionFailed(Precondition::CalendarTimezone("Error parsing timezone"))
+            })?;

-        let timezone = calendar.vtimezones.values().next().ok_or_else(|| {
-            rustical_dav::Error::BadRequest("No timezone data provided".to_owned())
-        })?;
+        let timezone = calendar
+            .vtimezones
+            .values()
+            .next()
+            .ok_or(Error::PreconditionFailed(Precondition::CalendarTimezone(
+                "No timezone data provided",
+            )))?;
        let timezone: Option<chrono_tz::Tz> = timezone.into();
-        let timezone = timezone.ok_or_else(|| {
-            rustical_dav::Error::BadRequest("Cannot translate VTIMEZONE into IANA TZID".to_owned())
-        })?;
+        let timezone = timezone.ok_or(Error::PreconditionFailed(
+            Precondition::CalendarTimezone("No timezone data provided"),
+        ))?;

        Some(timezone.name().to_owned())
    } else {
--- a/crates/caldav/src/calendar/methods/report/calendar_query/comp_filter.rs
+++ b/crates/caldav/src/calendar/methods/report/calendar_query/comp_filter.rs
@@ -1,9 +1,13 @@
 use crate::calendar::methods::report::calendar_query::{
-    TimeRangeElement, prop_filter::PropFilterElement,
+    TimeRangeElement,
+    prop_filter::{PropFilterElement, PropFilterable},
 };
-use ical::{
-    component::IcalCalendarObject,
-    parser::{Component, ical::component::IcalTimeZone},
+use caldata::{
+    component::{
+        CalendarInnerData, Component, IcalAlarm, IcalCalendarObject, IcalEvent, IcalTimeZone,
+        IcalTodo,
+    },
+    parser::ContentLine,
 };
 use rustical_xml::XmlDeserialize;

@@ -25,7 +29,9 @@ pub struct CompFilterElement {
    pub(crate) name: String,
 }

-pub trait CompFilterable: Component + Sized {
+pub trait CompFilterable: PropFilterable + Sized {
+    fn get_comp_name(&self) -> &'static str;
+
    fn match_time_range(&self, time_range: &TimeRangeElement) -> bool;

    fn match_subcomponents(&self, comp_filter: &CompFilterElement) -> bool;
@@ -67,7 +73,94 @@ pub trait CompFilterable: Component + Sized {
    }
 }

+impl CompFilterable for CalendarInnerData {
+    fn get_comp_name(&self) -> &'static str {
+        match self {
+            Self::Event(main, _) => main.get_comp_name(),
+            Self::Journal(main, _) => main.get_comp_name(),
+            Self::Todo(main, _) => main.get_comp_name(),
+        }
+    }
+
+    fn match_time_range(&self, time_range: &TimeRangeElement) -> bool {
+        if let Some(start) = &time_range.start
+            && let Some(last_end) = self.get_last_occurence()
+            && start.to_utc() > last_end.utc()
+        {
+            return false;
+        }
+        if let Some(end) = &time_range.end
+            && let Some(first_start) = self.get_first_occurence()
+            && end.to_utc() < first_start.utc()
+        {
+            return false;
+        }
+        true
+    }
+
+    fn match_subcomponents(&self, comp_filter: &CompFilterElement) -> bool {
+        match self {
+            Self::Event(main, overrides) => std::iter::once(main)
+                .chain(overrides.iter())
+                .flat_map(IcalEvent::get_alarms)
+                .any(|alarm| alarm.matches(comp_filter)),
+            Self::Todo(main, overrides) => std::iter::once(main)
+                .chain(overrides.iter())
+                .flat_map(IcalTodo::get_alarms)
+                .any(|alarm| alarm.matches(comp_filter)),
+            // VJOURNAL has no subcomponents
+            Self::Journal(_, _) => comp_filter.is_not_defined.is_some(),
+        }
+    }
+}
+
+impl PropFilterable for IcalAlarm {
+    fn get_named_properties<'a>(&'a self, name: &'a str) -> impl Iterator<Item = &'a ContentLine> {
+        Component::get_named_properties(self, name)
+    }
+}
+
+impl CompFilterable for IcalAlarm {
+    fn get_comp_name(&self) -> &'static str {
+        Component::get_comp_name(self)
+    }
+
+    fn match_time_range(&self, _time_range: &TimeRangeElement) -> bool {
+        true
+    }
+
+    fn match_subcomponents(&self, comp_filter: &CompFilterElement) -> bool {
+        comp_filter.is_not_defined.is_some()
+    }
+}
+
+impl PropFilterable for CalendarInnerData {
+    #[allow(refining_impl_trait)]
+    fn get_named_properties<'a>(
+        &'a self,
+        name: &'a str,
+    ) -> Box<dyn Iterator<Item = &'a ContentLine> + 'a> {
+        // TODO: If we were pedantic, we would have to do recurrence expansion first
+        // and take into account the overrides :(
+        match self {
+            Self::Event(main, _) => Box::new(main.get_named_properties(name)),
+            Self::Todo(main, _) => Box::new(main.get_named_properties(name)),
+            Self::Journal(main, _) => Box::new(main.get_named_properties(name)),
+        }
+    }
+}
+
+impl PropFilterable for IcalCalendarObject {
+    fn get_named_properties<'a>(&'a self, name: &'a str) -> impl Iterator<Item = &'a ContentLine> {
+        Component::get_named_properties(self, name)
+    }
+}
+
 impl CompFilterable for IcalCalendarObject {
+    fn get_comp_name(&self) -> &'static str {
+        Component::get_comp_name(self)
+    }
+
    fn match_time_range(&self, _time_range: &TimeRangeElement) -> bool {
        // VCALENDAR has no concept of time range
        false
@@ -78,23 +171,33 @@ impl CompFilterable for IcalCalendarObject {
            .get_vtimezones()
            .values()
            .map(|tz| tz.matches(comp_filter))
-            .chain([self.matches(comp_filter)]);
+            .chain([self.get_inner().matches(comp_filter)]);

        if comp_filter.is_not_defined.is_some() {
-            matches.all(|x| x)
+            matches.all(|x| !x)
        } else {
            matches.any(|x| x)
        }
    }
 }

+impl PropFilterable for IcalTimeZone {
+    fn get_named_properties<'a>(&'a self, name: &'a str) -> impl Iterator<Item = &'a ContentLine> {
+        Component::get_named_properties(self, name)
+    }
+}
+
 impl CompFilterable for IcalTimeZone {
+    fn get_comp_name(&self) -> &'static str {
+        Component::get_comp_name(self)
+    }
    fn match_time_range(&self, _time_range: &TimeRangeElement) -> bool {
        false
    }

-    fn match_subcomponents(&self, _comp_filter: &CompFilterElement) -> bool {
-        true
+    fn match_subcomponents(&self, comp_filter: &CompFilterElement) -> bool {
+        // VTIMEZONE has no subcomponents
+        comp_filter.is_not_defined.is_some()
    }
 }

@@ -111,6 +214,7 @@ mod tests {
    const ICS: &str = r"BEGIN:VCALENDAR
 CALSCALE:GREGORIAN
 VERSION:2.0
+PRODID:me
 BEGIN:VTIMEZONE
 TZID:Europe/Berlin
 X-LIC-LOCATION:Europe/Berlin
--- a/crates/caldav/src/calendar/methods/report/calendar_query/elements.rs
+++ b/crates/caldav/src/calendar/methods/report/calendar_query/elements.rs
@@ -1,6 +1,6 @@
 use super::comp_filter::{CompFilterElement, CompFilterable};
 use crate::calendar_object::CalendarObjectPropWrapperName;
-use ical::{component::IcalCalendarObject, property::ContentLine};
+use caldata::{component::IcalCalendarObject, parser::ContentLine};
 use rustical_dav::xml::{PropfindType, TextMatchElement};
 use rustical_ical::UtcDateTime;
 use rustical_store::calendar_store::CalendarQuery;
--- a/crates/caldav/src/calendar/methods/report/calendar_query/prop_filter.rs
+++ b/crates/caldav/src/calendar/methods/report/calendar_query/prop_filter.rs
@@ -1,5 +1,5 @@
 use super::{ParamFilterElement, TimeRangeElement};
-use ical::{parser::Component, property::ContentLine, types::CalDateTime};
+use caldata::{parser::ContentLine, types::CalDateTime};
 use rustical_dav::xml::TextMatchElement;
 use rustical_ical::UtcDateTime;
 use rustical_xml::XmlDeserialize;
@@ -21,6 +21,10 @@ pub struct PropFilterElement {
    pub(crate) name: String,
 }

+pub trait PropFilterable {
+    fn get_named_properties<'a>(&'a self, name: &'a str) -> impl Iterator<Item = &'a ContentLine>;
+}
+
 impl PropFilterElement {
    #[must_use]
    pub fn match_property(&self, property: &ContentLine) -> bool {
@@ -60,7 +64,7 @@ impl PropFilterElement {
        true
    }

-    pub fn match_component(&self, comp: &impl Component) -> bool {
+    pub fn match_component(&self, comp: &impl PropFilterable) -> bool {
        let mut properties = comp.get_named_properties(&self.name);
        if self.is_not_defined.is_some() {
            return properties.next().is_none();
--- a/crates/caldav/src/calendar/resource.rs
+++ b/crates/caldav/src/calendar/resource.rs
@@ -1,10 +1,10 @@
 use super::prop::{SupportedCalendarComponentSet, SupportedCalendarData};
 use crate::Error;
 use crate::calendar::prop::{ReportMethod, SupportedCollationSet};
+use caldata::IcalParser;
+use caldata::types::CalDateTime;
 use chrono::{DateTime, Utc};
 use derive_more::derive::{From, Into};
-use ical::IcalParser;
-use ical::types::CalDateTime;
 use rustical_dav::extensions::{
    CommonPropertiesExtension, CommonPropertiesProp, SyncTokenExtension, SyncTokenExtensionProp,
 };
@@ -202,7 +202,7 @@ impl Resource for CalendarResource {
                CalendarProp::CalendarTimezone(timezone) => {
                    if let Some(tz) = timezone {
                        // TODO: Proper error (calendar-timezone precondition)
-                        let calendar = IcalParser::new(tz.as_bytes())
+                        let calendar = IcalParser::from_slice(tz.as_bytes())
                            .next()
                            .ok_or_else(|| {
                                rustical_dav::Error::BadRequest(
--- a/crates/caldav/src/calendar/service.rs
+++ b/crates/caldav/src/calendar/service.rs
@@ -6,7 +6,7 @@ use crate::calendar::methods::report::route_report_calendar;
 use crate::calendar::resource::CalendarResource;
 use crate::calendar_object::CalendarObjectResourceService;
 use crate::calendar_object::resource::CalendarObjectResource;
-use crate::{CalDavPrincipalUri, Error};
+use crate::{CalDavConfig, CalDavPrincipalUri, Error};
 use async_trait::async_trait;
 use axum::Router;
 use axum::extract::Request;
@@ -23,6 +23,7 @@ use tower::Service;
 pub struct CalendarResourceService<C: CalendarStore, S: SubscriptionStore> {
    pub(crate) cal_store: Arc<C>,
    pub(crate) sub_store: Arc<S>,
+    pub(crate) config: Arc<CalDavConfig>,
 }

 impl<C: CalendarStore, S: SubscriptionStore> Clone for CalendarResourceService<C, S> {
@@ -30,15 +31,17 @@ impl<C: CalendarStore, S: SubscriptionStore> Clone for CalendarResourceService<C
        Self {
            cal_store: self.cal_store.clone(),
            sub_store: self.sub_store.clone(),
+            config: self.config.clone(),
        }
    }
 }

 impl<C: CalendarStore, S: SubscriptionStore> CalendarResourceService<C, S> {
-    pub const fn new(cal_store: Arc<C>, sub_store: Arc<S>) -> Self {
+    pub const fn new(cal_store: Arc<C>, sub_store: Arc<S>, config: Arc<CalDavConfig>) -> Self {
        Self {
            cal_store,
            sub_store,
+            config,
        }
    }
 }
@@ -112,7 +115,8 @@ impl<C: CalendarStore, S: SubscriptionStore> ResourceService for CalendarResourc
        Router::new()
            .nest(
                "/{object_id}",
-                CalendarObjectResourceService::new(self.cal_store.clone()).axum_router(),
+                CalendarObjectResourceService::new(self.cal_store.clone(), self.config.clone())
+                    .axum_router(),
            )
            .route_service("/", self.axum_service())
    }
--- a/crates/caldav/src/calendar/snapshots/rustical_caldavcalendartests__propfind-2.snap
+++ b/crates/caldav/src/calendar/snapshots/rustical_caldavcalendartests__propfind-2.snap
@@ -12,7 +12,7 @@ PRODID:-//github.com/lennart-k/vzic-rs//RustiCal Calendar server//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
 TZID:Europe/Berlin
-LAST-MODIFIED:20250723T190331Z
+LAST-MODIFIED:20260124T185655Z
 X-LIC-LOCATION:Europe/Berlin
 X-PROLEPTIC-TZNAME:LMT
 BEGIN:STANDARD
--- a/crates/caldav/src/calendar_object/methods.rs
+++ b/crates/caldav/src/calendar_object/methods.rs
@@ -5,13 +5,14 @@ use axum::body::Body;
 use axum::extract::{Path, State};
 use axum::response::{IntoResponse, Response};
 use axum_extra::TypedHeader;
+use caldata::parser::ParserOptions;
 use headers::{ContentType, ETag, HeaderMapExt, IfNoneMatch};
 use http::{HeaderMap, HeaderValue, Method, StatusCode};
 use rustical_ical::CalendarObject;
 use rustical_store::CalendarStore;
 use rustical_store::auth::Principal;
 use std::str::FromStr;
-use tracing::{debug, instrument};
+use tracing::{instrument, warn};

 #[instrument(skip(cal_store))]
 pub async fn get_event<C: CalendarStore>(
@@ -20,7 +21,10 @@ pub async fn get_event<C: CalendarStore>(
        calendar_id,
        object_id,
    }): Path<CalendarObjectPathComponents>,
-    State(CalendarObjectResourceService { cal_store }): State<CalendarObjectResourceService<C>>,
+    State(CalendarObjectResourceService {
+        cal_store,
+        config: _,
+    }): State<CalendarObjectResourceService<C>>,
    user: Principal,
    method: Method,
 ) -> Result<Response, Error> {
@@ -57,7 +61,9 @@ pub async fn put_event<C: CalendarStore>(
        calendar_id,
        object_id,
    }): Path<CalendarObjectPathComponents>,
-    State(CalendarObjectResourceService { cal_store }): State<CalendarObjectResourceService<C>>,
+    State(CalendarObjectResourceService { cal_store, config }): State<
+        CalendarObjectResourceService<C>,
+    >,
    user: Principal,
    mut if_none_match: Option<TypedHeader<IfNoneMatch>>,
    header_map: HeaderMap,
@@ -94,9 +100,18 @@ pub async fn put_event<C: CalendarStore>(
        true
    };

-    let Ok(object) = CalendarObject::from_ics(body.clone()) else {
-        debug!("invalid calendar data:\n{body}");
-        return Err(Error::PreconditionFailed(Precondition::ValidCalendarData));
+    let object = match CalendarObject::import(
+        &body,
+        Some(ParserOptions {
+            rfc7809: config.rfc7809,
+        }),
+    ) {
+        Ok(object) => object,
+        Err(err) => {
+            warn!("invalid calendar data:\n{body}");
+            warn!("{err}");
+            return Err(Error::PreconditionFailed(Precondition::ValidCalendarData));
+        }
    };
    let etag = object.get_etag();
    cal_store
--- a/crates/caldav/src/calendar_object/resource.rs
+++ b/crates/caldav/src/calendar_object/resource.rs
@@ -3,8 +3,8 @@ use super::prop::{
    CalendarObjectPropWrapperName,
 };
 use crate::Error;
+use caldata::generator::Emitter;
 use derive_more::derive::{From, Into};
-use ical::generator::Emitter;
 use rustical_dav::{
    extensions::CommonPropertiesExtension,
    privileges::UserPrivilegeSet,
--- a/crates/caldav/src/calendar_object/service.rs
+++ b/crates/caldav/src/calendar_object/service.rs
@@ -1,5 +1,5 @@
 use crate::{
-    CalDavPrincipalUri, Error,
+    CalDavConfig, CalDavPrincipalUri, Error,
    calendar_object::{
        methods::{get_event, put_event},
        resource::CalendarObjectResource,
@@ -24,19 +24,21 @@ pub struct CalendarObjectPathComponents {

 pub struct CalendarObjectResourceService<C: CalendarStore> {
    pub(crate) cal_store: Arc<C>,
+    pub(crate) config: Arc<CalDavConfig>,
 }

 impl<C: CalendarStore> Clone for CalendarObjectResourceService<C> {
    fn clone(&self) -> Self {
        Self {
            cal_store: self.cal_store.clone(),
+            config: self.config.clone(),
        }
    }
 }

 impl<C: CalendarStore> CalendarObjectResourceService<C> {
-    pub const fn new(cal_store: Arc<C>) -> Self {
-        Self { cal_store }
+    pub const fn new(cal_store: Arc<C>, config: Arc<CalDavConfig>) -> Self {
+        Self { cal_store, config }
    }
 }

--- a/crates/caldav/src/error.rs
+++ b/crates/caldav/src/error.rs
@@ -12,6 +12,9 @@ pub enum Precondition {
    #[error("valid-calendar-data")]
    #[xml(ns = "rustical_dav::namespace::NS_CALDAV")]
    ValidCalendarData,
+    #[error("calendar-timezone")]
+    #[xml(ns = "rustical_dav::namespace::NS_CALDAV")]
+    CalendarTimezone(&'static str),
 }

 impl IntoResponse for Precondition {
@@ -23,7 +26,7 @@ impl IntoResponse for Precondition {
        if let Err(err) = error.serialize_root(&mut writer) {
            return rustical_dav::Error::from(err).into_response();
        }
-        let mut res = Response::builder().status(StatusCode::PRECONDITION_FAILED);
+        let mut res = Response::builder().status(StatusCode::FORBIDDEN);
        res.headers_mut().unwrap().typed_insert(ContentType::xml());
        res.body(Body::from(output)).unwrap()
    }
@@ -52,9 +55,6 @@ pub enum Error {
    #[error(transparent)]
    XmlDecodeError(#[from] rustical_xml::XmlError),

-    #[error(transparent)]
-    IcalError(#[from] rustical_ical::Error),
-
    #[error(transparent)]
    PreconditionFailed(Precondition),
 }
@@ -75,18 +75,20 @@ impl Error {
            Self::XmlDecodeError(_) => StatusCode::BAD_REQUEST,
            Self::ChronoParseError(_) | Self::NotImplemented => StatusCode::INTERNAL_SERVER_ERROR,
            Self::NotFound => StatusCode::NOT_FOUND,
-            Self::IcalError(err) => err.status_code(),
-            Self::PreconditionFailed(_err) => StatusCode::PRECONDITION_FAILED,
+            // The correct status code for a failed precondition is not PreconditionFailed but
+            // Forbidden (or Conflict):
+            // https://datatracker.ietf.org/doc/html/rfc4791#section-1.3
+            Self::PreconditionFailed(_err) => StatusCode::FORBIDDEN,
        }
    }
 }

 impl IntoResponse for Error {
    fn into_response(self) -> axum::response::Response {
-        if matches!(
-            self.status_code(),
-            StatusCode::INTERNAL_SERVER_ERROR | StatusCode::PRECONDITION_FAILED
-        ) {
+        if let Self::PreconditionFailed(precondition) = self {
+            return precondition.into_response();
+        }
+        if matches!(self.status_code(), StatusCode::INTERNAL_SERVER_ERROR) {
            error!("{self}");
        }
        (self.status_code(), self.to_string()).into_response()
--- a/crates/caldav/src/lib.rs
+++ b/crates/caldav/src/lib.rs
@@ -8,6 +8,7 @@ use rustical_dav::resources::RootResourceService;
 use rustical_store::auth::middleware::AuthenticationLayer;
 use rustical_store::auth::{AuthenticationProvider, Principal};
 use rustical_store::{CalendarStore, SubscriptionStore};
+use serde::{Deserialize, Serialize};
 use std::sync::Arc;

 pub mod calendar;
@@ -34,6 +35,7 @@ pub fn caldav_router<AP: AuthenticationProvider, C: CalendarStore, S: Subscripti
    store: Arc<C>,
    subscription_store: Arc<S>,
    simplified_home_set: bool,
+    config: Arc<CalDavConfig>,
 ) -> Router {
    Router::new().nest(
        prefix,
@@ -42,9 +44,27 @@ pub fn caldav_router<AP: AuthenticationProvider, C: CalendarStore, S: Subscripti
            sub_store: subscription_store,
            cal_store: store,
            simplified_home_set,
+            config,
        })
        .axum_router()
        .layer(AuthenticationLayer::new(auth_provider))
        .layer(Extension(CalDavPrincipalUri(prefix))),
    )
 }
+
+const fn default_true() -> bool {
+    true
+}
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+#[serde(deny_unknown_fields, default)]
+pub struct CalDavConfig {
+    #[serde(default = "default_true")]
+    rfc7809: bool,
+}
+
+impl Default for CalDavConfig {
+    fn default() -> Self {
+        Self { rfc7809: true }
+    }
+}
--- a/crates/caldav/src/principal/service.rs
+++ b/crates/caldav/src/principal/service.rs
@@ -1,7 +1,7 @@
 use crate::calendar::CalendarResourceService;
 use crate::calendar::resource::CalendarResource;
 use crate::principal::PrincipalResource;
-use crate::{CalDavPrincipalUri, Error};
+use crate::{CalDavConfig, CalDavPrincipalUri, Error};
 use async_trait::async_trait;
 use axum::Router;
 use rustical_dav::resource::{AxumMethods, ResourceService};
@@ -20,6 +20,7 @@ pub struct PrincipalResourceService<
    pub(crate) cal_store: Arc<CS>,
    // If true only return the principal as the calendar home set, otherwise also groups
    pub(crate) simplified_home_set: bool,
+    pub(crate) config: Arc<CalDavConfig>,
 }

 impl<AP: AuthenticationProvider, S: SubscriptionStore, CS: CalendarStore> Clone
@@ -31,6 +32,7 @@ impl<AP: AuthenticationProvider, S: SubscriptionStore, CS: CalendarStore> Clone
            sub_store: self.sub_store.clone(),
            cal_store: self.cal_store.clone(),
            simplified_home_set: self.simplified_home_set,
+            config: self.config.clone(),
        }
    }
 }
@@ -84,8 +86,12 @@ impl<AP: AuthenticationProvider, S: SubscriptionStore, CS: CalendarStore> Resour
        Router::new()
            .nest(
                "/{calendar_id}",
-                CalendarResourceService::new(self.cal_store.clone(), self.sub_store.clone())
-                    .axum_router(),
+                CalendarResourceService::new(
+                    self.cal_store.clone(),
+                    self.sub_store.clone(),
+                    self.config.clone(),
+                )
+                .axum_router(),
            )
            .route_service("/", self.axum_service())
    }
--- a/crates/caldav/src/principal/tests.rs
+++ b/crates/caldav/src/principal/tests.rs
@@ -27,6 +27,7 @@ async fn test_principal_resource(
        sub_store: Arc::new(sub_store),
        auth_provider: Arc::new(auth_provider),
        simplified_home_set: false,
+        config: Default::default(),
    };

    // We don't have any calendars here
--- a/crates/carddav/Cargo.toml
+++ b/crates/carddav/Cargo.toml
@@ -32,7 +32,7 @@ rustical_ical.workspace = true
 http.workspace = true
 tower-http.workspace = true
 percent-encoding.workspace = true
-ical.workspace = true
+caldata.workspace = true
 strum.workspace = true
 strum_macros.workspace = true
 rstest.workspace = true
--- a/crates/carddav/src/address_object/methods.rs
+++ b/crates/carddav/src/address_object/methods.rs
@@ -103,7 +103,10 @@ pub async fn put_object<AS: AddressbookStore>(
        true
    };

-    let object = AddressObject::from_vcf(body)?;
+    let object = match AddressObject::from_vcf(body) {
+        Ok(object) => object,
+        Err(err) => return Ok((StatusCode::BAD_REQUEST, err.to_string()).into_response()),
+    };
    let etag = object.get_etag();
    addr_store
        .put_object(&principal, &addressbook_id, &object_id, object, overwrite)
--- a/crates/carddav/src/address_object/resource.rs
+++ b/crates/carddav/src/address_object/resource.rs
@@ -7,6 +7,7 @@ use crate::{
        AddressObjectPropWrapperName,
    },
 };
+use caldata::property::VcardFNProperty;
 use derive_more::derive::{From, Into};
 use rustical_dav::{
    extensions::CommonPropertiesExtension,
@@ -70,8 +71,11 @@ impl Resource for AddressObjectResource {
    }

    fn get_displayname(&self) -> Option<&str> {
-        todo!()
-        // self.object.get_full_name()
+        self.object
+            .get_vcard()
+            .full_name
+            .first()
+            .map(|VcardFNProperty(name, _)| name.as_str())
    }

    fn get_owner(&self) -> Option<&str> {
--- a/crates/carddav/src/addressbook/methods/import.rs
+++ b/crates/carddav/src/addressbook/methods/import.rs
@@ -4,13 +4,13 @@ use axum::{
    extract::{Path, State},
    response::{IntoResponse, Response},
 };
-use http::StatusCode;
-use ical::{
-    parser::{Component, ComponentMut, vcard},
-    property::ContentLine,
+use caldata::{
+    VcardParser,
+    component::{Component, ComponentMut},
+    parser::{ContentLine, ParserOptions},
 };
+use http::StatusCode;
 use rustical_store::{Addressbook, AddressbookStore, SubscriptionStore, auth::Principal};
-use std::io::BufReader;
 use tracing::instrument;

 #[instrument(skip(resource_service))]
@@ -24,7 +24,7 @@ pub async fn route_import<AS: AddressbookStore, S: SubscriptionStore>(
        return Err(Error::Unauthorized);
    }

-    let parser = vcard::VcardParser::new(BufReader::new(body.as_bytes()));
+    let parser = VcardParser::from_slice(body.as_bytes());

    let mut objects = vec![];
    for res in parser {
@@ -37,7 +37,7 @@ pub async fn route_import<AS: AddressbookStore, S: SubscriptionStore>(
                value: Some(uuid::Uuid::new_v4().to_string()),
                params: vec![].into(),
            });
-            card = card_mut.build(None).unwrap();
+            card = card_mut.build(&ParserOptions::default(), None).unwrap();
        }
        // TODO: Make nicer
        let uid = card.get_uid().unwrap();
--- a/crates/carddav/src/addressbook/methods/report/addressbook_query/elements.rs
+++ b/crates/carddav/src/addressbook/methods/report/addressbook_query/elements.rs
@@ -2,8 +2,8 @@ use crate::{
    address_object::AddressObjectPropWrapperName,
    addressbook::methods::report::addressbook_query::PropFilterElement,
 };
+use caldata::parser::ContentLine;
 use derive_more::{From, Into};
-use ical::property::ContentLine;
 use rustical_dav::xml::{PropfindType, TextMatchElement};
 use rustical_ical::{AddressObject, UtcDateTime};
 use rustical_xml::{ValueDeserialize, XmlDeserialize, XmlRootTag};
--- a/crates/carddav/src/addressbook/methods/report/addressbook_query/prop_filter.rs
+++ b/crates/carddav/src/addressbook/methods/report/addressbook_query/prop_filter.rs
@@ -1,5 +1,5 @@
 use super::{Allof, ParamFilterElement};
-use ical::{parser::Component, property::ContentLine};
+use caldata::{component::Component, parser::ContentLine};
 use rustical_dav::xml::TextMatchElement;
 use rustical_ical::AddressObject;
 use rustical_xml::XmlDeserialize;
--- a/crates/carddav/src/error.rs
+++ b/crates/carddav/src/error.rs
@@ -23,9 +23,6 @@ pub enum Error {

    #[error(transparent)]
    XmlDecodeError(#[from] rustical_xml::XmlError),
-
-    #[error(transparent)]
-    IcalError(#[from] rustical_ical::Error),
 }

 impl Error {
@@ -43,7 +40,6 @@ impl Error {
            Self::XmlDecodeError(_) => StatusCode::BAD_REQUEST,
            Self::ChronoParseError(_) | Self::NotImplemented => StatusCode::INTERNAL_SERVER_ERROR,
            Self::NotFound => StatusCode::NOT_FOUND,
-            Self::IcalError(err) => err.status_code(),
        }
    }
 }
--- a/crates/dav/Cargo.toml
+++ b/crates/dav/Cargo.toml
@@ -28,7 +28,7 @@ headers.workspace = true
 strum.workspace = true
 matchit.workspace = true
 matchit-serde.workspace = true
-ical = { workspace = true, optional = true }
+caldata = { workspace = true, optional = true }

 [features]
-ical = ["dep:ical"]
+ical = ["dep:caldata"]
--- a/crates/dav/src/error.rs
+++ b/crates/dav/src/error.rs
@@ -51,19 +51,18 @@ impl Error {
                _ => StatusCode::BAD_REQUEST,
            },
            Self::PropReadOnly => StatusCode::CONFLICT,
-            Self::PreconditionFailed => StatusCode::PRECONDITION_FAILED,
            Self::InternalError | Self::IOError(_) => StatusCode::INTERNAL_SERVER_ERROR,
-            Self::Forbidden => StatusCode::FORBIDDEN,
+            // The correct status code for a failed precondition is not PreconditionFailed but
+            // Forbidden (or Conflict):
+            // https://datatracker.ietf.org/doc/html/rfc4791#section-1.3
+            Self::PreconditionFailed | Self::Forbidden => StatusCode::FORBIDDEN,
        }
    }
 }

 impl axum::response::IntoResponse for Error {
    fn into_response(self) -> axum::response::Response {
-        if matches!(
-            self.status_code(),
-            StatusCode::INTERNAL_SERVER_ERROR | StatusCode::PRECONDITION_FAILED
-        ) {
+        if matches!(self.status_code(), StatusCode::INTERNAL_SERVER_ERROR) {
            error!("{self}");
        }

--- a/crates/dav/src/resource/methods/copy.rs
+++ b/crates/dav/src/resource/methods/copy.rs
@@ -6,12 +6,15 @@ use axum::{
    extract::{MatchedPath, Path, State},
    response::{IntoResponse, Response},
 };
+use axum_extra::TypedHeader;
+use headers::Host;
 use http::{HeaderMap, StatusCode, Uri};
 use matchit_serde::ParamsDeserializer;
 use serde::Deserialize;
 use tracing::instrument;

 #[instrument(skip(path, resource_service,))]
+#[allow(clippy::too_many_arguments)]
 pub async fn axum_route_copy<R: ResourceService>(
    Path(path): Path<R::PathComponents>,
    State(resource_service): State<R>,
@@ -20,6 +23,7 @@ pub async fn axum_route_copy<R: ResourceService>(
    Overwrite(overwrite): Overwrite,
    matched_path: MatchedPath,
    header_map: HeaderMap,
+    TypedHeader(host): TypedHeader<Host>,
 ) -> Result<Response, R::Error> {
    let destination = header_map
        .get("Destination")
@@ -27,7 +31,11 @@ pub async fn axum_route_copy<R: ResourceService>(
        .to_str()
        .map_err(|_| crate::Error::Forbidden)?;
    let destination_uri: Uri = destination.parse().map_err(|_| crate::Error::Forbidden)?;
-    // TODO: Check that host also matches
+    if let Some(authority) = destination_uri.authority()
+        && host != authority.clone().into()
+    {
+        return Err(crate::Error::Forbidden.into());
+    }
    let destination = destination_uri.path();

    let mut router = matchit::Router::new();
--- a/crates/dav/src/resource/methods/mv.rs
+++ b/crates/dav/src/resource/methods/mv.rs
@@ -6,12 +6,15 @@ use axum::{
    extract::{MatchedPath, Path, State},
    response::{IntoResponse, Response},
 };
+use axum_extra::TypedHeader;
+use headers::Host;
 use http::{HeaderMap, StatusCode, Uri};
 use matchit_serde::ParamsDeserializer;
 use serde::Deserialize;
 use tracing::instrument;

 #[instrument(skip(path, resource_service,))]
+#[allow(clippy::too_many_arguments)]
 pub async fn axum_route_move<R: ResourceService>(
    Path(path): Path<R::PathComponents>,
    State(resource_service): State<R>,
@@ -20,6 +23,7 @@ pub async fn axum_route_move<R: ResourceService>(
    Overwrite(overwrite): Overwrite,
    matched_path: MatchedPath,
    header_map: HeaderMap,
+    TypedHeader(host): TypedHeader<Host>,
 ) -> Result<Response, R::Error> {
    let destination = header_map
        .get("Destination")
@@ -27,7 +31,11 @@ pub async fn axum_route_move<R: ResourceService>(
        .to_str()
        .map_err(|_| crate::Error::Forbidden)?;
    let destination_uri: Uri = destination.parse().map_err(|_| crate::Error::Forbidden)?;
-    // TODO: Check that host also matches
+    if let Some(authority) = destination_uri.authority()
+        && host != authority.clone().into()
+    {
+        return Err(crate::Error::Forbidden.into());
+    }
    let destination = destination_uri.path();

    let mut router = matchit::Router::new();
--- a/crates/dav/src/resource/methods/proppatch.rs
+++ b/crates/dav/src/resource/methods/proppatch.rs
@@ -71,6 +71,7 @@ pub async fn axum_route_proppatch<R: ResourceService>(
    route_proppatch(&path, uri.path(), &body, &principal, &resource_service).await
 }

+#[allow(clippy::too_many_lines)]
 pub async fn route_proppatch<R: ResourceService>(
    path_components: &R::PathComponents,
    path: &str,
@@ -116,12 +117,14 @@ pub async fn route_proppatch<R: ResourceService>(
                            }
                        }
                        SetPropertyPropWrapper::Invalid(invalid) => {
-                            let propname = invalid.tag_name();
+                            let Unparsed(propns, propname) = invalid;

                            if let Some(full_propname) = <R::Resource as Resource>::list_props()
                                .into_iter()
                                .find_map(|(ns, tag)| {
-                                    if tag == propname.as_str() {
+                                    if (ns, tag)
+                                        == (propns.as_ref().map(NamespaceOwned::as_ref), &propname)
+                                    {
                                        Some((ns.map(NamespaceOwned::from), tag.to_owned()))
                                    } else {
                                        None
@@ -133,7 +136,7 @@ pub async fn route_proppatch<R: ResourceService>(
                                // - internal properties
                                props_conflict.push(full_propname);
                            } else {
-                                props_not_found.push((None, propname));
+                                props_not_found.push((propns, propname));
                            }
                        }
                    }
--- a/crates/dav/src/xml/propfind.rs
+++ b/crates/dav/src/xml/propfind.rs
@@ -45,7 +45,7 @@ impl<PN: XmlDeserialize> XmlDeserialize for PropElement<PN> {
                // start of a child element
                Event::Start(start) | Event::Empty(start) => {
                    let empty = matches!(event, Event::Empty(_));
-                    let (ns, name) = reader.resolve_element(start.name());
+                    let (ns, name) = reader.resolver().resolve_element(start.name());
                    let ns = match ns {
                        ResolveResult::Bound(ns) => Some(NamespaceOwned::from(ns)),
                        ResolveResult::Unknown(_ns) => todo!("handle error"),
--- a/crates/dav/src/xml/text_match.rs
+++ b/crates/dav/src/xml/text_match.rs
@@ -1,4 +1,4 @@
-use ical::property::ContentLine;
+use caldata::parser::ContentLine;
 use rustical_xml::{ValueDeserialize, XmlDeserialize};
 use std::borrow::Cow;

--- a/crates/ical/Cargo.toml
+++ b/crates/ical/Cargo.toml
@@ -15,7 +15,7 @@ chrono-tz.workspace = true
 thiserror.workspace = true
 derive_more.workspace = true
 rustical_xml.workspace = true
-ical.workspace = true
+caldata.workspace = true
 regex.workspace = true
 rrule.workspace = true
 serde.workspace = true
--- a/crates/ical/src/address_object.rs
+++ b/crates/ical/src/address_object.rs
@@ -1,8 +1,24 @@
 use crate::{CalendarObject, Error};
-use ical::generator::Emitter;
-use ical::parser::vcard::{self, component::VcardContact};
+use caldata::{
+    VcardParser,
+    component::{
+        CalendarInnerDataBuilder, ComponentMut, IcalAlarmBuilder, IcalCalendarObjectBuilder,
+        IcalEventBuilder, VcardContact,
+    },
+    generator::Emitter,
+    parser::{ContentLine, ParserOptions},
+    property::{
+        Calscale, IcalCALSCALEProperty, IcalDTENDProperty, IcalDTSTAMPProperty,
+        IcalDTSTARTProperty, IcalPRODIDProperty, IcalRRULEProperty, IcalSUMMARYProperty,
+        IcalUIDProperty, IcalVERSIONProperty, IcalVersion, VcardANNIVERSARYProperty,
+        VcardBDAYProperty, VcardFNProperty,
+    },
+    types::{CalDate, PartialDate, Timezone},
+};
+use chrono::{NaiveDate, Utc};
 use sha2::{Digest, Sha256};
-use std::{collections::HashMap, io::BufReader};
+use std::collections::BTreeMap;
+use std::str::FromStr;

 #[derive(Debug, Clone)]
 pub struct AddressObject {
@@ -19,7 +35,7 @@ impl From<VcardContact> for AddressObject {

 impl AddressObject {
    pub fn from_vcf(vcf: String) -> Result<Self, Error> {
-        let parser = vcard::VcardParser::new(BufReader::new(vcf.as_bytes()));
+        let parser = VcardParser::from_slice(vcf.as_bytes());
        let vcard = parser.expect_one()?;
        Ok(Self { vcf, vcard })
    }
@@ -36,24 +52,115 @@ impl AddressObject {
        &self.vcf
    }

+    fn get_significant_date_object(
+        &self,
+        date: &PartialDate,
+        summary_prefix: &str,
+        suffix: &str,
+    ) -> Result<Option<CalendarObject>, Error> {
+        let Some(uid) = self.vcard.get_uid() else {
+            return Ok(None);
+        };
+        let uid = format!("{uid}{suffix}");
+        let year = date.get_year();
+        let year_suffix = year.map(|year| format!(" {year}")).unwrap_or_default();
+        let Some(month) = date.get_month() else {
+            return Ok(None);
+        };
+        let Some(day) = date.get_day() else {
+            return Ok(None);
+        };
+        let Some(dtstart) = NaiveDate::from_ymd_opt(year.unwrap_or(1900), month, day) else {
+            return Ok(None);
+        };
+        let start_date = CalDate(dtstart, Timezone::Local);
+        let Some(end_date) = start_date.succ_opt() else {
+            // start_date is MAX_DATE, this should never happen but FAPP also not raise an error
+            return Ok(None);
+        };
+        let Some(VcardFNProperty(fullname, _)) = self.vcard.full_name.first() else {
+            return Ok(None);
+        };
+        let summary = format!("{summary_prefix} {fullname}{year_suffix}");
+
+        let event = IcalEventBuilder {
+            properties: vec![
+                IcalDTSTAMPProperty(Utc::now().into(), vec![].into()).into(),
+                IcalDTSTARTProperty(start_date.into(), vec![].into()).into(),
+                IcalDTENDProperty(end_date.into(), vec![].into()).into(),
+                IcalUIDProperty(uid, vec![].into()).into(),
+                IcalRRULEProperty(
+                    rrule::RRule::from_str("FREQ=YEARLY").unwrap(),
+                    vec![].into(),
+                )
+                .into(),
+                IcalSUMMARYProperty(summary.clone(), vec![].into()).into(),
+                ContentLine {
+                    name: "TRANSP".to_owned(),
+                    value: Some("TRANSPARENT".to_owned()),
+                    ..Default::default()
+                },
+            ],
+            alarms: vec![IcalAlarmBuilder {
+                properties: vec![
+                    ContentLine {
+                        name: "TRIGGER".to_owned(),
+                        value: Some("-PT0M".to_owned()),
+                        params: vec![("VALUE".to_owned(), vec!["DURATION".to_owned()])].into(),
+                    },
+                    ContentLine {
+                        name: "ACTION".to_owned(),
+                        value: Some("DISPLAY".to_owned()),
+                        ..Default::default()
+                    },
+                    ContentLine {
+                        name: "DESCRIPTION".to_owned(),
+                        value: Some(summary),
+                        ..Default::default()
+                    },
+                ],
+            }],
+        };
+
+        Ok(Some(
+            IcalCalendarObjectBuilder {
+                properties: vec![
+                    IcalVERSIONProperty(IcalVersion::Version2_0, vec![].into()).into(),
+                    IcalCALSCALEProperty(Calscale::Gregorian, vec![].into()).into(),
+                    IcalPRODIDProperty(
+                        "-//github.com/lennart-k/rustical birthday calendar//EN".to_owned(),
+                        vec![].into(),
+                    )
+                    .into(),
+                ],
+                inner: Some(CalendarInnerDataBuilder::Event(vec![event])),
+                vtimezones: BTreeMap::default(),
+            }
+            .build(&ParserOptions::default(), None)?
+            .into(),
+        ))
+    }
+
    pub fn get_anniversary_object(&self) -> Result<Option<CalendarObject>, Error> {
-        todo!();
+        let Some(VcardANNIVERSARYProperty(anniversary, _)) = &self.vcard.anniversary else {
+            return Ok(None);
+        };
+        let Some(date) = &anniversary.date else {
+            return Ok(None);
+        };
+
+        self.get_significant_date_object(date, "💍", "-anniversary")
    }

    pub fn get_birthday_object(&self) -> Result<Option<CalendarObject>, Error> {
-        todo!();
-    }
+        let Some(VcardBDAYProperty(bday, _)) = &self.vcard.birthday else {
+            return Ok(None);
+        };
+        let Some(date) = &bday.date else {
+            return Ok(None);
+        };

-    /// Get significant dates associated with this address object
-    pub fn get_significant_dates(&self) -> Result<HashMap<&'static str, CalendarObject>, Error> {
-        let mut out = HashMap::new();
-        if let Some(birthday) = self.get_birthday_object()? {
-            out.insert("birthday", birthday);
-        }
-        if let Some(anniversary) = self.get_anniversary_object()? {
-            out.insert("anniversary", anniversary);
-        }
-        Ok(out)
+        self.get_significant_date_object(date, "🎂", "-birthday")
    }

    #[must_use]
--- a/crates/ical/src/calendar_object.rs
+++ b/crates/ical/src/calendar_object.rs
@@ -1,9 +1,13 @@
+use std::sync::OnceLock;
+
 use crate::Error;
+use caldata::{
+    IcalObjectParser,
+    component::{CalendarInnerData, IcalCalendarObject},
+    generator::Emitter,
+    parser::ParserOptions,
+};
 use derive_more::Display;
-use ical::component::CalendarInnerData;
-use ical::component::IcalCalendarObject;
-use ical::generator::Emitter;
-use ical::parser::ComponentParser;
 use serde::Deserialize;
 use serde::Serialize;
 use sha2::{Digest, Sha256};
@@ -64,15 +68,35 @@ impl rustical_xml::ValueDeserialize for CalendarObjectType {
 #[derive(Debug, Clone)]
 pub struct CalendarObject {
    inner: IcalCalendarObject,
-    ics: String,
+    ics: OnceLock<String>,
 }

 impl CalendarObject {
-    pub fn from_ics(ics: String) -> Result<Self, Error> {
-        let parser: ComponentParser<_, IcalCalendarObject> = ComponentParser::new(ics.as_bytes());
+    // This function parses iCalendar data but doesn't cache it
+    // This is meant for iCalendar data coming from outside that might need to be normalised.
+    // For example if timezones are omitted this can be fixed by this function.
+    pub fn import(ics: &str, options: Option<ParserOptions>) -> Result<Self, Error> {
+        let parser =
+            IcalObjectParser::from_slice(ics.as_bytes()).with_options(options.unwrap_or_default());
        let inner = parser.expect_one()?;

-        Ok(Self { inner, ics })
+        Ok(Self {
+            inner,
+            ics: OnceLock::new(),
+        })
+    }
+
+    // This function parses iCalendar data and then caches the parsed iCalendar data.
+    // This function is only meant for loading data from a data store where we know the iCalendar
+    // is already in the desired form.
+    pub fn from_ics(ics: String) -> Result<Self, Error> {
+        let parser = IcalObjectParser::from_slice(ics.as_bytes());
+        let inner = parser.expect_one()?;
+
+        Ok(Self {
+            inner,
+            ics: ics.into(),
+        })
    }

    #[must_use]
@@ -95,7 +119,7 @@ impl CalendarObject {

    #[must_use]
    pub fn get_ics(&self) -> &str {
-        &self.ics
+        self.ics.get_or_init(|| self.inner.generate())
    }

    #[must_use]
@@ -113,7 +137,7 @@ impl From<CalendarObject> for IcalCalendarObject {
 impl From<IcalCalendarObject> for CalendarObject {
    fn from(value: IcalCalendarObject) -> Self {
        Self {
-            ics: value.generate(),
+            ics: value.generate().into(),
            inner: value,
        }
    }
--- a/crates/ical/src/error.rs
+++ b/crates/ical/src/error.rs
@@ -1,34 +0,0 @@
-use axum::{http::StatusCode, response::IntoResponse};
-
-#[derive(Debug, thiserror::Error, PartialEq, Eq)]
-pub enum Error {
-    #[error("Invalid ics/vcf input: {0}")]
-    InvalidData(String),
-
-    #[error("Missing calendar")]
-    MissingCalendar,
-
-    #[error("Missing contact")]
-    MissingContact,
-
-    #[error(transparent)]
-    ParserError(#[from] ical::parser::ParserError),
-}
-
-impl Error {
-    #[must_use]
-    pub const fn status_code(&self) -> StatusCode {
-        match self {
-            Self::InvalidData(_) | Self::MissingCalendar | Self::MissingContact => {
-                StatusCode::BAD_REQUEST
-            }
-            Self::ParserError(_) => StatusCode::INTERNAL_SERVER_ERROR,
-        }
-    }
-}
-
-impl IntoResponse for Error {
-    fn into_response(self) -> axum::response::Response {
-        (self.status_code(), self.to_string()).into_response()
-    }
-}
--- a/crates/ical/src/lib.rs
+++ b/crates/ical/src/lib.rs
@@ -1,13 +1,13 @@
 #![warn(clippy::all, clippy::pedantic, clippy::nursery)]
 #![allow(clippy::missing_errors_doc, clippy::missing_panics_doc)]
 mod timestamp;
+use caldata::parser::ParserError;
 pub use timestamp::*;

 mod calendar_object;
 pub use calendar_object::*;

-mod error;
-pub use error::Error;
-
 mod address_object;
 pub use address_object::AddressObject;
+
+pub type Error = ParserError;
--- a/crates/store/Cargo.toml
+++ b/crates/store/Cargo.toml
@@ -13,7 +13,7 @@ anyhow.workspace = true
 async-trait.workspace = true
 serde.workspace = true
 sha2.workspace = true
-ical.workspace = true
+caldata.workspace = true
 chrono.workspace = true
 regex.workspace = true
 thiserror.workspace = true
--- a/crates/store/src/error.rs
+++ b/crates/store/src/error.rs
@@ -26,7 +26,7 @@ pub enum Error {
    Other(#[from] anyhow::Error),

    #[error(transparent)]
-    IcalError(#[from] rustical_ical::Error),
+    IcalError(#[from] caldata::parser::ParserError),
 }

 impl Error {
@@ -36,7 +36,7 @@ impl Error {
            Self::NotFound => StatusCode::NOT_FOUND,
            Self::AlreadyExists => StatusCode::CONFLICT,
            Self::ReadOnly => StatusCode::FORBIDDEN,
-            Self::IcalError(err) => err.status_code(),
+            Self::IcalError(_err) => StatusCode::INTERNAL_SERVER_ERROR,
            Self::InvalidPrincipalType(_) => StatusCode::BAD_REQUEST,
            _ => StatusCode::INTERNAL_SERVER_ERROR,
        }
@@ -52,9 +52,7 @@ impl IntoResponse for Error {
    fn into_response(self) -> axum::response::Response {
        if matches!(
            self.status_code(),
-            StatusCode::INTERNAL_SERVER_ERROR
-                | StatusCode::PRECONDITION_FAILED
-                | StatusCode::CONFLICT
+            StatusCode::INTERNAL_SERVER_ERROR | StatusCode::CONFLICT
        ) {
            error!("{self}");
        }
--- a/crates/store_sqlite/Cargo.toml
+++ b/crates/store_sqlite/Cargo.toml
@@ -20,7 +20,7 @@ rstest.workspace = true
 criterion.workspace = true

 [dependencies]
-ical.workspace = true
+caldata.workspace = true
 tokio.workspace = true
 rustical_store.workspace = true
 async-trait.workspace = true
@@ -37,3 +37,4 @@ pbkdf2.workspace = true
 rustical_ical.workspace = true
 rstest = { workspace = true, optional = true }
 sha2.workspace = true
+regex.workspace = true
--- a/crates/store_sqlite/src/addressbook_store/birthday_calendar.rs
+++ b/crates/store_sqlite/src/addressbook_store/birthday_calendar.rs
@@ -279,7 +279,7 @@ impl CalendarStore for SqliteAddressbookStore {
            .strip_prefix(BIRTHDAYS_PREFIX)
            .ok_or(Error::NotFound)?
            .to_string();
-        Self::_update_birthday_calendar(&self.db, &principal, &calendar).await
+        Self::_update_birthday_calendar(&self.db, principal, &calendar).await
    }

    #[instrument]
@@ -330,14 +330,29 @@ impl CalendarStore for SqliteAddressbookStore {
            .ok_or(Error::NotFound)?;
        let (objects, deleted_objects, new_synctoken) =
            AddressbookStore::sync_changes(self, principal, cal_id, synctoken).await?;
-        todo!();
-        // let objects: Result<Vec<Option<CalendarObject>>, rustical_ical::Error> = objects
-        //     .iter()
-        //     .map(AddressObject::get_birthday_object)
-        //     .collect();
-        // let objects = objects?.into_iter().flatten().collect();
-        //
-        // Ok((objects, deleted_objects, new_synctoken))
+
+        let mut out_objects = vec![];
+
+        for (object_id, object) in objects {
+            if let Some(birthday) = object.get_birthday_object()? {
+                out_objects.push((format!("{object_id}-birthday"), birthday));
+            }
+            if let Some(anniversary) = object.get_anniversary_object()? {
+                out_objects.push((format!("{object_id}-anniversary"), anniversary));
+            }
+        }
+
+        let deleted_objects = deleted_objects
+            .into_iter()
+            .flat_map(|object_id| {
+                [
+                    format!("{object_id}-birthday"),
+                    format!("{object_id}-anniversary"),
+                ]
+            })
+            .collect();
+
+        Ok((out_objects, deleted_objects, new_synctoken))
    }

    #[instrument]
@@ -358,22 +373,19 @@ impl CalendarStore for SqliteAddressbookStore {
        principal: &str,
        cal_id: &str,
    ) -> Result<Vec<(String, CalendarObject)>, Error> {
-        todo!()
-        // let cal_id = cal_id
-        //     .strip_prefix(BIRTHDAYS_PREFIX)
-        //     .ok_or(Error::NotFound)?;
-        // let objects: Result<Vec<HashMap<&'static str, CalendarObject>>, rustical_ical::Error> =
-        //     AddressbookStore::get_objects(self, principal, cal_id)
-        //         .await?
-        //         .iter()
-        //         .map(AddressObject::get_significant_dates)
-        //         .collect();
-        // let objects = objects?
-        //     .into_iter()
-        //     .flat_map(HashMap::into_values)
-        //     .collect();
-        //
-        // Ok(objects)
+        let mut objects = vec![];
+        let cal_id = cal_id
+            .strip_prefix(BIRTHDAYS_PREFIX)
+            .ok_or(Error::NotFound)?;
+        for (object_id, object) in AddressbookStore::get_objects(self, principal, cal_id).await? {
+            if let Some(birthday) = object.get_birthday_object()? {
+                objects.push((format!("{object_id}-birthday"), birthday));
+            }
+            if let Some(anniversary) = object.get_anniversary_object()? {
+                objects.push((format!("{object_id}-anniversary"), anniversary));
+            }
+        }
+        Ok(objects)
    }

    #[instrument]
@@ -388,11 +400,14 @@ impl CalendarStore for SqliteAddressbookStore {
            .strip_prefix(BIRTHDAYS_PREFIX)
            .ok_or(Error::NotFound)?;
        let (addressobject_id, date_type) = object_id.rsplit_once('-').ok_or(Error::NotFound)?;
-        AddressbookStore::get_object(self, principal, cal_id, addressobject_id, show_deleted)
-            .await?
-            .get_significant_dates()?
-            .remove(date_type)
-            .ok_or(Error::NotFound)
+        let obj =
+            AddressbookStore::get_object(self, principal, cal_id, addressobject_id, show_deleted)
+                .await?;
+        match date_type {
+            "birthday" => Ok(obj.get_birthday_object()?.ok_or(Error::NotFound)?),
+            "anniversary" => Ok(obj.get_anniversary_object()?.ok_or(Error::NotFound)?),
+            _ => Err(Error::NotFound),
+        }
    }

    #[instrument]
--- a/crates/store_sqlite/src/addressbook_store/mod.rs
+++ b/crates/store_sqlite/src/addressbook_store/mod.rs
@@ -1,6 +1,7 @@
 use super::ChangeOperation;
 use crate::BEGIN_IMMEDIATE;
 use async_trait::async_trait;
+use caldata::parser::ParserError;
 use derive_more::derive::Constructor;
 use rustical_ical::AddressObject;
 use rustical_store::{
@@ -9,7 +10,7 @@ use rustical_store::{
 };
 use sqlx::{Acquire, Executor, Sqlite, SqlitePool, Transaction};
 use tokio::sync::mpsc::Sender;
-use tracing::{error_span, instrument, warn};
+use tracing::{error, error_span, instrument, warn};

 pub mod birthday_calendar;

@@ -18,6 +19,12 @@ struct AddressObjectRow {
    id: String,
    vcf: String,
 }
+impl From<AddressObjectRow> for (String, Result<AddressObject, ParserError>) {
+    fn from(row: AddressObjectRow) -> Self {
+        let result = AddressObject::from_vcf(row.vcf);
+        (row.id, result)
+    }
+}

 impl TryFrom<AddressObjectRow> for (String, AddressObject) {
    type Error = rustical_store::Error;
@@ -31,6 +38,7 @@ impl TryFrom<AddressObjectRow> for (String, AddressObject) {
 pub struct SqliteAddressbookStore {
    db: SqlitePool,
    sender: Sender<CollectionOperation>,
+    skip_broken: bool,
 }

 impl SqliteAddressbookStore {
@@ -88,6 +96,36 @@ impl SqliteAddressbookStore {
        Ok(())
    }

+    #[allow(clippy::missing_panics_doc)]
+    pub async fn validate_objects(&self, principal: &str) -> Result<(), Error> {
+        let mut success = true;
+        for addressbook in self.get_addressbooks(principal).await? {
+            for (object_id, res) in Self::_get_objects(&self.db, principal, &addressbook.id).await?
+            {
+                if let Err(err) = res {
+                    warn!(
+                        "Invalid address object found at {principal}/{addr_id}/{object_id}.vcf. Error: {err}",
+                        addr_id = addressbook.id
+                    );
+                    success = false;
+                }
+            }
+        }
+        if !success {
+            if self.skip_broken {
+                error!(
+                    "Not all address objects are valid. Since data_store.sqlite.skip_broken=true they will be hidden. You are still advised to manually remove or repair the object. If you need help feel free to open up an issue on GitHub."
+                );
+            } else {
+                error!(
+                    "Not all address objects are valid. Since data_store.sqlite.skip_broken=false this causes a panic. Remove or repair the broken objects manually or set data_store.sqlite.skip_broken=false as a temporary solution to ignore the error. If you need help feel free to open up an issue on GitHub."
+                );
+                panic!();
+            }
+        }
+        Ok(())
+    }
+
    // Logs an operation to an address object
    async fn log_object_operation(
        tx: &mut Transaction<'_, Sqlite>,
@@ -134,7 +172,7 @@ impl SqliteAddressbookStore {
        if let Err(err) = self.sender.try_send(CollectionOperation { topic, data }) {
            error_span!(
                "Error trying to send addressbook update notification:",
-                err = format!("{err:?}"),
+                err = format!("{err}"),
            );
        }
    }
@@ -353,8 +391,8 @@ impl SqliteAddressbookStore {
        executor: E,
        principal: &str,
        addressbook_id: &str,
-    ) -> Result<Vec<(String, AddressObject)>, rustical_store::Error> {
-        sqlx::query_as!(
+    ) -> Result<impl Iterator<Item = (String, Result<AddressObject, ParserError>)>, Error> {
+        Ok(sqlx::query_as!(
            AddressObjectRow,
            "SELECT id, vcf FROM addressobjects WHERE principal = ? AND addressbook_id = ? AND deleted_at IS NULL",
            principal,
@@ -363,8 +401,8 @@ impl SqliteAddressbookStore {
        .fetch_all(executor)
        .await.map_err(crate::Error::from)?
        .into_iter()
-        .map(std::convert::TryInto::try_into)
-        .collect()
+        .map(Into::into)
+        )
    }

    async fn _get_object<'e, E: Executor<'e, Database = Sqlite>>(
@@ -509,7 +547,7 @@ impl AddressbookStore for SqliteAddressbookStore {
    ) -> Result<(), rustical_store::Error> {
        assert_eq!(principal, &addressbook.principal);
        assert_eq!(id, &addressbook.id);
-        Self::_update_addressbook(&self.db, &principal, &id, &addressbook).await
+        Self::_update_addressbook(&self.db, principal, id, &addressbook).await
    }

    #[instrument]
@@ -607,7 +645,16 @@ impl AddressbookStore for SqliteAddressbookStore {
        principal: &str,
        addressbook_id: &str,
    ) -> Result<Vec<(String, AddressObject)>, rustical_store::Error> {
-        Self::_get_objects(&self.db, principal, addressbook_id).await
+        let objects = Self::_get_objects(&self.db, principal, addressbook_id).await?;
+        if self.skip_broken {
+            Ok(objects
+                .filter_map(|(id, res)| Some((id, res.ok()?)))
+                .collect())
+        } else {
+            Ok(objects
+                .map(|(id, res)| res.map(|obj| (id, obj)))
+                .collect::<Result<Vec<_>, _>>()?)
+        }
    }

    #[instrument]
@@ -648,9 +695,9 @@ impl AddressbookStore for SqliteAddressbookStore {

        let sync_token = Self::log_object_operation(
            &mut tx,
-            &principal,
-            &addressbook_id,
-            &object_id,
+            principal,
+            addressbook_id,
+            object_id,
            ChangeOperation::Add,
        )
        .await
--- a/crates/store_sqlite/src/calendar_store.rs
+++ b/crates/store_sqlite/src/calendar_store.rs
@@ -1,9 +1,11 @@
 use super::ChangeOperation;
 use crate::BEGIN_IMMEDIATE;
 use async_trait::async_trait;
+use caldata::parser::ParserError;
+use caldata::types::CalDateTime;
 use chrono::TimeDelta;
 use derive_more::derive::Constructor;
-use ical::types::CalDateTime;
+use regex::Regex;
 use rustical_ical::{CalendarObject, CalendarObjectType};
 use rustical_store::calendar_store::CalendarQuery;
 use rustical_store::synctoken::format_synctoken;
@@ -12,7 +14,7 @@ use rustical_store::{CollectionOperation, CollectionOperationInfo};
 use sqlx::types::chrono::NaiveDateTime;
 use sqlx::{Acquire, Executor, Sqlite, SqlitePool, Transaction};
 use tokio::sync::mpsc::Sender;
-use tracing::{error_span, instrument, warn};
+use tracing::{error, error_span, instrument, warn};

 #[derive(Debug, Clone)]
 struct CalendarObjectRow {
@@ -21,21 +23,37 @@ struct CalendarObjectRow {
    uid: String,
 }

+impl From<CalendarObjectRow> for (String, Result<CalendarObject, ParserError>) {
+    fn from(row: CalendarObjectRow) -> Self {
+        let result = CalendarObject::from_ics(row.ics).inspect(|object| {
+            if object.get_uid() != row.uid {
+                warn!(
+                    "Calendar object {}.ics: UID={} and row uid={} do not match",
+                    row.id,
+                    object.get_uid(),
+                    row.uid
+                );
+            }
+        });
+
+        (row.id, result)
+    }
+}
+
 impl TryFrom<CalendarObjectRow> for (String, CalendarObject) {
    type Error = rustical_store::Error;

-    fn try_from(value: CalendarObjectRow) -> Result<Self, Self::Error> {
-        let object = CalendarObject::from_ics(value.ics)?;
-        if object.get_uid() != value.uid {
-            return Err(rustical_store::Error::IcalError(
-                rustical_ical::Error::InvalidData(format!(
-                    "uid={} and UID={} don't match",
-                    value.uid,
-                    object.get_uid()
-                )),
-            ));
+    fn try_from(row: CalendarObjectRow) -> Result<Self, Self::Error> {
+        let object = CalendarObject::from_ics(row.ics)?;
+        if object.get_uid() != row.uid {
+            warn!(
+                "Calendar object {}.ics: UID={} and row uid={} do not match",
+                row.id,
+                object.get_uid(),
+                row.uid
+            );
        }
-        Ok((value.id, object))
+        Ok((row.id, object))
    }
 }

@@ -92,6 +110,7 @@ impl From<CalendarRow> for Calendar {
 pub struct SqliteCalendarStore {
    db: SqlitePool,
    sender: Sender<CollectionOperation>,
+    skip_broken: bool,
 }

 impl SqliteCalendarStore {
@@ -141,11 +160,117 @@ impl SqliteCalendarStore {
        if let Err(err) = self.sender.try_send(CollectionOperation { topic, data }) {
            error_span!(
                "Error trying to send calendar update notification:",
-                err = format!("{err:?}"),
+                err = format!("{err}"),
            );
        }
    }

+    #[allow(clippy::missing_panics_doc)]
+    pub async fn validate_objects(&self, principal: &str) -> Result<(), Error> {
+        let mut success = true;
+        for calendar in self.get_calendars(principal).await? {
+            for (object_id, res) in Self::_get_objects(&self.db, principal, &calendar.id).await? {
+                if let Err(err) = res {
+                    warn!(
+                        "Invalid calendar object found at {principal}/{cal_id}/{object_id}.ics. Error: {err}",
+                        cal_id = calendar.id
+                    );
+                    success = false;
+                }
+            }
+        }
+        if !success {
+            if self.skip_broken {
+                error!(
+                    "Not all calendar objects are valid. Since data_store.sqlite.skip_broken=true they will be hidden. You are still advised to manually remove or repair the object. If you need help feel free to open up an issue on GitHub."
+                );
+            } else {
+                error!(
+                    "Not all calendar objects are valid. Since data_store.sqlite.skip_broken=false this causes a panic. Remove or repair the broken objects manually or set data_store.sqlite.skip_broken=false as a temporary solution to ignore the error. If you need help feel free to open up an issue on GitHub."
+                );
+                panic!();
+            }
+        }
+        Ok(())
+    }
+
+    /// In the past exports generated objects with invalid VERSION:4.0
+    /// This repair sets them to VERSION:2.0
+    #[allow(clippy::missing_panics_doc)]
+    pub async fn repair_invalid_version_4_0(&self) -> Result<(), Error> {
+        struct Row {
+            principal: String,
+            cal_id: String,
+            id: String,
+            ics: String,
+        }
+
+        let mut tx = self
+            .db
+            .begin_with(BEGIN_IMMEDIATE)
+            .await
+            .map_err(crate::Error::from)?;
+
+        #[allow(clippy::missing_panics_doc)]
+        let version_pattern = Regex::new(r"(?mi)^VERSION:4.0").unwrap();
+
+        let repairs: Vec<Row> = sqlx::query_as!(
+            Row,
+            r#"SELECT principal, cal_id, id, ics FROM calendarobjects WHERE ics LIKE '%VERSION:4.0%';"#
+        )
+        .fetch_all(&mut *tx)
+        .await
+        .map_err(crate::Error::from)?
+            .into_iter()
+            .filter_map(|mut row| {
+                version_pattern.find(&row.ics)?;
+                let new_ics = version_pattern.replace(&row.ics, "VERSION:2.0");
+                // Safeguard that we really only changed the version
+                assert_eq!(row.ics.len(), new_ics.len());
+                row.ics = new_ics.to_string();
+                Some(row)
+            })
+            .collect();
+
+        if repairs.is_empty() {
+            return Ok(());
+        }
+        warn!(
+            "Found {} calendar objects with invalid VERSION:4.0. Repairing by setting to VERSION:2.0",
+            repairs.len()
+        );
+
+        for repair in &repairs {
+            // calendarobjectchangelog is used by sync-collection to fetch changes
+            // By deleting entries we will later regenerate new entries such that clients will notice
+            // the objects have changed
+            warn!(
+                "Repairing VERSION for {}/{}/{}.ics",
+                repair.principal, repair.cal_id, repair.id
+            );
+            sqlx::query!(
+                "DELETE FROM calendarobjectchangelog WHERE (principal, cal_id, object_id) = (?, ?, ?);",
+                repair.principal, repair.cal_id, repair.id
+            ).execute(&mut *tx).await
+            .map_err(crate::Error::from)?;
+
+            sqlx::query!(
+                "UPDATE calendarobjects SET ics = ? WHERE (principal, cal_id, id) = (?, ?, ?);",
+                repair.ics,
+                repair.principal,
+                repair.cal_id,
+                repair.id
+            )
+            .execute(&mut *tx)
+            .await
+            .map_err(crate::Error::from)?;
+        }
+
+        tx.commit().await.map_err(crate::Error::from)?;
+
+        Ok(())
+    }
+
    // Commit "orphaned" objects to the changelog table
    pub async fn repair_orphans(&self) -> Result<(), Error> {
        struct Row {
@@ -379,8 +504,8 @@ impl SqliteCalendarStore {
        executor: E,
        principal: &str,
        cal_id: &str,
-    ) -> Result<Vec<(String, CalendarObject)>, Error> {
-        sqlx::query_as!(
+    ) -> Result<impl Iterator<Item = (String, Result<CalendarObject, ParserError>)>, Error> {
+        Ok(sqlx::query_as!(
            CalendarObjectRow,
            "SELECT id, uid, ics FROM calendarobjects WHERE principal = ? AND cal_id = ? AND deleted_at IS NULL",
            principal,
@@ -389,8 +514,8 @@ impl SqliteCalendarStore {
        .fetch_all(executor)
        .await.map_err(crate::Error::from)?
        .into_iter()
-        .map(std::convert::TryInto::try_into)
-        .collect()
+        .map(Into::into)
+        )
    }

    async fn _calendar_query<'e, E: Executor<'e, Database = Sqlite>>(
@@ -398,14 +523,14 @@ impl SqliteCalendarStore {
        principal: &str,
        cal_id: &str,
        query: CalendarQuery,
-    ) -> Result<Vec<(String, CalendarObject)>, Error> {
+    ) -> Result<impl Iterator<Item = (String, Result<CalendarObject, ParserError>)>, Error> {
        // We extend our query interval by one day in each direction since we really don't want to
        // miss any objects because of timezone differences
        // I've previously tried NaiveDate::MIN,MAX, but it seems like sqlite cannot handle these
        let start = query.time_start.map(|start| start - TimeDelta::days(1));
        let end = query.time_end.map(|end| end + TimeDelta::days(1));

-        sqlx::query_as!(
+        Ok(sqlx::query_as!(
            CalendarObjectRow,
            r"SELECT id, uid, ics FROM calendarobjects
                WHERE principal = ? AND cal_id = ? AND deleted_at IS NULL
@@ -423,8 +548,7 @@ impl SqliteCalendarStore {
        .await
        .map_err(crate::Error::from)?
        .into_iter()
-        .map(std::convert::TryInto::try_into)
-        .collect()
+        .map(Into::into))
    }

    async fn _get_object<'e, E: Executor<'e, Database = Sqlite>>(
@@ -564,6 +688,7 @@ impl SqliteCalendarStore {
        principal: &str,
        cal_id: &str,
        synctoken: i64,
+        skip_broken: bool,
    ) -> Result<(Vec<(String, CalendarObject)>, Vec<String>, i64), Error> {
        struct Row {
            object_id: String,
@@ -593,6 +718,8 @@ impl SqliteCalendarStore {
            match Self::_get_object(&mut *conn, principal, cal_id, &object_id, false).await {
                Ok(object) => objects.push((object_id, object)),
                Err(rustical_store::Error::NotFound) => deleted_objects.push(object_id),
+                // Skip broken object
+                Err(rustical_store::Error::IcalError(_)) if skip_broken => (),
                Err(err) => return Err(err),
            }
        }
@@ -743,7 +870,16 @@ impl CalendarStore for SqliteCalendarStore {
        cal_id: &str,
        query: CalendarQuery,
    ) -> Result<Vec<(String, CalendarObject)>, Error> {
-        Self::_calendar_query(&self.db, principal, cal_id, query).await
+        let objects = Self::_calendar_query(&self.db, principal, cal_id, query).await?;
+        if self.skip_broken {
+            Ok(objects
+                .filter_map(|(id, res)| Some((id, res.ok()?)))
+                .collect())
+        } else {
+            Ok(objects
+                .map(|(id, res)| res.map(|obj| (id, obj)))
+                .collect::<Result<Vec<_>, _>>()?)
+        }
    }

    async fn calendar_metadata(
@@ -774,7 +910,16 @@ impl CalendarStore for SqliteCalendarStore {
        principal: &str,
        cal_id: &str,
    ) -> Result<Vec<(String, CalendarObject)>, Error> {
-        Self::_get_objects(&self.db, principal, cal_id).await
+        let objects = Self::_get_objects(&self.db, principal, cal_id).await?;
+        if self.skip_broken {
+            Ok(objects
+                .filter_map(|(id, res)| Some((id, res.ok()?)))
+                .collect())
+        } else {
+            Ok(objects
+                .map(|(id, res)| res.map(|obj| (id, obj)))
+                .collect::<Result<Vec<_>, _>>()?)
+        }
    }

    #[instrument]
@@ -802,7 +947,7 @@ impl CalendarStore for SqliteCalendarStore {
            .await
            .map_err(crate::Error::from)?;

-        let calendar = Self::_get_calendar(&mut *tx, &principal, &cal_id, true).await?;
+        let calendar = Self::_get_calendar(&mut *tx, principal, cal_id, true).await?;
        if calendar.subscription_url.is_some() {
            // We cannot commit an object to a subscription calendar
            return Err(Error::ReadOnly);
@@ -813,17 +958,14 @@ impl CalendarStore for SqliteCalendarStore {
            sync_token = Some(
                Self::log_object_operation(
                    &mut tx,
-                    &principal,
-                    &cal_id,
+                    principal,
+                    cal_id,
                    &object_id,
                    ChangeOperation::Add,
                )
                .await?,
            );
-            Self::_put_object(
-                &mut *tx, &principal, &cal_id, &object_id, &object, overwrite,
-            )
-            .await?;
+            Self::_put_object(&mut *tx, principal, cal_id, &object_id, &object, overwrite).await?;
        }

        tx.commit().await.map_err(crate::Error::from)?;
@@ -831,9 +973,7 @@ impl CalendarStore for SqliteCalendarStore {
        if let Some(sync_token) = sync_token {
            self.send_push_notification(
                CollectionOperationInfo::Content { sync_token },
-                self.get_calendar(&principal, &cal_id, true)
-                    .await?
-                    .push_topic,
+                self.get_calendar(principal, cal_id, true).await?.push_topic,
            );
        }
        Ok(())
@@ -902,7 +1042,7 @@ impl CalendarStore for SqliteCalendarStore {
        cal_id: &str,
        synctoken: i64,
    ) -> Result<(Vec<(String, CalendarObject)>, Vec<String>, i64), Error> {
-        Self::_sync_changes(&self.db, principal, cal_id, synctoken).await
+        Self::_sync_changes(&self.db, principal, cal_id, synctoken, self.skip_broken).await
    }

    fn is_read_only(&self, _cal_id: &str) -> bool {
--- a/crates/store_sqlite/src/error.rs
+++ b/crates/store_sqlite/src/error.rs
@@ -18,7 +18,7 @@ impl From<sqlx::Error> for Error {
            sqlx::Error::RowNotFound => Self::StoreError(rustical_store::Error::NotFound),
            sqlx::Error::Database(err) => {
                if err.is_unique_violation() {
-                    warn!("{err:?}");
+                    warn!("{err}");
                    Self::StoreError(rustical_store::Error::AlreadyExists)
                } else {
                    Self::SqlxError(sqlx::Error::Database(err))
--- a/crates/store_sqlite/src/tests/mod.rs
+++ b/crates/store_sqlite/src/tests/mod.rs
@@ -52,8 +52,8 @@ pub async fn test_store_context() -> TestStoreContext {
    let db = get_test_db().await;
    TestStoreContext {
        db: db.clone(),
-        addr_store: SqliteAddressbookStore::new(db.clone(), send_addr),
-        cal_store: SqliteCalendarStore::new(db.clone(), send_cal),
+        addr_store: SqliteAddressbookStore::new(db.clone(), send_addr, false),
+        cal_store: SqliteCalendarStore::new(db.clone(), send_cal, false),
        principal_store: SqlitePrincipalStore::new(db.clone()),
        sub_store: SqliteStore::new(db),
    }
--- a/crates/xml/derive/src/xml_struct/mod.rs
+++ b/crates/xml/derive/src/xml_struct/mod.rs
@@ -136,7 +136,7 @@ impl NamedStruct {
                        #(#builder_field_inits),*
                    };

-                    let (ns, name) = reader.resolve_element(start.name());
+                    let (ns, name) = reader.resolver().resolve_element(start.name());
                    #(#tagname_field_branches);*
                    #(#namespace_field_branches);*

@@ -161,7 +161,7 @@ impl NamedStruct {
                                // start of a child element
                                Event::Start(start) | Event::Empty(start) => {
                                    let empty = matches!(event, Event::Empty(_));
-                                    let (ns, name) = reader.resolve_element(start.name());
+                                    let (ns, name) = reader.resolver().resolve_element(start.name());
                                    match (ns, name.as_ref()) {
                                        #(#named_field_branches),*
                                        #(#untagged_field_branches),*
--- a/crates/xml/src/de.rs
+++ b/crates/xml/src/de.rs
@@ -42,7 +42,7 @@ impl<T: XmlRootTag + XmlDeserialize> XmlDocument for T {
            match event {
                Event::Decl(_) | Event::Comment(_) => { /*  ignore this */ }
                Event::Start(start) | Event::Empty(start) => {
-                    let (ns, name) = reader.resolve_element(start.name());
+                    let (ns, name) = reader.resolver().resolve_element(start.name());
                    let matches = match (Self::root_ns(), &ns, name) {
                        // Wrong tag
                        (_, _, name) if name.as_ref() != Self::root_tag().as_bytes() => false,
--- a/crates/xml/src/namespace.rs
+++ b/crates/xml/src/namespace.rs
@@ -1,6 +1,6 @@
 use quick_xml::name::Namespace;

-#[derive(Debug, Clone, Default, PartialEq, Eq)]
+#[derive(Debug, Clone, Default, PartialEq, Eq, Hash)]
 pub struct NamespaceOwned(pub Vec<u8>);

 impl<'a> From<Namespace<'a>> for NamespaceOwned {
--- a/crates/xml/src/unparsed.rs
+++ b/crates/xml/src/unparsed.rs
@@ -1,18 +1,21 @@
 use std::io::BufRead;

-use quick_xml::events::BytesStart;
+use quick_xml::{events::BytesStart, name::ResolveResult};

-use crate::{XmlDeserialize, XmlError};
+use crate::{NamespaceOwned, XmlDeserialize, XmlError};

-// TODO: actually implement
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
-pub struct Unparsed(String);
+pub struct Unparsed(pub Option<NamespaceOwned>, pub String);

 impl Unparsed {
    #[must_use]
-    pub fn tag_name(&self) -> String {
-        // TODO: respect namespace?
-        self.0.clone()
+    pub const fn ns(&self) -> Option<&NamespaceOwned> {
+        self.0.as_ref()
+    }
+
+    #[must_use]
+    pub const fn tag_name(&self) -> &str {
+        self.1.as_str()
    }
 }

@@ -27,7 +30,12 @@ impl XmlDeserialize for Unparsed {
            let mut buf = vec![];
            reader.read_to_end_into(start.name(), &mut buf)?;
        }
-        let tag_name = String::from_utf8_lossy(start.local_name().as_ref()).to_string();
-        Ok(Self(tag_name))
+        let (ns, tag_name) = reader.resolver().resolve_element(start.name());
+        let ns: Option<NamespaceOwned> = match ns {
+            ResolveResult::Bound(ns) => Some(ns.into()),
+            ResolveResult::Unbound | ResolveResult::Unknown(_) => None,
+        };
+        let tag_name = String::from_utf8_lossy(tag_name.as_ref()).to_string();
+        Ok(Self(ns, tag_name))
    }
 }
--- a/src/app.rs
+++ b/src/app.rs
@@ -9,7 +9,7 @@ use axum_extra::TypedHeader;
 use headers::{HeaderMapExt, UserAgent};
 use http::header::CONNECTION;
 use http::{HeaderValue, StatusCode};
-use rustical_caldav::caldav_router;
+use rustical_caldav::{CalDavConfig, caldav_router};
 use rustical_carddav::carddav_router;
 use rustical_frontend::nextcloud_login::nextcloud_login_router;
 use rustical_frontend::{FrontendConfig, frontend_router};
@@ -45,6 +45,7 @@ pub fn make_app<
    auth_provider: Arc<impl AuthenticationProvider>,
    frontend_config: FrontendConfig,
    oidc_config: Option<OidcConfig>,
+    caldav_config: CalDavConfig,
    nextcloud_login_config: &NextcloudLoginConfig,
    dav_push_enabled: bool,
    session_cookie_samesite_strict: bool,
@@ -54,6 +55,8 @@ pub fn make_app<
    let combined_cal_store =
        Arc::new(CombinedCalendarStore::new(cal_store).with_store(birthday_store));

+    let caldav_config = Arc::new(caldav_config);
+
    let mut router = Router::new()
        // endpoint to be used by healthcheck to see if rustical is online
        .route("/ping", axum::routing::get(async || "Pong!"))
@@ -63,6 +66,7 @@ pub fn make_app<
            combined_cal_store.clone(),
            subscription_store.clone(),
            false,
+            caldav_config.clone(),
        ))
        .merge(caldav_router(
            "/caldav-compat",
@@ -70,6 +74,7 @@ pub fn make_app<
            combined_cal_store.clone(),
            subscription_store.clone(),
            true,
+            caldav_config,
        ))
        .route(
            "/.well-known/caldav",
--- a/src/commands/mod.rs
+++ b/src/commands/mod.rs
@@ -3,6 +3,7 @@ use crate::config::{
    SqliteDataStoreConfig, TracingConfig,
 };
 use clap::Parser;
+use rustical_caldav::CalDavConfig;
 use rustical_frontend::FrontendConfig;

 pub mod health;
@@ -15,8 +16,11 @@ pub struct GenConfigArgs {}
 pub fn cmd_gen_config(_args: GenConfigArgs) -> anyhow::Result<()> {
    let config = Config {
        http: HttpConfig::default(),
+        caldav: CalDavConfig::default(),
        data_store: DataStoreConfig::Sqlite(SqliteDataStoreConfig {
            db_url: "/var/lib/rustical/db.sqlite3".to_owned(),
+            run_repairs: true,
+            skip_broken: true,
        }),
        tracing: TracingConfig::default(),
        frontend: FrontendConfig {
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,3 +1,4 @@
+use rustical_caldav::CalDavConfig;
 use rustical_frontend::FrontendConfig;
 use rustical_oidc::OidcConfig;
 use serde::{Deserialize, Serialize};
@@ -26,6 +27,10 @@ impl Default for HttpConfig {
 #[serde(deny_unknown_fields)]
 pub struct SqliteDataStoreConfig {
    pub db_url: String,
+    #[serde(default = "default_true")]
+    pub run_repairs: bool,
+    #[serde(default = "default_true")]
+    pub skip_broken: bool,
 }

 #[derive(Debug, Deserialize, Serialize)]
@@ -93,4 +98,6 @@ pub struct Config {
    pub dav_push: DavPushConfig,
    #[serde(default)]
    pub nextcloud_login: NextcloudLoginConfig,
+    #[serde(default)]
+    pub caldav: CalDavConfig,
 }
--- a/src/integration_tests/caldav/calendar.rs
+++ b/src/integration_tests/caldav/calendar.rs
@@ -8,7 +8,7 @@ use rustical_store::{CalendarMetadata, CalendarStore};
 use rustical_store_sqlite::tests::{TestStoreContext, test_store_context};
 use tower::ServiceExt;

-fn mkcalendar_template(
+pub fn mkcalendar_template(
    CalendarMetadata {
        displayname,
        order: _order,
--- a/src/integration_tests/caldav/calendar_put.rs
+++ b/src/integration_tests/caldav/calendar_put.rs
@@ -0,0 +1,77 @@
+use axum::body::Body;
+use headers::{Authorization, HeaderMapExt};
+use http::{Request, StatusCode};
+use rstest::rstest;
+use rustical_store::CalendarMetadata;
+use rustical_store_sqlite::tests::{TestStoreContext, test_store_context};
+use tower::ServiceExt;
+
+use crate::integration_tests::{
+    ResponseExtractString, caldav::calendar::mkcalendar_template, get_app,
+};
+
+#[rstest]
+#[tokio::test]
+async fn test_put_invalid(
+    #[from(test_store_context)]
+    #[future]
+    context: TestStoreContext,
+) {
+    let context = context.await;
+    let app = get_app(context.clone());
+
+    let calendar_meta = CalendarMetadata {
+        displayname: Some("Calendar".to_string()),
+        description: Some("Description".to_string()),
+        color: Some("#00FF00".to_string()),
+        order: 0,
+    };
+    let (principal, cal_id) = ("user", "calendar");
+    let url = format!("/caldav/principal/{principal}/{cal_id}");
+
+    let mut request = Request::builder()
+        .method("MKCALENDAR")
+        .uri(&url)
+        .body(Body::from(mkcalendar_template(&calendar_meta)))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::CREATED);
+
+    // Invalid calendar data
+    let ical = r"BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VEVENT
+UID:20010712T182145Z-123401@example.com
+DTSTAMP:20060712T182145Z
+DTSTART:20060714T170000Z
+RRULE:UNTIL=123
+DTEND:20060715T040000Z
+SUMMARY:Bastille Day Party
+END:VEVENT
+END:VCALENDAR";
+
+    let mut request = Request::builder()
+        .method("PUT")
+        .uri(format!("{url}/qwue23489.ics"))
+        .header("If-None-Match", "*")
+        .header("Content-Type", "text/calendar")
+        .body(Body::from(ical))
+        .unwrap();
+    request
+        .headers_mut()
+        .typed_insert(Authorization::basic("user", "pass"));
+
+    let response = app.clone().oneshot(request).await.unwrap();
+    assert_eq!(response.status(), StatusCode::FORBIDDEN);
+    let body = response.extract_string().await;
+    insta::assert_snapshot!(body, @r#"
+    <?xml version="1.0" encoding="utf-8"?>
+    <error xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:CARD="urn:ietf:params:xml:ns:carddav" xmlns:CS="http://calendarserver.org/ns/" xmlns:PUSH="https://bitfire.at/webdav-push">
+        <CAL:valid-calendar-data/>
+    </error>
+    "#);
+}
--- a/src/integration_tests/caldav/calendar_report.rs
+++ b/src/integration_tests/caldav/calendar_report.rs
@@ -87,70 +87,79 @@ const REPORT_7_8_3: &str = r#"
   </C:calendar-query>
 "#;

-const OUTPUT_7_8_3: &str = r#"
-     <D:response>
-       <D:href>http://cal.example.com/bernard/work/abcd2.ics</D:href>
-       <D:propstat>
-         <D:prop>
-           <D:getetag>"fffff-abcd2"</D:getetag>
-           <C:calendar-data>BEGIN:VCALENDAR
-   VERSION:2.0
-   PRODID:-//Example Corp.//CalDAV Client//EN
-   BEGIN:VEVENT
-   DTSTAMP:20060206T001121Z
-   DTSTART:20060103T170000
-   DURATION:PT1H
-   RECURRENCE-ID:20060103T170000
-   SUMMARY:Event #2
-   UID:00959BC664CA650E933C892C@example.com
-   END:VEVENT
-   BEGIN:VEVENT
-   DTSTAMP:20060206T001121Z
-   DTSTART:20060104T190000
-   DURATION:PT1H
-   RECURRENCE-ID:20060104T170000
-   SUMMARY:Event #2 bis
-   UID:00959BC664CA650E933C892C@example.com
-   END:VEVENT
-   END:VCALENDAR
-   </C:calendar-data>
-         </D:prop>
-         <D:status>HTTP/1.1 200 OK</D:status>
-       </D:propstat>
-     </D:response>
-     <D:response>
-       <D:href>http://cal.example.com/bernard/work/abcd3.ics</D:href>
-       <D:propstat>
-         <D:prop>
-           <D:getetag>"fffff-abcd3"</D:getetag>
-           <C:calendar-data>BEGIN:VCALENDAR
-   VERSION:2.0
-   PRODID:-//Example Corp.//CalDAV Client//EN
-   BEGIN:VEVENT
-   ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
-   ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
-   DTSTAMP:20060206T001220Z
-   DTSTART:20060104T150000
-   DURATION:PT1H
-   LAST-MODIFIED:20060206T001330Z
-   ORGANIZER:mailto:cyrus@example.com
-   SEQUENCE:1
-   STATUS:TENTATIVE
-   SUMMARY:Event #3
-   UID:DC6C50A017428C5216A2F1CD@example.com
-   X-ABC-GUID:E1CX5Dr-0007ym-Hz@example.com
-   END:VEVENT
-   END:VCALENDAR
-   </C:calendar-data>
-         </D:prop>
-         <D:status>HTTP/1.1 200 OK</D:status>
-       </D:propstat>
-"#;
+// Adapted from Example 7.8.3 of RFC 4791
+// In the RFC the output is wrong since it returns DTSTART in UTC as local time, e.g.
+// DTSTART:20060103T170000
+// instead of
+// DTSTART:20060103T170000Z
+// In https://datatracker.ietf.org/doc/html/rfc4791#section-9.6.5
+// it is clearly stated that times with timezone information MUST be returned in UTC.
+// Also, the RECURRENCE-ID needs to include the TIMEZONE, which is fixed here by converting it to
+// UTC
+const OUTPUT_7_8_3: &str = r#"<?xml version="1.0" encoding="utf-8"?>
+<multistatus xmlns="DAV:" xmlns:CAL="urn:ietf:params:xml:ns:caldav" xmlns:CARD="urn:ietf:params:xml:ns:carddav" xmlns:CS="http://calendarserver.org/ns/" xmlns:PUSH="https://bitfire.at/webdav-push">
+    <response>
+        <href>/caldav/principal/user/calendar/abcd2.ics</href>
+        <propstat>
+            <prop>
+                <CAL:calendar-data>BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART:20060103T170000Z
+DURATION:PT1H
+SUMMARY:Event #2
+UID:abcd2
+RECURRENCE-ID:20060103T170000Z
+END:VEVENT
+BEGIN:VEVENT
+DTSTAMP:20060206T001121Z
+DTSTART:20060104T190000Z
+DURATION:PT1H
+RECURRENCE-ID:20060104T170000Z
+SUMMARY:Event #2 bis
+UID:abcd2
+END:VEVENT
+END:VCALENDAR
+</CAL:calendar-data>
+            </prop>
+            <status>HTTP/1.1 200 OK</status>
+        </propstat>
+    </response>
+    <response>
+        <href>/caldav/principal/user/calendar/abcd3.ics</href>
+        <propstat>
+            <prop>
+                <CAL:calendar-data>BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
+ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+DTSTAMP:20060206T001220Z
+DTSTART:20060104T150000Z
+DURATION:PT1H
+LAST-MODIFIED:20060206T001330Z
+ORGANIZER:mailto:cyrus@example.com
+SEQUENCE:1
+STATUS:TENTATIVE
+SUMMARY:Event #3
+UID:abcd3
+X-ABC-GUID:E1CX5Dr-0007ym-Hz@example.com
+END:VEVENT
+END:VCALENDAR
+</CAL:calendar-data>
+            </prop>
+            <status>HTTP/1.1 200 OK</status>
+        </propstat>
+    </response>
+</multistatus>"#;

 #[rstest]
-#[case(0, ICS_1, REPORT_7_8_1)]
-#[case(1, ICS_1, REPORT_7_8_2)]
-#[case(2, ICS_1, REPORT_7_8_3)]
+#[case(0, ICS_1, REPORT_7_8_1, None)]
+#[case(1, ICS_1, REPORT_7_8_2, None)]
+#[case(2, ICS_1, REPORT_7_8_3, Some(OUTPUT_7_8_3))]
 #[tokio::test]
 async fn test_report(
    #[from(test_store_context)]
@@ -159,6 +168,7 @@ async fn test_report(
    #[case] case: usize,
    #[case] ics: &'static str,
    #[case] report: &'static str,
+    #[case] output: Option<&'static str>,
 ) {
    let context = context.await;
    let app = get_app(context.clone());
@@ -193,4 +203,7 @@ async fn test_report(
    assert_eq!(response.status(), StatusCode::MULTI_STATUS);
    let body = response.extract_string().await;
    insta::assert_snapshot!(format!("{case}_report_body"), body);
+    if let Some(output) = output {
+        similar_asserts::assert_eq!(output, body.replace('\r', ""));
+    }
 }
--- a/src/integration_tests/caldav/mod.rs
+++ b/src/integration_tests/caldav/mod.rs
@@ -9,7 +9,8 @@ use tower::ServiceExt;

 mod calendar;
 mod calendar_import;
-// mod calendar_report;
+mod calendar_put;
+mod calendar_report;

 #[rstest]
 #[tokio::test]
--- a/src/integration_tests/caldav/resources/rfc4791_appb.ics
+++ b/src/integration_tests/caldav/resources/rfc4791_appb.ics
@@ -55,6 +55,7 @@ SEQUENCE:1
 STATUS:TENTATIVE
 SUMMARY:Event #3
 UID:abcd3
+X-ABC-GUID:E1CX5Dr-0007ym-Hz@example.com
 END:VEVENT
 BEGIN:VTODO
 DTSTAMP:20060205T235335Z
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar__multiget_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar__multiget_body.snap
@@ -8,7 +8,7 @@ expression: body
        <href>/caldav/principal/user/calendar/qwue23489.ics</href>
        <propstat>
            <prop>
-                <getetag>&quot;aea50382a7775bb9742bfec277382e3a260b6066f503b5f5ae34548d7215ee46&quot;</getetag>
+                <getetag>&quot;f781224669f0db2674e9e45a9be2b01774c02136e3fb72792ef217bccf49fafa&quot;</getetag>
            </prop>
            <status>HTTP/1.1 200 OK</status>
        </propstat>
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar__propfind_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar__propfind_body.snap
@@ -14,9 +14,10 @@ expression: body
 PRODID:-//github.com/lennart-k/vzic-rs//RustiCal Calendar server//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:America/New_York
-LAST-MODIFIED:20250723T190331Z
-X-LIC-LOCATION:America/New_York
+TZID:US/Eastern
+TZID-ALIAS-OF:America/New_York
+LAST-MODIFIED:20260124T185655Z
+X-LIC-LOCATION:US/Eastern
 X-PROLEPTIC-TZNAME:LMT
 BEGIN:STANDARD
 TZNAME:EST
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__1_get_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_import__1_get_body.snap
@@ -60,6 +60,7 @@ SEQUENCE:1
 STATUS:TENTATIVE
 SUMMARY:Event #3
 UID:[UID]
+X-ABC-GUID:[UID]
 END:VEVENT
 BEGIN:VTODO
 DTSTAMP:20060205T235335Z
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__0_report_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__0_report_body.snap
@@ -56,7 +56,7 @@ END:VCALENDAR
        <href>/caldav/principal/user/calendar/abcd3.ics</href>
        <propstat>
            <prop>
-                <getetag>&quot;c6a5b1cf6985805686df99e7f2e1cf286567dcb3383fc6fa1b12ce42d3fbc01c&quot;</getetag>
+                <getetag>&quot;a84fd022dfc742bf8f17ac04fca3aad687e9ae724180185e8e0df11e432dae30&quot;</getetag>
                <CAL:calendar-data>BEGIN:VCALENDAR
 VERSION:2.0
 PRODID:-//Example Corp.//CalDAV Client//EN
@@ -90,6 +90,7 @@ SEQUENCE:1
 STATUS:TENTATIVE
 SUMMARY:Event #3
 UID:abcd3
+X-ABC-GUID:E1CX5Dr-0007ym-Hz@example.com
 END:VEVENT
 END:VCALENDAR
 </CAL:calendar-data>
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__1_report_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__1_report_body.snap
@@ -88,6 +88,7 @@ SEQUENCE:1
 STATUS:TENTATIVE
 SUMMARY:Event #3
 UID:abcd3
+X-ABC-GUID:E1CX5Dr-0007ym-Hz@example.com
 END:VEVENT
 END:VCALENDAR
 </CAL:calendar-data>
--- a/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__2_report_body.snap
+++ b/src/integration_tests/caldav/snapshots/rustical__integration_testscaldavcalendar_report__2_report_body.snap
@@ -13,19 +13,19 @@ VERSION:2.0
 PRODID:-//Example Corp.//CalDAV Client//EN
 BEGIN:VEVENT
 DTSTAMP:20060206T001121Z
+DTSTART:20060103T170000Z
 DURATION:PT1H
 SUMMARY:Event #2
 UID:abcd2
 RECURRENCE-ID:20060103T170000Z
-DTSTART:20060103T170000Z
 END:VEVENT
 BEGIN:VEVENT
 DTSTAMP:20060206T001121Z
+DTSTART:20060104T190000Z
 DURATION:PT1H
-SUMMARY:Event #2
-UID:abcd2
 RECURRENCE-ID:20060104T170000Z
-DTSTART:20060104T170000Z
+SUMMARY:Event #2 bis
+UID:abcd2
 END:VEVENT
 END:VCALENDAR
 </CAL:calendar-data>
@@ -44,7 +44,7 @@ BEGIN:VEVENT
 ATTENDEE;PARTSTAT=ACCEPTED;ROLE=CHAIR:mailto:cyrus@example.com
 ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
 DTSTAMP:20060206T001220Z
-DTSTART;TZID=US/Eastern:20060104T100000
+DTSTART:20060104T150000Z
 DURATION:PT1H
 LAST-MODIFIED:20060206T001330Z
 ORGANIZER:mailto:cyrus@example.com
@@ -52,6 +52,7 @@ SEQUENCE:1
 STATUS:TENTATIVE
 SUMMARY:Event #3
 UID:abcd3
+X-ABC-GUID:E1CX5Dr-0007ym-Hz@example.com
 END:VEVENT
 END:VCALENDAR
 </CAL:calendar-data>
--- a/src/integration_tests/mod.rs
+++ b/src/integration_tests/mod.rs
@@ -2,6 +2,7 @@ use crate::{app::make_app, config::NextcloudLoginConfig};
 use axum::extract::Request;
 use axum::{body::Body, response::Response};
 use rstest::rstest;
+use rustical_caldav::CalDavConfig;
 use rustical_frontend::FrontendConfig;
 use rustical_store_sqlite::tests::{TestStoreContext, test_store_context};
 use std::sync::Arc;
@@ -26,6 +27,7 @@ pub fn get_app(context: TestStoreContext) -> axum::Router {
            allow_password_login: true,
        },
        None,
+        CalDavConfig::default(),
        &NextcloudLoginConfig { enabled: false },
        false,
        true,
--- a/src/main.rs
+++ b/src/main.rs
@@ -25,7 +25,7 @@ use std::sync::Arc;
 use tokio::sync::mpsc::Receiver;
 use tower::Layer;
 use tower_http::normalize_path::NormalizePathLayer;
-use tracing::info;
+use tracing::{info, warn};

 mod app;
 mod commands;
@@ -67,17 +67,36 @@ async fn get_data_stores(
    Receiver<CollectionOperation>,
 )> {
    Ok(match &config {
-        DataStoreConfig::Sqlite(SqliteDataStoreConfig { db_url }) => {
+        DataStoreConfig::Sqlite(SqliteDataStoreConfig {
+            db_url,
+            run_repairs,
+            skip_broken,
+        }) => {
            let db = create_db_pool(db_url, migrate).await?;
            // Channel to watch for changes (for DAV Push)
            let (send, recv) = tokio::sync::mpsc::channel(1000);

-            let addressbook_store = Arc::new(SqliteAddressbookStore::new(db.clone(), send.clone()));
-            addressbook_store.repair_orphans().await?;
-            let cal_store = Arc::new(SqliteCalendarStore::new(db.clone(), send));
-            cal_store.repair_orphans().await?;
+            let addressbook_store = Arc::new(SqliteAddressbookStore::new(
+                db.clone(),
+                send.clone(),
+                *skip_broken,
+            ));
+            let cal_store = Arc::new(SqliteCalendarStore::new(db.clone(), send, *skip_broken));
+            if *run_repairs {
+                info!("Running repair tasks");
+                addressbook_store.repair_orphans().await?;
+                cal_store.repair_invalid_version_4_0().await?;
+                cal_store.repair_orphans().await?;
+            }
            let subscription_store = Arc::new(SqliteStore::new(db.clone()));
            let principal_store = Arc::new(SqlitePrincipalStore::new(db));
+
+            // Validate all calendar objects
+            for principal in principal_store.get_principals().await? {
+                cal_store.validate_objects(&principal.id).await?;
+                addressbook_store.validate_objects(&principal.id).await?;
+            }
+
            (
                addressbook_store,
                cal_store,
@@ -134,6 +153,7 @@ async fn main() -> Result<()> {
                principal_store.clone(),
                config.frontend.clone(),
                config.oidc.clone(),
+                config.caldav,
                &config.nextcloud_login,
                config.dav_push.enabled,
                config.http.session_cookie_samesite_strict,
Author	SHA1	Message	Date
Lennart	b89ff1a2b5	version 0.12.3	2026-01-24 22:49:02 +01:00
Lennart	246a1aa738	Add truncation for automatically derived timezones	2026-01-24 22:48:08 +01:00
Lennart	bb0484ac4a	version 0.12.2	2026-01-24 20:09:42 +01:00
Lennart	1b3da2a99b	update caldata-rs	2026-01-24 20:07:38 +01:00
Lennart	3b01ae1cf6	update test snapshots	2026-01-24 19:52:13 +01:00
Lennart K	d918a255a9	PUT calendar_object: Allow omission of timezones as in RFC7809	2026-01-24 19:44:58 +01:00
Lennart K	6a31d3000c	Update vtimezones-rs	2026-01-24 18:05:42 +01:00
Lennart K	d5892ab56b	Migrate ical-rs to caldata-rs	2026-01-22 11:01:00 +01:00
Lennart K	11a61cf8b1	version 0.12.1	2026-01-20 13:20:04 +01:00
Lennart Kämmle	227d4bc61a	Merge pull request #171 from wrvsrx/fix-anniversayr-typo Fix a typo about anniversary	2026-01-20 13:17:44 +01:00
wrvsrx	d9afc85222	Fix a typo about anniversary	2026-01-20 19:45:50 +08:00
Lennart	c9fe5706a9	clippy appeasement	2026-01-19 17:03:14 +01:00
Lennart	1b6214d426	MKCALENDAR: Handling of invalid timezones	2026-01-19 16:36:25 +01:00
Lennart	be34cc3091	xml: Implement namespace for Unparsed	2026-01-19 16:22:21 +01:00
Lennart	99287f85f4	version 0.12.0	2026-01-19 15:48:56 +01:00
Lennart	df3143cd4c	Fix status code for failed preconditions	2026-01-19 15:37:41 +01:00
Lennart Kämmle	92a3418f8e	Merge pull request #164 from lennart-k/feat/ical-rewrite ical-rs overhaul	2026-01-19 15:14:14 +01:00
Lennart	ea2f841269	ical-rs: Pin version to Git commit	2026-01-19 15:04:54 +01:00
Lennart	15e1509fe3	sqlite_store: Add option to skip broken objects and add validation on start-up	2026-01-19 14:48:21 +01:00
Lennart	0eef4ffabf	Add test for uploading invalid calendar object and fix precondition	2026-01-19 13:40:54 +01:00
Lennart	303f9aff68	Remove IcalError from caldav/carddav since it had an ambiguous status code	2026-01-19 12:51:51 +01:00
Lennart	3460a2821e	dav: Check Host matching for MV,COPY	2026-01-19 12:37:35 +01:00
Lennart	f73658b32f	Re-enable calendar-query test and fix calendar expansion	2026-01-19 12:09:34 +01:00
Lennart K	7e099bcd6e	Merge branch 'main' into feat/ical-rewrite	2026-01-16 16:47:17 +01:00
Lennart K	dde05d2f45	Workflow: Publish container images for feature branches too	2026-01-16 16:29:38 +01:00
Lennart K	4adf1818d4	Merge branch 'main' into feat/ical-rewrite	2026-01-16 15:58:17 +01:00
Lennart K	f503bf2bf7	Update quick-xml	2026-01-16 15:47:10 +01:00
Lennart K	7c15976a1a	rebase main	2026-01-16 15:41:39 +01:00
Lennart K	669d81aea0	address_object resource: Implement displayname	2026-01-16 15:39:56 +01:00
Lennart K	967d18de95	Fix comp-filter	2026-01-16 15:39:55 +01:00
Lennart K	63373ad525	simplify handling of ical-related errors	2026-01-16 15:39:54 +01:00
Lennart K	2c67890343	Update ical-rs	2026-01-16 15:39:53 +01:00
Lennart K	5ec2787ecf	build MVP for birthday calendar	2026-01-16 15:39:53 +01:00
Lennart K	7eecd95757	Remove calendar-query integration test for now	2026-01-16 15:39:52 +01:00
Lennart K	c165e761be	update ical-rs	2026-01-16 15:39:51 +01:00
Lennart K	5f68a5ae5c	Re-add get_last_occurence for sqlite store	2026-01-16 15:39:50 +01:00
Lennart K	c77b59dcb0	Remove unused code	2026-01-16 15:39:49 +01:00
Lennart K	276fdcacf5	Re-implement calendar imports	2026-01-16 15:39:48 +01:00
Lennart K	43fff63008	Calendar export: Fix PRODID	2026-01-16 15:39:47 +01:00
Lennart K	977fd75500	Re-implement calendar export	2026-01-16 15:39:46 +01:00
Lennart K	5639127782	clean up ical-related stuff	2026-01-16 15:39:44 +01:00
Lennart K	a2255bc7f1	make calendar object id extrinsic	2026-01-16 15:39:34 +01:00
Lennart K	758793a11a	Make AddressObject object_id an extrinsic property	2026-01-16 15:39:33 +01:00
Lennart K	a9f3833a32	small fixes	2026-01-16 15:39:30 +01:00
Lennart K	896e934c0a	Decrease folder nesting	2026-01-16 15:39:01 +01:00
Lennart K	bb880aa403	incorporate get_first_occurenec	2026-01-16 15:39:00 +01:00
Lennart K	69acde10ba	migrate to new ical-rs version	2026-01-16 15:38:57 +01:00
Lennart K	d84158e8ad	version 0.11.17	2026-01-16 12:26:43 +01:00
Lennart K	7ef566040a	Disable a test that will be fixed in 0.12	2026-01-16 12:16:02 +01:00
Lennart K	1c1f0c6da2	Update ical-rs@dev to fix cargo vendor	2026-01-16 12:10:10 +01:00
Lennart	3fafbd22f4	version 0.11.16	2026-01-15 23:43:00 +01:00
Lennart	e68dc921e6	Now actually fix builds	2026-01-15 23:19:35 +01:00
Lennart	60b45e70ad	fix docker builds	2026-01-15 22:31:40 +01:00
Lennart	a0c33c82dd	version 0.11.14	2026-01-15 13:32:45 +01:00
Lennart	8ae5e46abf	Automatic repair for calendar objects with invalid VERSION:4.0	2026-01-15 13:30:14 +01:00
Lennart	48b2e614a8	Suppress ical invalid version error	2026-01-15 11:15:20 +01:00
Lennart K	f26214abb9	build Docker images for dev branch	2026-01-12 11:15:08 +01:00
Lennart	276e65d41a	version 0.11.11	2026-01-10 13:37:24 +01:00
Lennart	7c3e9ecbc1	update ical-rs dev to remove panics	2026-01-10 13:35:14 +01:00
Lennart	53f81a9433	Add a startup test to check whether existing data will be compatible with v0.12	2026-01-10 13:22:49 +01:00