From 3dd6dfdf9a2a614970d96d15c256354ad047a683 Mon Sep 17 00:00:00 2001
From: Pete Gadomski <pete.gadomski@gmail.com>
Date: Mon, 28 Nov 2022 15:17:14 -0700
Subject: [PATCH 1/2] fix: parse datetimes more strictly

The whole string must now match the regex.
---
 pystac_client/item_search.py | 4 ++--
 tests/test_item_search.py    | 4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/pystac_client/item_search.py b/pystac_client/item_search.py
index ba1295d2..a229aecc 100644
--- a/pystac_client/item_search.py
+++ b/pystac_client/item_search.py
@@ -34,9 +34,9 @@
     from pystac_client import client as _client
 
 DATETIME_REGEX = re.compile(
-    r"(?P<year>\d{4})(-(?P<month>\d{2})(-(?P<day>\d{2})"
+    r"^(?P<year>\d{4})(-(?P<month>\d{2})(-(?P<day>\d{2})"
     r"(?P<remainder>([Tt])\d{2}:\d{2}:\d{2}(\.\d+)?"
-    r"(?P<tz_info>Z|([-+])(\d{2}):(\d{2}))?)?)?)?"
+    r"(?P<tz_info>[Zz]|([-+])(\d{2}):(\d{2}))?)?)?)?$"
 )
 
 
diff --git a/tests/test_item_search.py b/tests/test_item_search.py
index 718742d0..bdfc76f4 100644
--- a/tests/test_item_search.py
+++ b/tests/test_item_search.py
@@ -276,6 +276,10 @@ def test_datetime_list_of_one_none(self) -> None:
         with pytest.raises(Exception):
             ItemSearch(url=SEARCH_URL, datetime=[None])
 
+    def test_poorly_formed_datetimes(self) -> None:
+        with pytest.raises(Exception):
+            ItemSearch(url=SEARCH_URL, datetime="2020-7/2020-8")
+
     def test_single_collection_string(self) -> None:
         # Single ID string
         search = ItemSearch(url=SEARCH_URL, collections="naip")

From c99c2007fe83f9d03d6dfb0fbe50d5dbf7191ac0 Mon Sep 17 00:00:00 2001
From: Pete Gadomski <pete.gadomski@gmail.com>
Date: Mon, 28 Nov 2022 15:19:14 -0700
Subject: [PATCH 2/2] chore: update changelog

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b6f6362..b4de2a00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Fixed
 
 - Some mishandled cases for datetime intervals [#363](https://github.com/stac-utils/pystac-client/pull/363)
+- Parse datetimes more strictly [#364](https://github.com/stac-utils/pystac-client/pull/364)
 
 ### Removed