feat: c2pa-rs and c2pa_c_ffi 0.68.0 update (#189)

* feat: Prepare 0.68.0 update

* fix: Load trust for some tests

* fix: Trust settings

* fix: Update tests

* fix: Restore deleted file

* fix: Update the examples

* fix: Clarify comment

* fix: CLean up old tmp test

* fix: Switch to json

* fix: Add sign all files test with V2 spec

* fix: Remove toml example

Author: tmathern

c2pa-native-version.txt

@@ -1 +1 @@
-c2pa-v0.67.1
+c2pa-v0.68.0

examples/sign.py

@@ -26,7 +26,7 @@
 fixtures_dir = os.path.join(os.path.dirname(__file__), "../tests/fixtures/")
 output_dir = os.path.join(os.path.dirname(__file__), "../output/")
 
-# Ensure the output directory exists
+# Ensure the output directory exists.
 if not os.path.exists(output_dir):
     os.makedirs(output_dir)
 
@@ -43,7 +43,7 @@
 with open(fixtures_dir + "es256_private.key", "rb") as key_file:
     key = key_file.read()
 
-# Define a callback signer function
+# Define a callback signer function.
 def callback_signer_es256(data: bytes) -> bytes:
     """Callback function that signs data using ES256 algorithm."""
     private_key = serialization.load_pem_private_key(
@@ -60,7 +60,6 @@ def callback_signer_es256(data: bytes) -> bytes:
 # Create a manifest definition as a dictionary.
 # This manifest follows the V2 manifest format.
 manifest_definition = {
-    "claim_generator": "python_example",
     "claim_generator_info": [{
         "name": "python_example",
         "version": "0.0.1",
@@ -87,7 +86,7 @@ def callback_signer_es256(data: bytes) -> bytes:
 }
 
 # Sign the image with the signer created above,
-# which will use the callback signer
+# which will use the callback signer.
 print("\nSigning the image file...")
 
 with c2pa.Signer.from_callback(
@@ -107,6 +106,9 @@ def callback_signer_es256(data: bytes) -> bytes:
 print("\nReading signed image metadata:")
 with open(output_dir + "A_signed.jpg", "rb") as file:
     with c2pa.Reader("image/jpeg", file) as reader:
+        # The validation state will depend on loaded trust settings.
+        # Without loaded trust settings,
+        # the manifest validation_state will be "Invalid".
         print(reader.json())
 
 print("\nExample completed successfully!")

examples/sign_info.py

@@ -100,6 +100,9 @@
 print("\nReading signed image metadata:")
 with open(output_dir + "C_signed.jpg", "rb") as file:
     with c2pa.Reader("image/jpeg", file) as reader:
+        # The validation state will depend on loaded trust settings.
+        # Without loaded trust settings,
+        # the manifest validation_state will be "Invalid".
         print(reader.json())
 
 print("\nExample completed successfully!")

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "c2pa-python"
-version = "0.27.1"
+version = "0.28.0"
 requires-python = ">=3.10"
 description = "Python bindings for the C2PA Content Authenticity Initiative (CAI) library"
 readme = { file = "README.md", content-type = "text/markdown" }

tests/__init__.py

@@ -0,0 +1 @@
+# Placeholder