#1994 - Make get_file_metadata throw an exception if photo or movie is unidentifiable/illegal.

- photo & movie helpers: modified to throw exceptions when file is known to be unidentifiable/illegal.
- item model: revised to work with exceptions and be more explicit when the data file is invalid.
- item model: removed duplicate get_file_metadata call for updated items.
- admin_watermarks controller: revised to work with exceptions (really cleans up logic here).
- graphics helper: revised to handle invalid placeholders (a nearly-impossible corner case, but still...).
- photo & movie helper tests: revised to work with exceptions, added new tests for illegal files with valid extensions.
- item model tests: revised to work with exceptions, added new tests for illegal files with valid extensions.

1 files changed, 16 insertions, 2 deletions

diff --git a/modules/gallery/tests/Photo_Helper_Test.php b/modules/gallery/tests/Photo_Helper_Test.php
index 5207a6db..79b5ccfd 100644
--- a/modules/gallery/tests/Photo_Helper_Test.php
+++ b/modules/gallery/tests/Photo_Helper_Test.php
@@ -40,8 +40,12 @@ class Photo_Helper_Test extends Gallery_Unit_Test_Case {
   }
 
   public function get_file_metadata_with_illegal_extension_test() {
-    $this->assert_equal(array(0, 0, null, null),
-                        photo::get_file_metadata(MODPATH . "gallery/tests/Photo_Helper_Test.php"));
+    try {
+      $metadata = photo::get_file_metadata(MODPATH . "gallery/tests/Photo_Helper_Test.php");
+      $this->assert_true(false, "Shouldn't get here");
+    } catch (Exception $e) {
+      // pass
+    }
   }
 
   public function get_file_metadata_with_illegal_extension_but_valid_file_contents_test() {
@@ -53,4 +57,14 @@ class Photo_Helper_Test extends Gallery_Unit_Test_Case {
     $this->assert_equal(array(1024, 768, "image/jpeg", "jpg"),
                         photo::get_file_metadata(TMPPATH . "test_jpg_with_php_extension.php"));
   }
+
+  public function get_file_metadata_with_valid_extension_but_illegal_file_contents_test() {
+    copy(MODPATH . "gallery/tests/Photo_Helper_Test.php", TMPPATH . "test_php_with_jpg_extension.jpg");
+    try {
+      $metadata = photo::get_file_metadata(TMPPATH . "test_php_with_jpg_extension.jpg");
+      $this->assert_true(false, "Shouldn't get here");
+    } catch (Exception $e) {
+      // pass
+    }
+  }
 }