Merge pull request #1967 from s4chin/remove-pillow

Add png parser

7 files changed, 76 insertions, 0 deletions

diff --git a/test/mitmproxy/contentviews/test_image_parser.py b/test/mitmproxy/contentviews/test_image_parser.py
new file mode 100644
index 00000000..62a07f56
--- /dev/null
+++ b/test/mitmproxy/contentviews/test_image_parser.py
@@ -0,0 +1,76 @@
+import pytest
+
+from mitmproxy.contentviews.image import image_parser
+from mitmproxy.test import tutils
+
+
+@pytest.mark.parametrize("filename, metadata", {
+    # no textual data
+    "mitmproxy/data/png_parser/ct0n0g04.png": [
+        ('Format', 'Portable network graphics'),
+        ('Size', '32 x 32 px'),
+        ('gamma', '1.0')
+    ],
+    # with textual data
+    "mitmproxy/data/png_parser/ct1n0g04.png": [
+        ('Format', 'Portable network graphics'),
+        ('Size', '32 x 32 px'),
+        ('gamma', '1.0'),
+        ('Title', 'PngSuite'),
+        ('Author', 'Willem A.J. van Schaik\n(willem@schaik.com)'),
+        ('Copyright', 'Copyright Willem van Schaik, Singapore 1995-96'),
+        ('Description', 'A compilation of a set of images created to test the\n'
+         'various color-types of the PNG format. Included are\nblack&white, color,'
+         ' paletted, with alpha channel, with\ntransparency formats. All bit-depths'
+         ' allowed according\nto the spec are present.'),
+        ('Software', 'Created on a NeXTstation color using "pnmtopng".'),
+        ('Disclaimer', 'Freeware.')
+    ],
+    # with compressed textual data
+    "mitmproxy/data/png_parser/ctzn0g04.png": [
+        ('Format', 'Portable network graphics'),
+        ('Size', '32 x 32 px'),
+        ('gamma', '1.0'),
+        ('Title', 'PngSuite'),
+        ('Author', 'Willem A.J. van Schaik\n(willem@schaik.com)'),
+        ('Copyright', 'Copyright Willem van Schaik, Singapore 1995-96'),
+        ('Description', 'A compilation of a set of images created to test the\n'
+         'various color-types of the PNG format. Included are\nblack&white, color,'
+         ' paletted, with alpha channel, with\ntransparency formats. All bit-depths'
+         ' allowed according\nto the spec are present.'),
+        ('Software', 'Created on a NeXTstation color using "pnmtopng".'),
+        ('Disclaimer', 'Freeware.')
+    ],
+    # UTF-8 international text - english
+    "mitmproxy/data/png_parser/cten0g04.png": [
+        ('Format', 'Portable network graphics'),
+        ('Size', '32 x 32 px'),
+        ('gamma', '1.0'),
+        ('Title', 'PngSuite'),
+        ('Author', 'Willem van Schaik (willem@schaik.com)'),
+        ('Copyright', 'Copyright Willem van Schaik, Canada 2011'),
+        ('Description', 'A compilation of a set of images created to test the '
+         'various color-types of the PNG format. Included are black&white, color,'
+         ' paletted, with alpha channel, with transparency formats. All bit-depths'
+         ' allowed according to the spec are present.'),
+        ('Software', 'Created on a NeXTstation color using "pnmtopng".'),
+        ('Disclaimer', 'Freeware.')
+    ],
+    # check gamma value
+    "mitmproxy/data/png_parser/g07n0g16.png": [
+        ('Format', 'Portable network graphics'),
+        ('Size', '32 x 32 px'),
+        ('gamma', '0.7')
+    ],
+    # check aspect value
+    "mitmproxy/data/png_parser/aspect.png": [
+        ('Format', 'Portable network graphics'),
+        ('Size', '1280 x 798 px'),
+        ('aspect', '72 x 72'),
+        ('date:create', '2012-07-11T14:04:52-07:00'),
+        ('date:modify', '2012-07-11T14:04:52-07:00')
+    ],
+}.items())
+def test_parse_png(filename, metadata):
+    with open(tutils.test_data.path(filename), "rb") as f:
+        assert metadata == image_parser.parse_png(f.read())
diff --git a/test/mitmproxy/data/png_parser/aspect.png b/test/mitmproxy/data/png_parser/aspect.png
new file mode 100644
index 00000000..17c01913
--- /dev/null
+++ b/test/mitmproxy/data/png_parser/aspect.png
diff --git a/test/mitmproxy/data/png_parser/ct0n0g04.png b/test/mitmproxy/data/png_parser/ct0n0g04.png
new file mode 100644
index 00000000..40d1e062
--- /dev/null
+++ b/test/mitmproxy/data/png_parser/ct0n0g04.png
diff --git a/test/mitmproxy/data/png_parser/ct1n0g04.png b/test/mitmproxy/data/png_parser/ct1n0g04.png
new file mode 100644
index 00000000..3ba110aa
--- /dev/null
+++ b/test/mitmproxy/data/png_parser/ct1n0g04.png
diff --git a/test/mitmproxy/data/png_parser/cten0g04.png b/test/mitmproxy/data/png_parser/cten0g04.png
new file mode 100644
index 00000000..a6a56faf
--- /dev/null
+++ b/test/mitmproxy/data/png_parser/cten0g04.png
diff --git a/test/mitmproxy/data/png_parser/ctzn0g04.png b/test/mitmproxy/data/png_parser/ctzn0g04.png
new file mode 100644
index 00000000..b4401c9c
--- /dev/null
+++ b/test/mitmproxy/data/png_parser/ctzn0g04.png
diff --git a/test/mitmproxy/data/png_parser/g07n0g16.png b/test/mitmproxy/data/png_parser/g07n0g16.png
new file mode 100644
index 00000000..d6a47c2d
--- /dev/null
+++ b/test/mitmproxy/data/png_parser/g07n0g16.png