From 3e8fc078db1aeedd104b7a4af4444cb38769da26 Mon Sep 17 00:00:00 2001
From: Niles Rogoff <me@niles.xyz>
Date: Sat, 4 Feb 2017 19:57:56 -0500
Subject: [PATCH] 1.1 released, comes with damaged flag

---
 .gitignore |  0
 libpme.py  | 23 ++++++++++++++---------
 readme.md  |  5 +++++
 setup.cfg  |  0
 setup.py   |  2 +-
 5 files changed, 20 insertions(+), 10 deletions(-)
 mode change 100644 => 100755 .gitignore
 mode change 100644 => 100755 libpme.py
 mode change 100644 => 100755 readme.md
 mode change 100644 => 100755 setup.cfg

diff --git a/.gitignore b/.gitignore
old mode 100644
new mode 100755
diff --git a/libpme.py b/libpme.py
old mode 100644
new mode 100755
index 940405b..fecc5ee
--- a/libpme.py
+++ b/libpme.py
@@ -3,34 +3,39 @@
 # Niles Rogoff 2016
 import zlib, copy
 class color_types(object):
-    GREYSCALE = 0
-    RGB = 2
-    PALETTE = 3
-    GREYSCALE_WITH_ALPHA = 4
-    RGB_WITH_ALPHA = 6
+	GREYSCALE = 0
+	RGB = 2
+	PALETTE = 3
+	GREYSCALE_WITH_ALPHA = 4
+	RGB_WITH_ALPHA = 6
 class PME(object):
+	def _assert(self, statement):
+		if not self._damaged:
+			assert(statement)
 	def _int(self, binary):
 		return int.from_bytes(binary, byteorder="big")
 	def _bytes(self, integer, length):
 		return integer.to_bytes(length, "big")
-	def __init__(self, filename=False):
+	def __init__(self, filename=False, damaged=False):
+		self._damaged = damaged
 		self._init = False
 		self._magic_number = b'\x89PNG\r\n\x1a\n'
 		self.filename = filename
 		self.chunks = []
 		if filename:
 			f = open(self.filename, "rb")
-			assert(f.read(8) == self._magic_number)
+			self._assert(f.read(8) == self._magic_number)
 			while True:
 				length = f.read(4)
 				label = f.read(4)
 				data = f.read(self._int(length))
 				crc = f.read(4)
-				self._verify_crc(label, data, crc)
+				if not self._damaged:
+					self._verify_crc(label, data, crc)
 				self.chunks.append([length, label, data, crc])
 				if label == b"IEND":
 					break
-			assert(self.chunks[0][1] == b"IHDR")
+			self._assert(self.chunks[0][1] == b"IHDR")
 			self.recalculate_properties()
 		else:
 			self.chunks = [
diff --git a/readme.md b/readme.md
old mode 100644
new mode 100755
index 80043a7..4e45c19
--- a/readme.md
+++ b/readme.md
@@ -128,3 +128,8 @@ In this example, we will draw a red sine wave on a new 100x100 file
 
 The output should look something like this:
 ![](http://i.imgur.com/vfa6lOR.png)
+
+## Changelog
+
+### 1.1
+Added the damaged argument to the constructor. If damaged is set to true, it will allow you to open potentially damaged png files, which maybe don't have IDAT as the first chunk, or have invalid CRCs
diff --git a/setup.cfg b/setup.cfg
old mode 100644
new mode 100755
diff --git a/setup.py b/setup.py
index 3a13547..4bb4cd9 100755
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 #from distutils.core import setup
 from setuptools import setup
 setup(name='libpme',
-      version='1.0',
+      version='1.1',
 	  description="PNG metadata editor library",
 	  author="Niles Rogoff",
 	  author_email="me@niles.xyz",