Code files added

Chapter06/eml_parser.py

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+from __future__ import print_function
+from argparse import ArgumentParser, FileType
+from email import message_from_file
+import os
+import quopri
+import base64
+
+"""
+MIT License
+
+Copyright (c) 2017 Chapin Bryce, Preston Miller
+
+Please share comments and questions at:
+    https://github.com/PythonForensics/PythonForensicsCookbook
+    or email pyforcookbook@gmail.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+"""
+
+__authors__ = ["Chapin Bryce", "Preston Miller"]
+__date__ = 20170815
+__description__ = "Utility to parse text and attachments from EML files"
+
+
+def process_payload(payload):
+    print(payload.get_content_type() + "\n" + "=" * len(
+        payload.get_content_type()))
+    body = quopri.decodestring(payload.get_payload())
+    if payload.get_charset():
+        body = body.decode(payload.get_charset())
+    else:
+        try:
+            body = body.decode()
+        except UnicodeDecodeError:
+            body = body.decode('cp1252')
+
+    if payload.get_content_type() == "text/html":
+        outfile = os.path.basename(args.EML_FILE.name) + ".html"
+        open(outfile, 'w').write(body)
+    elif payload.get_content_type().startswith('application'):
+        outfile = open(payload.get_filename(), 'wb')
+        body = base64.b64decode(payload.get_payload())
+        outfile.write(body)
+        outfile.close()
+        print("Exported: {}\n".format(outfile.name))
+    else:
+        print(body)
+
+
+def main(input_file):
+    emlfile = message_from_file(input_file)
+
+    # Start with the headers
+    for key, value in emlfile._headers:
+        print("{}: {}".format(key, value))
+
+    # Read payload
+    print("\nBody\n")
+    if emlfile.is_multipart():
+        for part in emlfile.get_payload():
+            process_payload(part)
+    else:
+        process_payload(emlfile[1])
+
+
+if __name__ == '__main__':
+    parser = ArgumentParser(
+        description=__description__,
+        epilog="Developed by {} on {}".format(
+            ", ".join(__authors__), __date__)
+    )
+    parser.add_argument("EML_FILE",
+                        help="Path to EML File", type=FileType('r'))
+    args = parser.parse_args()
+
+    main(args.EML_FILE)