From 3a4a7a669eba245f77e6f802cc32caca245ec15d Mon Sep 17 00:00:00 2001
From: Lars-Dominik Braun <lars@6xq.net>
Date: Fri, 20 Apr 2018 13:31:46 +0200
Subject: Add screenshot extraction script to contrib/
---
contrib/extractScreenshot.py | 54 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
create mode 100755 contrib/extractScreenshot.py
diff --git a/contrib/extractScreenshot.py b/contrib/extractScreenshot.py
new file mode 100755
index 0000000..80911d5
--- /dev/null
+++ b/contrib/extractScreenshot.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2017 crocoite contributors
+#
+# 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.
+
+"""
+Extract page screenshots from a WARC generated by crocoite into files
+"""
+
+import shutil, sys, re, os
+from warcio.archiveiterator import ArchiveIterator
+
+if __name__ == '__main__':
+ import argparse
+
+ parser = argparse.ArgumentParser(description='Extract screenshots.')
+ parser.add_argument('-f', '--force', action='store_true', help='Overwrite existing files')
+ parser.add_argument('input', type=argparse.FileType ('rb'), help='Input WARC')
+ parser.add_argument('prefix', help='Output file prefix')
+
+ args = parser.parse_args()
+
+ screenshotRe = re.compile (r'^urn:crocoite:screenshot-(\d+)-(\d+).png$', re.I)
+ with args.input:
+ for record in ArchiveIterator(args.input):
+ uri = record.rec_headers.get_header('WARC-Target-URI')
+ if record.rec_type == 'resource':
+ m = screenshotRe.match (uri)
+ xoff, yoff = m.groups ()
+ if m:
+ outpath = '{}-{}-{}.png'.format (args.prefix, xoff, yoff)
+ if args.force or not os.path.exists (outpath):
+ with open (outpath, 'wb') as out:
+ shutil.copyfileobj (record.raw_stream, out)
+ else:
+ print ('not overwriting {}'.format (outpath))
+
--
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