From 3a4a7a669eba245f77e6f802cc32caca245ec15d Mon Sep 17 00:00:00 2001 From: Lars-Dominik Braun 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)) + -- cgit v1.2.3