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author | Bryan Newbold <bnewbold@archive.org> | 2019-09-25 18:01:29 -0700 |
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committer | Bryan Newbold <bnewbold@archive.org> | 2019-09-25 18:01:29 -0700 |
commit | 716483103dd7fdfe7aab2982c51abae6d3f4271b (patch) | |
tree | 31f957048d63e32579d480983dbb922065796cce /python/deliver_gwb_to_disk.py | |
parent | 55957b81de5e438f2a245177d624040e74e721b3 (diff) | |
download | sandcrawler-716483103dd7fdfe7aab2982c51abae6d3f4271b.tar.gz sandcrawler-716483103dd7fdfe7aab2982c51abae6d3f4271b.zip |
move a bunch of random old scripts to subdir
Diffstat (limited to 'python/deliver_gwb_to_disk.py')
-rwxr-xr-x | python/deliver_gwb_to_disk.py | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/python/deliver_gwb_to_disk.py b/python/deliver_gwb_to_disk.py deleted file mode 100755 index 3dcf962..0000000 --- a/python/deliver_gwb_to_disk.py +++ /dev/null @@ -1,166 +0,0 @@ -#!/usr/bin/env python3 -""" -Tool for bulk copying of PDFs (or other files) from GWB to local disk. -""" - -# XXX: some broken MRO thing going on in here due to python3 object wrangling -# in `wayback` library. Means we can't run pylint. -# pylint: skip-file - -import os -import sys -import json -import base64 -import hashlib -import argparse -from collections import Counter - -import raven -import wayback.exception -from http.client import IncompleteRead -from wayback.resourcestore import ResourceStore -from gwb.loader import CDXLoaderFactory - -# Yep, a global. Gets DSN from `SENTRY_DSN` environment variable -sentry_client = raven.Client() - - -class DeliverGwbDisk: - - def __init__(self, disk_dir, **kwargs): - self.warc_uri_prefix = kwargs.get('warc_uri_prefix') - self.rstore = None - self.count = Counter() - # /serve/ instead of /download/ doesn't record view count - self.petabox_base_url = kwargs.get('petabox_base_url', 'http://archive.org/serve/') - # gwb library will fall back to reading from /opt/.petabox/webdata.secret - self.petabox_webdata_secret = kwargs.get('petabox_webdata_secret', os.environ.get('PETABOX_WEBDATA_SECRET')) - self.disk_dir = disk_dir - self.disk_prefix = kwargs.get('disk_prefix', 'pdf/') - self.disk_suffix = kwargs.get('disk_suffix', '.pdf') - - def fetch_warc_content(self, warc_path, offset, c_size): - warc_uri = self.warc_uri_prefix + warc_path - if not self.rstore: - self.rstore = ResourceStore(loaderfactory=CDXLoaderFactory( - webdata_secret=self.petabox_webdata_secret, - download_base_url=self.petabox_base_url)) - try: - gwb_record = self.rstore.load_resource(warc_uri, offset, c_size) - except wayback.exception.ResourceUnavailable: - return None, dict(status="error", - reason="failed to load file contents from wayback/petabox (ResourceUnavailable)") - except ValueError as ve: - return None, dict(status="error", - reason="failed to load file contents from wayback/petabox (ValueError: {})".format(ve)) - except EOFError as eofe: - return None, dict(status="error", - reason="failed to load file contents from wayback/petabox (EOFError: {})".format(eofe)) - except TypeError as te: - return None, dict(status="error", - reason="failed to load file contents from wayback/petabox (TypeError: {}; likely a bug in wayback python code)".format(te)) - # Note: could consider a generic "except Exception" here, as we get so - # many petabox errors. Do want jobs to fail loud and clear when the - # whole cluster is down though. - - if gwb_record.get_status()[0] != 200: - return None, dict(status="error", - reason="archived HTTP response (WARC) was not 200", - warc_status=gwb_record.get_status()[0]) - - try: - raw_content = gwb_record.open_raw_content().read() - except IncompleteRead as ire: - return None, dict(status="error", - reason="failed to read actual file contents from wayback/petabox (IncompleteRead: {})".format(ire)) - return raw_content, None - - def run(self, manifest_file): - sys.stderr.write("Ensuring all 65536 base directories exist...\n") - for i in range(256): - for j in range(256): - fpath = "{}/{}{:02x}/{:02x}".format( - self.disk_dir, - self.disk_prefix, - i, - j) - os.makedirs(fpath, exist_ok=True) - sys.stderr.write("Starting...\n") - for line in manifest_file: - self.count['total'] += 1 - line = line.strip().split('\t') - if len(line) != 2: - self.count['skip-line'] += 1 - continue - sha1_hex, cdx_json = line[0], line[1] - assert len(sha1_hex) == 40 - file_cdx = json.loads(cdx_json) - # If warc is not item/file.(w)arc.gz form, skip it - if len(file_cdx['warc'].split('/')) != 2: - sys.stderr.write('WARC path not petabox item/file: {}'.format(file_cdx['warc'])) - print("{}\tskip warc\t{}".format(sha1_hex, file_cdx['warc'])) - self.count['skip-warc'] += 1 - continue - # fetch from GWB/petabox via HTTP range-request - blob, status = self.fetch_warc_content(file_cdx['warc'], file_cdx['offset'], file_cdx['c_size']) - if blob is None and status: - print("{}\terror petabox\t{}\t{}".format(sha1_hex, file_cdx['warc'], status['reason'])) - self.count['err-petabox-fetch'] += 1 - continue - elif not blob: - print("{}\tskip-empty-blob".format(sha1_hex)) - self.count['skip-empty-blob'] += 1 - continue - # verify sha1 - if sha1_hex != hashlib.sha1(blob).hexdigest(): - #assert sha1_hex == hashlib.sha1(blob).hexdigest() - #sys.stderr.write("{}\terror petabox-mismatch\n".format(sha1_hex)) - print("{}\terror petabox-hash-mismatch".format(sha1_hex)) - self.count['err-petabox-hash-mismatch'] += 1 - - self.count['petabox-ok'] += 1 - # save to disk - fpath = "{}/{}{}/{}/{}{}".format( - self.disk_dir, - self.disk_prefix, - sha1_hex[0:2], - sha1_hex[2:4], - sha1_hex, - self.disk_suffix) - with open(fpath, 'wb') as f: - f.write(blob) - print("{}\tsuccess\t{}\t{}".format(sha1_hex, fpath, len(blob))) - self.count['success-disk'] += 1 - sys.stderr.write("{}\n".format(self.count)) - -@sentry_client.capture_exceptions -def main(): - - parser = argparse.ArgumentParser() - parser.add_argument('--disk-dir', - required=True, - type=str, - help='local base directory to save into') - parser.add_argument('--disk-prefix', - type=str, - default="pdf/", - help='directory prefix for items created in bucket') - parser.add_argument('--disk-suffix', - type=str, - default=".pdf", - help='file suffix for created files') - parser.add_argument('--warc-uri-prefix', - type=str, - default='https://archive.org/serve/', - help='URI where WARCs can be found') - parser.add_argument('manifest_file', - help="TSV/JSON manifest file", - default=sys.stdin, - type=argparse.FileType('r')) - args = parser.parse_args() - - worker = DeliverGwbDisk(**args.__dict__) - worker.run(args.manifest_file) - -if __name__ == '__main__': # pragma: no cover - main() |