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81 lines
2.6 KiB
Python
81 lines
2.6 KiB
Python
from pywb.utils.canonicalize import calc_search_range
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from pywb.cdx.cdxobject import CDXObject
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from pywb.warc.cdxindexer import write_cdx_index
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from pywb.utils.timeutils import iso_date_to_timestamp
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from io import BytesIO
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import os
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from webagg.indexsource import RedisIndexSource
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from webagg.aggregator import SimpleAggregator
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from webagg.utils import res_template
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from recorder.filters import WriteRevisitDupePolicy
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#==============================================================================
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class WritableRedisIndexer(RedisIndexSource):
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def __init__(self, *args, **kwargs):
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redis_url = kwargs.get('redis_url')
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redis = kwargs.get('redis')
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cdx_key_template = kwargs.get('cdx_key_template')
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super(WritableRedisIndexer, self).__init__(redis_url,
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redis,
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cdx_key_template)
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name = kwargs.get('name', 'recorder')
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self.cdx_lookup = SimpleAggregator({name: self})
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self.rel_path_template = kwargs.get('rel_path_template', '')
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self.file_key_template = kwargs.get('file_key_template', '')
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self.dupe_policy = kwargs.get('dupe_policy', WriteRevisitDupePolicy())
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def add_warc_file(self, full_filename, params):
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rel_path = res_template(self.rel_path_template, params)
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filename = os.path.relpath(full_filename, rel_path)
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file_key = res_template(self.file_key_template, params)
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self.redis.hset(file_key, filename, full_filename)
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def add_urls_to_index(self, stream, params, filename, length):
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rel_path = res_template(self.rel_path_template, params)
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filename = os.path.relpath(filename, rel_path)
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cdxout = BytesIO()
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write_cdx_index(cdxout, stream, filename,
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cdxj=True, append_post=True)
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z_key = res_template(self.redis_key_template, params)
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cdx_list = cdxout.getvalue().rstrip().split(b'\n')
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for cdx in cdx_list:
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if cdx:
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self.redis.zadd(z_key, 0, cdx)
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return cdx_list
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def lookup_revisit(self, params, digest, url, iso_dt):
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params['url'] = url
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params['closest'] = iso_date_to_timestamp(iso_dt)
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filters = []
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filters.append('!mime:warc/revisit')
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if digest and digest != '-':
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filters.append('digest:' + digest.split(':')[-1])
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params['filter'] = filters
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cdx_iter, errs = self.cdx_lookup(params)
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for cdx in cdx_iter:
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res = self.dupe_policy(cdx, params)
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if res:
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return res
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return None
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