97 lines
4 KiB
Python
97 lines
4 KiB
Python
#!/usr/bin/env python3
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# coding=utf-8
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import json
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import logging
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import re
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from typing import Iterator
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import dict2xml
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import praw.models
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import yaml
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from bdfr.archive_entry.base_archive_entry import BaseArchiveEntry
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from bdfr.archive_entry.comment_archive_entry import CommentArchiveEntry
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from bdfr.archive_entry.submission_archive_entry import SubmissionArchiveEntry
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from bdfr.configuration import Configuration
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from bdfr.downloader import RedditDownloader
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from bdfr.exceptions import ArchiverError
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from bdfr.resource import Resource
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logger = logging.getLogger(__name__)
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class Archiver(RedditDownloader):
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def __init__(self, args: Configuration):
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super(Archiver, self).__init__(args)
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def download(self):
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for generator in self.reddit_lists:
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for submission in generator:
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logger.debug(f'Attempting to archive submission {submission.id}')
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self._write_entry(submission)
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def _get_submissions_from_link(self) -> list[list[praw.models.Submission]]:
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supplied_submissions = []
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for sub_id in self.args.link:
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if len(sub_id) == 6:
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supplied_submissions.append(self.reddit_instance.submission(id=sub_id))
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elif re.match(r'^\w{7}$', sub_id):
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supplied_submissions.append(self.reddit_instance.comment(id=sub_id))
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else:
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supplied_submissions.append(self.reddit_instance.submission(url=sub_id))
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return [supplied_submissions]
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def _get_user_data(self) -> list[Iterator]:
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results = super(Archiver, self)._get_user_data()
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if self.args.user and self.args.all_comments:
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sort = self._determine_sort_function()
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logger.debug(f'Retrieving comments of user {self.args.user}')
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results.append(sort(self.reddit_instance.redditor(self.args.user).comments, limit=self.args.limit))
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return results
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@staticmethod
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def _pull_lever_entry_factory(praw_item: (praw.models.Submission, praw.models.Comment)) -> BaseArchiveEntry:
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if isinstance(praw_item, praw.models.Submission):
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return SubmissionArchiveEntry(praw_item)
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elif isinstance(praw_item, praw.models.Comment):
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return CommentArchiveEntry(praw_item)
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else:
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raise ArchiverError(f'Factory failed to classify item of type {type(praw_item).__name__}')
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def _write_entry(self, praw_item: (praw.models.Submission, praw.models.Comment)):
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archive_entry = self._pull_lever_entry_factory(praw_item)
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if self.args.format == 'json':
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self._write_entry_json(archive_entry)
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elif self.args.format == 'xml':
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self._write_entry_xml(archive_entry)
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elif self.args.format == 'yaml':
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self._write_entry_yaml(archive_entry)
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else:
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raise ArchiverError(f'Unknown format {self.args.format} given')
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logger.info(f'Record for entry item {praw_item.id} written to disk')
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def _write_entry_json(self, entry: BaseArchiveEntry):
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resource = Resource(entry.source, '', '.json')
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content = json.dumps(entry.compile())
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self._write_content_to_disk(resource, content)
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def _write_entry_xml(self, entry: BaseArchiveEntry):
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resource = Resource(entry.source, '', '.xml')
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content = dict2xml.dict2xml(entry.compile(), wrap='root')
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self._write_content_to_disk(resource, content)
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def _write_entry_yaml(self, entry: BaseArchiveEntry):
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resource = Resource(entry.source, '', '.yaml')
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content = yaml.dump(entry.compile())
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self._write_content_to_disk(resource, content)
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def _write_content_to_disk(self, resource: Resource, content: str):
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file_path = self.file_name_formatter.format_path(resource, self.download_directory)
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file_path.parent.mkdir(exist_ok=True, parents=True)
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with open(file_path, 'w', encoding="utf-8") as file:
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logger.debug(
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f'Writing entry {resource.source_submission.id} to file in {resource.extension[1:].upper()}'
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f' format at {file_path}')
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file.write(content)
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