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56 lines
1.8 KiB
56 lines
1.8 KiB
# -*- coding: utf-8 -*-
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# Copyright 2015-2021 Mike Fährmann
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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class Message():
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"""Enum for message identifiers
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Extractors yield their results as message-tuples, where the first element
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is one of the following identifiers. This message-identifier determines
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the type and meaning of the other elements in such a tuple.
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- Message.Version:
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- Message protocol version (currently always '1')
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- 2nd element specifies the version of all following messages as integer
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- Message.Directory:
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- Sets the target directory for all following images
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- 2nd element is a dictionary containing general metadata
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- Message.Url:
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- Image URL and its metadata
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- 2nd element is the URL as a string
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- 3rd element is a dictionary with image-specific metadata
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- Message.Headers: # obsolete
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- HTTP headers to use while downloading
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- 2nd element is a dictionary with header-name and -value pairs
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- Message.Cookies: # obsolete
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- Cookies to use while downloading
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- 2nd element is a dictionary with cookie-name and -value pairs
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- Message.Queue:
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- (External) URL that should be handled by another extractor
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- 2nd element is the (external) URL as a string
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- 3rd element is a dictionary containing URL-specific metadata
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- Message.Urllist: # obsolete
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- Same as Message.Url, but its 2nd element is a list of multiple URLs
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- The additional URLs serve as a fallback if the primary one fails
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"""
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Version = 1
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Directory = 2
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Url = 3
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# Headers = 4
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# Cookies = 5
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Queue = 6
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# Urllist = 7
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# Metadata = 8
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