mirror of
https://github.com/netzbegruenung/green-spider.git
synced 2024-04-28 07:14:51 +02:00
ae6a2e83e9
See PR description for details
152 lines
4.5 KiB
Python
152 lines
4.5 KiB
Python
"""
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Exports data from the database to JSON files for use in a static webapp
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"""
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from hashlib import md5
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import json
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import logging
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import sys
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import os
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import requests
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SITEICONS_PATH = "/icons"
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def export_results(client, entity_kind):
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"""
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Export of the main results data
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"""
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out = []
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# Load data from database
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query = client.query(kind=entity_kind)
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for entity in query.fetch():
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logging.debug(entity.key.name)
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out.append({
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'input_url': entity.key.name,
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'resulting_urls': entity.get('checks').get('url_canonicalization'),
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'created': entity.get('created').isoformat(),
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'meta': entity.get('meta'),
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'checks': entity.get('checks'),
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'rating': entity.get('rating'),
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'score': entity.get('score'),
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'icons': [],
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})
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# load icons, reformat icons details
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icons_downloaded = set()
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for index in range(len(out)):
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assert "checks" in out[index]
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assert "html_head" in out[index]["checks"]
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# collect icons urls
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icons = set()
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for url in out[index]['checks']['html_head']:
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assert 'link_icon' in out[index]['checks']['html_head'][url]
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if out[index]['checks']['html_head'][url]['link_icon'] is not None:
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iconurl = out[index]['checks']['html_head'][url]['link_icon']
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if iconurl.startswith("data:"):
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continue
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if iconurl in icons_downloaded:
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continue
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icons.add(iconurl)
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out[index]["icons"] = {}
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for iconurl in list(icons):
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logging.debug("Dowloading icon %s", iconurl)
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icons_downloaded.add(iconurl)
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filename = download_icon(iconurl)
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if filename:
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out[index]["icons"][url] = filename
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output_filename = "/out/spider_result.json"
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with open(output_filename, 'w', encoding="utf8") as jsonfile:
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json.dump(out, jsonfile, indent=2, sort_keys=True, ensure_ascii=False)
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# compact version
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output_filename = "/out/spider_result_compact.json"
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for i in range(len(out)):
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out[i]['cms'] = list(out[i]['checks']['generator'].values())
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del out[i]['checks']
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with open(output_filename, 'w', encoding="utf8") as jsonfile:
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json.dump(out, jsonfile, indent=2, sort_keys=True, ensure_ascii=False)
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def export_screenshots(client):
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"""
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Export of screenshot meta data
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"""
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out = {}
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query = client.query(kind='webscreenshot')
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for item in query.fetch():
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if 'screenshot_url' not in item:
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logging.error("Export failed. No 'screenshot_url' attribute set in dataset. %s\n" % item)
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return
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logging.debug("url: %s, screenshot_url: %s" % (item['url'], item['screenshot_url']))
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filename = os.path.basename(item['screenshot_url'])
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out[item['url']] = filename
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output_filename = "/out/screenshots.json"
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with open(output_filename, 'w', encoding="utf8") as jsonfile:
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json.dump(out, jsonfile, indent=2, sort_keys=True, ensure_ascii=False)
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def download_icon(icon_url):
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"""
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Download an icon from the given URL and store it with
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a file name of <hash>.<ending>
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"""
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default_endings = {
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"image/x-ico": "ico",
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"image/x-icon": "ico",
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"image/vnd.microsoft.icon": "ico",
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"image/png": "png",
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"image/jpeg": "jpg",
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"image/gif": "gif",
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}
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# Download the icon
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try:
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req = requests.get(icon_url, timeout=10)
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except:
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return None
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if req.status_code >= 400:
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return None
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content_hash = md5(req.content).hexdigest()
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extension = ""
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try:
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file_name = os.path.basename(icon_url)[-1]
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except IndexError as exc:
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logging.error("Error in URL %s: %s", icon_url, exc)
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return None
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if file_name != "" and "." in file_name:
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ext = file_name.split(".")[-1]
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if ext != "":
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extension = ext
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if extension == "":
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# derive from content type
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ctype = req.headers.get('content-type')
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if ctype is None:
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return
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try:
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extension = default_endings[ctype]
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except KeyError:
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logging.error("No file ending defined for icon type '%s'", ctype)
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return None
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filename = content_hash + "." + extension.lower()
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path = SITEICONS_PATH + os.path.sep + filename
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with open(path, 'wb') as iconfile:
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iconfile.write(req.content)
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return filename
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