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Merge branch 'develop' into 'production' 

Develop

See merge request taobojlen/fediverse.space!49
This commit is contained in:
Tao Bojlén 2019-03-08 16:07:25 +00:00
parent 3d4cf07c1a bb9e224e9c
commit a22d447644
4 changed files with 47 additions and 20 deletions
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10
backend/scraper/management/commands/_util.py
View File

@ -69,5 +69,11 @@ def validate_int(integer):
return integer if (isinstance(integer, int) and 0 <= integer < 2147483647) else None
def log(text):
return "{} - {}".format(datetime.now().isoformat(), text)
def log(obj, text, success=False, error=False):
text = "{} - {}".format(datetime.now().isoformat(), text)
if success:
text = obj.style.SUCCESS(text)
if error:
obj.stderr.write(text)
else:
obj.stdout.write(text)

54
backend/scraper/management/commands/scrape.py
View File

@ -21,11 +21,11 @@ from scraper.management.commands._util import require_lock, InvalidResponseExcep
# TODO: use the /api/v1/server/followers and /api/v1/server/following endpoints in peertube instances
SEED = 'mastodon.social'
SEED = 'p.a3.pm'
TIMEOUT = 20 # seconds
NUM_THREADS = 16 # roughly 40MB each
PERSONAL_INSTANCE_THRESHOLD = 10 # instances with < this many users won't be crawled
MAX_STATUSES_PER_PAGE = 100
MAX_STATUSES_PER_PAGE = 40
STATUS_SCRAPE_LIMIT = 5000
INSTANCE_SCRAPE_LIMIT = 50 # note: this does not include newly discovered instances! they will always be crawled.
@ -47,26 +47,38 @@ class Command(BaseCommand):
dest='all',
help="Crawl all instances rather than limiting to stale ones"
)
parser.add_argument(
'--verbose',
action='store_true',
dest='verbose',
help="Verbose logging"
)
parser.add_argument(
'--instance',
dest='instance',
help="Crawl a single instance"
)
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.verbose = False
self.scraped_count = 0
f = open(os.path.join(settings.BASE_DIR, '../whitelist.txt'), 'r')
self.whitelist = seq(f.readlines()).map(lambda i: i.lower().strip()).to_list()
f.close()
@staticmethod
def get_instance_info(instance_name: str):
def get_instance_info(self, instance_name: str):
"""Collect info about instance"""
url = 'https://' + instance_name + '/api/v1/instance'
response = requests.get(url, timeout=TIMEOUT)
json = response.json()
if response.status_code != 200 or get_key(json, ['error']):
if self.verbose:
log(self, "Couldn't get instance info for {}: {}".format(instance_name, response), error=True)
raise InvalidResponseException("Could not get info for {}".format(instance_name))
return json
@staticmethod
def get_instance_peers(instance_name: str):
def get_instance_peers(self, instance_name: str):
"""Collect connected instances"""
# The peers endpoint returns a "list of all domain names known to this instance"
# (https://github.com/tootsuite/mastodon/pull/6125)
@ -74,24 +86,29 @@ class Command(BaseCommand):
response = requests.get(url, timeout=TIMEOUT)
peers = response.json()
if response.status_code != 200 or not isinstance(peers, list) or get_key(peers, ['error']):
if self.verbose:
log(self, "Couldn't get peers for {}: {}".format(instance_name, response), error=True)
raise InvalidResponseException("Could not get peers for {}".format(instance_name))
# Get rid of peers that just say "null" and the instance itself
# Also make sure to lowercase all instance names and remove duplicates
return list(set([peer.lower() for peer in peers if peer and peer != instance_name]))
@staticmethod
def get_statuses(instance_name: str):
def get_statuses(self, instance_name: str):
"""Collect all statuses that mention users on other instances"""
mentions = []
datetime_threshold = datetime.now(timezone.utc) - timedelta(days=31)
statuses_seen = 0
# We'll ask for lots of statuses, but Mastodon never returns more than 40. Some Pleroma instances will ignore
# the limit and return 20.
url = 'https://{}/api/v1/timelines/public?local=true&limit={}/'.format(instance_name, MAX_STATUSES_PER_PAGE)
url = 'https://{}/api/v1/timelines/public?local=true&limit={}'.format(instance_name, MAX_STATUSES_PER_PAGE)
while True:
if self.verbose:
log(self, "({} posts seen)\tGetting {}".format(statuses_seen, url))
response = requests.get(url, timeout=TIMEOUT)
statuses = response.json()
if response.status_code != 200 or get_key(statuses, ['error']):
if self.verbose:
log(self, "Couldn't get statuses for {}: {}".format(instance_name, response), error=True)
raise InvalidResponseException("Could not get statuses for {}".format(instance_name))
elif len(statuses) == 0:
break
@ -197,7 +214,7 @@ class Command(BaseCommand):
relationship.last_updated = datetime.now()
bulk_update(relationships, update_fields=['mention_count', 'statuses_seen', 'last_updated'])
self.stdout.write(log("Processed {}: {}".format(data['instance_name'], data['status'])))
log(self, "Processed {}: {}".format(data['instance_name'], data['status']))
def worker(self, queue: mp.JoinableQueue, existing_instance_ids, scraped_ids):
"""The main worker that processes instances"""
@ -206,12 +223,12 @@ class Command(BaseCommand):
instance = queue.get()
if instance.name in scraped_ids:
# If we hit this branch, it's indicative of a bug
self.stderr.write(log("Skipping {}, already done. This should not have been added to the queue!"
.format(instance)))
log(self, "Skipping {}, already done. This should not have been added to the queue!".format(instance),
error=True)
queue.task_done()
else:
# Fetch data on instance
self.stdout.write(log("Processing {}".format(instance.name)))
log(self, "Processing {}".format(instance.name))
data = self.process_instance(instance)
self.save_data(instance, data, queue, existing_instance_ids)
scraped_ids[instance.name] = 1
@ -219,7 +236,13 @@ class Command(BaseCommand):
def handle(self, *args, **options):
start_time = time.time()
if options['all']:
self.verbose = options['verbose']
if options['instance']:
stale_instance, _ = Instance.objects.get_or_create(name=options['instance'])
stale_instances = [stale_instance]
elif options['all']:
stale_instances = Instance.objects.all()
else:
stale_instances = Instance.objects.filter(last_updated__lte=datetime.now()-timedelta(days=1))
@ -246,5 +269,4 @@ class Command(BaseCommand):
self.scraped_count = len(scraped_ids.keys())
end_time = time.time()
self.stdout.write(self.style.SUCCESS(log("Scraped {} instances in {:.0f}s"
.format(self.scraped_count, end_time - start_time))))
log(self, "Scraped {} instances in {:.0f}s".format(self.scraped_count, end_time - start_time), True)

1
backend/whitelist.txt
View File

@ -1 +0,0 @@
mastodon.social

2
frontend/src/components/Sidebar.tsx
View File

@ -267,7 +267,7 @@ class SidebarImpl extends React.Component<ISidebarProps, ISidebarState> {
<NonIdealState
icon={IconNames.BLOCKED_PERSON}
title="No data"
description="This instance has fewer than 5 users. It was not crawled in order to protect their privacy, but if it's your instance you can opt in."
description="This instance has fewer than 10 users. It was not crawled in order to protect their privacy, but if it's your instance you can opt in."
action={<AnchorButton icon={IconNames.CONFIRM} href="https://cursed.technology/@tao" target="_blank">
Message @tao to opt in</AnchorButton>}
/>