epicyon/shares.py

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__filename__ = "shares.py"
__author__ = "Bob Mottram"
__license__ = "AGPL3+"
__version__ = "1.1.0"
__maintainer__ = "Bob Mottram"
__email__ = "bob@freedombone.net"
__status__ = "Production"
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import os
import time
from webfinger import webfingerHandle
from auth import createBasicAuthHeader
from posts import getPersonBox
from session import postJson
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from session import postImage
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from utils import validNickname
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from utils import loadJson
from utils import saveJson
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from media import removeMetaData
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def getValidSharedItemID(displayName: str) -> str:
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"""Removes any invalid characters from the display name to
produce an item ID
"""
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displayName = displayName.replace(' ', '').replace('+', '-')
displayName = displayName.replace('/', '-').replace('\\', '-')
displayName = displayName.replace('.', '_').replace('?', '-')
displayName = displayName.replace('\n', '').replace("", "'")
return displayName.replace('&', '-')
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def removeShare(baseDir: str, nickname: str, domain: str,
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displayName: str) -> None:
"""Removes a share for a person
"""
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sharesFilename = baseDir + '/accounts/' + \
nickname + '@' + domain + '/shares.json'
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if not os.path.isfile(sharesFilename):
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print('ERROR: missing shares.json ' + sharesFilename)
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return
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sharesJson = loadJson(sharesFilename)
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if not sharesJson:
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print('ERROR: shares.json could not be loaded from ' + sharesFilename)
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return
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itemID = getValidSharedItemID(displayName)
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if sharesJson.get(itemID):
# remove any image for the item
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itemIDfile = baseDir + '/sharefiles/' + nickname + '/' + itemID
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if sharesJson[itemID]['imageUrl']:
if sharesJson[itemID]['imageUrl'].endswith('.png'):
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if os.path.isfile(itemIDfile + '.png'):
os.remove(itemIDfile + '.png')
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if sharesJson[itemID]['imageUrl'].endswith('.jpg'):
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if os.path.isfile(itemIDfile + '.jpg'):
os.remove(itemIDfile + '.jpg')
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if sharesJson[itemID]['imageUrl'].endswith('.gif'):
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if os.path.isfile(itemIDfile + '.gif'):
os.remove(itemIDfile + '.gif')
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# remove the item itself
del sharesJson[itemID]
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saveJson(sharesJson, sharesFilename)
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else:
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print('ERROR: share index "' + itemID +
'" does not exist in ' + sharesFilename)
def addShare(baseDir: str,
httpPrefix: str, nickname: str, domain: str, port: int,
displayName: str, summary: str, imageFilename: str,
itemType: str, itemCategory: str, location: str,
duration: str, debug: bool) -> None:
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"""Updates the likes collection within a post
"""
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sharesFilename = baseDir + '/accounts/' + \
nickname + '@' + domain + '/shares.json'
sharesJson = {}
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if os.path.isfile(sharesFilename):
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sharesJson = loadJson(sharesFilename)
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duration = duration.lower()
durationSec = 0
published = int(time.time())
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if ' ' in duration:
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durationList = duration.split(' ')
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if durationList[0].isdigit():
if 'hour' in durationList[1]:
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durationSec = published + (int(durationList[0]) * 60 * 60)
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if 'day' in durationList[1]:
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durationSec = published + (int(durationList[0]) * 60 * 60 * 24)
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if 'week' in durationList[1]:
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durationSec = \
published + (int(durationList[0]) * 60 * 60 * 24 * 7)
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if 'month' in durationList[1]:
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durationSec = \
published + (int(durationList[0]) * 60 * 60 * 24 * 30)
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if 'year' in durationList[1]:
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durationSec = \
published + (int(durationList[0]) * 60 * 60 * 24 * 365)
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itemID = getValidSharedItemID(displayName)
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# has an image for this share been uploaded?
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imageUrl = None
moveImage = False
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if not imageFilename:
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sharesImageFilename = \
baseDir + '/accounts/' + nickname + '@' + domain + '/upload'
if os.path.isfile(sharesImageFilename + '.png'):
imageFilename = sharesImageFilename + '.png'
moveImage = True
elif os.path.isfile(sharesImageFilename + '.jpg'):
imageFilename = sharesImageFilename + '.jpg'
moveImage = True
elif os.path.isfile(sharesImageFilename + '.gif'):
imageFilename = sharesImageFilename + '.gif'
moveImage = True
domainFull = domain
if port:
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if port != 80 and port != 443:
if ':' not in domain:
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domainFull = domain + ':' + str(port)
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# copy or move the image for the shared item to its destination
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if imageFilename:
if os.path.isfile(imageFilename):
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if not os.path.isdir(baseDir + '/sharefiles'):
os.mkdir(baseDir + '/sharefiles')
if not os.path.isdir(baseDir + '/sharefiles/' + nickname):
os.mkdir(baseDir + '/sharefiles/' + nickname)
itemIDfile = baseDir + '/sharefiles/' + nickname + '/' + itemID
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if imageFilename.endswith('.png'):
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removeMetaData(imageFilename, itemIDfile + '.png')
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if moveImage:
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os.remove(imageFilename)
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imageUrl = \
httpPrefix + '://' + domainFull + \
'/sharefiles/' + nickname + '/' + itemID + '.png'
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if imageFilename.endswith('.jpg'):
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removeMetaData(imageFilename, itemIDfile + '.jpg')
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if moveImage:
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os.remove(imageFilename)
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imageUrl = \
httpPrefix + '://' + domainFull + \
'/sharefiles/' + nickname + '/' + itemID + '.jpg'
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if imageFilename.endswith('.gif'):
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removeMetaData(imageFilename, itemIDfile + '.gif')
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if moveImage:
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os.remove(imageFilename)
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imageUrl = \
httpPrefix + '://' + domainFull + \
'/sharefiles/' + nickname + '/' + itemID + '.gif'
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sharesJson[itemID] = {
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"displayName": displayName,
"summary": summary,
"imageUrl": imageUrl,
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"itemType": itemType,
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"category": itemCategory,
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"location": location,
"published": published,
"expire": durationSec
}
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saveJson(sharesJson, sharesFilename)
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# indicate that a new share is available
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for subdir, dirs, files in os.walk(baseDir + '/accounts'):
for handle in dirs:
if '@' in handle:
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accountDir = baseDir + '/accounts/' + handle
newShareFile = accountDir + '/.newShare'
if not os.path.isfile(newShareFile):
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nickname = handle.split('@')[0]
try:
with open(newShareFile, 'w') as fp:
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fp.write(httpPrefix + '://' + domainFull +
'/users/' + nickname + '/tlshares')
except BaseException:
pass
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def expireShares(baseDir: str) -> None:
"""Removes expired items from shares
"""
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for subdir, dirs, files in os.walk(baseDir + '/accounts'):
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for account in dirs:
if '@' not in account:
continue
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nickname = account.split('@')[0]
domain = account.split('@')[1]
expireSharesForAccount(baseDir, nickname, domain)
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def expireSharesForAccount(baseDir: str, nickname: str, domain: str) -> None:
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"""Removes expired items from shares
"""
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handleDomain = domain
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if ':' in handleDomain:
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handleDomain = domain.split(':')[0]
handle = nickname + '@' + handleDomain
sharesFilename = baseDir + '/accounts/' + handle + '/shares.json'
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if os.path.isfile(sharesFilename):
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sharesJson = loadJson(sharesFilename)
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if sharesJson:
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currTime = int(time.time())
deleteItemID = []
for itemID, item in sharesJson.items():
if currTime > item['expire']:
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deleteItemID.append(itemID)
if deleteItemID:
for itemID in deleteItemID:
del sharesJson[itemID]
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# remove any associated images
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itemIDfile = \
baseDir + '/sharefiles/' + nickname + '/' + itemID
if os.path.isfile(itemIDfile + '.png'):
os.remove(itemIDfile + '.png')
if os.path.isfile(itemIDfile + '.jpg'):
os.remove(itemIDfile + '.jpg')
if os.path.isfile(itemIDfile + '.gif'):
os.remove(itemIDfile + '.gif')
saveJson(sharesJson, sharesFilename)
def getSharesFeedForPerson(baseDir: str,
domain: str, port: int,
path: str, httpPrefix: str,
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sharesPerPage=12) -> {}:
"""Returns the shares for an account from GET requests
"""
if '/shares' not in path:
return None
# handle page numbers
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headerOnly = True
pageNumber = None
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if '?page=' in path:
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pageNumber = path.split('?page=')[1]
if pageNumber == 'true':
pageNumber = 1
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else:
try:
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pageNumber = int(pageNumber)
except BaseException:
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pass
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path = path.split('?page=')[0]
headerOnly = False
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if not path.endswith('/shares'):
return None
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nickname = None
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if path.startswith('/users/'):
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nickname = path.replace('/users/', '', 1).replace('/shares', '')
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if path.startswith('/@'):
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nickname = path.replace('/@', '', 1).replace('/shares', '')
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if not nickname:
return None
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if not validNickname(domain, nickname):
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return None
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if port:
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if port != 80 and port != 443:
if ':' not in domain:
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domain = domain + ':' + str(port)
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handleDomain = domain
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if ':' in handleDomain:
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handleDomain = domain.split(':')[0]
handle = nickname + '@' + handleDomain
sharesFilename = baseDir + '/accounts/' + handle + '/shares.json'
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if headerOnly:
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noOfShares = 0
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if os.path.isfile(sharesFilename):
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sharesJson = loadJson(sharesFilename)
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if sharesJson:
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noOfShares = len(sharesJson.items())
idStr = httpPrefix + '://' + domain + '/users/' + nickname
shares = {
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'@context': 'https://www.w3.org/ns/activitystreams',
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'first': idStr+'/shares?page=1',
'id': idStr+'/shares',
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'totalItems': str(noOfShares),
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'type': 'OrderedCollection'
}
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return shares
if not pageNumber:
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pageNumber = 1
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nextPageNumber = int(pageNumber + 1)
idStr = httpPrefix + '://' + domain + '/users/' + nickname
shares = {
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'@context': 'https://www.w3.org/ns/activitystreams',
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'id': idStr+'/shares?page='+str(pageNumber),
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'orderedItems': [],
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'partOf': idStr+'/shares',
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'totalItems': 0,
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'type': 'OrderedCollectionPage'
}
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if not os.path.isfile(sharesFilename):
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print("test5")
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return shares
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currPage = 1
pageCtr = 0
totalCtr = 0
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sharesJson = loadJson(sharesFilename)
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if sharesJson:
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for itemID, item in sharesJson.items():
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pageCtr += 1
totalCtr += 1
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if currPage == pageNumber:
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shares['orderedItems'].append(item)
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if pageCtr >= sharesPerPage:
pageCtr = 0
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currPage += 1
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shares['totalItems'] = totalCtr
lastPage = int(totalCtr / sharesPerPage)
if lastPage < 1:
lastPage = 1
if nextPageNumber > lastPage:
shares['next'] = \
httpPrefix + '://' + domain + '/users/' + nickname + \
'/shares?page=' + str(lastPage)
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return shares
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def sendShareViaServer(baseDir, session,
fromNickname: str, password: str,
fromDomain: str, fromPort: int,
httpPrefix: str, displayName: str,
summary: str, imageFilename: str,
itemType: str, itemCategory: str,
location: str, duration: str,
cachedWebfingers: {}, personCache: {},
debug: bool, projectVersion: str) -> {}:
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"""Creates an item share via c2s
"""
if not session:
print('WARN: No session for sendShareViaServer')
return 6
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fromDomainFull = fromDomain
if fromPort:
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if fromPort != 80 and fromPort != 443:
if ':' not in fromDomain:
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fromDomainFull = fromDomain + ':' + str(fromPort)
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toUrl = 'https://www.w3.org/ns/activitystreams#Public'
ccUrl = httpPrefix + '://' + fromDomainFull + \
'/users/' + fromNickname + '/followers'
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actor = httpPrefix + '://' + fromDomainFull + '/users/' + fromNickname
newShareJson = {
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"@context": "https://www.w3.org/ns/activitystreams",
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'type': 'Add',
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'actor': actor,
'target': actor+'/shares',
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'object': {
"type": "Offer",
"displayName": displayName,
"summary": summary,
"itemType": itemType,
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"category": itemCategory,
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"location": location,
"duration": duration,
'to': [toUrl],
'cc': [ccUrl]
},
'to': [toUrl],
'cc': [ccUrl]
}
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handle = httpPrefix + '://' + fromDomainFull + '/@' + fromNickname
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# lookup the inbox for the To handle
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wfRequest = \
webfingerHandle(session, handle, httpPrefix,
cachedWebfingers,
fromDomain, projectVersion)
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if not wfRequest:
if debug:
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print('DEBUG: announce webfinger failed for ' + handle)
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return 1
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postToBox = 'outbox'
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# get the actor inbox for the To handle
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(inboxUrl, pubKeyId, pubKey,
fromPersonId, sharedInbox,
capabilityAcquisition,
avatarUrl, displayName) = getPersonBox(baseDir, session, wfRequest,
personCache, projectVersion,
httpPrefix, fromNickname,
fromDomain, postToBox)
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if not inboxUrl:
if debug:
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print('DEBUG: No ' + postToBox + ' was found for ' + handle)
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return 3
if not fromPersonId:
if debug:
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print('DEBUG: No actor was found for ' + handle)
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return 4
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authHeader = createBasicAuthHeader(fromNickname, password)
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if imageFilename:
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headers = {
'host': fromDomain,
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'Authorization': authHeader
}
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postResult = \
postImage(session, imageFilename, [],
inboxUrl.replace('/' + postToBox, '/shares'),
headers, "inbox:write")
headers = {
'host': fromDomain,
'Content-type': 'application/json',
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'Authorization': authHeader
}
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postResult = \
postJson(session, newShareJson, [], inboxUrl, headers, "inbox:write")
if not postResult:
if debug:
print('DEBUG: POST announce failed for c2s to ' + inboxUrl)
# return 5
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if debug:
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print('DEBUG: c2s POST share item success')
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return newShareJson
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def sendUndoShareViaServer(baseDir: str, session,
fromNickname: str, password: str,
fromDomain: str, fromPort: int,
httpPrefix: str, displayName: str,
cachedWebfingers: {}, personCache: {},
debug: bool, projectVersion: str) -> {}:
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"""Undoes a share via c2s
"""
if not session:
print('WARN: No session for sendUndoShareViaServer')
return 6
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fromDomainFull = fromDomain
if fromPort:
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if fromPort != 80 and fromPort != 443:
if ':' not in fromDomain:
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fromDomainFull = fromDomain + ':' + str(fromPort)
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toUrl = 'https://www.w3.org/ns/activitystreams#Public'
ccUrl = httpPrefix + '://' + fromDomainFull + \
'/users/' + fromNickname + '/followers'
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actor = httpPrefix + '://' + fromDomainFull + '/users/' + fromNickname
undoShareJson = {
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"@context": "https://www.w3.org/ns/activitystreams",
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'type': 'Remove',
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'actor': actor,
'target': actor + '/shares',
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'object': {
"type": "Offer",
"displayName": displayName,
'to': [toUrl],
'cc': [ccUrl]
},
'to': [toUrl],
'cc': [ccUrl]
}
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handle = httpPrefix + '://' + fromDomainFull + '/@' + fromNickname
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# lookup the inbox for the To handle
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wfRequest = \
webfingerHandle(session, handle, httpPrefix, cachedWebfingers,
fromDomain, projectVersion)
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if not wfRequest:
if debug:
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print('DEBUG: announce webfinger failed for ' + handle)
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return 1
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postToBox = 'outbox'
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# get the actor inbox for the To handle
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(inboxUrl, pubKeyId, pubKey,
fromPersonId, sharedInbox,
capabilityAcquisition,
avatarUrl, displayName) = getPersonBox(baseDir, session, wfRequest,
personCache, projectVersion,
httpPrefix, fromNickname,
fromDomain, postToBox)
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if not inboxUrl:
if debug:
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print('DEBUG: No '+postToBox+' was found for ' + handle)
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return 3
if not fromPersonId:
if debug:
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print('DEBUG: No actor was found for ' + handle)
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return 4
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authHeader = createBasicAuthHeader(fromNickname, password)
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headers = {
'host': fromDomain,
'Content-type': 'application/json',
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'Authorization': authHeader
}
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postResult = \
postJson(session, undoShareJson, [], inboxUrl, headers, "inbox:write")
if not postResult:
if debug:
print('DEBUG: POST announce failed for c2s to ' + inboxUrl)
# return 5
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if debug:
print('DEBUG: c2s POST undo share success')
return undoShareJson
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def outboxShareUpload(baseDir: str, httpPrefix: str,
nickname: str, domain: str, port: int,
messageJson: {}, debug: bool) -> None:
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""" When a shared item is received by the outbox from c2s
"""
if not messageJson.get('type'):
return
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if not messageJson['type'] == 'Add':
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return
if not messageJson.get('object'):
return
if not isinstance(messageJson['object'], dict):
return
if not messageJson['object'].get('type'):
if debug:
print('DEBUG: undo block - no type')
return
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if not messageJson['object']['type'] == 'Offer':
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if debug:
print('DEBUG: not an Offer activity')
return
if not messageJson['object'].get('displayName'):
if debug:
print('DEBUG: displayName missing from Offer')
return
if not messageJson['object'].get('summary'):
if debug:
print('DEBUG: summary missing from Offer')
return
if not messageJson['object'].get('itemType'):
if debug:
print('DEBUG: itemType missing from Offer')
return
if not messageJson['object'].get('category'):
if debug:
print('DEBUG: category missing from Offer')
return
if not messageJson['object'].get('location'):
if debug:
print('DEBUG: location missing from Offer')
return
if not messageJson['object'].get('duration'):
if debug:
print('DEBUG: duration missing from Offer')
return
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addShare(baseDir,
httpPrefix, nickname, domain, port,
messageJson['object']['displayName'],
messageJson['object']['summary'],
messageJson['object']['imageFilename'],
messageJson['object']['itemType'],
messageJson['object']['itemCategory'],
messageJson['object']['location'],
messageJson['object']['duration'],
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debug)
if debug:
print('DEBUG: shared item received via c2s')
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def outboxUndoShareUpload(baseDir: str, httpPrefix: str,
nickname: str, domain: str, port: int,
messageJson: {}, debug: bool) -> None:
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""" When a shared item is removed via c2s
"""
if not messageJson.get('type'):
return
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if not messageJson['type'] == 'Remove':
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return
if not messageJson.get('object'):
return
if not isinstance(messageJson['object'], dict):
return
if not messageJson['object'].get('type'):
if debug:
print('DEBUG: undo block - no type')
return
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if not messageJson['object']['type'] == 'Offer':
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if debug:
print('DEBUG: not an Offer activity')
return
if not messageJson['object'].get('displayName'):
if debug:
print('DEBUG: displayName missing from Offer')
return
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removeShare(baseDir, nickname, domain,
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messageJson['object']['displayName'])
if debug:
print('DEBUG: shared item removed via c2s')