epicyon/shares.py

1069 lines
36 KiB
Python
Raw Blame History

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

__filename__ = "shares.py"
__author__ = "Bob Mottram"
__license__ = "AGPL3+"
__version__ = "1.2.0"
__maintainer__ = "Bob Mottram"
__email__ = "bob@freedombone.net"
__status__ = "Production"
__module_group__ = "Timeline"
import os
import re
import secrets
import time
import datetime
from webfinger import webfingerHandle
from auth import createBasicAuthHeader
from auth import constantTimeStringCheck
from posts import getPersonBox
from session import postJson
from session import postImage
from utils import getFullDomain
from utils import validNickname
from utils import loadJson
from utils import saveJson
from utils import getImageExtensions
from utils import hasObjectDict
from utils import removeDomainPort
from utils import isAccountDir
from utils import acctDir
from utils import isfloat
from media import processMetaData
def _loadDfcIds(baseDir: str, systemLanguage: str) -> {}:
"""Loads the product types ontology
This is used to add an id to shared items
"""
productTypesFilename = baseDir + '/ontology/customProductTypes.json'
if not os.path.isfile(productTypesFilename):
productTypesFilename = baseDir + '/ontology/productTypes.json'
productTypes = loadJson(productTypesFilename)
if not productTypes:
return None
if not productTypes.get('@graph'):
return None
if len(productTypes['@graph']) == 0:
return None
if not productTypes['@graph'][0].get('rdfs:label'):
return None
languageExists = False
for label in productTypes['@graph'][0]['rdfs:label']:
if not label.get('@language'):
continue
if productTypes['@graph'][0]['rdfs:label']['@language'] == \
systemLanguage:
languageExists = True
break
if not languageExists:
print('productTypes ontology does not contain the language ' +
systemLanguage)
return None
dfcIds = {}
for item in productTypes['@graph']:
if not item.get('@id'):
continue
if not item.get('rdfs:label'):
continue
for label in item['rdfs:label']:
if not label.get('@language'):
continue
if not label.get('@value'):
continue
if label['@language'] == systemLanguage:
dfcIds[label['@value'].lower()] = item['@id']
break
return dfcIds
def getValidSharedItemID(actor: str, displayName: str) -> str:
"""Removes any invalid characters from the display name to
produce an item ID
"""
removeChars = (' ', '\n', '\r')
for ch in removeChars:
displayName = displayName.replace(ch, '')
removeChars2 = ('+', '/', '\\', '?', '&')
for ch in removeChars2:
displayName = displayName.replace(ch, '-')
displayName = displayName.replace('.', '_')
displayName = displayName.replace("", "'")
return actor + '/item/' + displayName
def removeSharedItem(baseDir: str, nickname: str, domain: str,
displayName: str,
httpPrefix: str, domainFull: str) -> None:
"""Removes a share for a person
"""
sharesFilename = acctDir(baseDir, nickname, domain) + '/shares.json'
if not os.path.isfile(sharesFilename):
print('ERROR: missing shares.json ' + sharesFilename)
return
sharesJson = loadJson(sharesFilename)
if not sharesJson:
print('ERROR: shares.json could not be loaded from ' + sharesFilename)
return
actor = httpPrefix + '://' + domainFull + '/users/' + nickname
itemID = getValidSharedItemID(actor, displayName)
if sharesJson.get(itemID):
# remove any image for the item
itemIDfile = baseDir + '/sharefiles/' + nickname + '/' + itemID
if sharesJson[itemID]['imageUrl']:
formats = getImageExtensions()
for ext in formats:
if sharesJson[itemID]['imageUrl'].endswith('.' + ext):
if os.path.isfile(itemIDfile + '.' + ext):
os.remove(itemIDfile + '.' + ext)
# remove the item itself
del sharesJson[itemID]
saveJson(sharesJson, sharesFilename)
else:
print('ERROR: share index "' + itemID +
'" does not exist in ' + sharesFilename)
def _addShareDurationSec(duration: str, published: str) -> int:
"""Returns the duration for the shared item in seconds
"""
if ' ' not in duration:
return 0
durationList = duration.split(' ')
if not durationList[0].isdigit():
return 0
if 'hour' in durationList[1]:
return published + (int(durationList[0]) * 60 * 60)
if 'day' in durationList[1]:
return published + (int(durationList[0]) * 60 * 60 * 24)
if 'week' in durationList[1]:
return published + (int(durationList[0]) * 60 * 60 * 24 * 7)
if 'month' in durationList[1]:
return published + (int(durationList[0]) * 60 * 60 * 24 * 30)
if 'year' in durationList[1]:
return published + (int(durationList[0]) * 60 * 60 * 24 * 365)
return 0
def _getshareDfcId(baseDir: str, systemLanguage: str,
itemType: str, itemCategory: str,
translate: {}) -> str:
"""Attempts to obtain a DFC Id for the shared item,
based upon productTypes ontology.
See https://github.com/datafoodconsortium/ontology
"""
if translate['food'] not in itemCategory.lower():
return ''
dfcIds = _loadDfcIds(baseDir, systemLanguage)
if not dfcIds:
return ''
itemTypeLower = itemType.lower()
matchName = ''
matchId = ''
for name, uri in dfcIds.items():
if name not in itemTypeLower:
continue
if len(name) > len(matchName):
matchName = name
matchId = uri
if not matchId:
# bag of words match
maxMatchedWords = 0
for name, uri in dfcIds.items():
words = name.split(' ')
score = 0
for wrd in words:
if wrd in itemTypeLower:
score += 1
if score > maxMatchedWords:
maxMatchedWords = score
matchId = uri
return matchId
def _indicateNewShareAvailable(baseDir: str, httpPrefix: str,
domainFull: str) -> None:
"""Indicate to each account that a new share is available
"""
for subdir, dirs, files in os.walk(baseDir + '/accounts'):
for handle in dirs:
if not isAccountDir(handle):
continue
accountDir = baseDir + '/accounts/' + handle
newShareFile = accountDir + '/.newShare'
if os.path.isfile(newShareFile):
continue
nickname = handle.split('@')[0]
try:
with open(newShareFile, 'w+') as fp:
fp.write(httpPrefix + '://' + domainFull +
'/users/' + nickname + '/tlshares')
except BaseException:
pass
break
def addShare(baseDir: str,
httpPrefix: str, nickname: str, domain: str, port: int,
displayName: str, summary: str, imageFilename: str,
itemQty: int, itemType: str, itemCategory: str, location: str,
duration: str, debug: bool, city: str,
price: str, currency: str,
systemLanguage: str, translate: {}) -> None:
"""Adds a new share
"""
sharesFilename = acctDir(baseDir, nickname, domain) + '/shares.json'
sharesJson = {}
if os.path.isfile(sharesFilename):
sharesJson = loadJson(sharesFilename, 1, 2)
duration = duration.lower()
published = int(time.time())
durationSec = _addShareDurationSec(duration, published)
domainFull = getFullDomain(domain, port)
actor = httpPrefix + '://' + domainFull + '/users/' + nickname
itemID = getValidSharedItemID(actor, displayName)
dfcId = _getshareDfcId(baseDir, systemLanguage,
itemType, itemCategory, translate)
# has an image for this share been uploaded?
imageUrl = None
moveImage = False
if not imageFilename:
sharesImageFilename = \
acctDir(baseDir, nickname, domain) + '/upload'
formats = getImageExtensions()
for ext in formats:
if os.path.isfile(sharesImageFilename + '.' + ext):
imageFilename = sharesImageFilename + '.' + ext
moveImage = True
domainFull = getFullDomain(domain, port)
# copy or move the image for the shared item to its destination
if imageFilename:
if os.path.isfile(imageFilename):
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
formats = getImageExtensions()
for ext in formats:
if not imageFilename.endswith('.' + ext):
continue
processMetaData(baseDir, nickname, domain,
imageFilename, itemIDfile + '.' + ext,
city)
if moveImage:
os.remove(imageFilename)
imageUrl = \
httpPrefix + '://' + domainFull + \
'/sharefiles/' + nickname + '/' + itemID + '.' + ext
sharesJson[itemID] = {
"displayName": displayName,
"summary": summary,
"imageUrl": imageUrl,
"itemQty": itemQty,
"dfcId": dfcId,
"itemType": itemType,
"category": itemCategory,
"location": location,
"published": published,
"expire": durationSec,
"price": price,
"currency": currency
}
saveJson(sharesJson, sharesFilename)
_indicateNewShareAvailable(baseDir, httpPrefix, domainFull)
def expireShares(baseDir: str) -> None:
"""Removes expired items from shares
"""
for subdir, dirs, files in os.walk(baseDir + '/accounts'):
for account in dirs:
if not isAccountDir(account):
continue
nickname = account.split('@')[0]
domain = account.split('@')[1]
_expireSharesForAccount(baseDir, nickname, domain)
break
def _expireSharesForAccount(baseDir: str, nickname: str, domain: str) -> None:
"""Removes expired items from shares for a particular account
"""
handleDomain = removeDomainPort(domain)
handle = nickname + '@' + handleDomain
sharesFilename = baseDir + '/accounts/' + handle + '/shares.json'
if not os.path.isfile(sharesFilename):
return
sharesJson = loadJson(sharesFilename, 1, 2)
if not sharesJson:
return
currTime = int(time.time())
deleteItemID = []
for itemID, item in sharesJson.items():
if currTime > item['expire']:
deleteItemID.append(itemID)
if not deleteItemID:
return
for itemID in deleteItemID:
del sharesJson[itemID]
# remove any associated images
itemIDfile = baseDir + '/sharefiles/' + nickname + '/' + itemID
formats = getImageExtensions()
for ext in formats:
if os.path.isfile(itemIDfile + '.' + ext):
os.remove(itemIDfile + '.' + ext)
saveJson(sharesJson, sharesFilename)
def getSharesFeedForPerson(baseDir: str,
domain: str, port: int,
path: str, httpPrefix: str,
sharesPerPage=12) -> {}:
"""Returns the shares for an account from GET requests
"""
if '/shares' not in path:
return None
# handle page numbers
headerOnly = True
pageNumber = None
if '?page=' in path:
pageNumber = path.split('?page=')[1]
if pageNumber == 'true':
pageNumber = 1
else:
try:
pageNumber = int(pageNumber)
except BaseException:
pass
path = path.split('?page=')[0]
headerOnly = False
if not path.endswith('/shares'):
return None
nickname = None
if path.startswith('/users/'):
nickname = path.replace('/users/', '', 1).replace('/shares', '')
if path.startswith('/@'):
nickname = path.replace('/@', '', 1).replace('/shares', '')
if not nickname:
return None
if not validNickname(domain, nickname):
return None
domain = getFullDomain(domain, port)
handleDomain = removeDomainPort(domain)
sharesFilename = acctDir(baseDir, nickname, handleDomain) + '/shares.json'
if headerOnly:
noOfShares = 0
if os.path.isfile(sharesFilename):
sharesJson = loadJson(sharesFilename)
if sharesJson:
noOfShares = len(sharesJson.items())
idStr = httpPrefix + '://' + domain + '/users/' + nickname
shares = {
'@context': 'https://www.w3.org/ns/activitystreams',
'first': idStr + '/shares?page=1',
'id': idStr + '/shares',
'totalItems': str(noOfShares),
'type': 'OrderedCollection'
}
return shares
if not pageNumber:
pageNumber = 1
nextPageNumber = int(pageNumber + 1)
idStr = httpPrefix + '://' + domain + '/users/' + nickname
shares = {
'@context': 'https://www.w3.org/ns/activitystreams',
'id': idStr + '/shares?page=' + str(pageNumber),
'orderedItems': [],
'partOf': idStr + '/shares',
'totalItems': 0,
'type': 'OrderedCollectionPage'
}
if not os.path.isfile(sharesFilename):
print("test5")
return shares
currPage = 1
pageCtr = 0
totalCtr = 0
sharesJson = loadJson(sharesFilename)
if sharesJson:
for itemID, item in sharesJson.items():
pageCtr += 1
totalCtr += 1
if currPage == pageNumber:
shares['orderedItems'].append(item)
if pageCtr >= sharesPerPage:
pageCtr = 0
currPage += 1
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)
return shares
def sendShareViaServer(baseDir, session,
fromNickname: str, password: str,
fromDomain: str, fromPort: int,
httpPrefix: str, displayName: str,
summary: str, imageFilename: str,
itemQty: int, itemType: str, itemCategory: str,
location: str, duration: str,
cachedWebfingers: {}, personCache: {},
debug: bool, projectVersion: str,
itemPrice: str, itemCurrency: str) -> {}:
"""Creates an item share via c2s
"""
if not session:
print('WARN: No session for sendShareViaServer')
return 6
fromDomainFull = getFullDomain(fromDomain, fromPort)
toUrl = 'https://www.w3.org/ns/activitystreams#Public'
ccUrl = httpPrefix + '://' + fromDomainFull + \
'/users/' + fromNickname + '/followers'
actor = httpPrefix + '://' + fromDomainFull + '/users/' + fromNickname
newShareJson = {
"@context": "https://www.w3.org/ns/activitystreams",
'type': 'Add',
'actor': actor,
'target': actor + '/shares',
'object': {
"type": "Offer",
"displayName": displayName,
"summary": summary,
"itemQty": itemQty,
"itemType": itemType,
"category": itemCategory,
"location": location,
"duration": duration,
"itemPrice": itemPrice,
"itemCurrency": itemCurrency,
'to': [toUrl],
'cc': [ccUrl]
},
'to': [toUrl],
'cc': [ccUrl]
}
handle = httpPrefix + '://' + fromDomainFull + '/@' + fromNickname
# lookup the inbox for the To handle
wfRequest = \
webfingerHandle(session, handle, httpPrefix,
cachedWebfingers,
fromDomain, projectVersion, debug)
if not wfRequest:
if debug:
print('DEBUG: share webfinger failed for ' + handle)
return 1
if not isinstance(wfRequest, dict):
print('WARN: share webfinger for ' + handle +
' did not return a dict. ' + str(wfRequest))
return 1
postToBox = 'outbox'
# get the actor inbox for the To handle
(inboxUrl, pubKeyId, pubKey,
fromPersonId, sharedInbox,
avatarUrl, displayName) = getPersonBox(baseDir, session, wfRequest,
personCache, projectVersion,
httpPrefix, fromNickname,
fromDomain, postToBox,
83653)
if not inboxUrl:
if debug:
print('DEBUG: share no ' + postToBox +
' was found for ' + handle)
return 3
if not fromPersonId:
if debug:
print('DEBUG: share no actor was found for ' + handle)
return 4
authHeader = createBasicAuthHeader(fromNickname, password)
if imageFilename:
headers = {
'host': fromDomain,
'Authorization': authHeader
}
postResult = \
postImage(session, imageFilename, [],
inboxUrl.replace('/' + postToBox, '/shares'),
headers)
headers = {
'host': fromDomain,
'Content-type': 'application/json',
'Authorization': authHeader
}
postResult = \
postJson(httpPrefix, fromDomainFull,
session, newShareJson, [], inboxUrl, headers, 30, True)
if not postResult:
if debug:
print('DEBUG: POST share failed for c2s to ' + inboxUrl)
# return 5
if debug:
print('DEBUG: c2s POST share item success')
return newShareJson
def sendUndoShareViaServer(baseDir: str, session,
fromNickname: str, password: str,
fromDomain: str, fromPort: int,
httpPrefix: str, displayName: str,
cachedWebfingers: {}, personCache: {},
debug: bool, projectVersion: str) -> {}:
"""Undoes a share via c2s
"""
if not session:
print('WARN: No session for sendUndoShareViaServer')
return 6
fromDomainFull = getFullDomain(fromDomain, fromPort)
toUrl = 'https://www.w3.org/ns/activitystreams#Public'
ccUrl = httpPrefix + '://' + fromDomainFull + \
'/users/' + fromNickname + '/followers'
actor = httpPrefix + '://' + fromDomainFull + '/users/' + fromNickname
undoShareJson = {
"@context": "https://www.w3.org/ns/activitystreams",
'type': 'Remove',
'actor': actor,
'target': actor + '/shares',
'object': {
"type": "Offer",
"displayName": displayName,
'to': [toUrl],
'cc': [ccUrl]
},
'to': [toUrl],
'cc': [ccUrl]
}
handle = httpPrefix + '://' + fromDomainFull + '/@' + fromNickname
# lookup the inbox for the To handle
wfRequest = \
webfingerHandle(session, handle, httpPrefix, cachedWebfingers,
fromDomain, projectVersion, debug)
if not wfRequest:
if debug:
print('DEBUG: unshare webfinger failed for ' + handle)
return 1
if not isinstance(wfRequest, dict):
print('WARN: unshare webfinger for ' + handle +
' did not return a dict. ' + str(wfRequest))
return 1
postToBox = 'outbox'
# get the actor inbox for the To handle
(inboxUrl, pubKeyId, pubKey,
fromPersonId, sharedInbox,
avatarUrl, displayName) = getPersonBox(baseDir, session, wfRequest,
personCache, projectVersion,
httpPrefix, fromNickname,
fromDomain, postToBox,
12663)
if not inboxUrl:
if debug:
print('DEBUG: unshare no ' + postToBox +
' was found for ' + handle)
return 3
if not fromPersonId:
if debug:
print('DEBUG: unshare no actor was found for ' + handle)
return 4
authHeader = createBasicAuthHeader(fromNickname, password)
headers = {
'host': fromDomain,
'Content-type': 'application/json',
'Authorization': authHeader
}
postResult = \
postJson(httpPrefix, fromDomainFull,
session, undoShareJson, [], inboxUrl,
headers, 30, True)
if not postResult:
if debug:
print('DEBUG: POST unshare failed for c2s to ' + inboxUrl)
# return 5
if debug:
print('DEBUG: c2s POST unshare success')
return undoShareJson
def outboxShareUpload(baseDir: str, httpPrefix: str,
nickname: str, domain: str, port: int,
messageJson: {}, debug: bool, city: str,
systemLanguage: str, translate: {}) -> None:
""" When a shared item is received by the outbox from c2s
"""
if not messageJson.get('type'):
return
if not messageJson['type'] == 'Add':
return
if not hasObjectDict(messageJson):
return
if not messageJson['object'].get('type'):
if debug:
print('DEBUG: undo block - no type')
return
if not messageJson['object']['type'] == 'Offer':
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('itemQty'):
if debug:
print('DEBUG: itemQty 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
addShare(baseDir,
httpPrefix, nickname, domain, port,
messageJson['object']['displayName'],
messageJson['object']['summary'],
messageJson['object']['imageFilename'],
messageJson['object']['itemQty'],
messageJson['object']['itemType'],
messageJson['object']['itemCategory'],
messageJson['object']['location'],
messageJson['object']['duration'],
debug, city,
messageJson['object']['itemPrice'],
messageJson['object']['itemCurrency'],
systemLanguage, translate)
if debug:
print('DEBUG: shared item received via c2s')
def outboxUndoShareUpload(baseDir: str, httpPrefix: str,
nickname: str, domain: str, port: int,
messageJson: {}, debug: bool) -> None:
""" When a shared item is removed via c2s
"""
if not messageJson.get('type'):
return
if not messageJson['type'] == 'Remove':
return
if not hasObjectDict(messageJson):
return
if not messageJson['object'].get('type'):
if debug:
print('DEBUG: undo block - no type')
return
if not messageJson['object']['type'] == 'Offer':
if debug:
print('DEBUG: not an Offer activity')
return
if not messageJson['object'].get('displayName'):
if debug:
print('DEBUG: displayName missing from Offer')
return
domainFull = getFullDomain(domain, port)
removeSharedItem(baseDir, nickname, domain,
messageJson['object']['displayName'],
httpPrefix, domainFull)
if debug:
print('DEBUG: shared item removed via c2s')
def _sharesCatalogParams(path: str) -> (bool, float, float, str):
"""Returns parameters when accessing the shares catalog
"""
today = False
minPrice = 0
maxPrice = 9999999
matchPattern = None
if '?' not in path:
return today, minPrice, maxPrice, matchPattern
args = path.split('?', 1)[1]
argList = args.split(';')
for arg in argList:
if '=' not in arg:
continue
key = arg.split('=')[0].lower()
value = arg.split('=')[1]
if key == 'today':
value = value.lower()
if 't' in value or 'y' in value or '1' in value:
today = True
elif key.startswith('min'):
if isfloat(value):
minPrice = float(value)
elif key.startswith('max'):
if isfloat(value):
maxPrice = float(value)
elif key.startswith('match'):
matchPattern = value
return today, minPrice, maxPrice, matchPattern
def sharesCatalogAccountEndpoint(baseDir: str, httpPrefix: str,
nickname: str, domain: str,
domainFull: str,
path: str) -> {}:
"""Returns the endpoint for the shares catalog of a particular account
See https://github.com/datafoodconsortium/ontology
"""
today, minPrice, maxPrice, matchPattern = _sharesCatalogParams(path)
dfcUrl = \
"http://static.datafoodconsortium.org/ontologies/DFC_FullModel.owl#"
dfcPtUrl = \
"http://static.datafoodconsortium.org/data/productTypes.rdf#"
owner = httpPrefix + '://' + domainFull + '/users/' + nickname
dfcInstanceId = owner + '/dfc-catalog'
endpoint = {
"@context": {
"DFC": dfcUrl,
"dfc-pt": dfcPtUrl,
"@base": "http://maPlateformeNationale"
},
"@id": dfcInstanceId,
"@type": "DFC:Entreprise",
"DFC:supplies": []
}
currDate = datetime.datetime.utcnow()
currDateStr = currDate.strftime("%Y-%m-%d")
sharesFilename = acctDir(baseDir, nickname, domain) + '/shares.json'
if not os.path.isfile(sharesFilename):
return endpoint
sharesJson = loadJson(sharesFilename, 1, 2)
if not sharesJson:
return endpoint
for itemID, item in sharesJson.items():
if not item.get('dfcId'):
continue
if '#' not in item['dfcId']:
continue
if today:
if not item['published'].startswith(currDateStr):
continue
if minPrice is not None:
if float(item['itemPrice']) < minPrice:
continue
if maxPrice is not None:
if float(item['itemPrice']) > maxPrice:
continue
description = item['displayName'] + ': ' + item['summary']
if matchPattern:
if not re.match(matchPattern, description):
continue
expireDate = datetime.datetime.fromtimestamp(item['durationSec'])
expireDateStr = expireDate.strftime("%Y-%m-%dT%H:%M:%SZ")
shareId = getValidSharedItemID(owner, item['displayName'])
dfcId = item['dfcId'].split('#')[1]
priceStr = item['itemPrice'] + ' ' + item['currency']
catalogItem = {
"@id": shareId,
"@type": "DFC:SuppliedProduct",
"DFC:hasType": "dfc-pt:" + dfcId,
"DFC:startDate": item['published'],
"DFC:expiryDate": expireDateStr,
"DFC:quantity": item['itemQty'],
"DFC:price": priceStr,
"DFC:Image": item['imageUrl'],
"DFC:description": description
}
endpoint['DFC:supplies'].append(catalogItem)
return endpoint
def sharesCatalogEndpoint(baseDir: str, httpPrefix: str,
domainFull: str,
path: str) -> {}:
"""Returns the endpoint for the shares catalog for the instance
See https://github.com/datafoodconsortium/ontology
"""
today, minPrice, maxPrice, matchPattern = _sharesCatalogParams(path)
dfcUrl = \
"http://static.datafoodconsortium.org/ontologies/DFC_FullModel.owl#"
dfcPtUrl = \
"http://static.datafoodconsortium.org/data/productTypes.rdf#"
dfcInstanceId = httpPrefix + '://' + domainFull + '/dfc-catalog'
endpoint = {
"@context": {
"DFC": dfcUrl,
"dfc-pt": dfcPtUrl,
"@base": "http://maPlateformeNationale"
},
"@id": dfcInstanceId,
"@type": "DFC:Entreprise",
"DFC:supplies": []
}
currDate = datetime.datetime.utcnow()
currDateStr = currDate.strftime("%Y-%m-%d")
for subdir, dirs, files in os.walk(baseDir + '/accounts'):
for acct in dirs:
if not isAccountDir(acct):
continue
nickname = acct.split('@')[0]
domain = acct.split('@')[1]
owner = httpPrefix + '://' + domainFull + '/users/' + nickname
sharesFilename = \
acctDir(baseDir, nickname, domain) + '/shares.json'
if not os.path.isfile(sharesFilename):
continue
sharesJson = loadJson(sharesFilename, 1, 2)
if not sharesJson:
continue
for itemID, item in sharesJson.items():
if not item.get('dfcId'):
continue
if '#' not in item['dfcId']:
continue
if today:
if not item['published'].startswith(currDateStr):
continue
if minPrice is not None:
if float(item['itemPrice']) < minPrice:
continue
if maxPrice is not None:
if float(item['itemPrice']) > maxPrice:
continue
description = item['displayName'] + ': ' + item['summary']
if matchPattern:
if not re.match(matchPattern, description):
continue
expireDate = \
datetime.datetime.fromtimestamp(item['durationSec'])
expireDateStr = expireDate.strftime("%Y-%m-%dT%H:%M:%SZ")
shareId = getValidSharedItemID(owner, item['displayName'])
dfcId = item['dfcId'].split('#')[1]
priceStr = item['itemPrice'] + ' ' + item['currency']
catalogItem = {
"@id": shareId,
"@type": "DFC:SuppliedProduct",
"DFC:hasType": "dfc-pt:" + dfcId,
"DFC:startDate": item['published'],
"DFC:expiryDate": expireDateStr,
"DFC:quantity": item['itemQty'],
"DFC:price": priceStr,
"DFC:Image": item['imageUrl'],
"DFC:description": description
}
endpoint['DFC:supplies'].append(catalogItem)
return endpoint
def sharesCatalogCSVEndpoint(baseDir: str, httpPrefix: str,
domainFull: str,
path: str) -> str:
"""Returns a CSV version of the shares catalog
"""
catalogJson = \
sharesCatalogEndpoint(baseDir, httpPrefix, domainFull, path)
if not catalogJson:
return ''
if not catalogJson.get('DFC:supplies'):
return ''
csvStr = \
'id,type,hasType,startDate,expiryDate,' + \
'quantity,price,Image,description\n'
for item in catalogJson['DFC:supplies']:
csvStr += item['@id'] + ','
csvStr += item['@type'] + ','
csvStr += item['DFC:hasType'] + ','
csvStr += item['DFC:startDate'] + ','
csvStr += item['DFC:expiryDate'] + ','
csvStr += item['DFC:quantity'] + ','
csvStr += item['DFC:price'] + ','
csvStr += item['DFC:Image'] + ','
csvStr += item['DFC:description'] + '\n'
return csvStr
def generateSharedItemFederationTokens(sharedItemsFederatedDomains: [],
baseDir: str) -> {}:
"""Generates tokens for shared item federated domains
"""
if not sharedItemsFederatedDomains:
return {}
tokensJson = {}
if baseDir:
tokensFilename = \
baseDir + '/accounts/sharedItemsFederationTokens.json'
if os.path.isfile(tokensFilename):
tokensJson = loadJson(tokensFilename, 1, 2)
if tokensJson is None:
tokensJson = {}
tokensAdded = False
for domain in sharedItemsFederatedDomains:
if not tokensJson.get(domain):
tokensJson[domain] = ''
tokensAdded = True
if not tokensAdded:
return tokensJson
if baseDir:
saveJson(tokensJson, tokensFilename)
return tokensJson
def updateSharedItemFederationToken(baseDir: str,
tokenDomain: str, newToken: str,
tokensJson: {} = None) -> {}:
"""Updates a token for shared item federation
"""
if not tokensJson:
tokensJson = {}
if baseDir:
tokensFilename = \
baseDir + '/accounts/sharedItemsFederationTokens.json'
if os.path.isfile(tokensFilename):
tokensJson = loadJson(tokensFilename, 1, 2)
if tokensJson is None:
tokensJson = {}
tokensJson[tokenDomain] = newToken
if baseDir:
saveJson(tokensJson, tokensFilename)
return tokensJson
def createSharedItemFederationToken(baseDir: str,
tokenDomain: str,
tokensJson: {} = None) -> {}:
"""Updates a token for shared item federation
"""
if not tokensJson:
tokensJson = {}
if baseDir:
tokensFilename = \
baseDir + '/accounts/sharedItemsFederationTokens.json'
if os.path.isfile(tokensFilename):
tokensJson = loadJson(tokensFilename, 1, 2)
if tokensJson is None:
tokensJson = {}
if not tokensJson.get(tokenDomain):
tokensJson[tokenDomain] = secrets.token_urlsafe(64)
if baseDir:
saveJson(tokensJson, tokensFilename)
return tokensJson
def authorizeSharedItems(sharedItemsFederatedDomains: [],
baseDir: str,
callingDomain: str,
authHeader: str,
debug: bool,
tokensJson: {} = None) -> bool:
"""HTTP simple token check for shared item federation
"""
if not sharedItemsFederatedDomains:
# no shared item federation
return False
if callingDomain not in sharedItemsFederatedDomains:
if debug:
print(callingDomain +
' is not in the shared items federation list')
return False
if 'Basic ' in authHeader:
if debug:
print('DEBUG: shared item federation should not use basic auth')
return False
providedToken = authHeader.replace('\n', '').replace('\r', '').strip()
if not providedToken:
if debug:
print('DEBUG: shared item federation token is empty')
return False
if len(providedToken) < 60:
if debug:
print('DEBUG: shared item federation token is too small ' +
providedToken)
return False
if not tokensJson:
tokensFilename = \
baseDir + '/accounts/sharedItemsFederationTokens.json'
if not os.path.isfile(tokensFilename):
if debug:
print('DEBUG: shared item federation tokens file missing ' +
tokensFilename)
return False
tokensJson = loadJson(tokensFilename, 1, 2)
if not tokensJson:
return False
if not tokensJson.get(callingDomain):
if debug:
print('DEBUG: shared item federation token ' +
'check failed for ' + callingDomain)
return False
if not constantTimeStringCheck(tokensJson[callingDomain], providedToken):
if debug:
print('DEBUG: shared item federation token ' +
'mismatch for ' + callingDomain)
return False
return True