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import urllib.parse as urllib_parse
from pyld import jsonld
from pyld.jsonld import JsonLdError
schemas = {
"www.w3.org/ns/activitystreams": {
"contentType": "application/ld+json",
"documentUrl": "http://www.w3.org/ns/activitystreams",
"contextUrl": None,
"document": {
"@context": {
"@vocab": "_:",
"xsd": "http://www.w3.org/2001/XMLSchema#",
"as": "https://www.w3.org/ns/activitystreams#",
"ldp": "http://www.w3.org/ns/ldp#",
"vcard": "http://www.w3.org/2006/vcard/ns#",
"id": "@id",
"type": "@type",
"Accept": "as:Accept",
"Activity": "as:Activity",
"IntransitiveActivity": "as:IntransitiveActivity",
"Add": "as:Add",
"Announce": "as:Announce",
"Application": "as:Application",
"Arrive": "as:Arrive",
"Article": "as:Article",
"Audio": "as:Audio",
"Block": "as:Block",
"Collection": "as:Collection",
"CollectionPage": "as:CollectionPage",
"Relationship": "as:Relationship",
"Create": "as:Create",
"Delete": "as:Delete",
"Dislike": "as:Dislike",
"Document": "as:Document",
"Event": "as:Event",
"Follow": "as:Follow",
"Flag": "as:Flag",
"Group": "as:Group",
"Ignore": "as:Ignore",
"Image": "as:Image",
"Invite": "as:Invite",
"Join": "as:Join",
"Leave": "as:Leave",
"Like": "as:Like",
"Link": "as:Link",
"Mention": "as:Mention",
"Note": "as:Note",
"Object": "as:Object",
"Offer": "as:Offer",
"OrderedCollection": "as:OrderedCollection",
"OrderedCollectionPage": "as:OrderedCollectionPage",
"Organization": "as:Organization",
"Page": "as:Page",
"Person": "as:Person",
"Place": "as:Place",
"Profile": "as:Profile",
"Question": "as:Question",
"Reject": "as:Reject",
"Remove": "as:Remove",
"Service": "as:Service",
"TentativeAccept": "as:TentativeAccept",
"TentativeReject": "as:TentativeReject",
"Tombstone": "as:Tombstone",
"Undo": "as:Undo",
"Update": "as:Update",
"Video": "as:Video",
"View": "as:View",
"Listen": "as:Listen",
"Read": "as:Read",
"Move": "as:Move",
"Travel": "as:Travel",
"IsFollowing": "as:IsFollowing",
"IsFollowedBy": "as:IsFollowedBy",
"IsContact": "as:IsContact",
"IsMember": "as:IsMember",
"subject": {"@id": "as:subject", "@type": "@id"},
"relationship": {"@id": "as:relationship", "@type": "@id"},
"actor": {"@id": "as:actor", "@type": "@id"},
"attributedTo": {"@id": "as:attributedTo", "@type": "@id"},
"attachment": {"@id": "as:attachment", "@type": "@id"},
"bcc": {"@id": "as:bcc", "@type": "@id"},
"bto": {"@id": "as:bto", "@type": "@id"},
"cc": {"@id": "as:cc", "@type": "@id"},
"context": {"@id": "as:context", "@type": "@id"},
"current": {"@id": "as:current", "@type": "@id"},
"first": {"@id": "as:first", "@type": "@id"},
"generator": {"@id": "as:generator", "@type": "@id"},
"icon": {"@id": "as:icon", "@type": "@id"},
"image": {"@id": "as:image", "@type": "@id"},
"inReplyTo": {"@id": "as:inReplyTo", "@type": "@id"},
"items": {"@id": "as:items", "@type": "@id"},
"instrument": {"@id": "as:instrument", "@type": "@id"},
"orderedItems": {
"@id": "as:items",
"@type": "@id",
"@container": "@list",
},
"last": {"@id": "as:last", "@type": "@id"},
"location": {"@id": "as:location", "@type": "@id"},
"next": {"@id": "as:next", "@type": "@id"},
"object": {"@id": "as:object", "@type": "@id"},
"oneOf": {"@id": "as:oneOf", "@type": "@id"},
"anyOf": {"@id": "as:anyOf", "@type": "@id"},
"closed": {"@id": "as:closed", "@type": "xsd:dateTime"},
"origin": {"@id": "as:origin", "@type": "@id"},
"accuracy": {"@id": "as:accuracy", "@type": "xsd:float"},
"prev": {"@id": "as:prev", "@type": "@id"},
"preview": {"@id": "as:preview", "@type": "@id"},
"replies": {"@id": "as:replies", "@type": "@id"},
"result": {"@id": "as:result", "@type": "@id"},
"audience": {"@id": "as:audience", "@type": "@id"},
"partOf": {"@id": "as:partOf", "@type": "@id"},
"tag": {"@id": "as:tag", "@type": "@id"},
"target": {"@id": "as:target", "@type": "@id"},
"to": {"@id": "as:to", "@type": "@id"},
"url": {"@id": "as:url", "@type": "@id"},
"altitude": {"@id": "as:altitude", "@type": "xsd:float"},
"content": "as:content",
"contentMap": {"@id": "as:content", "@container": "@language"},
"name": "as:name",
"nameMap": {"@id": "as:name", "@container": "@language"},
"duration": {"@id": "as:duration", "@type": "xsd:duration"},
"endTime": {"@id": "as:endTime", "@type": "xsd:dateTime"},
"height": {"@id": "as:height", "@type": "xsd:nonNegativeInteger"},
"href": {"@id": "as:href", "@type": "@id"},
"hreflang": "as:hreflang",
"latitude": {"@id": "as:latitude", "@type": "xsd:float"},
"longitude": {"@id": "as:longitude", "@type": "xsd:float"},
"mediaType": "as:mediaType",
"published": {"@id": "as:published", "@type": "xsd:dateTime"},
"radius": {"@id": "as:radius", "@type": "xsd:float"},
"rel": "as:rel",
"startIndex": {
"@id": "as:startIndex",
"@type": "xsd:nonNegativeInteger",
},
"startTime": {"@id": "as:startTime", "@type": "xsd:dateTime"},
"summary": "as:summary",
"summaryMap": {"@id": "as:summary", "@container": "@language"},
"totalItems": {
"@id": "as:totalItems",
"@type": "xsd:nonNegativeInteger",
},
"units": "as:units",
"updated": {"@id": "as:updated", "@type": "xsd:dateTime"},
"width": {"@id": "as:width", "@type": "xsd:nonNegativeInteger"},
"describes": {"@id": "as:describes", "@type": "@id"},
"formerType": {"@id": "as:formerType", "@type": "@id"},
"deleted": {"@id": "as:deleted", "@type": "xsd:dateTime"},
"inbox": {"@id": "ldp:inbox", "@type": "@id"},
"outbox": {"@id": "as:outbox", "@type": "@id"},
"following": {"@id": "as:following", "@type": "@id"},
"followers": {"@id": "as:followers", "@type": "@id"},
"streams": {"@id": "as:streams", "@type": "@id"},
"preferredUsername": "as:preferredUsername",
"endpoints": {"@id": "as:endpoints", "@type": "@id"},
"uploadMedia": {"@id": "as:uploadMedia", "@type": "@id"},
"proxyUrl": {"@id": "as:proxyUrl", "@type": "@id"},
"liked": {"@id": "as:liked", "@type": "@id"},
"oauthAuthorizationEndpoint": {
"@id": "as:oauthAuthorizationEndpoint",
"@type": "@id",
},
"oauthTokenEndpoint": {"@id": "as:oauthTokenEndpoint", "@type": "@id"},
"provideClientKey": {"@id": "as:provideClientKey", "@type": "@id"},
"signClientKey": {"@id": "as:signClientKey", "@type": "@id"},
"sharedInbox": {"@id": "as:sharedInbox", "@type": "@id"},
"Public": {"@id": "as:Public", "@type": "@id"},
"source": "as:source",
"likes": {"@id": "as:likes", "@type": "@id"},
"shares": {"@id": "as:shares", "@type": "@id"},
"alsoKnownAs": {"@id": "as:alsoKnownAs", "@type": "@id"},
}
},
},
"w3id.org/security/v1": {
"contentType": "application/ld+json",
"documentUrl": "http://w3id.org/security/v1",
"contextUrl": None,
"document": {
"@context": {
"id": "@id",
"type": "@type",
"dc": "http://purl.org/dc/terms/",
"sec": "https://w3id.org/security#",
"xsd": "http://www.w3.org/2001/XMLSchema#",
"EcdsaKoblitzSignature2016": "sec:EcdsaKoblitzSignature2016",
"Ed25519Signature2018": "sec:Ed25519Signature2018",
"EncryptedMessage": "sec:EncryptedMessage",
"GraphSignature2012": "sec:GraphSignature2012",
"LinkedDataSignature2015": "sec:LinkedDataSignature2015",
"LinkedDataSignature2016": "sec:LinkedDataSignature2016",
"CryptographicKey": "sec:Key",
"authenticationTag": "sec:authenticationTag",
"canonicalizationAlgorithm": "sec:canonicalizationAlgorithm",
"cipherAlgorithm": "sec:cipherAlgorithm",
"cipherData": "sec:cipherData",
"cipherKey": "sec:cipherKey",
"created": {"@id": "dc:created", "@type": "xsd:dateTime"},
"creator": {"@id": "dc:creator", "@type": "@id"},
"digestAlgorithm": "sec:digestAlgorithm",
"digestValue": "sec:digestValue",
"domain": "sec:domain",
"encryptionKey": "sec:encryptionKey",
"expiration": {"@id": "sec:expiration", "@type": "xsd:dateTime"},
"expires": {"@id": "sec:expiration", "@type": "xsd:dateTime"},
"initializationVector": "sec:initializationVector",
"iterationCount": "sec:iterationCount",
"nonce": "sec:nonce",
"normalizationAlgorithm": "sec:normalizationAlgorithm",
"owner": {"@id": "sec:owner", "@type": "@id"},
"password": "sec:password",
"privateKey": {"@id": "sec:privateKey", "@type": "@id"},
"privateKeyPem": "sec:privateKeyPem",
"publicKey": {"@id": "sec:publicKey", "@type": "@id"},
"publicKeyBase58": "sec:publicKeyBase58",
"publicKeyPem": "sec:publicKeyPem",
"publicKeyWif": "sec:publicKeyWif",
"publicKeyService": {"@id": "sec:publicKeyService", "@type": "@id"},
"revoked": {"@id": "sec:revoked", "@type": "xsd:dateTime"},
"salt": "sec:salt",
"signature": "sec:signature",
"signatureAlgorithm": "sec:signingAlgorithm",
"signatureValue": "sec:signatureValue",
}
},
},
}
def builtin_document_loader(url: str, options={}):
# Get URL without scheme
pieces = urllib_parse.urlparse(url)
if pieces.hostname is None:
raise JsonLdError(
f"No schema built-in for {url!r}",
"jsonld.LoadDocumentError",
code="loading document failed",
cause="NoHostnameError",
)
key = pieces.hostname + pieces.path.rstrip("/")
try:
return schemas[key]
except KeyError:
raise JsonLdError(
f"No schema built-in for {key!r}",
"jsonld.LoadDocumentError",
code="loading document failed",
cause="KeyError",
)
def canonicalise(json_data, include_security=False):
"""
Given an ActivityPub JSON-LD document, round-trips it through the LD
systems to end up in a canonicalised, compacted format.
For most well-structured incoming data this won't actually do anything,
but it's probably good to abide by the spec.
"""
if not isinstance(json_data, (dict, list)):
raise ValueError("Pass decoded JSON data into LDDocument")
return jsonld.compact(
jsonld.expand(json_data),
(
[
"https://www.w3.org/ns/activitystreams",
"https://w3id.org/security/v1",
]
if include_security
else "https://www.w3.org/ns/activitystreams"
),
)
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