469 lines
22 KiB
Python
469 lines
22 KiB
Python
import datetime
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import os
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import urllib.parse as urllib_parse
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from typing import Dict, List, Optional, Union
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from pyld import jsonld
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from pyld.jsonld import JsonLdError
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schemas = {
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"www.w3.org/ns/activitystreams": {
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"contentType": "application/ld+json",
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"documentUrl": "http://www.w3.org/ns/activitystreams",
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"contextUrl": None,
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"document": {
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"@context": {
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"@vocab": "_:",
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"xsd": "http://www.w3.org/2001/XMLSchema#",
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"as": "https://www.w3.org/ns/activitystreams#",
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"ldp": "http://www.w3.org/ns/ldp#",
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"vcard": "http://www.w3.org/2006/vcard/ns#",
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"id": "@id",
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"type": "@type",
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"Accept": "as:Accept",
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"Activity": "as:Activity",
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"IntransitiveActivity": "as:IntransitiveActivity",
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"Add": "as:Add",
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"Announce": "as:Announce",
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"Application": "as:Application",
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"Arrive": "as:Arrive",
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"Article": "as:Article",
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"Audio": "as:Audio",
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"Block": "as:Block",
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"Collection": "as:Collection",
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"CollectionPage": "as:CollectionPage",
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"Relationship": "as:Relationship",
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"Create": "as:Create",
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"Delete": "as:Delete",
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"Dislike": "as:Dislike",
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"Document": "as:Document",
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"Event": "as:Event",
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"Follow": "as:Follow",
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"Flag": "as:Flag",
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"Group": "as:Group",
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"Ignore": "as:Ignore",
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"Image": "as:Image",
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"Invite": "as:Invite",
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"Join": "as:Join",
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"Leave": "as:Leave",
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"Like": "as:Like",
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"Link": "as:Link",
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"Mention": "as:Mention",
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"Note": "as:Note",
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"Object": "as:Object",
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"Offer": "as:Offer",
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"OrderedCollection": "as:OrderedCollection",
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"OrderedCollectionPage": "as:OrderedCollectionPage",
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"Organization": "as:Organization",
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"Page": "as:Page",
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"Person": "as:Person",
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"Place": "as:Place",
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"Profile": "as:Profile",
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"Question": "as:Question",
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"Reject": "as:Reject",
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"Remove": "as:Remove",
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"Service": "as:Service",
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"TentativeAccept": "as:TentativeAccept",
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"TentativeReject": "as:TentativeReject",
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"Tombstone": "as:Tombstone",
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"Undo": "as:Undo",
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"Update": "as:Update",
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"Video": "as:Video",
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"View": "as:View",
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"Listen": "as:Listen",
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"Read": "as:Read",
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"Move": "as:Move",
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"Travel": "as:Travel",
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"IsFollowing": "as:IsFollowing",
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"IsFollowedBy": "as:IsFollowedBy",
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"IsContact": "as:IsContact",
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"IsMember": "as:IsMember",
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"subject": {"@id": "as:subject", "@type": "@id"},
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"relationship": {"@id": "as:relationship", "@type": "@id"},
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"actor": {"@id": "as:actor", "@type": "@id"},
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"attributedTo": {"@id": "as:attributedTo", "@type": "@id"},
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"attachment": {"@id": "as:attachment", "@type": "@id"},
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"bcc": {"@id": "as:bcc", "@type": "@id"},
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"bto": {"@id": "as:bto", "@type": "@id"},
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"cc": {"@id": "as:cc", "@type": "@id"},
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"context": {"@id": "as:context", "@type": "@id"},
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"current": {"@id": "as:current", "@type": "@id"},
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"first": {"@id": "as:first", "@type": "@id"},
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"generator": {"@id": "as:generator", "@type": "@id"},
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"icon": {"@id": "as:icon", "@type": "@id"},
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"image": {"@id": "as:image", "@type": "@id"},
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"inReplyTo": {"@id": "as:inReplyTo", "@type": "@id"},
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"items": {"@id": "as:items", "@type": "@id"},
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"instrument": {"@id": "as:instrument", "@type": "@id"},
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"orderedItems": {
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"@id": "as:items",
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"@type": "@id",
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"@container": "@list",
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},
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"last": {"@id": "as:last", "@type": "@id"},
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"location": {"@id": "as:location", "@type": "@id"},
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"next": {"@id": "as:next", "@type": "@id"},
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"object": {"@id": "as:object", "@type": "@id"},
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"oneOf": {"@id": "as:oneOf", "@type": "@id"},
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"anyOf": {"@id": "as:anyOf", "@type": "@id"},
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"closed": {"@id": "as:closed", "@type": "xsd:dateTime"},
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"origin": {"@id": "as:origin", "@type": "@id"},
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"accuracy": {"@id": "as:accuracy", "@type": "xsd:float"},
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"prev": {"@id": "as:prev", "@type": "@id"},
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"preview": {"@id": "as:preview", "@type": "@id"},
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"replies": {"@id": "as:replies", "@type": "@id"},
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"result": {"@id": "as:result", "@type": "@id"},
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"audience": {"@id": "as:audience", "@type": "@id"},
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"partOf": {"@id": "as:partOf", "@type": "@id"},
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"tag": {"@id": "as:tag", "@type": "@id"},
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"target": {"@id": "as:target", "@type": "@id"},
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"to": {"@id": "as:to", "@type": "@id"},
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"url": {"@id": "as:url", "@type": "@id"},
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"altitude": {"@id": "as:altitude", "@type": "xsd:float"},
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"content": "as:content",
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"contentMap": {"@id": "as:content", "@container": "@language"},
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"name": "as:name",
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"nameMap": {"@id": "as:name", "@container": "@language"},
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"duration": {"@id": "as:duration", "@type": "xsd:duration"},
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"endTime": {"@id": "as:endTime", "@type": "xsd:dateTime"},
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"height": {"@id": "as:height", "@type": "xsd:nonNegativeInteger"},
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"href": {"@id": "as:href", "@type": "@id"},
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"hreflang": "as:hreflang",
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"latitude": {"@id": "as:latitude", "@type": "xsd:float"},
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"longitude": {"@id": "as:longitude", "@type": "xsd:float"},
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"mediaType": "as:mediaType",
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"published": {"@id": "as:published", "@type": "xsd:dateTime"},
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"radius": {"@id": "as:radius", "@type": "xsd:float"},
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"rel": "as:rel",
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"startIndex": {
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"@id": "as:startIndex",
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"@type": "xsd:nonNegativeInteger",
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},
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"startTime": {"@id": "as:startTime", "@type": "xsd:dateTime"},
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"summary": "as:summary",
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"summaryMap": {"@id": "as:summary", "@container": "@language"},
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"totalItems": {
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"@id": "as:totalItems",
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"@type": "xsd:nonNegativeInteger",
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},
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"units": "as:units",
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"updated": {"@id": "as:updated", "@type": "xsd:dateTime"},
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"width": {"@id": "as:width", "@type": "xsd:nonNegativeInteger"},
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"describes": {"@id": "as:describes", "@type": "@id"},
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"formerType": {"@id": "as:formerType", "@type": "@id"},
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"deleted": {"@id": "as:deleted", "@type": "xsd:dateTime"},
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"inbox": {"@id": "ldp:inbox", "@type": "@id"},
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"outbox": {"@id": "as:outbox", "@type": "@id"},
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"following": {"@id": "as:following", "@type": "@id"},
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"followers": {"@id": "as:followers", "@type": "@id"},
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"streams": {"@id": "as:streams", "@type": "@id"},
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"preferredUsername": "as:preferredUsername",
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"endpoints": {"@id": "as:endpoints", "@type": "@id"},
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"uploadMedia": {"@id": "as:uploadMedia", "@type": "@id"},
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"proxyUrl": {"@id": "as:proxyUrl", "@type": "@id"},
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"liked": {"@id": "as:liked", "@type": "@id"},
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"oauthAuthorizationEndpoint": {
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"@id": "as:oauthAuthorizationEndpoint",
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"@type": "@id",
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},
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"oauthTokenEndpoint": {"@id": "as:oauthTokenEndpoint", "@type": "@id"},
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"provideClientKey": {"@id": "as:provideClientKey", "@type": "@id"},
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"signClientKey": {"@id": "as:signClientKey", "@type": "@id"},
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"sharedInbox": {"@id": "as:sharedInbox", "@type": "@id"},
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"Public": {"@id": "as:Public", "@type": "@id"},
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"source": "as:source",
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"likes": {"@id": "as:likes", "@type": "@id"},
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"shares": {"@id": "as:shares", "@type": "@id"},
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"alsoKnownAs": {"@id": "as:alsoKnownAs", "@type": "@id"},
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}
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},
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},
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"w3id.org/security/v1": {
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"contentType": "application/ld+json",
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"documentUrl": "http://w3id.org/security/v1",
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"contextUrl": None,
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"document": {
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"@context": {
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"id": "@id",
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"type": "@type",
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"dc": "http://purl.org/dc/terms/",
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"sec": "https://w3id.org/security#",
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"xsd": "http://www.w3.org/2001/XMLSchema#",
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"EcdsaKoblitzSignature2016": "sec:EcdsaKoblitzSignature2016",
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"Ed25519Signature2018": "sec:Ed25519Signature2018",
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"EncryptedMessage": "sec:EncryptedMessage",
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"GraphSignature2012": "sec:GraphSignature2012",
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"LinkedDataSignature2015": "sec:LinkedDataSignature2015",
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"LinkedDataSignature2016": "sec:LinkedDataSignature2016",
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"CryptographicKey": "sec:Key",
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"authenticationTag": "sec:authenticationTag",
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"canonicalizationAlgorithm": "sec:canonicalizationAlgorithm",
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"cipherAlgorithm": "sec:cipherAlgorithm",
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"cipherData": "sec:cipherData",
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"cipherKey": "sec:cipherKey",
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"created": {"@id": "dc:created", "@type": "xsd:dateTime"},
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"creator": {"@id": "dc:creator", "@type": "@id"},
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"digestAlgorithm": "sec:digestAlgorithm",
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"digestValue": "sec:digestValue",
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"domain": "sec:domain",
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"encryptionKey": "sec:encryptionKey",
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"expiration": {"@id": "sec:expiration", "@type": "xsd:dateTime"},
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"expires": {"@id": "sec:expiration", "@type": "xsd:dateTime"},
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"initializationVector": "sec:initializationVector",
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"iterationCount": "sec:iterationCount",
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"nonce": "sec:nonce",
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"normalizationAlgorithm": "sec:normalizationAlgorithm",
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"owner": {"@id": "sec:owner", "@type": "@id"},
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"password": "sec:password",
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"privateKey": {"@id": "sec:privateKey", "@type": "@id"},
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"privateKeyPem": "sec:privateKeyPem",
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"publicKey": {"@id": "sec:publicKey", "@type": "@id"},
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"publicKeyBase58": "sec:publicKeyBase58",
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"publicKeyPem": "sec:publicKeyPem",
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"publicKeyWif": "sec:publicKeyWif",
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"publicKeyService": {"@id": "sec:publicKeyService", "@type": "@id"},
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"revoked": {"@id": "sec:revoked", "@type": "xsd:dateTime"},
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"salt": "sec:salt",
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"signature": "sec:signature",
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"signatureAlgorithm": "sec:signingAlgorithm",
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"signatureValue": "sec:signatureValue",
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}
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},
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},
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"w3id.org/identity/v1": {
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"contentType": "application/ld+json",
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"documentUrl": "http://w3id.org/identity/v1",
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"contextUrl": None,
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"document": {
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"@context": {
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"id": "@id",
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"type": "@type",
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"cred": "https://w3id.org/credentials#",
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"dc": "http://purl.org/dc/terms/",
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"identity": "https://w3id.org/identity#",
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"perm": "https://w3id.org/permissions#",
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"ps": "https://w3id.org/payswarm#",
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"rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
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"rdfs": "http://www.w3.org/2000/01/rdf-schema#",
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"sec": "https://w3id.org/security#",
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"schema": "http://schema.org/",
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"xsd": "http://www.w3.org/2001/XMLSchema#",
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"Group": "https://www.w3.org/ns/activitystreams#Group",
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"claim": {"@id": "cred:claim", "@type": "@id"},
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"credential": {"@id": "cred:credential", "@type": "@id"},
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"issued": {"@id": "cred:issued", "@type": "xsd:dateTime"},
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"issuer": {"@id": "cred:issuer", "@type": "@id"},
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"recipient": {"@id": "cred:recipient", "@type": "@id"},
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"Credential": "cred:Credential",
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"CryptographicKeyCredential": "cred:CryptographicKeyCredential",
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"about": {"@id": "schema:about", "@type": "@id"},
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"address": {"@id": "schema:address", "@type": "@id"},
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"addressCountry": "schema:addressCountry",
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"addressLocality": "schema:addressLocality",
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"addressRegion": "schema:addressRegion",
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"comment": "rdfs:comment",
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"created": {"@id": "dc:created", "@type": "xsd:dateTime"},
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"creator": {"@id": "dc:creator", "@type": "@id"},
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"description": "schema:description",
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"email": "schema:email",
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"familyName": "schema:familyName",
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"givenName": "schema:givenName",
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"image": {"@id": "schema:image", "@type": "@id"},
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"label": "rdfs:label",
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"name": "schema:name",
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"postalCode": "schema:postalCode",
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"streetAddress": "schema:streetAddress",
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"title": "dc:title",
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"url": {"@id": "schema:url", "@type": "@id"},
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"Person": "schema:Person",
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"PostalAddress": "schema:PostalAddress",
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"Organization": "schema:Organization",
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"identityService": {"@id": "identity:identityService", "@type": "@id"},
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"idp": {"@id": "identity:idp", "@type": "@id"},
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"Identity": "identity:Identity",
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"paymentProcessor": "ps:processor",
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"preferences": {"@id": "ps:preferences", "@type": "@vocab"},
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"cipherAlgorithm": "sec:cipherAlgorithm",
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"cipherData": "sec:cipherData",
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"cipherKey": "sec:cipherKey",
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"digestAlgorithm": "sec:digestAlgorithm",
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"digestValue": "sec:digestValue",
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"domain": "sec:domain",
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"expires": {"@id": "sec:expiration", "@type": "xsd:dateTime"},
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"initializationVector": "sec:initializationVector",
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"member": {"@id": "schema:member", "@type": "@id"},
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"memberOf": {"@id": "schema:memberOf", "@type": "@id"},
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"nonce": "sec:nonce",
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"normalizationAlgorithm": "sec:normalizationAlgorithm",
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"owner": {"@id": "sec:owner", "@type": "@id"},
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"password": "sec:password",
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"privateKey": {"@id": "sec:privateKey", "@type": "@id"},
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"privateKeyPem": "sec:privateKeyPem",
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"publicKey": {"@id": "sec:publicKey", "@type": "@id"},
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"publicKeyPem": "sec:publicKeyPem",
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"publicKeyService": {"@id": "sec:publicKeyService", "@type": "@id"},
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"revoked": {"@id": "sec:revoked", "@type": "xsd:dateTime"},
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"signature": "sec:signature",
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"signatureAlgorithm": "sec:signatureAlgorithm",
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"signatureValue": "sec:signatureValue",
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"CryptographicKey": "sec:Key",
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"EncryptedMessage": "sec:EncryptedMessage",
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"GraphSignature2012": "sec:GraphSignature2012",
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"LinkedDataSignature2015": "sec:LinkedDataSignature2015",
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"accessControl": {"@id": "perm:accessControl", "@type": "@id"},
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"writePermission": {"@id": "perm:writePermission", "@type": "@id"},
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}
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},
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},
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"*/schemas/litepub-0.1.jsonld": {
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"contentType": "application/ld+json",
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"documentUrl": "http://w3id.org/security/v1",
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"contextUrl": None,
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"document": {
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"@context": [
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"https://www.w3.org/ns/activitystreams",
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"https://w3id.org/security/v1",
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{
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"Emoji": "toot:Emoji",
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"Hashtag": "as:Hashtag",
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"PropertyValue": "schema:PropertyValue",
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"atomUri": "ostatus:atomUri",
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"conversation": {"@id": "ostatus:conversation", "@type": "@id"},
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"discoverable": "toot:discoverable",
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"manuallyApprovesFollowers": "as:manuallyApprovesFollowers",
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"capabilities": "litepub:capabilities",
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"ostatus": "http://ostatus.org#",
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"schema": "http://schema.org#",
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"toot": "http://joinmastodon.org/ns#",
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"misskey": "https://misskey-hub.net/ns#",
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"fedibird": "http://fedibird.com/ns#",
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"value": "schema:value",
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"sensitive": "as:sensitive",
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"litepub": "http://litepub.social/ns#",
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"invisible": "litepub:invisible",
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"directMessage": "litepub:directMessage",
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"listMessage": {"@id": "litepub:listMessage", "@type": "@id"},
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"quoteUrl": "as:quoteUrl",
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"quoteUri": "fedibird:quoteUri",
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"oauthRegistrationEndpoint": {
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"@id": "litepub:oauthRegistrationEndpoint",
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"@type": "@id",
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},
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"EmojiReact": "litepub:EmojiReact",
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"ChatMessage": "litepub:ChatMessage",
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"alsoKnownAs": {"@id": "as:alsoKnownAs", "@type": "@id"},
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"vcard": "http://www.w3.org/2006/vcard/ns#",
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"formerRepresentations": "litepub:formerRepresentations",
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},
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]
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},
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},
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"joinmastodon.org/ns": {
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"contentType": "application/ld+json",
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"documentUrl": "http://joinmastodon.org/ns",
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"contextUrl": None,
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"document": {},
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},
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}
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DATETIME_FORMAT = "%Y-%m-%dT%H:%M:%SZ"
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DATETIME_MS_FORMAT = "%Y-%m-%dT%H:%M:%S.%fZ"
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def builtin_document_loader(url: str, options={}):
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# Get URL without scheme
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pieces = urllib_parse.urlparse(url)
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if pieces.hostname is None:
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raise JsonLdError(
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f"No schema built-in for {url!r}",
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"jsonld.LoadDocumentError",
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code="loading document failed",
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cause="NoHostnameError",
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)
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key = pieces.hostname + pieces.path.rstrip("/")
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try:
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return schemas[key]
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except KeyError:
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try:
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key = "*" + pieces.path.rstrip("/")
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return schemas[key]
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except KeyError:
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raise JsonLdError(
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f"No schema built-in for {key!r}",
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"jsonld.LoadDocumentError",
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code="loading document failed",
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cause="KeyError",
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)
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def canonicalise(json_data: Dict, include_security: bool = False) -> Dict:
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"""
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Given an ActivityPub JSON-LD document, round-trips it through the LD
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systems to end up in a canonicalised, compacted format.
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|
|
|
If no context is provided, supplies one automatically.
|
|
|
|
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):
|
|
raise ValueError("Pass decoded JSON data into LDDocument")
|
|
context: Union[str, List[str]]
|
|
if include_security:
|
|
context = [
|
|
"https://www.w3.org/ns/activitystreams",
|
|
"https://w3id.org/security/v1",
|
|
]
|
|
else:
|
|
context = "https://www.w3.org/ns/activitystreams"
|
|
if "@context" not in json_data:
|
|
json_data["@context"] = context
|
|
|
|
return jsonld.compact(jsonld.expand(json_data), context)
|
|
|
|
|
|
def get_list(container, key) -> List:
|
|
"""
|
|
Given a JSON-LD value (that can be either a list, or a dict if it's just
|
|
one item), always returns a list"""
|
|
if key not in container:
|
|
return []
|
|
value = container[key]
|
|
if not isinstance(value, list):
|
|
return [value]
|
|
return value
|
|
|
|
|
|
def format_ld_date(value: datetime.datetime) -> str:
|
|
return value.strftime(DATETIME_FORMAT)
|
|
|
|
|
|
def parse_ld_date(value: Optional[str]) -> Optional[datetime.datetime]:
|
|
if value is None:
|
|
return None
|
|
try:
|
|
return datetime.datetime.strptime(value, DATETIME_FORMAT).replace(
|
|
tzinfo=datetime.timezone.utc
|
|
)
|
|
except ValueError:
|
|
return datetime.datetime.strptime(value, DATETIME_MS_FORMAT).replace(
|
|
tzinfo=datetime.timezone.utc,
|
|
microsecond=0,
|
|
)
|
|
|
|
|
|
def media_type_from_filename(filename):
|
|
_, extension = os.path.splitext(filename)
|
|
if extension == ".png":
|
|
return "image/png"
|
|
elif extension in [".jpg", ".jpeg"]:
|
|
return "image/jpeg"
|
|
elif extension == ".gif":
|
|
return "image/gif"
|
|
elif extension == ".apng":
|
|
return "image/apng"
|
|
elif extension == ".webp":
|
|
return "image/webp"
|
|
else:
|
|
return "application/octet-stream"
|