Add a file-caching of common JSON-LD schema

So we don't need to HTTP-get common (and sometimes
down (I'm looking at you, purl.archive.org; though
it's not your fault, the DDOS attack was huge)
schemas.
This commit is contained in:
Jaidyn Ann 2024-10-18 11:03:44 -05:00
parent 16a1bcbacb
commit 06de0e0191
5 changed files with 518 additions and 3 deletions

49
schema/litepub-0.1.jsonld Normal file
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@ -0,0 +1,49 @@
{
"@context": [
"https://www.w3.org/ns/activitystreams",
"https://w3id.org/security/v1",
"https://purl.archive.org/socialweb/webfinger",
{
"Emoji": "toot:Emoji",
"Hashtag": "as:Hashtag",
"PropertyValue": "schema:PropertyValue",
"atomUri": "ostatus:atomUri",
"conversation": {
"@id": "ostatus:conversation",
"@type": "@id"
},
"discoverable": "toot:discoverable",
"manuallyApprovesFollowers": "as:manuallyApprovesFollowers",
"capabilities": "litepub:capabilities",
"ostatus": "http://ostatus.org#",
"schema": "http://schema.org#",
"toot": "http://joinmastodon.org/ns#",
"fedibird": "http://fedibird.com/ns#",
"value": "schema:value",
"sensitive": "as:sensitive",
"litepub": "http://litepub.social/ns#",
"invisible": "litepub:invisible",
"directMessage": "litepub:directMessage",
"listMessage": {
"@id": "litepub:listMessage",
"@type": "@id"
},
"quoteUrl": "as:quoteUrl",
"quoteUri": "fedibird:quoteUri",
"oauthRegistrationEndpoint": {
"@id": "litepub:oauthRegistrationEndpoint",
"@type": "@id"
},
"EmojiReact": "litepub:EmojiReact",
"ChatMessage": "litepub:ChatMessage",
"alsoKnownAs": {
"@id": "as:alsoKnownAs",
"@type": "@id"
},
"vcard": "http://www.w3.org/2006/vcard/ns#",
"formerRepresentations": "litepub:formerRepresentations",
"sm": "http://smithereen.software/ns#",
"nonAnonymous": "sm:nonAnonymous"
}
]
}

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@ -0,0 +1,10 @@
{
"@context": {
"wf": "https://web.archive.org/web/20240820094819/https://purl.archive.org/socialweb/webfinger#",
"xsd": "http://www.w3.org/2001/XMLSchema#",
"webfinger": {
"@id": "wf:webfinger",
"@type": "xsd:string"
}
}
}

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@ -0,0 +1,50 @@
{
"@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"
}
}

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@ -0,0 +1,379 @@
{
"@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"
}
}
}

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@ -56,6 +56,9 @@ Used for the :UPDATE feature of DEFINE-JSON-TYPE, so you can add a slot to a pre
"Caches context-texts fetched over HTTP.
Maps URLs to text-content, so we dont have to download the same context again and again.")
(defvar *http-cache-dirs* (list (asdf:system-relative-pathname :activity-servist/json-ld "schema"))
"A list of directories used for caching remote JSON-LD caches. The cache is read-only.")
;;; Base class
@ -640,15 +643,39 @@ defined in the context."))
"Makes a GET request to URI, returning the resultant string.
Each resultant string is cached in the *HTTP-CACHE* global variable; if the same
URI is requested more than once, the cached version will subsequently be
returned."
(or (gethash uri *http-cache*)
(setf (gethash uri *http-cache*)
returned.
In addition, there is a filesystem cache; if a file named afer the URI
(sans the protocol, replacing slashes '/' with hyphens '-') is found in
the directories *HTTP-CACHE-DIRS*, its contents will be returned instead."
(or (gethash uri *http-cache*) ; Try our downloaded/read-file cache.
(setf (gethash uri *http-cache*) ; Try our read-only filesystem cache...
(let* ((file-leaf (str:replace-all "/" "-" (uri-sans-scheme uri)))
(cached-filepath (find-file file-leaf *http-cache-dirs*)))
(when cached-filepath
(alexandria:read-file-into-string cached-filepath))))
(setf (gethash uri *http-cache*) ; If not cached, download & cache it.
(http-get uri :headers headers))))
(defun find-file (file-leaf dirs)
"Search for a file of the given name FILE-LEAF within directories DIRS.
Returns the first found matching file."
(or (find file-leaf (uiop:directory-files (format nil "~A/*" (car dirs)))
:test (lambda (a b)
(equal a (file-namestring b))))
(unless (not (cdr dirs))
(get-file-from-dirs file-leaf (cdr dirs)))))
(defun http-get (uri &key headers)
"Makes a GET request to URI, returning the resultant string."
(dexador:get uri :headers headers :force-string 't))
(defun uri-sans-scheme (uri)
"Returns a URI string without its scheme."
(str:replace-all
(format nil "~A://" (quri:uri-scheme (quri:uri "https://dad.com/")))
""
uri))
(defun remove-from-alist (item alist)
"Removes the cell corresponding to ITEM from an association list."
(remove item alist